Free retirement tax calculators

Simple calculators built on the 2026 IRS and Medicare numbers. No sign-up needed. Each one explains how it works and lists its sources.

• Roth conversion tax calculator →See the extra federal tax on a conversion in 2026 and how much you can convert before the next bracket.
• RMD calculator →Find your required minimum distribution, your RMD age, and how much your RMDs could grow.
• 2026 IRMAA brackets and checker →See the 2026 Medicare premium for your income and how much room you have before the next surcharge.