loading…

Corporations

2 rules

(A) Applicable corporations In the case of an applicable corporation, the tentative minimum tax for the taxable year shall be the excess of— (i) 15 percent of the adjusted financial statement income for the taxable year (as determined under section 56A), over (ii) the corporate AMT foreign tax credit for the taxable year.

(B) Other corporations In the case of any corporation which is not an applicable corporation, the tentative minimum tax for the taxable year shall be zero.

in view

Whole section

Encodings · 2

amt_excluded_deductions26 USC § 55 (b)(2) (D) · derived

26 USC 55(b)(2)(D), 26 USC 56(b)(1)(D)

name: amt_excluded_deductions
kind: derived
entity: TaxUnit
dtype: Money
period: Year
unit: USD
source: 26 USC 55(b)(2)(D), 26 USC 56(b)(1)(D)
versions:
  - effective_from: '2026-01-01'
    formula: |-
      if tax_unit_itemizes:
          salt_deduction + misc_deduction
      else:
          standard_deduction

open in graph ↗

amt_income26 USC § 55 (b)(2) (D) · derived

26 USC 55(b)(2)(D), 26 USC 56

name: amt_income
kind: derived
entity: TaxUnit
dtype: Money
period: Year
unit: USD
source: 26 USC 55(b)(2)(D), 26 USC 56
versions:
  - effective_from: '2026-01-01'
    formula: |-
      taxable_income
      + amt_excluded_deductions
      + amt_separate_addition
      + exemptions

open in graph ↗

▸rulespec code

Shown source

statutes/26/55.yaml

Displaying the canonical repository encoding.

This encoding covers the parent provision us/statute/26/55; no dedicated encoding exists for this exact provision yet.

View on GitHub

Rules

amt_lower_rate

Parameter

source: 26 USC 55(b)(1)(A)(i)

- name: amt_lower_rate
  kind: parameter
  dtype: Rate
  source: 26 USC 55(b)(1)(A)(i)
  versions:
    - effective_from: '2026-01-01'
      formula: '0.26'

amt_higher_rate

Parameter

source: 26 USC 55(b)(1)(A)(ii)

- name: amt_higher_rate
  kind: parameter
  dtype: Rate
  source: 26 USC 55(b)(1)(A)(ii)
  versions:
    - effective_from: '2026-01-01'
      formula: '0.28'

amt_exemption_phaseout_rate

Parameter

source: 26 USC 55(d)(4)(A)(ii)(IV)

- name: amt_exemption_phaseout_rate
  kind: parameter
  dtype: Rate
  source: 26 USC 55(d)(4)(A)(ii)(IV)
  versions:
    - effective_from: '2026-01-01'
      formula: '0.50'

amt_excluded_deductions

Derived(D) in text ↖

source: 26 USC 55(b)(2)(D), 26 USC 56(b)(1)(D)

- name: amt_excluded_deductions
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 55(b)(2)(D), 26 USC 56(b)(1)(D)
  versions:
    - effective_from: '2026-01-01'
      formula: |-
        if tax_unit_itemizes:
            salt_deduction + misc_deduction
        else:
            standard_deduction

amt_separate_addition

Derived

source: 26 USC 55(d)(2), 55(d)(4)(A)(ii)(IV)

- name: amt_separate_addition
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 55(d)(2), 55(d)(4)(A)(ii)(IV)
  versions:
    - effective_from: '2026-01-01'
      formula: |-
        if filing_status == 2:
            min(
                amt_exemption_base_amount,
                amt_exemption_phaseout_rate
                * max(
                    0,
                    taxable_income
                    + amt_excluded_deductions
                    - amt_exemption_complete_phaseout_separate
                )
            )
        else:
            0

amt_income

Derived(D) in text ↖

source: 26 USC 55(b)(2)(D), 26 USC 56

- name: amt_income
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 55(b)(2)(D), 26 USC 56
  versions:
    - effective_from: '2026-01-01'
      formula: |-
        taxable_income
        + amt_excluded_deductions
        + amt_separate_addition
        + exemptions

amt_exemption_phaseout

Derived

source: 26 USC 55(d)(2), 55(d)(4)

- name: amt_exemption_phaseout
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 55(d)(2), 55(d)(4)
  versions:
    - effective_from: '2026-01-01'
      formula: |-
        amt_exemption_phaseout_rate
        * max(0, amt_income - amt_exemption_phaseout_start)

amt_exemption_before_kiddie_tax_limit

Derived

source: 26 USC 55(d)

- name: amt_exemption_before_kiddie_tax_limit
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 55(d)
  versions:
    - effective_from: '2026-01-01'
      formula: max(0, amt_exemption_base_amount - amt_exemption_phaseout)

amt_kiddie_tax_exemption_limit

Derived

source: 26 USC 59(j), Rev. Proc. 2025-32 section 3.11

- name: amt_kiddie_tax_exemption_limit
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 59(j), Rev. Proc. 2025-32 section 3.11
  versions:
    - effective_from: '2026-01-01'
      formula: filer_adjusted_earnings + amt_kiddie_tax_exemption_addition

amt_exemption

Derived

source: 26 USC 55(d), 26 USC 59(j)

- name: amt_exemption
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 55(d), 26 USC 59(j)
  versions:
    - effective_from: '2026-01-01'
      formula: |-
        if amt_kiddie_tax_applies:
            min(
                amt_exemption_before_kiddie_tax_limit,
                amt_kiddie_tax_exemption_limit
            )
        else:
            amt_exemption_before_kiddie_tax_limit

amt_income_for_exemption_offset

Derived

source: 26 USC 55(b)(1)(B), 26 USC 59(j)

- name: amt_income_for_exemption_offset
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 55(b)(1)(B), 26 USC 59(j)
  versions:
    - effective_from: '2026-01-01'
      formula: |-
        if amt_kiddie_tax_applies:
            taxable_income
        else:
            amt_income

amt_income_less_exemptions

Derived

source: 26 USC 55(b)(1)(B), 55(d), 26 USC 59(j)

- name: amt_income_less_exemptions
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 55(b)(1)(B), 55(d), 26 USC 59(j)
  versions:
    - effective_from: '2026-01-01'
      formula: max(0, amt_income_for_exemption_offset - amt_exemption)

amt_lower_base_tax

Derived

source: 26 USC 55(b)(1)(A)(i)

- name: amt_lower_base_tax
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 55(b)(1)(A)(i)
  versions:
    - effective_from: '2026-01-01'
      formula: |-
        amt_lower_rate
        * min(amt_income_less_exemptions, amt_twenty_eight_percent_threshold)

amt_higher_base_tax

Derived

source: 26 USC 55(b)(1)(A)(ii)

- name: amt_higher_base_tax
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 55(b)(1)(A)(ii)
  versions:
    - effective_from: '2026-01-01'
      formula: |-
        amt_higher_rate
        * max(
            0,
            amt_income_less_exemptions - amt_twenty_eight_percent_threshold
        )

amt_base_tax

Derived

source: 26 USC 55(b)(1)(A)

- name: amt_base_tax
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 55(b)(1)(A)
  versions:
    - effective_from: '2026-01-01'
      formula: amt_lower_base_tax + amt_higher_base_tax

amt_tax_before_foreign_tax_credit

Derived

source: 26 USC 55(b)(1)(A), 55(b)(3)

- name: amt_tax_before_foreign_tax_credit
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 55(b)(1)(A), 55(b)(3)
  versions:
    - effective_from: '2026-01-01'
      formula: |-
        if amt_part_iii_required:
            min(amt_base_tax, amt_tax_including_capital_gains)
        else:
            amt_base_tax

alternative_minimum_tax

Derived

source: 26 USC 55(a), 55(b)(1)(A)

- name: alternative_minimum_tax
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 55(a), 55(b)(1)(A)
  versions:
    - effective_from: '2026-01-01'
      formula: |-
        max(
            0,
            (
                amt_tax_before_foreign_tax_credit
                - alternative_minimum_tax_foreign_tax_credit
            )
            - max(
                0,
                regular_tax_before_credits
                + capital_gains_tax
                - alternative_minimum_tax_foreign_tax_credit
                - form_4972_lumpsum_distributions
            )
        )

income_tax_before_credits

Derived

source: 26 USC 1 and 55(a)

- name: income_tax_before_credits
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 1 and 55(a)
  versions:
    - effective_from: '2026-01-01'
      formula: income_tax_main_rates + capital_gains_tax + alternative_minimum_tax

▸citations (1)

References

This rule cites 1 other rule.

26 USC § 56AinferredUS Federal › Statutes › Title 26 › § 56A

loading…

us/statute/26/55/b/2 — Corporations · Axiom

Corporations

2 rules

Official source

graph ↗build calculator ↗

(B) Other corporations In the case of any corporation which is not an applicable corporation, the tentative minimum tax for the taxable year shall be zero.

in view

Whole section

Encodings · 2

amt_excluded_deductions26 USC § 55 (b)(2) (D) · derived

26 USC 55(b)(2)(D), 26 USC 56(b)(1)(D)

name: amt_excluded_deductions
kind: derived
entity: TaxUnit
dtype: Money
period: Year
unit: USD
source: 26 USC 55(b)(2)(D), 26 USC 56(b)(1)(D)
versions:
  - effective_from: '2026-01-01'
    formula: |-
      if tax_unit_itemizes:
          salt_deduction + misc_deduction
      else:
          standard_deduction

open in graph ↗

amt_income26 USC § 55 (b)(2) (D) · derived

26 USC 55(b)(2)(D), 26 USC 56

name: amt_income
kind: derived
entity: TaxUnit
dtype: Money
period: Year
unit: USD
source: 26 USC 55(b)(2)(D), 26 USC 56
versions:
  - effective_from: '2026-01-01'
    formula: |-
      taxable_income
      + amt_excluded_deductions
      + amt_separate_addition
      + exemptions

open in graph ↗

▸rulespec code

Shown source

statutes/26/55.yaml

Displaying the canonical repository encoding.

This encoding covers the parent provision us/statute/26/55; no dedicated encoding exists for this exact provision yet.

View on GitHub

Rules

amt_lower_rate

Parameter

source: 26 USC 55(b)(1)(A)(i)

- name: amt_lower_rate
  kind: parameter
  dtype: Rate
  source: 26 USC 55(b)(1)(A)(i)
  versions:
    - effective_from: '2026-01-01'
      formula: '0.26'

amt_higher_rate

Parameter

source: 26 USC 55(b)(1)(A)(ii)

- name: amt_higher_rate
  kind: parameter
  dtype: Rate
  source: 26 USC 55(b)(1)(A)(ii)
  versions:
    - effective_from: '2026-01-01'
      formula: '0.28'

amt_exemption_phaseout_rate

Parameter

source: 26 USC 55(d)(4)(A)(ii)(IV)

- name: amt_exemption_phaseout_rate
  kind: parameter
  dtype: Rate
  source: 26 USC 55(d)(4)(A)(ii)(IV)
  versions:
    - effective_from: '2026-01-01'
      formula: '0.50'

amt_excluded_deductions

Derived(D) in text ↖

source: 26 USC 55(b)(2)(D), 26 USC 56(b)(1)(D)

- name: amt_excluded_deductions
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 55(b)(2)(D), 26 USC 56(b)(1)(D)
  versions:
    - effective_from: '2026-01-01'
      formula: |-
        if tax_unit_itemizes:
            salt_deduction + misc_deduction
        else:
            standard_deduction

amt_separate_addition

Derived

source: 26 USC 55(d)(2), 55(d)(4)(A)(ii)(IV)

- name: amt_separate_addition
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 55(d)(2), 55(d)(4)(A)(ii)(IV)
  versions:
    - effective_from: '2026-01-01'
      formula: |-
        if filing_status == 2:
            min(
                amt_exemption_base_amount,
                amt_exemption_phaseout_rate
                * max(
                    0,
                    taxable_income
                    + amt_excluded_deductions
                    - amt_exemption_complete_phaseout_separate
                )
            )
        else:
            0

amt_income

Derived(D) in text ↖

source: 26 USC 55(b)(2)(D), 26 USC 56

- name: amt_income
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 55(b)(2)(D), 26 USC 56
  versions:
    - effective_from: '2026-01-01'
      formula: |-
        taxable_income
        + amt_excluded_deductions
        + amt_separate_addition
        + exemptions

amt_exemption_phaseout

Derived

source: 26 USC 55(d)(2), 55(d)(4)

- name: amt_exemption_phaseout
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 55(d)(2), 55(d)(4)
  versions:
    - effective_from: '2026-01-01'
      formula: |-
        amt_exemption_phaseout_rate
        * max(0, amt_income - amt_exemption_phaseout_start)

amt_exemption_before_kiddie_tax_limit

Derived

source: 26 USC 55(d)

- name: amt_exemption_before_kiddie_tax_limit
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 55(d)
  versions:
    - effective_from: '2026-01-01'
      formula: max(0, amt_exemption_base_amount - amt_exemption_phaseout)

amt_kiddie_tax_exemption_limit

Derived

source: 26 USC 59(j), Rev. Proc. 2025-32 section 3.11

- name: amt_kiddie_tax_exemption_limit
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 59(j), Rev. Proc. 2025-32 section 3.11
  versions:
    - effective_from: '2026-01-01'
      formula: filer_adjusted_earnings + amt_kiddie_tax_exemption_addition

amt_exemption

Derived

source: 26 USC 55(d), 26 USC 59(j)

- name: amt_exemption
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 55(d), 26 USC 59(j)
  versions:
    - effective_from: '2026-01-01'
      formula: |-
        if amt_kiddie_tax_applies:
            min(
                amt_exemption_before_kiddie_tax_limit,
                amt_kiddie_tax_exemption_limit
            )
        else:
            amt_exemption_before_kiddie_tax_limit

amt_income_for_exemption_offset

Derived

source: 26 USC 55(b)(1)(B), 26 USC 59(j)

- name: amt_income_for_exemption_offset
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 55(b)(1)(B), 26 USC 59(j)
  versions:
    - effective_from: '2026-01-01'
      formula: |-
        if amt_kiddie_tax_applies:
            taxable_income
        else:
            amt_income

amt_income_less_exemptions

Derived

source: 26 USC 55(b)(1)(B), 55(d), 26 USC 59(j)

- name: amt_income_less_exemptions
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 55(b)(1)(B), 55(d), 26 USC 59(j)
  versions:
    - effective_from: '2026-01-01'
      formula: max(0, amt_income_for_exemption_offset - amt_exemption)

amt_lower_base_tax

Derived

source: 26 USC 55(b)(1)(A)(i)

- name: amt_lower_base_tax
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 55(b)(1)(A)(i)
  versions:
    - effective_from: '2026-01-01'
      formula: |-
        amt_lower_rate
        * min(amt_income_less_exemptions, amt_twenty_eight_percent_threshold)

amt_higher_base_tax

Derived

source: 26 USC 55(b)(1)(A)(ii)

- name: amt_higher_base_tax
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 55(b)(1)(A)(ii)
  versions:
    - effective_from: '2026-01-01'
      formula: |-
        amt_higher_rate
        * max(
            0,
            amt_income_less_exemptions - amt_twenty_eight_percent_threshold
        )

amt_base_tax

Derived

source: 26 USC 55(b)(1)(A)

- name: amt_base_tax
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 55(b)(1)(A)
  versions:
    - effective_from: '2026-01-01'
      formula: amt_lower_base_tax + amt_higher_base_tax

amt_tax_before_foreign_tax_credit

Derived

source: 26 USC 55(b)(1)(A), 55(b)(3)

- name: amt_tax_before_foreign_tax_credit
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 55(b)(1)(A), 55(b)(3)
  versions:
    - effective_from: '2026-01-01'
      formula: |-
        if amt_part_iii_required:
            min(amt_base_tax, amt_tax_including_capital_gains)
        else:
            amt_base_tax

alternative_minimum_tax

Derived

source: 26 USC 55(a), 55(b)(1)(A)

- name: alternative_minimum_tax
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 55(a), 55(b)(1)(A)
  versions:
    - effective_from: '2026-01-01'
      formula: |-
        max(
            0,
            (
                amt_tax_before_foreign_tax_credit
                - alternative_minimum_tax_foreign_tax_credit
            )
            - max(
                0,
                regular_tax_before_credits
                + capital_gains_tax
                - alternative_minimum_tax_foreign_tax_credit
                - form_4972_lumpsum_distributions
            )
        )

income_tax_before_credits

Derived

source: 26 USC 1 and 55(a)

- name: income_tax_before_credits
  kind: derived
  entity: TaxUnit
  dtype: Money
  period: Year
  unit: USD
  source: 26 USC 1 and 55(a)
  versions:
    - effective_from: '2026-01-01'
      formula: income_tax_main_rates + capital_gains_tax + alternative_minimum_tax

▸citations (1)

References

This rule cites 1 other rule.

26 USC § 56AinferredUS Federal › Statutes › Title 26 › § 56A