Schedule B (Form 941) Calculator: Semiweekly Depositors Daily Tax Liability 2026

Q: How do foreign tax credits affect my U.S. tax?

Model on <a href="/calculator/1116.html" title="Form 1116">Form 1116</a>; corporations use <a href="/calculator/1118.html" title="Form 1118">Form 1118</a>.

Q: Where can I compare T-Bills vs savings?

See the <a href="/calculator/t-bill-calculator.html" title="T Bill Calculator">T-Bill Calculator</a>.

Last reviewed: October 17, 2025

Use the Form 941SB Tax Form Calculator Form 941SB as a stand alone tax form calculator to quickly calculate specific amounts for your 2026 941sb state tax return. Alternatively, you can use one of our Combined Federal and State Tax Estimators to quickly calculate your salary, tax, and take-home pay.

This Schedule B (Form 941) helper lets semiweekly depositors record daily federal employment tax liability for each day of the quarter. The tool auto-calculates monthly totals and the quarter total, which must match Form 941, line 12. Use it to validate your liability record before filing and avoid deposit penalties (including the $100,000 next-day rule under Publication 15).

How to use: Enter your tax liability (not deposits) for each pay date. Use $0.00 for non-pay days. Monthly totals compute automatically in the right column for each month; the quarter total is calculated at the end.

Schedule B (Form 941): Report of Tax Liability for Semiweekly Schedule Depositors
Use this schedule to show your TAX LIABILITY for the quarter; don't use it to show your deposits. Attach this to Form 941 if you're a semiweekly schedule depositor or became one because your accumulated tax liability on any day was $100,000 or more. Write your daily tax liability on the numbered space for the date wages were paid. See Section 11 in Pub. 15 for details.
Month 1
1	9	17	25	Tax liability for Month 1
2	10	18	26
3	11	19	27
4	12	20	28
5	13	21	29
6	14	22	30
7	15	23	31
8	16	24
Month 2
1	9	17	25	Tax liability for Month 2
2	10	18	26
3	11	19	27
4	12	20	28
5	13	21	29
6	14	22	30
7	15	23	31
8	16	24
Month 3
1	9	17	25	Tax liability for Month 3
2	10	18	26
3	11	19	27
4	12	20	28
5	13	21	29
6	14	22	30
7	15	23	31
8	16	24
Fill in your total liability for the quarter (Month 1 + Month 2 + Month 3) ▸ Total must equal line 12 on Form 941.				Total liability for the quarter

Accuracy check: The Total liability for the quarter must equal Form 941, line 12. If claiming the qualified small business R&D payroll tax credit on Form 941 line 11, ensure your Schedule B liabilities reflect that credit—do not reduce any day below zero.

Last reviewed: October 17, 2025: If you believe this form requires an update, please contact us.

Helpful references: Review Publication 15 for deposit schedules, the $100,000 next-day deposit rule, and semiweekly vs monthly depositor rules. If your accumulated tax liability hits $100,000 on any day, you become a semiweekly depositor immediately and must file Schedule B.

Frequently Asked Questions

Are federal and state tax years always the same?

Typically yes (calendar year), though processing and due dates may vary slightly by state.

How do foreign tax credits affect my U.S. tax?

Model on Form 1116; corporations use Form 1118.

Where can I compare T-Bills vs savings?

See the T-Bill Calculator.

Do I need to model pre-tax health premiums?

Yes—add them in the full calculator to reflect employer plan deductions.

How do pre-tax 401(k) vs Roth 401(k) affect take-home?

Pre-tax lowers current taxes (higher take-home now); Roth keeps take-home lower now but withdrawals can be tax-free.

Important Notes

All calculations are estimates for guidance only. Always review your return and consider professional advice when submitting official filings.