Changelog

Tax data changelog

Tax data and product updates for the 2026 paycheck calculator.

  1. MVP buildAdded federal Pub 15-T annual percentage method schedules, 2026 FICA constants, CA/TX/FL/NY enhanced pages, and 8 additional priority state pages.
  2. SEO and GEO hardeningAdded richer static page content, trust pages, llms.txt, expanded schema, and trailing slash canonical routing.
  3. State payroll table hardeningAdd exact withholding-table implementations for California, New York, New Jersey, Pennsylvania local EIT, Ohio municipalities, and paid leave programs.