If you’re self-employed, set aside 25 to 30 percent of every payment you receive to cover federal income tax, self-employment tax, and state income tax. Push that closer to 35 percent if you’re a high earner or live in a state with steep income tax rates. The exact figure inside that range depends on your bracket, your filing status, your state, and the deductions you plan to claim.
That percentage has to stretch across three separate tax bills, and understanding each one is what lets you land on the right number for your situation rather than guessing.
The Three Taxes Your Savings Have to Cover
The reason a single W-2 employee can get away without thinking about this is that their employer handles most of it in the background. When you work for yourself, all of it lands on you at once.
Self-Employment Tax
Self-employment tax is 15.3 percent: 12.4 percent for Social Security and 2.9 percent for Medicare. An employee splits this with their employer; you pay both halves.1Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes)
Two adjustments soften that headline rate. First, the tax applies to only 92.35 percent of your net earnings, not the full amount, which brings the effective rate to roughly 14.1 percent.2Internal Revenue Service. Topic No. 554, Self-Employment Tax Second, you can deduct half of your self-employment tax when calculating adjusted gross income. That deduction lowers your income tax; it does not reduce the self-employment tax itself.1Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes)
The 12.4-percent Social Security portion only applies to net earnings up to $184,500 in 2026.3Social Security Administration. 2026 Cost-of-Living Adjustment (COLA) Fact Sheet Earnings above that cap still owe the 2.9-percent Medicare portion. If your self-employment income tops $200,000 as a single filer or $250,000 as a married couple filing jointly, an additional 0.9-percent Medicare tax kicks in on the excess.4Internal Revenue Service. Questions and Answers for the Additional Medicare Tax
Federal Income Tax
Federal income tax runs on brackets, but the number that matters for your savings rate is your effective rate, not your top bracket. Your marginal rate is what the last dollar gets taxed at; your effective rate is the blended average across everything you earned. A single filer with $80,000 of taxable income sits in the 22-percent bracket, but the effective federal rate is closer to 14 percent because the lower portions of that income were taxed at 10 and 12 percent.
Before any of that math runs, you subtract the standard deduction: $16,100 for single filers in 2026, $32,200 for married couples filing jointly, and $24,150 for heads of household.5Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026 People who skip this step and set their savings rate off their marginal bracket often overshoot.
State Income Tax
Most states add their own income tax on top. Rates go from zero in about eight states with no income tax to over 13 percent at the top end elsewhere. Some states use a flat rate; others use progressive brackets like the federal system. Look up your state’s rate and add it into your savings percentage. This is the piece that most often pushes someone from 25 percent to 30 or beyond.
What 25 to 30 Percent Actually Buys You
Working through a concrete case makes the range less abstract. Take a single filer with $80,000 in net self-employment income who lives in a state with a 5-percent flat income tax:
- Self-employment tax: $80,000 × 92.35% × 15.3% comes to roughly $11,300.
- Half of that self-employment tax, roughly $5,650, is deductible from taxable income.
- Federal taxable income: $80,000 minus the $16,100 standard deduction minus the $5,650 half-SE deduction leaves about $58,250.
- Federal income tax on that: roughly $7,500, an effective rate near 9.4 percent.
- State income tax at 5 percent: roughly $4,000.
- Total: about $22,800, or 28.5 percent of gross earnings.
That is why 25 to 30 percent is the working range for most self-employed people. It lands the total tax bill without leaving a large shortfall or a large surplus.
When to Aim for 35 Percent
Move to the top of the range, or past it, if any of the following describe you: your income puts a meaningful share of earnings in the 32-percent federal bracket or higher, your state income tax rate is well above average, or your self-employment income crosses the $200,000 (single) or $250,000 (joint) threshold where the additional Medicare tax starts.4Internal Revenue Service. Questions and Answers for the Additional Medicare Tax Setting aside 35 percent builds a buffer against underpayment penalties, which the IRS charges at a 7-percent annual rate on any shortfall.6Internal Revenue Service. Quarterly Interest Rates
How to Actually Hold the Money
Pick a percentage, then move that share of every payment into a separate account the moment the client deposit clears. On a $1,000 payment at 30 percent, $300 goes to the tax account and $700 stays for business and personal use. Doing this per deposit is what prevents the April surprise.
A separate high-yield savings account works well. Automate the transfer so the tax money never sits in your operating account long enough to feel like income. The interest the account earns is itself taxable in the year you can access it, so include it in next year’s planning.7Internal Revenue Service. Topic No. 403, Interest Received
Quarterly Estimated Payments
You don’t get to hold the money until April. If you expect to owe $1,000 or more in federal tax for the year, the IRS requires quarterly estimated payments. For the 2026 tax year, the deadlines are:8Taxpayer Advocate Service. Making Estimated Payments
- First quarter: April 15, 2026
- Second quarter: June 15, 2026
- Third quarter: September 15, 2026
- Fourth quarter: January 15, 2027
Each payment should cover roughly a quarter of your total expected annual liability, income tax and self-employment tax together. Use Form 1040-ES to calculate the amount, and pay through IRS Direct Pay, EFTPS, the IRS2Go app, or a mailed voucher.9Internal Revenue Service. Estimated Taxes The IRS also allows more frequent payments as long as enough is paid by each quarterly deadline.
The Safe Harbor Rules That Protect You From Penalties
You avoid the underpayment penalty entirely if you meet any one of these tests:
- You owe less than $1,000 in total federal tax after subtracting withholding and credits.
- Your estimated payments and withholding cover at least 90 percent of the tax on your current-year return.
- Your payments equal at least 100 percent of the total tax on your prior-year return. If your prior-year adjusted gross income exceeded $150,000 ($75,000 if married filing separately), the threshold rises to 110 percent.10Internal Revenue Service. Underpayment of Estimated Tax by Individuals Penalty
The prior-year rule is the useful one when your income swings. It gives you a fixed target no matter what the current year does. Meeting it protects you from penalties even if your actual bill turns out higher. You will still owe the balance at filing time; you just won’t owe a penalty on top of it.
Deductions Lower the Percentage You Need
Every dollar of legitimate business expense you deduct reduces your net earnings before both income tax and self-employment tax are calculated. That is why tracking deductions has an outsized effect on how much you actually owe. Common ones include:
- Vehicle expenses at the 2026 standard mileage rate of 72.5 cents per mile for business use.11Internal Revenue Service. 2026 Standard Mileage Rates
- Home office costs, either as a portion of rent, utilities, and insurance, or through the simplified method at $5 per square foot up to 300 square feet.
- Health insurance premiums for yourself and your family.
- Equipment and supplies used for the business.
- Fees paid to accountants, attorneys, and business consultants.
A freelancer who grosses $100,000 but has $20,000 in legitimate business expenses only pays self-employment tax on the $80,000 of net earnings (technically 92.35 percent of it) and only pays income tax on that reduced figure minus the standard deduction. Cutting net earnings by a few thousand dollars lowers both taxes at once. Track expenses in real time; reconstructing them at year-end is where deductions get lost.