TaxFacetTaxFacet

Iowa Self-Employment Tax Calculator (2025)

Calculate your self-employment tax in Iowa including federal SE tax (15.3%), federal income tax, Iowa state tax, and quarterly estimated payments.

$
$

Total Tax

$21,489

26.86%

Effective Rate

SE Tax

$11,304

Federal Income Tax

$7,971

IA State Tax

$2,215

Quarterly Estimate

$5,373

Summary

On $80,000 of net self-employment income in Iowa, your total tax is $21,489 (26.86% effective rate), including $11,304 in SE tax, $7,971 in federal income tax, and $2,215 in Iowa state tax. Quarterly estimate: $5,373.

Iowa adds $2,215 in state income tax (2.77% effective rate) on top of your federal tax obligations, bringing your total tax to $21,489.

Your net SE income of $80,000 is multiplied by 92.35% to get $73,880 in SE taxable earnings. This factor accounts for the employer-equivalent portion of FICA.

The 15.3% SE tax rate includes 12.4% for Social Security and 2.9% for Medicare. Your total SE tax is $11,304, and you can deduct $5,652 (half) from your gross income.

Your estimated quarterly payment is $5,373, due in April, June, September, and January. Missing payments may result in underpayment penalties.

Income Tax: $7,971
SS Tax: $9,161

SE Tax Calculation Journey

12 rows

StepAmount
Net SE Income$80,000
SE Income (92.35%)$73,880
Social Security Tax$9,161
Medicare Tax$2,143
Total SE Tax$11,304
Deductible Half$5,652
AGI$74,348
Taxable Income$59,348
Federal Income Tax$7,971
Iowa Income Tax$2,215
Total Tax$21,489
Quarterly Estimate$5,373

Estimated federal and Iowa self-employment tax. Does not include QBI deduction, local taxes, or tax credits. Quarterly estimate assumes equal payments. Not tax advice.

Related Calculators

Iowa State Income TaxIowa PaycheckIowa Capital Gains TaxIowa Bonus TaxIowa Retirement Income TaxIowa Sales Tax