Terms of use

PH Paymath provides calculators built from publicly available rate tables. The output is informational and must not be relied on for filing, payroll certification, or legal purposes without independent verification.

By using this site you accept that:

• Your payslip, HR computation, or agency assessment is the source of truth — not this site.
• Rate tables may be stale. Always check the last-updated date on the relevant page.
• We disclaim liability for any financial, payroll, or tax decisions made based on this site's output.

No warranty of any kind, express or implied.

Affiliate relationships

Some outbound links to financial products are affiliate links: we may earn a commission when you sign up through them, at no additional cost to you. Such links are disclosed where they appear. Affiliate relationships do not affect any calculation, rate table, or methodology on this site, which derive solely from published government sources.