! preference item taken into account on this line

CAUTION shouldn’t be taken into account in figuring the amount

to enter on any other adjustment or tax preference item line of this form.

This section describes when depreciation must be refigured for the AMT and how to figure the amount to enter on line 2l.

• Property (other than section 1250 property) placed in service after 1998 that is depreciated for the regular tax using the 150% declining balance method or the straight line method.

• Property for which you elected to use the alternative depreciation system (ADS) of section 168(g) for the regular tax.

Don’t use line 2l for depreciation related to the following.

• Passive activities. Take this adjustment into account on line 2m.

• An activity for which you aren’t at risk. Take this adjustment into account on line 2n.

• Income or loss from a partnership or an S corporation if the basis limitations apply. Take this adjustment into account on line 2n.

• Qualified property that is or was eligible for a special depreciation allowance if the depreciable basis of the property is the same for the AMT and the regular tax. This applies to any special depreciation allowance, including those for disaster assistance property, reuse and recycling property, cellulosic biofuel plant property, second generation biofuel plant property, New York Liberty Zone property, Gulf Opportunity Zone property, and Kansas disaster area recovery assistance property. The special allowance is deductible for the AMT, and no adjustment is required for any depreciation figured on the remaining basis of the qualified property because the depreciable basis of the property is the same for the AMT and the regular tax. If you elected not to have any special depreciation allowance apply, the property may be subject to an AMT adjustment for depreciation if it was placed in service before 2016. It isn’t subject to an AMT adjustment for depreciation if it was placed in service after

• Any part of the cost of any property for which you elected to take a section 179 expense deduction. The reduction to the depreciable basis of section 179 property by the amount of the section 179 expense deduction is the same for the regular tax and the AMT.

• Motion picture films, videotapes, or sound recordings.

• Property depreciated under the unit-of-production method or any other method not expressed in a term of years.

• Indian reservation property that meets the requirements of section 168(j).

• A natural gas gathering line placed in service after April 11,

• A tax shelter farm activity. Take this adjustment into account on line 3.

Instructions for Form 6251 (2025) 5

How Is Depreciation Refigured for the AMT?

Property placed in service after 1998. Use the same convention and recovery period used for the regular tax. For property other than section 1250 property, use the 150% declining balance method, switching to straight line the first tax year it gives a larger deduction. For section 1250 property, use the straight line method.

How Is the AMT Class Life Determined?

The class life used for the AMT isn’t necessarily the same as the recovery period used for the regular tax. The class lives for the AMT are listed in Rev. Proc. 87-56, 1987-2 C.B. 674, and in Pub. 946, How To Depreciate Property. Use 12 years for any tangible personal property not assigned a class life.

See Pub. 946 for tables that can be used to figure

TIP AMT depreciation. Rev. Proc. 89-15, 1989-1 C.B.

816, has special rules for short years and for property disposed of before the end of the recovery period.

How Is the Adjustment Figured?

Subtract the AMT deduction for depreciation from the regular tax deduction and enter the result. If the AMT deduction is more than the regular tax deduction, enter the difference as a negative amount.

In addition to the AMT adjustment to your deduction for depreciation, also adjust the amount of depreciation that was capitalized, if any, to account for the difference between the rules for the regular tax and the AMT. Include on this line the current year adjustment to taxable income, if any, resulting from the difference.

Line 2m—Passive Activities Refigure your passive activity gains and losses for the AMT by taking into account all adjustments and preferences and any AMT prior year unallowed losses that apply to that activity. You may fill out an AMT Form 8582, Passive Activity Loss Limitations, and AMT versions of the other forms or schedules on which your passive activities are reported, to determine your passive activity loss allowed for the AMT, but

don’t file the AMT versions of these forms and schedules with your tax return. Instead, keep them with your records.

Example. You are a partner in a partnership and the Schedule K-1 (Form 1065) you received shows the following.

• A passive activity loss of $4,125.

• A depreciation adjustment of $500 on post-1986 property.

• An adjustment of $225 on the disposition of property. Because the two adjustments above are from the passive activity and aren’t allowed for the AMT, you must first reduce the passive activity loss by those amounts. The result is a passive activity loss for the AMT of $3,400. You then enter this amount on the AMT Form 8582 and refigure the allowable passive activity loss for the AMT.

The amount of any AMT passive activity loss that

TIP isn’t deductible and is carried forward is likely to differ

from the regular tax amount, if any. Therefore, keep adequate records for both the AMT and regular tax.

Enter the difference between the amount that would be reported for the activity on Schedule C, E, or F or Form 4835, Farm Rental Income and Expenses, for the AMT and the regular tax amount. If (a) the AMT loss is more than the regular tax loss, (b) the AMT gain is less than the regular tax gain, or (c) you have an AMT loss and a regular tax gain, enter the adjustment as a negative amount.

Enter any adjustment for amounts reported on Form 8949, Schedule D, Form 4684, or Form 4797, for the activity on line 2k instead of line 2m. See the instructions for line 2k.

Publicly Traded Partnership (PTP)

If you had a loss from a PTP, refigure the loss using any AMT adjustments and preferences and any AMT prior year unallowed loss.

Tax Shelter Passive Farm Activities

Refigure any gain or loss from a tax shelter passive farm activity taking into account all AMT adjustments and preferences and any AMT prior year unallowed losses. If the amount is a gain, include it on the AMT Form 8582. If the amount is a loss, don’t include it on the AMT Form 8582. Carry the loss forward to 2026 to see if you have a gain or loss from tax shelter passive farm activities for 2026.

Insolvency

If at the end of the tax year your liabilities exceed the FMV of your assets, increase your passive activity loss allowed by that excess (but not by more than your total loss). See section 58(c)(1).

Line 2n—Loss Limitations

To avoid duplication, any AMT adjustment or tax