Installment sales.

To figure the amount to include on line 12, follow the steps below for each installment sale of property held more than 1 year for which you didn’t make an entry in Part I of your Form 4797 for the year of sale.

Step 1. Figure the smaller of (a) the depreciation allowed or allowable, or (b) the total gain for the sale. This is the smaller of line 22 or line 24 of your 2025 Form 4797 (or the comparable lines of Form 4797 for the year of sale) for the property.

Step 2. Reduce the amount figured in Step 1 by any section 1250 ordinary income recapture for the sale. This is the amount from line 26g of your 2025 Form 4797 (or the comparable line of Form 4797 for the year of sale) for the property. The result is your total unrecaptured section 1250 gain that must be allocated to the installment payments received from the sale.

Step 3. Generally, the amount of capital gain on each installment payment is treated as unrecaptured section 1250 gain until the total unrecaptured section 1250 gain figured in Step 2 has been used in full. Figure the amount of gain treated as unrecaptured section 1250 gain for installment payments received in 2025 as the smaller of (a) the amount from line 26 or line 37 of your 2025 Form 6252, whichever applies; or (b) the amount of unrecaptured section 1250 gain remaining to be reported. This amount is generally the total unrecaptured section 1250 gain for the sale reduced by all gain reported in prior years (excluding section 1250 ordinary income recapture). However, if you chose not to treat all of the gain from payments received after May 6, 1997, and before August 24, 1999, as unrecaptured section 1250 gain, use only the amount you chose to treat as unrecaptured section 1250 gain for those payments to reduce the total unrecaptured section 1250 gain remaining to be reported for the sale. Include this amount on line 12.

Other sales or dispositions of section 1250 property.

For each sale of property held more than 1 year (for which you didn’t make an entry in Part I of Form 4797), figure the smaller of (a) the depreciation allowed or allowable, or (b) the total gain for the sale. This is the smaller of line 22 or line 24 of Form 4797 for the property. Next, reduce that amount by any section 1250 ordinary income recapture for the sale. This is the amount from line 26g of Form 4797 for the property. The result is the total unrecaptured section 1250 gain for the sale. Include this amount on line 12.