Tax forms 1040 and 1040-SR are nearly identical. The main advantage of using Form 1040-SR is that it has a larger type, making it easier to read if you're doing your taxes by hand. It also emphasizes some specific tax benefits for those over age 65, although these benefits are also included in Form 1040.

Form 1040-NR is often required for nonresident aliens who engaged in a trade or business in the United States or otherwise earned income from U.S. sources. A non-resident alien is somebody who is not American and lives abroad, but who earns taxable income in the U.S.

To qualify for the Tax Credit for Elderly or Disabled, you must be either at least 65 years old by the end of the tax year, or disabled, meaning you meet specific criteria like being permanently and totally disabled before retirement. If you qualify, you'll need to complete Schedule R.

Schedule R (Form 1040) is used by taxpayers to calculate the Credit for the Elderly or the Disabled. This credit is designed to provide tax relief for individuals who are either 65 years or older or permanently and totally disabled, and who meet certain income requirements.

Schedule R to claim a nonrefundable credit for the elderly or disabled. Taxpayers age 65 or older, or under age 65 and receiving disability income due to permanent and total disability, may be eligible for the credit.

Example 1. 1.Initial amount based on filing status (line 10)$5,000 2. Taxable disability pension (line 11) $15,000 3. Initial amount (smaller of line 1 or line 2) (line 12) $5,000 4. Nontaxable social security benefits (line 13c) 5. Excess adjusted gross income (line 17) ($15,100 − $7,500) ÷ 2 5 more rows

Before completing Schedule R, make sure you meet the eligibility criteria for the Credit for the Elderly or the Disabled. Generally, you must be 65 years of age or older, or under 65 and retired on permanent and total disability, and have taxable disability income.