Kefiw

Archived noindex page. Kefiw's public focus is Property decision help.

Archived page

This older Kefiw page is kept for reference, marked noindex, and removed from the primary sitemap. The current Kefiw experience is focused on property decisions: cost, quotes, damage, buying, selling, owning, and packets.

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Calculator Methodology

How the Medicare IRMAA Calculator estimate works

Use this to see how Medicare income thresholds may change Part B and Part D premium exposure.

This estimate is for educational planning only. Actual costs may vary based on location, provider, care needs, plan terms, income, eligibility, family support, market rates, and future changes. Confirm details with providers, insurers, Medicare, Medicaid, tax professionals, legal professionals, or qualified advisors as appropriate.

Use the calculator Build family summary

Inputs used

The result changes when these inputs change. Defaults are planning placeholders, not recommendations.

Modified adjusted gross income
Default: 106000 $
Filing status
Default: single
Standard Part B premium
Default: 202.9 $
Part D / MA drug-plan premium
Default: 40 $

What is included

  • The visible inputs listed on the calculator page.
  • The assumptions shown below the calculator.
  • Monthly, annual, or scenario math based on the calculator family.
  • Risk flags and follow-up prompts designed to help users ask better questions.
  • Input: Modified adjusted gross income.
  • Input: Filing status.
  • Input: Standard Part B premium.
  • Input: Part D / MA drug-plan premium.

What is excluded

  • Provider quotes, plan documents, eligibility decisions, legal interpretation, tax treatment, or clinical judgment.
  • Every state, plan, facility, agency, pharmacy, family, or future health-change scenario.
  • Guaranteed pricing, coverage, admission, benefits, claims approval, or professional advice.
  • Full formulary review, pharmacy-specific pricing, network validation, prior authorization outcomes, appeals, or subsidy determinations.

What can make the estimate too low

  • A drug, pharmacy, provider, network, prior authorization, or plan rule is missing from the inputs.
  • Income changes create IRMAA, subsidy, eligibility, or tax effects that the calculator does not fully model.
  • A bad-year scenario includes more care, uncovered services, or denied claims than expected.

What can make the estimate too high

  • The user enters a conservative bad-year cost that is higher than actual use.
  • A subsidy, employer support, Extra Help, Medicaid, VA benefit, or other assistance applies but is not entered.
  • A plan negotiates lower costs or includes services the simplified model treats as out of pocket.

Assumptions

  • Uses 2026 Medicare Part B and Part D IRMAA thresholds.
  • Uses the income entered as the Medicare MAGI lookback amount.
  • Does not determine appeals, life-changing-event adjustments, or final Social Security billing.

When to confirm with a professional

  • Before signing a facility, home care, insurance, employment, or financial agreement.
  • Before relying on Medicare, Medicaid, VA, long-term care insurance, HSA, FSA, tax, or legal assumptions.
  • When medical symptoms, medication changes, falls, dementia safety, or urgent-care questions are involved.
  • When a provider quote, plan document, policy, or agency rule conflicts with the estimate.