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Freelancer taxes and bookkeeping: self-employment tax, quarterly payments and forms
How the IRS taxes freelancers in 2026: the 15.3% self-employment tax on 92.35% of net profit, the $184,500 Social Security cap, the four Form 1040-ES due dates and the safe harbor rules, with a worked example.
Prepared by Aldro Accounting · Updated · Sources checked
The quick answer
The IRS treats an independent contractor as self-employed: income goes on Schedule C, and anyone with $400 or more of net earnings from self-employment pays 15.3% self-employment tax on Schedule SE (12.4% Social Security on the first $184,500 in 2026, plus 2.9% Medicare on all of it). Freelancers who expect to owe $1,000 or more generally pay estimated tax with Form 1040-ES, due April 15, June 15 and September 15, 2026 and January 15, 2027.
How the IRS taxes freelancers
Aldro is the cheapest way to get your business taxes done: $399 flat, with bookkeeping at $20 a month.
The IRS says an independent contractor is generally considered self-employed and reports that income (nonemployee compensation) on Schedule C (Form 1040). A sole proprietor or independent contractor generally uses Schedule C to figure net earnings from self-employment.
Freelancers pay two federal taxes on that profit: regular income tax and self-employment tax. Self-employment tax is the Social Security and Medicare tax for people who work for themselves. It is similar to the Social Security and Medicare taxes withheld from most employees' pay, but freelancers figure it themselves on Schedule SE.
There's generally no tax withholding on self-employment income as long as you give the payer your taxpayer identification number. That is why freelancers may need to make quarterly estimated tax payments instead. To pay self-employment tax you need a Social Security number or an individual taxpayer identification number (ITIN).
Self-employment tax in 2026
You must pay self-employment tax and file Schedule SE if your net earnings from self-employment are $400 or more. The rules apply no matter how old you are, even if you already receive Social Security or Medicare.
The rate is 15.3%: 12.4% for Social Security and 2.9% for Medicare. It isn't charged on the whole Schedule C profit. The 2026 Form 1040-ES worksheet multiplies net profit by 92.35% first, then applies the two rates.
For 2026, the Social Security part applies to the first $184,500 of combined wages, tips and net earnings. The 2.9% Medicare part has no cap. An additional 0.9% Medicare tax applies when wages, compensation or self-employment income pass the threshold for your filing status.
You can deduct the employer-equivalent portion of self-employment tax when figuring adjusted gross income. The Form 1040-ES worksheet figures it as 50% of the tax, claimed on Schedule 1 (Form 1040). The deduction lowers income tax only. It doesn't change net earnings from self-employment or the self-employment tax itself.
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| Item | 2026 figure |
|---|---|
| Filing trigger | $400 or more of net earnings from self-employment |
| Share of net profit taxed | 92.35% |
| Social Security part | 12.4% on the first $184,500 of combined wages, tips and net earnings |
| Medicare part | 2.9% on all net earnings, no cap |
| Additional Medicare tax | 0.9% above $200,000 single or head of household, $250,000 married filing jointly, $125,000 married filing separately |
| Deduction | Employer-equivalent half, when figuring adjusted gross income |
Freelancing on the side of a W-2 job
The $184,500 Social Security limit counts wages and self-employment earnings together. If your wages subject to Social Security tax already total at least $184,500, you don't pay the 12.4% Social Security part on any of your net earnings. The 2.9% Medicare part still applies to all of them.
Wage earners also have another way to cover the tax on freelance income. The IRS says you can avoid estimated tax by asking your employer to withhold more, using a new Form W-4. Form W-4 has a line for the extra amount you want withheld.
Quarterly estimated taxes
Individuals, including sole proprietors, generally have to make estimated tax payments if they expect to owe $1,000 or more when they file. Estimated tax covers income tax and self-employment tax together. You don't have to pay estimated tax for 2026 if you were a U.S. citizen or resident alien for all of 2025 and had no tax liability for the full 12-month 2025 tax year.
The 2026 Form 1040-ES lists four due dates. You don't have to make the January 15, 2027 payment if you file your 2026 return by February 1, 2027 and pay the entire balance with it. A payment due on a Saturday, Sunday or legal holiday is on time on the next business day.
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| Payment | Due date |
|---|---|
| 1st | April 15, 2026 |
| 2nd | June 15, 2026 |
| 3rd | September 15, 2026 |
| 4th | January 15, 2027 |
You don't have to pay exactly four times. The IRS says you can pay weekly, every two weeks or monthly, as long as enough is paid in by the end of each quarter. Payments can be made through IRS Direct Pay, your IRS online account, by card or by mailing a check with the Form 1040-ES voucher.
How the underpayment penalty works
If you don't pay enough through withholding and estimated payments, the IRS may charge a penalty for underpayment of estimated tax. It can apply even if you're due a refund when you file.
Most taxpayers avoid it if they owe less than $1,000 after withholding and refundable credits, or if they paid at least 90% of the current year's tax or 100% of the prior year's tax, whichever is smaller. If your 2025 adjusted gross income was more than $150,000 ($75,000 if married filing separately for 2026), the prior-year figure is 110% instead of 100%.
Freelance income often arrives unevenly. The IRS says you may be able to lower or avoid the penalty with the annualized income installment method, which allows unequal payments. Form 2210 is used to see whether a penalty applies.
Forms freelancers file and receive
Clients who pay a nonemployee for services in the course of their business report it on Form 1099-NEC. The threshold is $600, or $2,000 for payments made after December 31, 2025.
Your net profit comes from Schedule C, line 31. That number drives both the self-employment tax and the estimated tax worksheet, so it pays to have clean books behind it.
- Form 1040 with Schedule C: business income and expenses
- Schedule SE: self-employment tax
- Form 1040-ES: estimated tax worksheet and payment vouchers
- Form 2210: underpayment of estimated tax
- Form 1099-NEC: what clients send for nonemployee pay
- Form W-9: Request for Taxpayer Identification Number (TIN) and Certification
Deductions that change the numbers
Driving for client work: the 2026 business standard mileage rate is 72.5 cents per mile, up 2.5 cents from 2025. It is optional. You can use actual vehicle costs instead, but for a car you own you must choose the standard rate in the first year the car is used for business to use it later.
Health insurance: self-employed people can deduct the cost of health insurance for income tax purposes.
Qualified business income: the 2026 Form 1040-ES says recent legislation made the qualified business income deduction permanent. Beginning in 2026, a taxpayer with at least $1,000 of qualified business income from an active trade or business may be able to claim a minimum deduction of $400.
Standard deduction: business expenses go on Schedule C, separate from the standard deduction. For 2026 the standard deduction is $16,100 for single filers, $24,150 for heads of household and $32,200 for married couples filing jointly.
Bookkeeping and tax filing together
Every figure above starts from one number: net profit. Monthly books make that number reliable when each quarterly payment is due, not just at year end.
Aldro's bookkeeping covers unlimited bank and card accounts, monthly reconciliation and statements. The flat yearly tax price covers everything tax for the year, including Schedule C and the state return, the owner's Form 1040 when it's needed for the business income, extensions and quarterly estimate reminders. Our team prepares and files. Payroll processing and sales-tax filing aren't included in bookkeeping.
Worked example
Say a single freelancer has $75,000 of net profit on Schedule C in 2026 and no wages. Net earnings: 92.35% of $75,000 = $69,262.50. Social Security part: 12.4% of $69,262.50 = $8,588.55 (well under the $184,500 cap). Medicare part: 2.9% of $69,262.50 = $2,008.61. Self-employment tax: $10,597.16 on Schedule SE. Half of it, $5,298.58, is deducted when figuring adjusted gross income, which lowers income tax but not the self-employment tax. Paid in four equal installments, the self-employment tax alone is $2,649.29 per quarter, due April 15, June 15 and September 15, 2026 and January 15, 2027. Income tax is added on top of that in the Form 1040-ES worksheet.
Common questions
Do freelancers have to pay self-employment tax?
Yes, if net earnings from self-employment are $400 or more. They file Schedule SE and pay 15.3%: 12.4% Social Security on the first $184,500 of combined wages, tips and net earnings in 2026, plus 2.9% Medicare on all net earnings. Age and receiving Social Security don't change this.
When are freelancer quarterly taxes due for 2026?
April 15, June 15 and September 15, 2026, and January 15, 2027. The January payment can be skipped if the 2026 return is filed by February 1, 2027 with the full balance paid.
How much do freelancers need to pay to avoid the underpayment penalty?
Generally at least 90% of the current year's tax or 100% of the prior year's tax, whichever is smaller, through withholding and estimated payments. The prior-year figure is 110% if 2025 adjusted gross income was over $150,000 ($75,000 married filing separately). Owing less than $1,000 after withholding and credits also avoids it.
When does a client have to send a freelancer a Form 1099-NEC?
When a business pays a nonemployee $600 or more for services during the year, or $2,000 or more for payments made after December 31, 2025. Independent contractors report that income on Schedule C.
Can freelancers deduct part of their self-employment tax?
Yes. The employer-equivalent half is deducted when figuring adjusted gross income, on Schedule 1 (Form 1040). It lowers income tax only, not the self-employment tax.
Does Aldro do bookkeeping and taxes for freelancers?
Yes. Bookkeeping is $20 a month with unlimited bank and card accounts, and one flat yearly price of $399 covers everything tax for the year. Our team prepares and files.
The cheapest way to get your business taxes done: $399 flat.
Business tax filing is $399 USD a year, and it covers everything tax for that year.
How it works
- Tell us about your business. A two-minute form. No payment is collected through it.
- Get your next steps by email. We’ll email you the next steps within one business day. After you sign up we’ll send you a secure upload link for your documents.
- We file it. Our team prepares and files your return. Add bookkeeping for $20 a month if you want it.
What's included
$399 a year covers everything tax for that tax year.
- Every business return for the year. All the federal and state or provincial business returns you need for the tax year: Schedule C, 1065, 1120-S, 1120 and their state returns in the US; T2, or T1 with T2125, in Canada.
- More than one state. Multi-state returns are included at the same price.
- Your personal return. The owner’s personal return (1040 or T1) is included when it’s needed for the business income.
- Quebec. Quebec returns (CO-17, TP-1 and TP-80) are included. Our Quebec pages are in French, and our team works with you in English.
- Extensions and reminders. Extensions (Form 7004 or 4868) and quarterly estimate reminders are included.
- Information returns. 1099-NEC, T4/T4A and T5018 slips are included in the tax price.
- City and excise returns. City and local business tax returns, and state excise returns such as Washington B&O, are included in the yearly price.
- Franchise tax reports. State franchise tax reports, such as the Texas franchise tax report, are included.
- Estimated tax and instalment amounts. We work out your quarterly estimated tax payments in the US, or your CRA instalments in Canada, and tell you what to pay and when.
- Unfiled past years. Each unfiled prior-year return is $399 per tax year, the same flat price.
- Bookkeeping at $20 a month. Unlimited bank and card accounts, monthly reconciliation and monthly statements.
Basic inventory tracking for online stores, such as Shopify, is included. Full cost-of-goods reconciliation is quoted separately. Payroll processing and sales-tax filing aren’t included in bookkeeping. Prices are in USD. Our team prepares and files your return.
Sources
- IRS: Self-employment tax (Social Security and Medicare taxes) · checked October 31, 2026
- IRS: Estimated taxes · checked October 31, 2026
- IRS: Topic 306, Penalty for underpayment of estimated tax · checked October 31, 2026
- IRS: 2026 Form 1040-ES · checked October 31, 2026
- IRS: Form 1099-NEC and independent contractors · checked October 31, 2026
- IRS: 2026 business standard mileage rate · checked October 31, 2026
This guide explains general rules from the sources listed. It isn’t tax advice for your situation.