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Medicare Advantage vs Medigap Cost Calculator

Compare Medicare Advantage and Medigap annual costs before reviewing plan networks, drug coverage, and enrollment rules.

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Lower estimated cost option

Medicare Advantage

Advantage annual cost

$2,990

Medigap annual cost

$3,690

Advantage cost advantage

$700

Extra annual Medigap + Part D premium

$2,100

How the math works

The calculator adds annual premiums, expected medical out-of-pocket spending, and expected drug costs for each Medicare path.

Medicare Advantage networks, prior authorization, supplemental benefits, Medigap underwriting rules, and Part D formularies can outweigh a simple annual cost estimate.

Editorial noteMaintained by EveryCalc - Reviewed June 2026

EveryCalc calculators are designed for fast, practical estimates with transparent inputs and no required account. We use plain formulas, visible assumptions, and related tools so visitors can check the result from more than one angle.

Results are informational only. For financial, tax, legal, medical, construction, or other high-impact decisions, verify the output against primary sources or a qualified professional.

Learn more about our review process on the EveryCalc methodology page.

How this calculator works

What this page estimates

This Medicare Advantage vs Medigap Cost Calculator is built to give a quick, browser-based estimate for medicare advantage vs medigap cost. Compare Medicare Advantage and Medigap annual costs before reviewing plan networks, drug coverage, and enrollment rules. The inputs stay on the page during normal use, and the result should be treated as an estimate for planning, comparison, or education rather than professional advice.

Calculation approach

The calculator applies the standard relationship implied by the inputs, then formats the answer so it can be checked and reused. For finance tools, the most important step is using consistent units, rates, time periods, and assumptions before comparing the result with another calculator or outside quote.

Example workflow

For example, start with a realistic value you already know, change one input at a time, and watch how the answer moves. That makes it easier to tell whether the result is being driven by the main amount, the rate, the time period, or a unit conversion.

Practical checks

  • Use current, real-world numbers when the result affects money, health, tax, or legal decisions.
  • Run a low, base, and high case when the inputs are estimates.
  • Check the related calculators below when the next decision depends on a different assumption.

How to interpret the medicare advantage vs medigap cost result

Best use

Use the result as a planning number for comparing payments, rates, returns, tax reserves, or cash-flow choices before you request a quote or make a commitment.

Cross-check

Compare the answer with the contract, lender estimate, tax form, brokerage statement, payroll record, or invoice that will control the real-world outcome.

Watch for

Do not rely on a single optimistic rate, return, or fee assumption. Money pages work best when you run low, base, and high cases and keep professional advice separate from the estimate.

This page belongs to the Finance calculator library, so the answer should be read in the context of the decision you are modeling rather than as a universal rule.

Before relying on this medicare advantage vs medigap cost estimate

Most calculator mistakes come from the inputs, not the arithmetic. Use this short audit before you reuse the answer in a spreadsheet, quote, application, or important conversation.

Confirm source numbers

Match balances, rates, fees, taxes, income, and payment dates against the lender quote, payroll record, tax form, statement, invoice, or contract.

Separate cash flow from total cost

A lower monthly payment can still cost more over time if fees, interest, taxes, or a longer term are hidden in the structure.

Run conservative cases

Test at least one higher-cost or lower-return case before using the output for a purchase, refinance, investment, loan, or tax decision.

Rerun this page when the rate, price, term, fee, tax rule, income, expense, or expected holding period changes.

How to Use

  1. Enter the monthly Medicare Advantage premium and expected annual medical and drug costs.
  2. Enter the Medigap premium, separate Part D premium, and expected out-of-pocket costs.
  3. Compare total annual cost for each path.
  4. Use the premium gap to decide how much predictability Medigap would need to provide.
  5. Review provider networks, drug formularies, underwriting rules, and travel needs before switching.

Frequently Asked Questions

Is Medigap the same as Medicare Supplement?

Yes. Medigap policies are also called Medicare Supplement policies. They are designed to cover some Original Medicare cost sharing, while Medicare Advantage replaces Original Medicare administration through a private plan.

Why include Part D separately for Medigap?

Medigap policies sold today do not include prescription drug coverage, so many people compare a Medigap premium plus a standalone Part D premium against a Medicare Advantage plan that may bundle drug coverage.

Can this tell me which Medicare plan is best?

No. It is a cost estimate only. Networks, authorization rules, drug tiers, county availability, enrollment windows, and guaranteed-issue Medigap rights can matter more than the first-year cost.

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