Step 1 of 6 · The return being corrected
Correct a Form 941 you already filed. Each line takes the corrected total (column 1), what you originally reported (column 2), and the difference (column 3); the tax lines also take the tax that difference produces (column 4).
Filing a quarter for the first time? That is Form 941.
Starts on today. Type it any way you like — 4/3/2026 and 20260403 both work.