When you have a regular job, your employer withholds taxes from every paycheck and sends them to the IRS on your behalf. You file once a year, maybe get a refund, and move on.
When you freelance, none of that happens automatically. You receive the full amount your client pays. No withholding. No employer handling it. And if you wait until April to deal with all of it, the IRS will penalise you for not paying as you earned.
That's what quarterly estimated taxes are — the self-employed version of paycheck withholding. Here's how they work in 2026.
Why Quarterly Taxes Exist
The US tax system operates on a pay-as-you-go basis. The IRS expects to receive tax payments throughout the year, not in one lump sum after it's over.
For employees, this happens automatically through withholding. For freelancers, independent contractors, and anyone with significant 1099 income, you're responsible for making those payments yourself — four times a year.
Miss them, and you'll owe an underpayment penalty when you file your annual return. It's not a massive fine, but it's money you didn't need to spend.
The 2026 Quarterly Deadlines
The four payment deadlines for 2026 estimated taxes are:
- April 15, 2026 — Q1 (income earned January–March)
- June 16, 2026 — Q2 (income earned April–May)
- September 15, 2026 — Q3 (income earned June–August)
- January 15, 2027 — Q4 (income earned September–December)
Note that the periods aren't equal quarters — Q2 is only two months. This catches a lot of new freelancers off guard.
If a deadline falls on a weekend or federal holiday, it moves to the next business day.
What You're Actually Paying
As a self-employed freelancer, your tax bill has two components that most people conflate:
Self-employment (SE) tax. This covers your Social Security and Medicare contributions — the same things that are withheld from employee paychecks, except as a freelancer you pay both the employee and employer share.
The 2026 rate is 15.3%:
- 12.4% Social Security on the first $184,500 of net earnings
- 2.9% Medicare on all net earnings
- An additional 0.9% Medicare surtax on earnings over $200,000
You calculate SE tax on 92.35% of your net earnings (not the full amount — this accounts for the employer-equivalent deduction).
Federal income tax. On top of SE tax, you owe regular income tax on your net freelance income, at your marginal rate (10%, 12%, 22%, 24%, 32%, 35%, or 37% depending on your total taxable income).
The 2026 standard deduction is $15,750 for single filers and $31,500 for married filing jointly.
The mistake most new freelancers make: budgeting only for income tax and forgetting SE tax entirely. If you're in the 22% income tax bracket, your combined federal tax rate on freelance income is closer to 35–37% before state taxes.
How Much to Set Aside
A practical rule of thumb: set aside 30–35% of every payment you receive into a separate account. This covers federal income tax, SE tax, and leaves a small buffer.
If you're in a high-income-tax state (California, New York, New Jersey), bump that to 35–40%.
Do this immediately when payment lands. Don't leave it in your operating account — it doesn't feel like your money because it isn't.
How to Calculate Your Quarterly Payment
You have two options for calculating what to pay each quarter:
Option 1: Estimate your actual liability.
- Take your net freelance income for the quarter (revenue minus deductible expenses)
- Multiply by 92.35% to get your SE tax base
- Apply 15.3% to get your SE tax
- Add your estimated income tax based on your expected annual income
- Divide annual estimates by 4 and pay quarterly
Option 2: Use the safe harbor rule (simpler and safer).
The safe harbor rule protects you from underpayment penalties as long as you pay either:
- 90% of your current year's tax liability, OR
- 100% of your prior year's tax liability (110% if your prior year AGI exceeded $150,000)
Most freelancers with stable income use the prior-year method. Pull your total tax from last year's Form 1040 (line 24), divide by four, and pay that amount each quarter. If your income grows, you'll owe a bit extra in April — but no penalty.
What You Can Deduct
Your quarterly payments are based on net income — revenue minus legitimate business expenses. The more you can deduct, the lower your tax bill.
Common deductions for freelancers in 2026:
Home office. If you use part of your home exclusively for work, you can deduct either $5 per square foot (simplified method, up to 300 sq ft) or the actual proportional cost of your home expenses. This includes rent or mortgage interest, utilities, and internet.
Business software and tools. Subscriptions, apps, platforms — anything used for your work is deductible. This includes TAV, your design tools, project management software, and your professional website.
Equipment. Computers, monitors, cameras, and other business equipment. Under Section 179, you can deduct the full cost in the year of purchase rather than depreciating over time.
Health insurance premiums. If you pay your own health insurance, you can deduct 100% of the premiums from your adjusted gross income.
Retirement contributions. A Solo 401(k) or SEP-IRA lets you shelter significant income. For 2026, you can contribute up to $70,000 to a Solo 401(k) (combined employee and employer contributions). These contributions reduce your taxable income dollar for dollar.
Qualified Business Income (QBI) deduction. Now permanent under the One Big Beautiful Bill Act, eligible freelancers can deduct up to 20% of qualified business income. Phase-outs apply at higher income levels. This is worth understanding with a tax professional.
Professional fees. Your accountant, lawyer, and yes — business tools and platforms you use to run your freelance operation.
Vehicle. If you use your car for business, deduct either actual expenses or the standard mileage rate of $0.70 per mile for 2026.
The Forms You Need
Schedule C (Form 1040). This is where you report freelance income and deductible business expenses. Net profit from Schedule C flows to your main return.
Schedule SE. Calculates your self-employment tax based on your Schedule C net profit.
Form 1040-ES. The form for making quarterly estimated tax payments. You can pay online via IRS Direct Pay or EFTPS — no form submission required if paying electronically.
1099-NEC. If a US client paid you more than $600 in a calendar year, they're required to send you this form by January 31. You report the income regardless of whether you receive the form.
New for 2026: What Changed
QBI deduction is now permanent. The 20% Qualified Business Income deduction, previously set to expire, was made permanent by the One Big Beautiful Bill Act signed in 2025. If you haven't been claiming this, talk to a tax professional.
Social Security cap increased. The wage base for Social Security tax is $184,500 for 2026, up from $176,100 in 2025.
Standard deduction increased. $15,750 for single filers, $31,500 for joint filers.
Tip income deduction. New for 2025–2028: qualifying freelancers in tipped professions can deduct up to $25,000 in tip income from federal taxable income. Phase-outs begin at $150,000 AGI.
A Simple System
Quarterly taxes feel overwhelming until you have a system. Here's a simple one:
- Open a separate savings account labelled "taxes"
- Every time a client pays you, transfer 33% to that account immediately
- On each quarterly deadline, calculate what you owe and pay it from that account
- In January, work with your accountant on your annual return — you'll likely have money left over
The goal isn't to pay the exact right amount each quarter. The goal is to never be surprised.
TAV tracks your invoiced and received revenue across clients, giving you the financial visibility you need to estimate your quarterly payments accurately. No spreadsheet archaeology at the end of each quarter.