Monitoring process
Federal and state source URLs are checked for content changes and written to source-change reports.
A source change is a signal for manual review before any calculator logic or data changes.
Trust and transparency
Payroll Tax Updates
Source monitoring is a review workflow, not an automatic tax table updater.
Annual updates
Annual payroll updates should review IRS Publication 15-T, Publication 15, FICA limits, Additional Medicare guidance, and state agency references.
Reviewed changes should update source URLs, tax data, last-reviewed dates, and tests together.
No automatic claims
The site does not claim a calculator is updated merely because a source changed.
State withholding pages stay clearly limited until the payroll logic is reviewed.