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Payroll Deduction Calculator with 457 Contributions

Enter this paycheck

2026 tax rules and 457(b) limits

$

Before any deductions.

A percent or a dollar amount, as chosen.

$/ check

Medical, dental, vision, HSA or FSA.

%
More options
$/ check

Pre-tax deferral to a second plan, if you have one.

$/ check

Union dues, Roth deferrals, garnishments.

$/ check

Expense or mileage money added to net pay.

$/ check

W-4 Step 4(c).

$

Before this paycheck. Used for the wage base.

Your paycheck with the 457(b) deferral

Net pay this paycheck

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457(b) deferral this paycheck

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Taxes this paycheck

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Federal taxable wages (W-2 box 1 basis)–
Social Security and Medicare wages–
Net pay without the 457(b) deferral–
Net pay given up for the deferral–
Income tax the deferral saves this paycheck–
Federal tax bracket–
457(b) deferrals over a full year–

Pay stub

This paycheck and a full year at the same pay. Federal income tax is the estimated 2026 tax on a full year of these wages, spread evenly; your employer’s withholding may differ a little. The full-year column ignores wages earned before this paycheck.

LineThis paycheckFull year

Results are estimates for educational purposes and are not financial, tax or legal advice.

Lay out one paycheck line by line, with your 457(b) deferral next to your other deductions and taxes, and see how much tax the deferral saves. The 401k calculator uses the same plain-English approach, so you can compare results side by side.