Freelance Taxes Calculator: What You’ll Owe in 2026
A freelance taxes calculator answers the question every self-employed person asks after their first good month: how much of this money is actually mine? When you freelance, nobody withholds tax from your pay. You owe self-employment tax on top of income tax, and the IRS expects you to pay it in four instalments rather than in one go in April.
This guide walks through the exact calculation step by step, with a fully worked example using 2026 figures. You can do it on paper, in a spreadsheet, or with a ready-made template. Either way, you’ll end up with a quarterly number you can trust.
Quick answer: A freelance taxes calculator takes your net profit (income minus business expenses), applies 15.3% self-employment tax to 92.35% of it, then adds federal income tax after the standard deduction, half of your SE tax and the QBI deduction. Most US freelancers end up owing 20–30% of profit, split across four quarterly payments.
How does a freelance taxes calculator work?
It stacks two separate taxes on your profit, not your revenue. The first is self-employment (SE) tax, which covers Social Security and Medicare. The second is ordinary federal income tax. State tax, if your state has one, comes on top.
Here are the inputs any reliable calculator needs:
- Gross freelance income – everything clients paid you, whether or not you got a 1099.
- Deductible business expenses – software, equipment, home office, business mileage, contractor fees.
- Filing status – single, married filing jointly, and so on. This sets your standard deduction and brackets.
- Other income – a W-2 salary or a partner’s income pushes your freelance profit into higher brackets.
- Payments already made – earlier quarterly payments and any W-2 withholding.
If your expense numbers are a mess, fix that first. Our guide to bookkeeping categories for small business shows which buckets to track so the deduction side of the calculation is accurate.
How do you calculate freelance taxes step by step?
You calculate them in six steps, in this order. The order matters, because each figure feeds the next.
Step 1: Find your net profit
Subtract deductible business expenses from gross freelance income. This is the figure that ends up on Schedule C. Every legitimate expense you log here cuts both your SE tax and your income tax, so it’s the highest-leverage number on the sheet.
Step 2: Calculate self-employment tax
Multiply net profit by 92.35%, then multiply the result by 15.3%. The 15.3% breaks down into 12.4% Social Security and 2.9% Medicare. In 2026, the 12.4% portion only applies up to the Social Security wage base of $184,500. The IRS explains the full rules on its self-employment tax page.
Step 3: Deduct half of your SE tax
You can subtract half of your SE tax from your income before you calculate income tax. This is an “above-the-line” deduction, so you get it even if you take the standard deduction.
Step 4: Subtract the standard deduction
For 2026, the standard deduction is $16,100 for single filers and $32,200 for married couples filing jointly. If you itemize instead, use your itemized total.
Step 5: Apply the QBI deduction
Most freelancers qualify for the qualified business income (QBI) deduction. It’s worth up to 20% of your business profit (after the SE tax adjustment), capped at 20% of your taxable income before QBI. High earners in certain service fields face extra limits, so check before you rely on it above roughly $200,000.
Step 6: Run taxable income through the brackets
Apply the 2026 federal brackets to what’s left. For a single filer, that’s 10% on the first $12,400 and 12% up to $50,400, with higher rates above that. Then add income tax and SE tax together. That total is your estimated federal bill for the year.
Freelance taxes calculator example: $80,000 profit
Let’s run real numbers. Say you’re a single freelance designer with $80,000 in net profit for 2026 and no other income.
- SE tax: $80,000 × 92.35% = $73,880. Then $73,880 × 15.3% = $11,304.
- Half of SE tax: $5,652, so adjusted gross income is $74,348.
- Standard deduction: $74,348 − $16,100 = $58,248.
- QBI deduction: 20% of $74,348 would be $14,870, but it’s capped at 20% of $58,248, which is $11,650. Taxable income becomes $46,598.
- Income tax: 10% of $12,400 ($1,240) plus 12% of $34,198 ($4,104) = $5,344.
- Total federal tax: $11,304 + $5,344 = $16,648.
That works out to about 20.8% of profit, or roughly $4,162 per quarter. Notice that SE tax is more than double the income tax here. That surprises almost every new freelancer, and it’s why a generic income tax calculator underestimates what you’ll owe.
If you live in a state with income tax, add it on top. In a state with a flat 5% tax, that’s roughly another $3,000 to $3,500 a year.
Which estimation method should you use?
There are four common ways to estimate what you owe. The right one depends on how steady your income is and how much effort you’re willing to put in each quarter.
| Method | How it works | Accuracy | Best for |
|---|---|---|---|
| Flat percentage rule | Set aside 25–30% of every payment | Low – often overshoots at lower incomes | Your first few months, as a cash buffer |
| Safe harbor (prior year) | Pay 100% of last year’s total tax in four equal parts (110% if AGI was over $150,000) | Penalty-proof, but not accurate for this year | Income that’s growing fast or very uneven |
| Full calculation (this guide) | Run the six steps on projected annual profit | High, if expenses are tracked | Most freelancers with steady clients |
| Annualized income method | Recalculate each quarter based only on income earned so far (Form 2210, Schedule AI) | Highest for lumpy income | Seasonal work or one big contract late in the year |
In practice, many freelancers combine two methods. They pay the safe harbor amount to stay clear of penalties, then run the full calculation in the fourth quarter to see how much extra to put aside for April.
When are quarterly estimated taxes due?
For the 2026 tax year, the four deadlines are April 15, 2026, June 15, 2026, September 15, 2026 and January 15, 2027. The quarters aren’t equal: the second “quarter” covers just two months.
You generally need to make estimated payments if you expect to owe $1,000 or more when you file. Miss them, and the IRS charges an underpayment penalty calculated like interest. You can pay through IRS Direct Pay or your online IRS account, and the official Form 1040-ES page includes a worksheet that follows the same logic as this guide.
Not sure how to report income that came without a 1099? Read our guide on how to file freelance taxes without a 1099. It covers the filing side, while this article covers the estimating side.
What mistakes make a freelance taxes calculator wrong?
Your result is only as good as the numbers you put in. These are the errors that come up most often:
- Using revenue instead of profit. Calculating on gross income can overstate your bill by thousands.
- Forgetting SE tax. Payroll-style calculators assume an employer pays half of Social Security and Medicare. As a freelancer, you pay both halves.
- Ignoring a day job. If you also earn a W-2 salary, your freelance profit lands in your top bracket, not the bottom one.
- Skipping mileage. At the IRS standard mileage rate, 3,000 business miles a year is a deduction worth well over $1,500.
- Calculating once and never again. One new retainer can move your estimate a lot. Re-run it every quarter.
How much should a freelancer set aside for taxes?
A safe starting point is 25–30% of every payment you receive, held in a separate savings account. Once you’ve run the full calculation, replace that guess with your real effective rate. In the example above, that rate was about 21% before state tax.
This number should also feed back into your pricing. If 25% of every invoice goes to tax, your rate has to cover it. Our free freelance rate calculator and the freelance day rate calculator guide show how to build tax into your rate from day one, so the tax bill never eats into the income you actually need.
The done-for-you shortcut: a ready-made freelance taxes calculator
You can rebuild all six steps in a spreadsheet yourself. It takes a few hours, though, and one wrong cell reference quietly breaks every quarter after it.
If you’d rather skip that, the Self-Employed Tax Calculator is a Google Sheets and Excel template with the formulas already built in. Enter your income and expenses, and it estimates SE tax, income tax and your quarterly payments, so you know what to send the IRS and what’s yours to spend.
If your bigger problem is that your rates don’t leave room for tax, pair it with the Freelance Rate Card Calculator. It turns your income goal (taxes included) into hourly, day and project rates, plus a branded rate card to send clients. Prefer to shop on Etsy? You can also grab our templates on the Growtoria Etsy shop.
Frequently asked questions
Is there a free freelance taxes calculator?
Yes. The IRS Form 1040-ES worksheet is free and follows the official method, though you fill it in by hand. A spreadsheet that follows the six steps above does the same job faster and lets you re-run it every quarter in seconds.
What percentage do freelancers pay in taxes?
Most US freelancers pay 20–30% of net profit in combined federal self-employment and income tax, plus state tax where it applies. The 15.3% SE tax is the fixed part. Income tax varies with your bracket, filing status and other income.
Do I pay self-employment tax if I earn under $400?
No. If your net earnings from self-employment are under $400 for the year, you don’t owe SE tax. You may still owe income tax on that profit, and you still have to report it.
What happens if I underpay my quarterly estimated taxes?
The IRS charges an underpayment penalty based on how much you underpaid and for how long, at the federal short-term rate plus 3%. You can avoid it by paying at least 90% of this year’s tax or 100% of last year’s (110% if your AGI was over $150,000).
Does this calculation work outside the US?
The structure does: profit minus allowances, then social contributions plus income tax. The rates and rules are country-specific, though. UK freelancers, for example, pay Class 4 National Insurance and make payments on account instead of quarterly estimates, so use HMRC’s figures for your numbers.
Run your numbers this week
Don’t wait until January to find out what you owe. Pull your year-to-date profit, run the six steps, and compare the result with what you’ve already paid. Whatever the gap is, that’s your next quarterly payment, and it’ll likely be smaller than the panic number in your head.
Want the shortcut? Start with the Self-Employed Tax Calculator and have your 2026 estimate ready in about ten minutes.
