How accurate is this US take-home pay calculator?

This calculator provides estimates based on 2026 federal tax brackets, FICA payroll tax rates, and estimated state income tax rates. Actual paycheck amounts may vary depending on deductions, credits, benefits, and employer-specific withholdings.

Does this paycheck calculator include Social Security and Medicare?

Yes. The calculator includes FICA payroll taxes, which consist of Social Security and Medicare contributions, to estimate your net pay accurately.

Does this calculator include 401(k) or health insurance deductions?

No. Retirement contributions, health insurance premiums, and other voluntary pre-tax benefits are not automatically included unless entered manually.

Can I compare take-home pay between different states?

Yes. Because state income taxes vary widely, this calculator allows you to compare net income estimates across different U.S. states.

W2 Box 12 Codes 2026: The Ultimate Guide to New OBBB Act Changes

Finding strange letter codes in Box 12 of your 2026 W2 form? You aren’t alone. With the full implementation of the One Big Beautiful Bill (OBBB) Act, the IRS has introduced brand new reporting codes that directly impact your tax-free income and take-home pay.

The 2026 “Big Three” New Codes

The OBBB Act introduced these specific codes to track your new tax deductions. If you see these on your W2, your refund might be significantly higher this year:

Code TA: Employer contributions to your “Trump Account” (tax-advantaged savings).
Code TP: Your total qualified tips (eligible for the 2026 “No Tax on Tips” deduction).
Code TT: Your total qualified overtime compensation (eligible for the new overtime deduction).

Full W2 Box 12 Code Reference (2026)

Use this table to identify what each letter on your W2 means. Note that some codes are Informational Only, while others directly reduce your taxable income.

Code	Definition	Impact on Take-Home Pay
D	401(k) Contributions	Reduces Tax Decreases current taxable income.
DD	Cost of Employer Health Plan	Info Only Does not affect your taxes.
TP	Qualified Tips (OBBB Act)	BIG IMPACT Deductible on Schedule 1-A in 2026.
TT	Qualified Overtime	NEW Premium pay that may be federal tax-exempt.
W	HSA Contributions	Reduces Tax Employer & employee HSA deposits.
AA	Roth 401(k)	After-Tax No immediate tax break, grows tax-free.
C	Life Insurance > $50k	Taxable Small increase to your taxable wages.

Does your W2 look different than your last paycheck?

Use our updated 2026 calculator to see how your Box 12 codes and the OBBB Act changes affect your real-world take-home pay.

Run 2026 Paycheck Calculator →

Why the New Box 14b Matters for Tipped Workers

For the first time in 2026, the W2 has been split to include Box 14b. This box contains a 3-digit “Treasury Tipped Occupation Code.” If your employer uses Code TP in Box 12, they must provide the occupation code in Box 14b for you to claim the “No Tax on Tips” deduction.

Common 2026 Occupation Codes include:

Beverage & Food Service: Waitstaff and bartenders.
Personal Services: Hair stylists and wellness professionals.
Transportation: Delivery drivers and rideshare workers.

How to Use Box 12 to Increase Your Refund

When you file your 2026 taxes, ensure you (or your tax software) transfer the amounts from TP and TT to the new Schedule 1-A. This is where the OBBB Act deductions are officially calculated. Missing these codes could mean leaving thousands of dollars on the table.

Troubleshooting Tip: If your W2 is missing a code you expected (like your 401k contributions under Code D), do not try to “fix” it on your tax return. You must request a W2-C (Corrected W2) from your employer to ensure the IRS records match your filing.

Last Updated: March 2026. This guide reflects the finalized IRS General Instructions for Forms W-2 and W-3 for the 2026 tax year.