Money

Money calculators

Each calculator runs the formula a government agency publishes, shows that formula next to your result, and links the official page with the date we last checked it. They run in your browser; nothing you type is stored.

These are estimates for planning, not advice for your situation. Before you act, confirm with the agency that decides (OPM, SSA or your lender) or a licensed professional.

Calculators

• FERS Supplement Calculator
  OPM's formula for the FERS annuity supplement, the months it is paid, and the earnings test year by year, including the July start and the special-provision MRA rule.
• IRMAA Calculator and SSA-44 Checker
  Your Medicare Part B and Part D income surcharge from the official CMS table, how close you are to each cliff, and whether a life-changing event on form SSA-44 fits.

How this site makes money: see the disclosure. The tools in this section have no lead forms and no affiliate links.