This is the nonresident alien's return. Income effectively connected with a U.S. trade or business is on its lines; interest, dividends, royalties, prizes and other income not effectively connected come on your Forms 1042-S and are taxed on Schedule NEC, worked out from them. Social Security benefits on an SSA-1042S, a partnership's Form 8805, Schedule E and Schedule A (Form 1040-NR) are worked out from what you type; a nonresident takes no earned income credit, education credit or standard deduction here (India's treaty aside), and a document the return cannot carry holds it with the sentence that says why.
Is this return new, or does it change one you already filed?
An amended return is your whole return again, every line as it should have been, with Form 1040-X showing what changed (Instructions for Form 1040-X). You fill it in here exactly as you would a new return; the next page takes the return as you filed it.
Form 1040-X is filed electronically for a Form 1040, 1040-SR or 1040-NR; a separate one for each year amended. In general a joint return cannot be changed to married filing separately after the due date. An amended return is generally filed within 3 years after the original return was filed or within 2 years after the tax was paid, whichever is later; processing takes up to 16 weeks. A Form 1040-X in response to an IRS notice is filed on paper, to the address in the notice (Instructions for Form 1040-X, Rev. December 2025).
What is your filing status?
This files a 2025 Form 1040-NR, the nonresident alien's federal return — an original, or, as chosen above, an amended or superseding one with Form 1040-X. A nonresident files as single, married filing separately or a qualifying surviving spouse; a joint return and head of household are not available.