About TaxQuarters

TaxQuarters is an independent, free tool that answers one question well: as a self-employed person, what will I owe the IRS this year, and what should I send in each quarter? No account, no upsell, no "unlock your results."

Going independent means taxes nobody withholds for you and a 15.3% self-employment tax most people don't see coming. The big tax-software brands answer this behind a signup wall; this is the opposite — instant, transparent, and honest about its limits.

How it stays honest

• Every rate, bracket, and threshold is a published 2026 IRS or SSA figure.
• The engine is unit-tested, and it runs the same in your browser as in our tests.
• We say plainly what's out of scope (state tax, credits) rather than pretend it's a filed return.

How it's funded

TaxQuarters is free, supported by clearly-labeled advertising and Amazon affiliate links on genuinely-relevant tools. That keeps the calculator free and login-free.