Tax calculator features
BOMCAS Calculators is a Canadian tax and payroll plugin for WordPress. The figures are estimates for the year in the rate file. They are not a filing.
The rate file in use is 2026. It lists 13 provinces and territories, plus the federal tables.
Tax and payroll
- Income tax for each province and territory in the rate file, with federal brackets, basic personal amounts, and the provincial pieces that file records.
- Sales tax for GST, HST, PST, and QST, including a reverse calculation that removes tax from a total.
- Payroll deductions and salary after tax, with CPP, EI, and provincial withholding.
- Canada child benefit, FHSA room, and RRSP room, read from the same rate file.
- Vehicle purchase tax, land transfer tax, corporate tax, capital gains, and capital cost allowance.
Publishing
- A rate database you can export and import. A new year in that file changes the numbers on the next page view. Page bodies are not rewritten.
- Shortcodes, the BOMCAS Calculator block, and an embed for another page.
- Help articles stored in the plugin, for the person who administers the site.
Privacy and plans
- Optional lead capture and booking. Both stay off until you turn them on.
- The arithmetic runs in the visitor’s browser. Inputs are not posted unless someone asks for an email or a PDF.
- White-label on Agency, so a client site can hide the vendor name.
Alberta, British Columbia, Manitoba, New Brunswick, Newfoundland and Labrador, Northwest Territories, Nova Scotia, Nunavut, Ontario, Prince Edward Island, Saskatchewan, Quebec, Yukon.
