Guides

2027 Estimated Tax Due Dates (Projected)

Projected 2027 federal quarterly estimated tax due dates for self-employed people, based on the IRS 15th-of-the-month schedule and weekend/holiday rule.

The Estimated Tax Safe-Harbor Rule, Explained

How the 90% / 100% / 110% safe-harbor rules help self-employed people avoid the IRS underpayment penalty, with IRS sources.

Self-Employment Tax Explained (with 2026 figures)

What self-employment tax is, the 15.3% rate, the 92.35% rule, the Social Security wage base and the half-SE-tax deduction, with IRS and SSA sources.