Tools · SE tax calculator
Self-employment tax calculator for your net business income
Self-employment tax surprises a lot of new business owners. On top of regular income tax, you owe roughly 15.3 percent for Social Security and Medicare on your net self-employment income, the share an employer would otherwise split with you. If you have never had to budget for it, the number can be jarring, and underestimating it can lead to a penalty.
Box 1 of your W-2. Leave blank if you have none.
Box 2 of your W-2. This is what decides your refund.
Net profit after business expenses.
+ Other income and itemized deductions
Interest, dividends, unemployment.
Leave blank to use the standard deduction.
Your federal estimate
Enter your wages and the federal tax withheld, then calculate. Everything runs in your browser.
- Adjusted gross income
- QBI deduction (20%)
- Taxable income
- Income tax
- Self-employment tax
- Child Tax Credit
- Total federal tax
- You already paid
- Effective tax rate
Ready to file it for real?
TaxFile reads your actual W-2s and 1099s, finds the deductions you qualify for, and prepares your federal and state return. You review and approve before anything is filed.
Federal estimate for tax year 2025, not tax advice. Covers wages, self-employment income, the standard or itemized deduction, and the Child Tax Credit. It does not include state tax, the Earned Income Tax Credit, education or energy credits, or capital gains rates. Your filed return may differ. Runs in your browser, nothing is uploaded.
TaxFile gives you a self-employment tax calculator that takes your net business income and figures the Social Security and Medicare portion, including the deduction for the employer-equivalent half. It shows the result in plain terms so you can plan ahead. When you file, the same figures roll into a complete return with your Schedule C and deductions, e-filed through an authorized IRS e-file provider after you review and approve. Estimates are for planning and not tax advice. For complex situations, consult a CPA or tax professional.
You review before filing
Bank-level encryption
Why it works
What you get with se tax calculator
The 15.3 percent share
The calculator figures the Social Security and Medicare tax on your net self-employment income, the share that has no employer to split it with you.
Accounts for the deduction
It factors in the deduction for the employer-equivalent half of self-employment tax, so the estimate reflects how it actually affects your return.
Rolls into your return
When you file, the figures carry into a full return with Schedule C and deductions, prepared and e-filed after you review and approve.
What it handles
Prepared, checked and ready to review
TaxFile reads your W-2s, 1099s and receipts, classifies your income, finds the deductions and credits you qualify for, runs an error and audit-risk check, and assembles a return you review and approve before filing.
- Calculates Social Security and Medicare tax on net income
- Factors in the employer-equivalent half deduction
- Shows the result in plain, plannable terms
- Carries figures into a complete prepared return
- E-files through an authorized IRS e-file provider after approval
Why TaxFile
One place to prepare, check and file your return
Not a 90-screen interview, not an expensive preparer, and not bare DIY forms. Upload or chat, find your deductions, run the error check, and review before filing, all in one place.
Reads your documents
Upload your W-2s, 1099s and receipts or just answer a few questions. TaxFile reads everything, classifies your income, and fills the forms, so you skip the long interview the old software puts you through.
Finds your deductions
Built for 1099 and Schedule C income, TaxFile surfaces the write-offs and credits you qualify for, each with the dollar amount and a plain-English reason, so you claim what is yours.
Checks before you file
An automated error, consistency and audit-risk check runs over your whole return. You review every figure and approve it, and it is e-filed through an authorized IRS e-file provider only when you say so.
From estimate to filed return
An estimate is a number. The return is the work. Here is TaxFile reading the documents, finding the deductions, and building the return you approve.
Filing status
Form 1099-NEC
Nonemployee compensation
Pre-loaded sample. TaxFile reads it the same way it reads your real documents.
This is sample data so you can see exactly how TaxFile reads a document. Your real W-2s, 1099s and receipts stay encrypted and are never sold.
Prepare a preview to watch TaxFile read your income, scan 200+ deductions and credits, run the error check, and assemble a review-ready return.
Estimated federal refund
Estimate, not your final returnin deductions and credits found ·
Deductions and credits we found
Preview only. Review every figure before filing.
Live preview · estimate only · no signup needed
Estimate only · not tax advice · you review before filing · authorized IRS e-file
Good questions
Questions about se tax calculator
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Upload your documents or answer a few questions and TaxFile prepares your return, finds what you can claim, and checks it for errors. You review and approve before anything is filed.
Not tax advice · you review before filing · e-file via an authorized IRS e-file provider