Quarterly Estimated Taxes 2026: Due Dates, How to Pay & How Much You Owe
- Quarterly estimated taxes are how the self-employed prepay income tax and self-employment tax on income that has no withholding — in four payments a year using Form 1040-ES.
- 2026 due dates: April 15, June 15, September 15, and January 15, 2027. The next one is September 15, 2026.
- You must pay if you'll owe $1,000+ and aren't covered by withholding — freelancers, 1099 contractors, sole proprietors, single-member LLCs, and S-corp shareholders.
- Set aside roughly 25–30% of your income to cover the 15.3% self-employment tax plus federal income tax.
- Safe harbor: pay 100% of last year's tax (110% if you earned over $150,000) and the IRS can't penalize you.
- Miss a payment and you get an underpayment penalty — even if you pay your full bill in April.
When you work a regular job, tax is taken out of every paycheck automatically. When you work for yourself, nobody does that for you — so the IRS asks you to do it yourself, four times a year. Get it wrong and you're hit with penalties even if you pay your full bill in April. Here's exactly how the system works, in plain English.
What are quarterly estimated taxes?
Estimated taxes are how you pay income tax and self-employment tax on money that has no withholding — self-employment income, freelance and gig work, business profit, rental income, dividends, and capital gains. Instead of one lump sum next April, you prepay in four installments across the year using Form 1040-ES.
2026 quarterly due dates
| Quarter | Income earned | Payment due |
|---|---|---|
| Q1 | Jan 1 – Mar 31, 2026 | April 15, 2026 |
| Q2 | Apr 1 – May 31, 2026 | June 15, 2026 |
| Q3 ← next | Jun 1 – Aug 31, 2026 | September 15, 2026 |
| Q4 | Sep 1 – Dec 31, 2026 | January 15, 2027 |
Notice the "quarters" aren't even three-month blocks — the IRS periods are lopsided, which trips people up every year. When a due date lands on a weekend or holiday, it rolls to the next business day.
Who has to pay estimated taxes?
You generally must pay quarterly if both are true:
- You expect to owe $1,000 or more in federal tax for the year after subtracting withholding and credits, and
- Your withholding won't cover at least 90% of this year's tax (or 100% of last year's)
In practice that means freelancers, independent contractors, gig workers, sole proprietors, single-member LLC owners, partners, and S-corp shareholders — anyone earning money the IRS doesn't tax at the source. If you also have a W-2 job, you can sometimes increase that withholding instead of paying quarterly.
How much should you actually pay?
This is where most people either overpay and hurt their cash flow, or underpay and get penalized. Your quarterly payment needs to cover two taxes:
- Self-employment tax — 15.3% (12.4% Social Security + 2.9% Medicare) on your net self-employment profit
- Federal income tax at your normal bracket, on top of that
Say you're a freelancer expecting $60,000 of net profit this year. A rough breakdown:
- Self-employment tax ≈ $8,480 (roughly 15.3% of 92.35% of profit)
- Federal income tax ≈ $5,000–$6,000 depending on deductions
- Total ≈ $14,000/year → about $3,500 per quarter
Illustration only — your real number depends on deductions, credits, state tax, and filing status. The point: set aside roughly 25–30% of every payment you receive and you'll rarely be caught short.
💡 The safe-harbor shortcut: if you simply pay 100% of last year's total tax (110% if your income was over $150,000), split into four, the IRS cannot penalize you — even if you end up owing more. It's the easiest way to stay penalty-proof when this year's income is unpredictable.
How to pay the IRS (and how fast each way is)
| Method | Notes |
|---|---|
| IRS Direct Pay | Free, straight from your bank account — the easiest option |
| IRS Online Account | Free; also shows your payment history and balance |
| EFTPS | Free; best if you want to schedule all four in advance |
| Debit / credit card | Works instantly, but the processor charges a fee |
| Check by mail + 1040-ES voucher | Allow several days; use the correct quarter's voucher |
💡 Tip: pay online and you skip the voucher entirely — just select "estimated tax" and the correct tax year. Keep the confirmation number; it's your proof the payment landed on time.
What happens if you miss a payment or underpay?
The IRS charges an underpayment penalty, calculated like interest on the amount you were short, for each day it stays unpaid — currently running at a rate that makes it far more expensive than a savings account. Crucially, this applies even if you pay your whole tax bill in April: the penalty is for not paying on time throughout the year, not for the final total.
⚠️ Missed an earlier quarter? Don't wait for the next due date — pay as soon as you can. The penalty accrues daily, so a payment made today costs less than the same payment made in September.
Stop guessing every quarter
The hard part isn't paying — it's knowing the right number so you don't overpay (and starve your cash flow) or underpay (and get penalized). That's exactly what a dedicated accountant does: calculates each quarter from your real income, keeps you inside the safe harbor, and reminds you before every deadline.
Frequently asked questions
When are 2026 estimated taxes due?
April 15, 2026 (Q1), June 15, 2026 (Q2), September 15, 2026 (Q3), and January 15, 2027 (Q4). The next deadline is September 15, 2026.
How do I pay estimated taxes online?
The simplest way is IRS Direct Pay or your IRS Online Account — both are free and pull straight from your bank. Choose "estimated tax," pick tax year 2026, and save the confirmation number.
How much should I set aside for quarterly taxes?
A safe rule of thumb is 25–30% of your net self-employment income, covering both the 15.3% self-employment tax and federal income tax. Your exact rate depends on your bracket, deductions, and state.
What if I don't know exactly what I'll earn this year?
Use the safe harbor: pay 100% of last year's total tax (110% if your income was over $150,000) in four installments and the IRS can't penalize you, regardless of what you actually earn.
Do single-member LLCs pay quarterly estimated taxes?
Yes. A single-member LLC is taxed as a sole proprietor by default, so the owner pays estimated taxes personally on the business profit, just like any self-employed individual.
FincSol Accountancy handles US taxes end-to-end for freelancers, 1099 contractors, LLCs, and e-commerce sellers — we calculate each quarterly payment from your real numbers, keep you penalty-proof, and remind you before every deadline. Dedicated personal accountant. No long-term contract.
Message us on WhatsApp →Related reading: Filing a US tax extension in 2026. Official IRS guidance on estimated taxes is at irs.gov.