2026 Quarterly Tax Deadlines: When to Pay and How Much

The 2026 Deadlines

| Quarter | Period | Deadline | |---------|--------|----------| | Q1 | January 1–March 31 | April 15, 2026 | | Q2 | April 1–June 30 | June 16, 2026 | | Q3 | July 1–September 30 | September 15, 2026 | | Q4 | October 1–December 31 | January 15, 2027 |

Notice that Q2 and Q3 are one day later than usual (June 16 instead of June 15, September 15 instead of September 14) because the normal dates fall on weekends in 2026.

Pro tip: Set these four dates in your calendar right now as recurring annual reminders.

Do You Actually Have to Pay Quarterly?

You owe quarterly estimated taxes if:

1. Your expected tax liability is $1,000 or more for the year after any W-2 withholding from your employer 2. You have self-employment income, freelance income, rental income, or investment income that isn't subject to withholding 3. You expect to owe more in taxes than your employer withholds (if you have a W-2 job)

You don't need to pay quarterly if: - You have a W-2 job and your employer withholds enough federal and state tax to cover your total liability - Your total expected tax is under $1,000 - You have no self-employment or passive income

How to Calculate Your Quarterly Amount

Formula.

Quarterly Payment = (Total Expected Annual Tax – Expected W-2 Withholding) ÷ 4

If you don't know your exact tax, estimate it. Here's a quick method:

1. Estimate your total 2026 income (W-2, freelance, rental, etc.) 2. Estimate deductions (home office, equipment, business expenses, mortgage interest, standard deduction, etc.) 3. Calculate your taxable income: (Total Income – Deductions) 4. Estimate your tax: Use a tax calculator or rough brackets (rough average: 25–35% for self-employed) 5. Subtract W-2 withholding: (Estimated Tax – W-2 Withholding) = Amount to pay in quarterly estimates 6. Divide by 4: That's your quarterly amount

Example: Freelancer + W-2 Job.

Scenario: $80K W-2 job + $35K freelance income, single, California - W-2 withholding: ~$12,000 (employer deducts automatically) - Freelance earnings: $35,000 - Self-employment tax on $35K: ~$4,900 - Federal income tax on combined $115K: ~$11,500 - California state tax: ~$4,200 - Total estimated tax: ~$20,600 - Less W-2 withholding: –$12,000 - Quarterly estimate needed: $8,600 - Per quarter: $8,600 ÷ 4 = $2,150/quarter

Refine this using our free quarterly tax calculator for your exact state and situation.

How to Pay Quarterly Taxes

Option 1: IRS Direct Pay (Easiest & Free).

1. Go to IRS Direct Pay 2. Log in with your SSN or taxpayer ID 3. Select the tax year (2026) 4. Select 'Estimated Tax' as the reason 5. When paying, select 'Estimated Tax' as the reason and form '1040-ES' as the form type 6. Choose the correct tax period (2026) 7. Enter your payment amount 8. Choose your payment method: - ACH from bank account (recommended, instant deduction) - Debit or credit card (charges a small fee, instant) 9. Submit and save your confirmation number

Confirmation is instant. You'll see "Payment Confirmed" and get a reference number. You're done.

Option 2: EFTPS (Electronic Federal Tax Payment System).

Free but requires advance registration (1–2 weeks). Good if you're paying multiple times per year and want an automated system.

1. Register at EFTPS.gov 2. Schedule payments online or by phone 3. Payments must be scheduled at least one business day in advance

Option 3: Check or Money Order (Slow).

Write a check payable to "United States Treasury" and mail to your IRS district office. Include a voucher (Form 1040-ES) with: - Your name, address, SSN - Tax year (2026) - Amount enclosed - "2026 Estimated Tax"

Takes 2–3 weeks to process. Not recommended unless you have a specific reason.

Option 4: Credit Card (Expensive).

You can pay via Visa, Mastercard, or American Express through third-party processors (PayPal, Square, etc.). They charge a 1.87%–2.35% convenience fee.

Example: A $2,000 quarterly payment costs ~$37–$47 extra in fees. Not worth it unless you're getting credit card rewards.

The Safe Harbor Rule: How to Avoid Penalties

The IRS gives you flexibility on the exact amount:

Pay 100% of your prior year's total tax liability (or 110% if your AGI exceeds $150K / $75K if MFS) and you won't owe an underpayment penalty — even if your 2026 tax is higher.

Example: You owed $18,000 total in 2025. If you pay $18,000 in total quarterly payments for 2026 (by April 15, 2026), the IRS won't penalize you, even if you actually owe $21,000 in 2026.

This is your safety net if your income is unpredictable.

Important: If your adjusted gross income exceeded $150,000 in 2025 ($75,000 if Married Filing Separately), the prior-year safe harbor threshold is 110% of last year's tax, not 100%. This is defined in IRS Publication 505.

Example: Owed $18,000 in 2025, AGI was $175,000 → pay $18,000 × 110% = $19,800 in 2026 quarterly estimates to be safe.

What Happens If You Miss a Deadline?

Small Miss (Pay a Few Days Late).

No problem. The IRS charges underpayment interest at approximately 8% annually. A $2,000 payment made 5 days late costs about $2 in interest.

Larger Miss (Pay a Few Months Late).

Interest accrues. A $3,000 Q1 payment made in August (7 months late) costs ~$140 in interest. Still not catastrophic, but avoidable.

Entire Year Missed.

You'll owe interest on all four quarters, typically $300–$600 depending on your total liability. Not an audit trigger, but costs real money. Pay as soon as you realize the miss.

Payment Failure (Inability to Pay).

If you can't pay by the deadline, pay something — anything — rather than nothing. The IRS sees effort and is more lenient. You can also set up an installment agreement afterward to pay over time (with interest, but avoids additional penalties).

Income Changes Mid-Year? Adjust Your Estimate

Your quarterly estimate should be a good-faith projection of your 2026 income. If circumstances change dramatically, recalculate:

- Got a raise or new freelance client? Increase your quarterly payment. - Lost a client or reduced hours? Decrease it or make up the difference with a larger Q4 payment. - Started a second job? Recalculate combined withholding.

The IRS doesn't require you to file an amended estimate (Form 1040-ES), but adjusting proactively prevents surprises at tax time.

Common Mistakes

Mistake 1: Guessing Instead of Calculating.

"I'll just pay $1,500/quarter and hope it's right." If you owe $2,500/quarter, you'll owe penalty interest. If you owe $1,000/quarter, you've over-saved $2,000.

Use a calculator. Takes 2 minutes.

Mistake 2: Confusing Estimated Taxes With Annual Taxes.

Estimated taxes are quarterly payments of tax you expect to owe. Your annual tax return (Form 1040) is due April 15 and shows your actual liability. Don't conflate the two.

Mistake 3: Thinking Estimates Lock You In.

Estimates are projections, not contracts. If your income changes, your estimate should change. File your annual return showing your actual tax, and you'll reconcile with your quarterly payments.

Mistake 4: Waiting Until April 15 to Pay Everything.

You can't make up for three missed quarters by paying one large check in April. The IRS cares about timing, not averaging. Pay by each deadline or face interest charges.

Mistake 5: Not Adjusting for W-2 Withholding.

If you work a W-2 job and freelance, don't ignore the W-2 withholding. It reduces what you owe quarterly. Calculate: (Total Tax – W-2 Withheld) ÷ 4.

What About State Quarterly Taxes?

Most states require estimated taxes if you owe $500+ in state tax. State deadlines usually match federal (April 15, June 15, September 15, January 15).

Check your state's tax authority website for specifics: - California Franchise Tax Board: ftb.ca.gov - New York Department of Taxation: tax.ny.gov - Texas Comptroller: comptroller.texas.gov - (And so on for your state)

Some states let you pay combined federal + state on one EFTPS payment. Others require separate payments. Your state's website has instructions.

2026 vs. Other Years: What's Different?

2026 is relatively straightforward: - Standard deductions increase slightly (not finalized until late 2025) - No major tax law changes expected (TCJA provisions extended through 2025) - Quarterly deadlines follow the normal pattern (except June 16 instead of June 15)

Check back in January 2026 for any updates.

Key Takeaways

- 2026 quarterly deadlines: April 15, June 16, September 15, January 15 (2027) - You owe quarterly taxes if your expected tax liability is $1,000+ after withholding - Calculate: (Total Expected Tax – W-2 Withholding) ÷ 4 = your quarterly payment - Pay via IRS Direct Pay using form 1040-ES — free, instant confirmation - Safe harbor: pay 100% of last year's tax (110% if AGI > $150K) to avoid penalties - Missed a deadline? Pay immediately — the penalty is ~8% annual interest, not a flat fine - Use our free calculator to get your exact quarterly amount