Key takeaways
- Self-employed workers owe self-employment tax (15.3%) on top of regular federal and state income tax.
- Setting aside 25 to 35 percent of every payment you receive is a reliable way to avoid a tax bill surprise at year-end.
- The IRS expects quarterly estimated payments four times a year. Missing them triggers a penalty even if you pay in full by April.
- The 2025 standard deduction is $15,000 for single filers and $30,000 for married filing jointly.
- Deductions for business expenses lower your taxable income, which is why tracking every dollar you spend on your work matters.
If you recently went independent, or you've been freelancing for a few years and still feel uneasy around tax time, the single most useful thing you can do right now is build a tax savings habit. The question of how much to set aside for taxes when self-employed doesn't have one universal answer, but the mechanics are straightforward enough that you can get to a solid number quickly. This article walks through all three layers of the self-employment tax picture: self-employment tax, federal income tax, and state income tax, plus how quarterly payments work and which deductions can meaningfully reduce what you owe.
How do self-employment taxes work?
When you work as an employee, your employer splits the Social Security and Medicare tax burden with you. They pay half; you pay half. When you're self-employed, you pay both halves yourself. That combined rate is 15.3 percent: 12.4 percent for Social Security (on income up to $176,100 for 2025) and 2.9 percent for Medicare, with no income ceiling on the Medicare portion.
This is the self-employment tax. It applies to your net self-employment income before you apply income tax brackets. There is a small offset built in: the IRS lets you deduct half of your self-employment tax when calculating your adjusted gross income. That doesn't eliminate the cost, but it does reduce the income on which your regular income tax is calculated.
On top of self-employment tax, you owe federal income tax on all your taxable income, and depending on where you live, state income tax as well. State rates vary from zero (Texas, Florida, and a handful of others) up to around 13 percent in California. Check your state's department of revenue website for the current rate that applies to your income level.
How much should you set aside for taxes when self-employed?
The range that works for most independent workers is 25 to 35 percent of every payment you receive. Where you land within that range depends on your income level and your state. Here's how to think about it:
- Lower income, no state income tax: 25 percent is often enough. Self-employment tax alone accounts for roughly 14 percent (15.3% applied to 92.35% of net earnings, per how the IRS computes it), and a modest federal income tax rate on top of that keeps you under 25 percent in many cases.
- Middle income with state income tax: 30 percent is a more comfortable target. This covers self-employment tax, a 22 percent federal bracket, and a mid-range state rate.
- Higher income or high-tax state: 35 percent or more. Once you're into the 24 percent or 32 percent federal brackets and paying California or New York state rates, the combined burden climbs fast.
The practical move is to open a dedicated savings account and transfer that percentage immediately every time a client pays you. Treat it as money you've already spent. When quarterly payments are due, the money is there and you're not scrambling.
I know a lot of people skip this and plan to "figure it out" at tax time. That works until it doesn't. The first year you get a $6,000 surprise bill in April is usually the year you start taking the savings habit seriously.
Quarterly estimated taxes: what are they and when are they due?
The U.S. tax system is pay-as-you-go. Employees handle this automatically through payroll withholding. Self-employed workers do it manually by making four estimated tax payments each year directly to the IRS. Miss those payments and you owe a penalty, even if you send the full amount owed by April 15.
The 2025 quarterly due dates are:
| Payment period | Due date |
|---|---|
| January 1 to March 31 | April 15, 2025 |
| April 1 to May 31 | June 16, 2025 |
| June 1 to August 31 | September 15, 2025 |
| September 1 to December 31 | January 15, 2026 |
You can make payments through the IRS Direct Pay portal at irs.gov or by mailing Form 1040-ES with a check. The IRS also accepts payments via EFTPS (Electronic Federal Tax Payment System) if you want to schedule them in advance.
To calculate how much to send each quarter, the IRS offers two safe harbors. You avoid a penalty if you either pay at least 90 percent of your current year's tax liability, or pay 100 percent of what you owed the previous year (110 percent if your prior-year adjusted gross income exceeded $150,000). Most people starting out use the prior-year safe harbor because it's easier to calculate.
Federal income tax brackets for 2025
Federal income tax is progressive, meaning only the income within each bracket is taxed at that bracket's rate. Earning $60,000 doesn't mean all $60,000 is taxed at 22 percent. The first chunk is taxed at 10 percent, the next at 12 percent, and so on up the ladder.
2025 federal income tax brackets, single filers:
| Tax rate | Taxable income bracket | Tax owed |
|---|---|---|
| 10% | $0 to $11,925 | 10% of taxable income |
| 12% | $11,926 to $48,475 | $1,192.50 + 12% of the amount over $11,925 |
| 22% | $48,476 to $103,350 | $5,578.50 + 22% of the amount over $48,475 |
| 24% | $103,351 to $197,300 | $17,651.50 + 24% of the amount over $103,350 |
| 32% | $197,301 to $250,525 | $40,199.50 + 32% of the amount over $197,300 |
| 35% | $250,526 to $626,350 | $57,231.50 + 35% of the amount over $250,525 |
| 37% | $626,351 or more | $188,769.75 + 37% of the amount over $626,350 |
2025 federal income tax brackets, married filing jointly:
| Tax rate | Taxable income bracket | Tax owed |
|---|---|---|
| 10% | $0 to $23,850 | 10% of taxable income |
| 12% | $23,851 to $96,950 | $2,385 + 12% of the amount over $23,850 |
| 22% | $96,951 to $206,700 | $11,157 + 22% of the amount over $96,950 |
| 24% | $206,701 to $394,600 | $35,302 + 24% of the amount over $206,700 |
| 32% | $394,601 to $501,050 | $80,398 + 32% of the amount over $394,600 |
| 35% | $501,051 to $751,600 | $114,462 + 35% of the amount over $501,050 |
| 37% | $751,601 or more | $202,154.50 + 37% of the amount over $751,600 |
Source: IRS Rev. Proc. 2024-40 (tax year 2025 inflation adjustments).
Standard deduction vs. itemized deductions: which one should you use?
Every taxpayer gets to reduce their taxable income by the standard deduction, no receipts required. For 2025, those amounts are:
| Filing status | 2025 standard deduction |
|---|---|
| Single | $15,000 |
| Married, filing jointly | $30,000 |
| Married, filing separately | $15,000 |
| Head of household | $22,500 |
Source: IRS Rev. Proc. 2024-40.
Itemized deductions let you list specific qualifying expenses instead: mortgage interest, state and local taxes up to $10,000, charitable contributions, and certain medical expenses above a threshold. You use whichever method produces a larger deduction. For most people without a mortgage, the standard deduction wins. For homeowners in high-tax states with significant mortgage interest, itemizing often comes out ahead.
A few things worth thinking through before you decide:
- Record-keeping discipline: Itemizing requires documentation. If you don't have receipts and records for every claimed expense, the standard deduction is the cleaner and safer choice.
- Life changes matter: Buying a house, a large medical expense, or a significant charitable gift in a given year can tip the math toward itemizing. Re-evaluate each year rather than assuming one approach always wins.
- Tax law changes: Deduction rules do shift. The Tax Cuts and Jobs Act of 2017 roughly doubled the standard deduction and capped the state and local tax deduction at $10,000. Both provisions are currently scheduled to expire after 2025, which means the calculation may look different in future years.
What deductions lower your self-employment tax bill?
Self-employed workers can deduct a wide range of ordinary and necessary business expenses from their gross income before calculating their self-employment tax. This is different from, and in addition to, the standard or itemized deduction on your personal return. Common ones include:
- Home office: If you have a dedicated workspace in your home used exclusively for business, you can deduct a portion of your rent or mortgage interest, utilities, and internet proportional to the space's square footage relative to your total home square footage.
- Business use of a vehicle: Either the standard mileage rate (67 cents per mile for 2024; check IRS.gov for the 2025 rate when published) or actual vehicle expenses pro-rated for business use.
- Health insurance premiums: If you're not eligible for coverage through a spouse's employer plan, you can deduct 100 percent of health, dental, and qualifying long-term care insurance premiums paid for yourself and your family.
- Retirement contributions: Contributions to a SEP-IRA, Solo 401(k), or SIMPLE IRA reduce your taxable income, sometimes substantially.
- Software, subscriptions, and tools: Anything you pay for because it's required to do your work qualifies, from project management software to the internet connection in your home office (business-use portion).
- Professional services: Accountants, lawyers, and consultants you hire for your business are deductible.
- Half of self-employment tax: As mentioned earlier, the IRS allows you to deduct half the self-employment tax you pay as an adjustment to income. You don't need to itemize to claim this.
The reason tracking expenses matters so much as a self-employed person is that every legitimately deductible dollar reduces your taxable income, which reduces your income tax. It doesn't affect the self-employment tax calculation the same way (except for the half-SE-tax deduction), but over a full year the savings from consistent expense tracking add up significantly.
For a thorough breakdown of what qualifies, the small business tax deductions guide on this site covers more than 20 specific categories with examples.
Frequently asked questions
What percentage of self-employment income should I set aside for taxes?
Most self-employed workers should set aside 25 to 35 percent of every payment they receive. The lower end applies to lower-income earners in states with no income tax. The higher end applies to higher-income earners or those in states like California or New York with significant state income taxes. When in doubt, save 30 percent and adjust after your first full tax year.
Do I have to pay quarterly estimated taxes?
If you expect to owe $1,000 or more in federal taxes for the year after subtracting withholding and credits, the IRS generally requires quarterly estimated payments. Missing them results in an underpayment penalty even if you pay the full amount by April 15. Most self-employed people with meaningful income fall into this category.
What is the self-employment tax rate?
The self-employment tax rate is 15.3 percent: 12.4 percent for Social Security (on the first $176,100 of net self-employment income in 2025) and 2.9 percent for Medicare on all net self-employment income. An additional 0.9 percent Medicare surtax applies to income above $200,000 for single filers. You can deduct half the self-employment tax paid as an above-the-line deduction.
Can I deduct business expenses and also take the standard deduction?
Yes. Business expense deductions (reported on Schedule C) reduce your self-employment net income before you even get to your personal return. The standard deduction (or itemized deductions) then applies to your adjusted gross income. These are separate calculations. Taking the standard deduction does not prevent you from deducting legitimate business expenses on Schedule C.
What happens if I can't pay my estimated taxes on time?
The IRS charges an underpayment penalty calculated as an annualized interest rate on the amount you should have paid. The rate adjusts quarterly and has been in the 7 to 8 percent range in recent years. The penalty is not a flat fee; it's relatively small if the underpayment was modest and you were close to the safe harbor thresholds. Pay as much as you can by the deadline regardless.
Does state income tax affect how much I should save?
Yes, significantly. If you live in a state with no income tax (Texas, Florida, Nevada, Washington, South Dakota, Wyoming, or Alaska), your self-employment tax plus federal income tax alone determines your savings rate. If you live in a high-tax state, add several percentage points to your target. California's top marginal rate is 13.3 percent; New York's is 10.9 percent. Factor your state rate into the 25 to 35 percent range.
