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Rounding

If any increase under this subsection is not a multiple of $100, such increase shall be rounded to the next lowest multiple of $100.

in view

Whole section

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Rules

Data relation ctc_qualifying_child_of_tax_unit

#ctc_qualifying_child_of_tax_unit

Data Relation

predicate: ctc_qualifying_child_of_tax_unit
arity: 2

- name: ctc_qualifying_child_of_tax_unit
  kind: data_relation
  data_relation:
    predicate: ctc_qualifying_child_of_tax_unit
    arity: 2
    arguments:
      - TaxUnit
      - Person

ctc_child_amount_base

Parameter

source: 26 USC 24(a)

- name: ctc_child_amount_base
  kind: parameter
  dtype: Money
  unit: USD
  source: 26 USC 24(a)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: amount
          source:
            corpus_citation_path: us/statute/26/24
            text: an amount equal to $1,000
  versions:
    - effective_from: '2018-01-01'
      formula: '1000'

ctc_phaseout_reduction_per_increment

Parameter

source: 26 USC 24(b)(1)

- name: ctc_phaseout_reduction_per_increment
  kind: parameter
  dtype: Money
  unit: USD
  source: 26 USC 24(b)(1)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: amount
          source:
            corpus_citation_path: us/statute/26/24
            text: reduced (but not below zero) by $50
  versions:
    - effective_from: '2018-01-01'
      formula: '50'

ctc_phaseout_increment

Parameter

source: 26 USC 24(b)(1)

- name: ctc_phaseout_increment
  kind: parameter
  dtype: Money
  unit: USD
  source: 26 USC 24(b)(1)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: amount
          source:
            corpus_citation_path: us/statute/26/24
            text: for each $1,000 (or fraction thereof)
  versions:
    - effective_from: '2018-01-01'
      formula: '1000'

ctc_joint_threshold_base

Parameter

source: 26 USC 24(b)(2)(A)

- name: ctc_joint_threshold_base
  kind: parameter
  dtype: Money
  unit: USD
  source: 26 USC 24(b)(2)(A)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: amount
          source:
            corpus_citation_path: us/statute/26/24
            text: $110,000 in the case of a joint return
  versions:
    - effective_from: '2018-01-01'
      formula: '110000'

ctc_unmarried_threshold_base

Parameter

source: 26 USC 24(b)(2)(B)

- name: ctc_unmarried_threshold_base
  kind: parameter
  dtype: Money
  unit: USD
  source: 26 USC 24(b)(2)(B)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: amount
          source:
            corpus_citation_path: us/statute/26/24
            text: $75,000 in the case of an individual who is not married
  versions:
    - effective_from: '2018-01-01'
      formula: '75000'

ctc_separate_threshold_base

Parameter

source: 26 USC 24(b)(2)(C)

- name: ctc_separate_threshold_base
  kind: parameter
  dtype: Money
  unit: USD
  source: 26 USC 24(b)(2)(C)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: amount
          source:
            corpus_citation_path: us/statute/26/24
            text: $55,000 in the case of a married individual filing a separate return
  versions:
    - effective_from: '2018-01-01'
      formula: '55000'

ctc_child_age_ceiling_exclusive

Parameter

source: 26 USC 24(c)(1)

- name: ctc_child_age_ceiling_exclusive
  kind: parameter
  dtype: Integer
  source: 26 USC 24(c)(1)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: parameter
          source:
            corpus_citation_path: us/statute/26/24
            text: who has not attained age 17
  versions:
    - effective_from: '2018-01-01'
      formula: '17'

ctc_full_taxable_year_months

Parameter

source: 26 USC 24(f)

- name: ctc_full_taxable_year_months
  kind: parameter
  dtype: Integer
  source: 26 USC 24(f)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: parameter
          source:
            corpus_citation_path: us/statute/26/24
            text: a period of less than 12 months
  versions:
    - effective_from: '2018-01-01'
      formula: '12'

ctc_fraud_disallowance_years

Parameter

source: 26 USC 24(g)(1)(B)(i)

- name: ctc_fraud_disallowance_years
  kind: parameter
  dtype: Integer
  source: 26 USC 24(g)(1)(B)(i)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: parameter
          source:
            corpus_citation_path: us/statute/26/24
            text: the period of 10 taxable years
  versions:
    - effective_from: '2018-01-01'
      formula: '10'

ctc_reckless_disallowance_years

Parameter

source: 26 USC 24(g)(1)(B)(ii)

- name: ctc_reckless_disallowance_years
  kind: parameter
  dtype: Integer
  source: 26 USC 24(g)(1)(B)(ii)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: parameter
          source:
            corpus_citation_path: us/statute/26/24
            text: the period of 2 taxable years
  versions:
    - effective_from: '2018-01-01'
      formula: '2'

ctc_modified_adjusted_gross_income

Derived

source: 26 USC 24(b)(1)

- name: ctc_modified_adjusted_gross_income
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 24(b)(1)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: definition
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              modified adjusted gross income means adjusted gross income increased by any amount
              excluded from gross income under section 911, 931, or 933
  versions:
    - effective_from: '2018-01-01'
      formula: |-
        adjusted_gross_income
        + ctc_foreign_earned_income_exclusion_adjustment
        + ctc_possession_income_exclusion_adjustment
        + ctc_puerto_rico_income_exclusion_adjustment

ctc_qualifying_child

Derived

source: 26 USC 24(c)

- name: ctc_qualifying_child
  kind: derived
  entity: Person
  dtype: Judgment
  period: Year
  source: 26 USC 24(c)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: definition
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              qualifying child means a qualifying child of the taxpayer (as defined in section
              152(c)) who has not attained age 17
        - path: versions[0].formula
          kind: exception
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              shall not include any individual who would not be a dependent if subparagraph (A) of
              section 152(b)(3) were applied without regard to all that follows "resident of the
              United States"
  versions:
    - effective_from: '2018-01-01'
      formula: |-
        ctc_child_satisfies_dependency_rules
        and age < ctc_child_age_ceiling_exclusive
        and ctc_child_deduction_allowed
        and not certain_noncitizen_exception_applies

ctc_child_identification_requirement_satisfied

Derived

source: 26 USC 24(e)(1)

- name: ctc_child_identification_requirement_satisfied
  kind: derived
  entity: Person
  dtype: Judgment
  period: Year
  source: 26 USC 24(e)(1)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: condition
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              includes the name and taxpayer identification number of such qualifying child on the
              return ... and such taxpayer identification number was issued on or before the due
              date
  versions:
    - effective_from: '2018-01-01'
      formula: |-
        qualifying_child_name_included_on_return
        and qualifying_child_tin_included_on_return
        and qualifying_child_tin_issued_on_or_before_return_due_date

ctc_qualifying_children_count

Derived

source: 26 USC 24(a), (c), (e)(1)

- name: ctc_qualifying_children_count
  kind: derived
  entity: TaxUnit
  dtype: Count
  period: Year
  source: 26 USC 24(a), (c), (e)(1)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: formula
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              with respect to each qualifying child ... No credit shall be allowed ... unless the
              taxpayer includes the name and taxpayer identification number of such qualifying child
  versions:
    - effective_from: '2018-01-01'
      formula: |-
        count_where(ctc_qualifying_child_of_tax_unit, ctc_qualifying_child)
        - count_where(ctc_qualifying_child_of_tax_unit, ctc_child_missing_identification)

ctc_taxpayer_identification_requirement_satisfied

Derived

source: 26 USC 24(e)(2)

- name: ctc_taxpayer_identification_requirement_satisfied
  kind: derived
  entity: TaxUnit
  dtype: Judgment
  period: Year
  source: 26 USC 24(e)(2)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: condition
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              No credit shall be allowed ... if the taxpayer identification number of the taxpayer
              was issued after the due date
  versions:
    - effective_from: '2018-01-01'
      formula: not taxpayer_identification_number_issued_after_return_due_date

ctc_full_taxable_year_requirement_satisfied

Derived

source: 26 USC 24(f)

- name: ctc_full_taxable_year_requirement_satisfied
  kind: derived
  entity: TaxUnit
  dtype: Judgment
  period: Year
  source: 26 USC 24(f)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: exception
          source:
            corpus_citation_path: us/statute/26/24
            text: Except in the case of a taxable year closed by reason of the death of the taxpayer
        - path: versions[0].formula
          kind: condition
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              no credit shall be allowable ... in the case of a taxable year covering a period of
              less than 12 months
  versions:
    - effective_from: '2018-01-01'
      formula: |-
        taxable_year_months >= ctc_full_taxable_year_months
        or taxable_year_closed_by_reason_of_taxpayer_death

ctc_prior_claim_restriction_satisfied

Derived

source: 26 USC 24(g)

- name: ctc_prior_claim_restriction_satisfied
  kind: derived
  entity: TaxUnit
  dtype: Judgment
  period: Year
  source: 26 USC 24(g)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: exception
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              No credit shall be allowed under this section for any taxable year in the disallowance
              period
        - path: versions[0].formula
          kind: condition
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              no credit shall be allowed ... unless the taxpayer provides such information as the
              Secretary may require to demonstrate eligibility
  versions:
    - effective_from: '2018-01-01'
      formula: |-
        not ctc_fraud_disallowance_period_applies
        and not ctc_reckless_or_intentional_disregard_disallowance_period_applies
        and not prior_deficiency_denial_without_required_eligibility_information

ctc_phaseout_threshold_base

Derived

source: 26 USC 24(b)(2)

- name: ctc_phaseout_threshold_base
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 24(b)(2)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: formula
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              threshold amount means $110,000 in the case of a joint return, $75,000 in the case of
              an individual who is not married, and $55,000 in the case of a married individual
              filing a separate return
  versions:
    - effective_from: '2018-01-01'
      formula: |-
        if ctc_phaseout_joint_threshold_applies:
            ctc_joint_threshold_base
        else:
            if ctc_phaseout_separate_threshold_applies:
                ctc_separate_threshold_base
            else:
                ctc_unmarried_threshold_base

ctc_phaseout_threshold

Derived

source: 26 USC 24(b)(2), 24(h)(3)

- name: ctc_phaseout_threshold
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 24(b)(2), 24(h)(3)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: formula
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              In lieu of the amount determined under subsection (b)(2), the threshold amount shall
              be $400,000 in the case of a joint return ($200,000 in any other case)
        - path: versions[0].formula
          kind: import
          import:
            target: us:statutes/26/24/h#ctc_phase_out_threshold_under_subsection_h
            output: ctc_phase_out_threshold_under_subsection_h
            hash: sha256:80d253ad020aaf460588e169963b2d126ea532359124436c2905c343b7dbc103
  versions:
    - effective_from: '2018-01-01'
      formula: |-
        if ctc_subsection_h_special_rules_apply:
            ctc_phase_out_threshold_under_subsection_h
        else:
            ctc_phaseout_threshold_base

ctc_maximum_before_phaseout

Derived

source: 26 USC 24(a), 24(h)(2), 24(h)(4)

- name: ctc_maximum_before_phaseout
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 24(a), 24(h)(2), 24(h)(4)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: formula
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              with respect to each qualifying child ... $1,000; after 2017, subsection (a) is
              applied by substituting $2,200, and the credit is increased by $500 for certain other
              dependents
        - path: versions[0].formula
          kind: import
          import:
            target: us:statutes/26/24/h#ctc_maximum_before_phase_out_under_subsection_h
            output: ctc_maximum_before_phase_out_under_subsection_h
            hash: sha256:80d253ad020aaf460588e169963b2d126ea532359124436c2905c343b7dbc103
  versions:
    - effective_from: '2018-01-01'
      formula: |-
        if ctc_subsection_h_special_rules_apply:
            ctc_maximum_before_phase_out_under_subsection_h
        else:
            ctc_qualifying_children_count * ctc_child_amount_base

ctc_phaseout_amount

Derived

source: 26 USC 24(b)(1)

- name: ctc_phaseout_amount
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 24(b)(1)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: formula
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              reduced (but not below zero) by $50 for each $1,000 (or fraction thereof) by which
              modified adjusted gross income exceeds the threshold amount
  versions:
    - effective_from: '2018-01-01'
      formula: >-
        ctc_phaseout_reduction_per_increment

        * ceil(max(0, ctc_modified_adjusted_gross_income - ctc_phaseout_threshold) /
        ctc_phaseout_increment)

ctc_before_advance_payments

Derived

source: 26 USC 24(a), 24(b), 24(e), 24(f), 24(g), 24(h)

- name: ctc_before_advance_payments
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 24(a), 24(b), 24(e), 24(f), 24(g), 24(h)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: formula
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              There shall be allowed as a credit ... reduced (but not below zero) ... No credit
              shall be allowed if identification, short-year, or prior-claim restrictions apply
  versions:
    - effective_from: '2018-01-01'
      formula: |-
        if ctc_taxpayer_identification_requirement_satisfied
           and ctc_full_taxable_year_requirement_satisfied
           and ctc_prior_claim_restriction_satisfied:
            max(0, ctc_maximum_before_phaseout - ctc_phaseout_amount)
        else:
            0

ctc_after_advance_payments

Derived

source: 26 USC 24(j)(1)

- name: ctc_after_advance_payments
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 24(j)(1)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: formula
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              reduced (but not below zero) by the aggregate amount of payments made under section
              7527A
  versions:
    - effective_from: '2018-01-01'
      formula: max(0, ctc_before_advance_payments - ctc_advance_payments_received)

loading…

us/statute/26/24/i/3 — Rounding · Axiom

Rounding

Official source

If any increase under this subsection is not a multiple of $100, such increase shall be rounded to the next lowest multiple of $100.

in view

Whole section

▸rulespec code

Shown source

statutes/26/24.yaml

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This encoding covers the parent provision us/statute/26/24; no dedicated encoding exists for this exact provision yet.

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Rules

Data relation ctc_qualifying_child_of_tax_unit

#ctc_qualifying_child_of_tax_unit

Data Relation

predicate: ctc_qualifying_child_of_tax_unit
arity: 2

- name: ctc_qualifying_child_of_tax_unit
  kind: data_relation
  data_relation:
    predicate: ctc_qualifying_child_of_tax_unit
    arity: 2
    arguments:
      - TaxUnit
      - Person

ctc_child_amount_base

Parameter

source: 26 USC 24(a)

- name: ctc_child_amount_base
  kind: parameter
  dtype: Money
  unit: USD
  source: 26 USC 24(a)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: amount
          source:
            corpus_citation_path: us/statute/26/24
            text: an amount equal to $1,000
  versions:
    - effective_from: '2018-01-01'
      formula: '1000'

ctc_phaseout_reduction_per_increment

Parameter

source: 26 USC 24(b)(1)

- name: ctc_phaseout_reduction_per_increment
  kind: parameter
  dtype: Money
  unit: USD
  source: 26 USC 24(b)(1)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: amount
          source:
            corpus_citation_path: us/statute/26/24
            text: reduced (but not below zero) by $50
  versions:
    - effective_from: '2018-01-01'
      formula: '50'

ctc_phaseout_increment

Parameter

source: 26 USC 24(b)(1)

- name: ctc_phaseout_increment
  kind: parameter
  dtype: Money
  unit: USD
  source: 26 USC 24(b)(1)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: amount
          source:
            corpus_citation_path: us/statute/26/24
            text: for each $1,000 (or fraction thereof)
  versions:
    - effective_from: '2018-01-01'
      formula: '1000'

ctc_joint_threshold_base

Parameter

source: 26 USC 24(b)(2)(A)

- name: ctc_joint_threshold_base
  kind: parameter
  dtype: Money
  unit: USD
  source: 26 USC 24(b)(2)(A)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: amount
          source:
            corpus_citation_path: us/statute/26/24
            text: $110,000 in the case of a joint return
  versions:
    - effective_from: '2018-01-01'
      formula: '110000'

ctc_unmarried_threshold_base

Parameter

source: 26 USC 24(b)(2)(B)

- name: ctc_unmarried_threshold_base
  kind: parameter
  dtype: Money
  unit: USD
  source: 26 USC 24(b)(2)(B)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: amount
          source:
            corpus_citation_path: us/statute/26/24
            text: $75,000 in the case of an individual who is not married
  versions:
    - effective_from: '2018-01-01'
      formula: '75000'

ctc_separate_threshold_base

Parameter

source: 26 USC 24(b)(2)(C)

- name: ctc_separate_threshold_base
  kind: parameter
  dtype: Money
  unit: USD
  source: 26 USC 24(b)(2)(C)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: amount
          source:
            corpus_citation_path: us/statute/26/24
            text: $55,000 in the case of a married individual filing a separate return
  versions:
    - effective_from: '2018-01-01'
      formula: '55000'

ctc_child_age_ceiling_exclusive

Parameter

source: 26 USC 24(c)(1)

- name: ctc_child_age_ceiling_exclusive
  kind: parameter
  dtype: Integer
  source: 26 USC 24(c)(1)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: parameter
          source:
            corpus_citation_path: us/statute/26/24
            text: who has not attained age 17
  versions:
    - effective_from: '2018-01-01'
      formula: '17'

ctc_full_taxable_year_months

Parameter

source: 26 USC 24(f)

- name: ctc_full_taxable_year_months
  kind: parameter
  dtype: Integer
  source: 26 USC 24(f)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: parameter
          source:
            corpus_citation_path: us/statute/26/24
            text: a period of less than 12 months
  versions:
    - effective_from: '2018-01-01'
      formula: '12'

ctc_fraud_disallowance_years

Parameter

source: 26 USC 24(g)(1)(B)(i)

- name: ctc_fraud_disallowance_years
  kind: parameter
  dtype: Integer
  source: 26 USC 24(g)(1)(B)(i)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: parameter
          source:
            corpus_citation_path: us/statute/26/24
            text: the period of 10 taxable years
  versions:
    - effective_from: '2018-01-01'
      formula: '10'

ctc_reckless_disallowance_years

Parameter

source: 26 USC 24(g)(1)(B)(ii)

- name: ctc_reckless_disallowance_years
  kind: parameter
  dtype: Integer
  source: 26 USC 24(g)(1)(B)(ii)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: parameter
          source:
            corpus_citation_path: us/statute/26/24
            text: the period of 2 taxable years
  versions:
    - effective_from: '2018-01-01'
      formula: '2'

ctc_modified_adjusted_gross_income

Derived

source: 26 USC 24(b)(1)

- name: ctc_modified_adjusted_gross_income
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 24(b)(1)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: definition
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              modified adjusted gross income means adjusted gross income increased by any amount
              excluded from gross income under section 911, 931, or 933
  versions:
    - effective_from: '2018-01-01'
      formula: |-
        adjusted_gross_income
        + ctc_foreign_earned_income_exclusion_adjustment
        + ctc_possession_income_exclusion_adjustment
        + ctc_puerto_rico_income_exclusion_adjustment

ctc_qualifying_child

Derived

source: 26 USC 24(c)

- name: ctc_qualifying_child
  kind: derived
  entity: Person
  dtype: Judgment
  period: Year
  source: 26 USC 24(c)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: definition
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              qualifying child means a qualifying child of the taxpayer (as defined in section
              152(c)) who has not attained age 17
        - path: versions[0].formula
          kind: exception
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              shall not include any individual who would not be a dependent if subparagraph (A) of
              section 152(b)(3) were applied without regard to all that follows "resident of the
              United States"
  versions:
    - effective_from: '2018-01-01'
      formula: |-
        ctc_child_satisfies_dependency_rules
        and age < ctc_child_age_ceiling_exclusive
        and ctc_child_deduction_allowed
        and not certain_noncitizen_exception_applies

ctc_child_identification_requirement_satisfied

Derived

source: 26 USC 24(e)(1)

- name: ctc_child_identification_requirement_satisfied
  kind: derived
  entity: Person
  dtype: Judgment
  period: Year
  source: 26 USC 24(e)(1)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: condition
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              includes the name and taxpayer identification number of such qualifying child on the
              return ... and such taxpayer identification number was issued on or before the due
              date
  versions:
    - effective_from: '2018-01-01'
      formula: |-
        qualifying_child_name_included_on_return
        and qualifying_child_tin_included_on_return
        and qualifying_child_tin_issued_on_or_before_return_due_date

ctc_qualifying_children_count

Derived

source: 26 USC 24(a), (c), (e)(1)

- name: ctc_qualifying_children_count
  kind: derived
  entity: TaxUnit
  dtype: Count
  period: Year
  source: 26 USC 24(a), (c), (e)(1)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: formula
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              with respect to each qualifying child ... No credit shall be allowed ... unless the
              taxpayer includes the name and taxpayer identification number of such qualifying child
  versions:
    - effective_from: '2018-01-01'
      formula: |-
        count_where(ctc_qualifying_child_of_tax_unit, ctc_qualifying_child)
        - count_where(ctc_qualifying_child_of_tax_unit, ctc_child_missing_identification)

ctc_taxpayer_identification_requirement_satisfied

Derived

source: 26 USC 24(e)(2)

- name: ctc_taxpayer_identification_requirement_satisfied
  kind: derived
  entity: TaxUnit
  dtype: Judgment
  period: Year
  source: 26 USC 24(e)(2)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: condition
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              No credit shall be allowed ... if the taxpayer identification number of the taxpayer
              was issued after the due date
  versions:
    - effective_from: '2018-01-01'
      formula: not taxpayer_identification_number_issued_after_return_due_date

ctc_full_taxable_year_requirement_satisfied

Derived

source: 26 USC 24(f)

- name: ctc_full_taxable_year_requirement_satisfied
  kind: derived
  entity: TaxUnit
  dtype: Judgment
  period: Year
  source: 26 USC 24(f)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: exception
          source:
            corpus_citation_path: us/statute/26/24
            text: Except in the case of a taxable year closed by reason of the death of the taxpayer
        - path: versions[0].formula
          kind: condition
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              no credit shall be allowable ... in the case of a taxable year covering a period of
              less than 12 months
  versions:
    - effective_from: '2018-01-01'
      formula: |-
        taxable_year_months >= ctc_full_taxable_year_months
        or taxable_year_closed_by_reason_of_taxpayer_death

ctc_prior_claim_restriction_satisfied

Derived

source: 26 USC 24(g)

- name: ctc_prior_claim_restriction_satisfied
  kind: derived
  entity: TaxUnit
  dtype: Judgment
  period: Year
  source: 26 USC 24(g)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: exception
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              No credit shall be allowed under this section for any taxable year in the disallowance
              period
        - path: versions[0].formula
          kind: condition
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              no credit shall be allowed ... unless the taxpayer provides such information as the
              Secretary may require to demonstrate eligibility
  versions:
    - effective_from: '2018-01-01'
      formula: |-
        not ctc_fraud_disallowance_period_applies
        and not ctc_reckless_or_intentional_disregard_disallowance_period_applies
        and not prior_deficiency_denial_without_required_eligibility_information

ctc_phaseout_threshold_base

Derived

source: 26 USC 24(b)(2)

- name: ctc_phaseout_threshold_base
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 24(b)(2)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: formula
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              threshold amount means $110,000 in the case of a joint return, $75,000 in the case of
              an individual who is not married, and $55,000 in the case of a married individual
              filing a separate return
  versions:
    - effective_from: '2018-01-01'
      formula: |-
        if ctc_phaseout_joint_threshold_applies:
            ctc_joint_threshold_base
        else:
            if ctc_phaseout_separate_threshold_applies:
                ctc_separate_threshold_base
            else:
                ctc_unmarried_threshold_base

ctc_phaseout_threshold

Derived

source: 26 USC 24(b)(2), 24(h)(3)

- name: ctc_phaseout_threshold
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 24(b)(2), 24(h)(3)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: formula
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              In lieu of the amount determined under subsection (b)(2), the threshold amount shall
              be $400,000 in the case of a joint return ($200,000 in any other case)
        - path: versions[0].formula
          kind: import
          import:
            target: us:statutes/26/24/h#ctc_phase_out_threshold_under_subsection_h
            output: ctc_phase_out_threshold_under_subsection_h
            hash: sha256:80d253ad020aaf460588e169963b2d126ea532359124436c2905c343b7dbc103
  versions:
    - effective_from: '2018-01-01'
      formula: |-
        if ctc_subsection_h_special_rules_apply:
            ctc_phase_out_threshold_under_subsection_h
        else:
            ctc_phaseout_threshold_base

ctc_maximum_before_phaseout

Derived

source: 26 USC 24(a), 24(h)(2), 24(h)(4)

- name: ctc_maximum_before_phaseout
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 24(a), 24(h)(2), 24(h)(4)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: formula
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              with respect to each qualifying child ... $1,000; after 2017, subsection (a) is
              applied by substituting $2,200, and the credit is increased by $500 for certain other
              dependents
        - path: versions[0].formula
          kind: import
          import:
            target: us:statutes/26/24/h#ctc_maximum_before_phase_out_under_subsection_h
            output: ctc_maximum_before_phase_out_under_subsection_h
            hash: sha256:80d253ad020aaf460588e169963b2d126ea532359124436c2905c343b7dbc103
  versions:
    - effective_from: '2018-01-01'
      formula: |-
        if ctc_subsection_h_special_rules_apply:
            ctc_maximum_before_phase_out_under_subsection_h
        else:
            ctc_qualifying_children_count * ctc_child_amount_base

ctc_phaseout_amount

Derived

source: 26 USC 24(b)(1)

- name: ctc_phaseout_amount
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 24(b)(1)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: formula
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              reduced (but not below zero) by $50 for each $1,000 (or fraction thereof) by which
              modified adjusted gross income exceeds the threshold amount
  versions:
    - effective_from: '2018-01-01'
      formula: >-
        ctc_phaseout_reduction_per_increment

        * ceil(max(0, ctc_modified_adjusted_gross_income - ctc_phaseout_threshold) /
        ctc_phaseout_increment)

ctc_before_advance_payments

Derived

source: 26 USC 24(a), 24(b), 24(e), 24(f), 24(g), 24(h)

- name: ctc_before_advance_payments
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 24(a), 24(b), 24(e), 24(f), 24(g), 24(h)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: formula
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              There shall be allowed as a credit ... reduced (but not below zero) ... No credit
              shall be allowed if identification, short-year, or prior-claim restrictions apply
  versions:
    - effective_from: '2018-01-01'
      formula: |-
        if ctc_taxpayer_identification_requirement_satisfied
           and ctc_full_taxable_year_requirement_satisfied
           and ctc_prior_claim_restriction_satisfied:
            max(0, ctc_maximum_before_phaseout - ctc_phaseout_amount)
        else:
            0

ctc_after_advance_payments

Derived

source: 26 USC 24(j)(1)

- name: ctc_after_advance_payments
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 24(j)(1)
  metadata:
    proof:
      atoms:
        - path: versions[0].formula
          kind: formula
          source:
            corpus_citation_path: us/statute/26/24
            text: >-
              reduced (but not below zero) by the aggregate amount of payments made under section
              7527A
  versions:
    - effective_from: '2018-01-01'
      formula: max(0, ctc_before_advance_payments - ctc_advance_payments_received)