About PH Paymath

PH Paymath is a one-person project that aggregates PH agency rate tables (SSS, Pag-IBIG, PhilHealth, Meralco, NWPC) into fast, no-login calculators for Filipino payroll and household math.

The goal is to make the formulas public, dated, and obvious — so anyone working in PH payroll or household budgeting can check a number quickly without digging through PDFs or re-typing brackets into a spreadsheet.

What I don't do

• I don't file taxes. I don't represent any agency. Tools are calculators, not filings.
• I don't replace your payroll provider or your HR's computation. If your payslip disagrees with this site's output, your payslip wins.
• I don't sell user data. There is no login. Cloudflare Web Analytics is the only measurement tool, and it is cookie-free.

Source data

Every rate table is sourced from a public circular. Each page shows the source URL and the last-updated date for the table it uses. If a circular changes and we haven't updated, the freshness check on the methodology page flags it.