IRS Publication 559 — Survivors, Executors, and Administrators
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Taxes other than income tax that may be owed on the final return of a decedent include self -employment tax and alternative minimum tax, which are reported on Form 1040 or 1040-SR.
Self-employment tax. Self-employment tax may be owed on the final return if either of the following applied to the decedent in the year of death.
1. Net earnings from self-employment (excluding income described in (2)) were $400 or more.
2. Wages from services performed as a church employee were $108.28 or more. Alternative minimum tax (AMT). The tax laws give special treatment to certain types of income and allow special deductions and credits for certain types of expenses. The AMT was enacted so taxpayers who benefit from these laws still pay at least a minimum amount of tax. In general, the AMT is the excess of the tentative minimum tax over the regular tax shown on the return.
Form 6251. Use Form 6251, Alternative Minimum Tax—Individuals, to determine if this tax applies to the decedent. See the form instructions for information on when you must attach Form 6251 to Form 1040 or 1040-SR. Form 8801. If the decedent paid AMT in a previous year or had a credit carryforward, the decedent may be eligible for a minimum tax credit. See Form 8801, Credit for Prior Year Minimum Tax—Individuals, Estates, and Trusts.
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