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Updates

What is changing in FERSCalc.

A running history of updates to the FERSCalc site and calculator.

Added visible update history

  • New /updates page with a running changelog of site and calculator changes.
  • Footer shows the last-updated date and links to the changelog.

Fixed several FERS calculation edge cases

  • Corrected pension, TSP, and tax calculations in reported scenarios.

Simplified the public site navigation

  • Streamlined menus, landing page, and field guide for easier browsing.

Revamped the public homepage

  • Refreshed the homepage for first-time visitors.

New blog post: unused sick leave under FERS

  • Published a guide on how unused sick leave affects pension calculation.

New blog post and projection accuracy

  • Added FEHB 5-year rule guide.
  • Updated Medicare surcharge projections to use annual CMS tables.
  • Fixed pre-retirement salary growth so it correctly projects High-3 salary.

New blog post and results improvements

  • Added FERS supplement earnings-test guide.
  • Fixed FICA, AGI, and RMD calculation accuracy.
  • Added break-even trend curve and Monte Carlo uncertainty bands.
  • Added clearer readiness indicators and recommendations on the Results page.

New blog post: OPM retirement backlog

  • Published a guide on what the OPM backlog means for new retirees.

Accuracy and trust improvements

  • Fixed Georgia retirement-income exclusion, Social Security wage-base indexing, and tax-exempt-interest handling.
  • Added Qualifying Surviving Spouse filing-status support.
  • Updated the Assumptions & Coverage page.

Historical stress testing

  • Added historical retirement scenario replay for stress testing.

Clarified the free pricing posture

  • Updated pricing and messaging to make the free-by-intent posture explicit.

Shareable scenarios and contextual help

  • Added shareable scenario URLs via the Share button.
  • Added contextual ? field help and the /field-guide reference page.

Refined state tax modeling

  • Improved state tax calculations with more detailed rules for specific states.
  • Published the Assumptions & Coverage page.

Initial FERSCalc release

  • FERS retirement calculator with pension, TSP, Social Security, and FEHB projections.
  • State income tax modeling, Monte Carlo TSP stress testing, scenario comparison, and Person B household support.

Ready to run your own numbers?

Open FERSCalc to compare retirement dates and projected income.

FERSCalc

A free, local-first planning tool for comparing federal retirement timing and income.

FERSCalc helps you pressure-test scenarios before you make a decision. It is not affiliated with OPM or any federal agency, and it does not replace official benefit estimates or professional advice.

A Makefield Works project

Expectations

  • Calculator data stays in your browser unless you export it or share a link.
  • State income tax is modeled for all 50 states and DC.
  • Results depend on your inputs and planning assumptions.

© 2026 FERSCalc. All rights reserved.

Last updated June 20, 2026

Confirm final decisions with official sources and qualified advisors.