Employer’s QUARTERLY Federal Tax Return

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Use the Form 941SS Tax Form Calculator Form 941SS as a stand alone tax form calculator to quickly calculate specific amounts for your 2026 941ss 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.

Form 941-SS is the Employer’s QUARTERLY Federal Tax Return used by employers in the U.S. territories—American Samoa, Guam, the Commonwealth of the Northern Mariana Islands (CNMI), and the U.S. Virgin Islands. Unlike the standard Form 941, Form 941-SS does not report federal income tax withholding; it focuses on Social Security and Medicare taxes (including Additional Medicare Tax), adjustments, credits, and deposits. This page provides an interactive worksheet that mirrors the IRS form so you can key values and see totals instantly.

Use this tool to compute quarterly totals, check the deposit schedule, and reconcile balance due (line 14) or overpayment (line 15). For research credit claims (Form 8974), enter the amount on line 11 to reduce total taxes accordingly.

Who should file Form 941-SS?

• Employers in American Samoa, Guam, CNMI, or the U.S. Virgin Islands with wages subject to Social Security/Medicare taxes.
• Territorial employers that need to reconcile quarterly tax liability and deposits and provide a monthly or semiweekly liability record.

How to complete the form (quick overview)

• Lines 5a–5d: Enter taxable wages/tips and the worksheet auto-applies the correct rates to Column 2.
• Line 6: Total taxes before adjustments = line 5e + line 5f (unreported tips tax).
• Lines 7–9: Adjustments for fractions of cents, sick pay, tips & group-term life insurance.
• Lines 10–12: Totals after adjustments and any qualified small business R&D payroll tax credit (Form 8974).
• Lines 13–15: Compare deposits to total tax to determine balance due or overpayment, then choose whether to apply it forward or request a refund.
• Part 2 (Line 16): Provide your deposit schedule and monthly tax liability. Monthly total must equal line 12; semiweekly depositors attach Schedule B (Form 941).

Note: Lines 2–3 are intentionally blank on this worksheet because Form 941-SS does not include federal income tax withholding fields.

Pre-filing quality checks

1. Does line 5e equal the sum of Column 2 amounts for lines 5a–5d?
2. Does line 10 equal line 6 plus lines 7–9?
3. Is line 12 (after credits) correctly computed as line 10 minus line 11?
4. Do line 14 or line 15 reconcile to deposits (line 13) without sign errors?
5. For monthly depositors, does the line 16 month-by-month total match line 12?

Common territory-specific topics

• Additional Medicare Tax: Withhold 0.9% on covered wages over the threshold; report in line 5d Column 2 via the built-in rate.
• Section 3121(q): If the IRS issues a Notice and Demand for unreported tips, include the tax due on line 5f.
• Research Credit: If claiming the qualified small business payroll tax credit on Form 8974, enter it on line 11 to reduce line 12.

Related schedules and forms: Semiweekly depositors must attach Schedule B (Form 941). If you amend a prior quarter, file Form 941-X. Aggregate filers should use Schedule R (Form 941) to allocate amounts to client EINs. For detailed rules, see Publication 80 (Circular SS).

Important Notes

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