Quarterly Estimated Tax Calculator 2026

For freelancers, contractors & 1099 workers: estimate your self-employment tax + federal income tax and see exactly what to pay each quarter — with 2026 IRS deadlines.

Your Income

Expected 2026 net self-employment income ($)

Profit after business expenses (Schedule C)

Other income (W-2 wages, etc.) ($)

Filing status

Your Quarterly Payments

Enter your details and click Calculate.

2026 deadlines: Q1 — Apr 15, 2026 | Q2 — Jun 15, 2026 | Q3 — Sep 15, 2026 | Q4 — Jan 15, 2027. Pay online at IRS Direct Pay. Safe harbor: pay 100% of last year's tax (110% if AGI > $150K) to avoid underpayment penalties.