2025 Form 1040 Instructions: Guide to Filing Your 2025 Taxes 2025 Form 1040 Instructions - Filing your 2025 Form 1040 (U.S. Individual Income Tax Return) is essential for millions of U.S. taxpayers. What Does S125 on Your W-2 Mean? Section 125 Plans and Your Tax Savings What Does S125 on Your W-2 Mean? If you opened your 2025 W-2 form this tax season and spotted “S125,” « Previous 1 … 40 41 42