-CALCULATORS-
Get clear answers to Medicare and Social Security questions — fast
These simple calculators help you understand important Medicare and Social Security rules, including enrollment windows, penalties, and income-related costs. They’re designed to give you quick clarity so you can make confident decisions, without confusion or pressure.
Why Medicare Enrollment Mistakes Are So Costly
Medicare has strict enrollment windows. Miss the wrong one and you may pay a Penalty on your monthly Premium for the rest of your life, not just for a year, but permanently. The Part B late enrollment penalty adds 10% to your premium for every full year you were eligible but didn’t enroll. The Part D penalty adds 1% per month. There’s no annual cap on what Original Medicare leaves you to pay out of pocket either.
These calculators exist because the rules aren’t obvious — and the consequences of guessing wrong are permanent. Use them to find your exact dates, estimate any penalties, and understand your income-related costs before you make a decision.
Medicare Calculators
Initial Enrollment Calculator
Not sure when you’re allowed to enroll?
This calculator shows your exact 7-month Medicare Initial Enrollment Period so you don’t miss it.
Medigap Enrollment Calculator
Find out when you can enroll without medical questions.
This calculates if you’re in your Open Enrollment Period- when you can enroll in Medigap without health questions.
Medicare IRMAA Calculator
High income? You may pay more for Medicare.
See whether IRMAA applies to you — and how much extra you may pay for Part B and Part D.
Part B Penalty Calculator
Missed your Part B sign-up window?
See whether a penalty applies and how it may increase your Part B premium for life.
Part D Penalty Calculator
Did you skip Prescription Drug Coverage?
Find out if a Part D penalty applies — and how much it could cost you each month.
Social Security Calculators
Social Security Full Retirement Age (FRA) Calculator
When do you qualify for full Social Security benefits?
Instantly calculate your Full Retirement Age (FRA) for Social Security benefits.
Social Security Earnings Limit Calculator
Working while taking Social Security?
This calculator will show how much you can earn before benefits are reduced.
Frequently Asked Questions
Which calculator should I use first?
Start with the Initial Enrollment Calculator if you’re approaching 65 — it gives you your enrollment window dates, which affect every other decision. If you’re past 65 and unsure whether you missed a deadline, go straight to the Part B or Part D Penalty Calculators.
Do these calculators save my information?
No. All calculations happen in your browser and nothing is stored or shared.
What if my situation involves an employer plan or COBRA?
The enrollment calculators account for Special Enrollment Period scenarios, but employer plan situations can be complex. If you’re unsure, schedule a free call with a REMEDIGAP advisor — we can walk through your specific dates.