When are quarterly estimated tax payments due in 2026 for gig workers?

For calendar-year gig workers and freelancers, federal quarterly estimated tax payments in 2026 are due on four dates: 15/04/2026 (Q1), 15/06/2026 (Q2), 15/09/2026 (Q3), and 15/01/2027 (Q4). These are the IRS Form 1040-ES due dates for the four payment periods. If a deadline lands on a weekend or legal holiday, the payment is on time if made the next business day.

You generally must make estimated payments if you expect to owe $1,000 or more in tax for the year after subtracting withholding and refundable credits, per the IRS estimated-tax rules. For self-employed contractors and rideshare or creative freelancers — who rarely have an employer withholding tax — this threshold is easy to cross, so most gig workers earning a steady 1099 income pay quarterly. A 2026 self-employed tax guide from TaxRise confirms you must pay quarterly if you expect to owe $1,000 or more after withholding and refundable credits.

Why gig workers owe estimated tax

Unlike W-2 employees, independent contractors receive 1099 income with no tax withheld. On top of regular income tax, you owe self-employment tax of 15.3% — 12.4% for Social Security and 2.9% for Medicare — on your net earnings, as the IRS explains. Paychex notes that self-employment tax kicks in once your net earnings reach $400, which is why setting aside roughly 25–30% of gross income each quarter is a common rule of thumb.

The safe-harbor rule

To avoid an underpayment penalty, the IRS Form 1040-ES lets you pay the smaller of two amounts across the year: 90% of your 2026 tax, or 100% of your 2025 tax shown on last year's return. If your 2025 adjusted gross income was over $150,000 ($75,000 if married filing separately), that prior-year figure rises to 110%. As Keeper summarizes, paying 100% (or 110%) of last year's total tax is the cleanest way to stay penalty-proof even if your income climbs mid-year. You also avoid penalties entirely if you owe less than $1,000 after withholding and credits.

How to pay

Make payments electronically through IRS Direct Pay or the Electronic Federal Tax Payment System (EFTPS), or mail a check with a Form 1040-ES voucher. You don't have to make the final 15/01/2027 payment if you file your full 2026 return and pay the balance by 02/02/2027.

If you want help mapping these deadlines to your own income, see our quarterly tax calculator and the freelancer guide to quarterly estimated taxes. To understand the 15.3% rate driving these payments, read about the 2026 self-employment tax rate.

Sources

• IRS — When to Pay Estimated Tax (Form 1040-ES periods)
• IRS — Estimated Tax FAQs
• IRS — 2026 Form 1040-ES
• IRS — Self-Employment Tax (Social Security and Medicare)
• Paychex — Quarterly & Estimated Tax Payments
• Keeper — Safe Harbor Rule for Estimated Taxes
• TaxRise — 2026 Estimated Tax Payment Guide for Self-Employed Workers