2026 Schedule SE estimate
Self-employment tax calculator
Estimated SE tax
$12,010
2026 quarterly payment view
Estimated federal tax including self-employment tax is $21,510. After withholding and prior estimated payments, the remaining annual amount is $17,310.
Suggested quarterly payment: $4,328. Social Security wage base used by W-2 wages plus SE earnings: $78,498 of $184,500.
This is a planning estimate for regular self-employment tax and Additional Medicare Tax. It does not prepare Schedule SE, calculate income tax brackets, QBI, state tax, penalties, optional methods, clergy rules, farm adjustments, or every Form 8959 interaction.
Sources: IRS Publication 505 and SSA 2026 COLA fact sheet.