Free Agent FinanceCategory
Free financial tools for freelancers
Calculators, quick-reference tables, and software comparisons — the practical layer underneath every guide on this Site.
Self-Employment & Quarterly Tax Calculator
Estimate your SE tax, federal tax, and quarterly payment live.
InteractiveFreelance Hourly Rate Calculator
Work backward from a take-home pay goal.
InteractiveLLC vs S-Corp Savings Estimator
See potential tax savings from an S-Corp election.
InteractiveTake-Home Pay Calculator
See what a 1099 contract really nets you.
InteractiveQuarterly Payment Voucher Calculator
Split your annual total into four vouchers.
InteractiveRetirement Contribution Calculator
Compare SEP IRA vs Solo 401(k) limits.
GuideIncome Tracker Template Guide
What a good income tracker should include.
ReviewsSoftware Reviews
Independent comparisons of accounting and invoicing tools.
CuratedOfficial Resources
Direct links to IRS, SBA, and Healthcare.gov tools.
Quick reference
2026 quarterly estimated tax due dates
Save this table — these are the four payment deadlines the IRS uses for the standard calendar-year quarterly schedule.
| Payment period | Income earned | Due date |
|---|---|---|
| Q1 | Jan 1 – Mar 31 | April 15, 2026 |
| Q2 | Apr 1 – May 31 | June 15, 2026 |
| Q3 | Jun 1 – Aug 31 | September 15, 2026 |
| Q4 | Sep 1 – Dec 31 | January 15, 2027 |
Dates shift slightly if they land on a weekend or federal holiday. See the full Quarterly Estimated Taxes Guide for how to calculate each payment.