Locale coverage
CalcoTools detects your country and adjusts currency symbols, number formatting, dates, and default measurement units accordingly for every one of the 197 countries listed below. That mechanical formatting is safe to ship everywhere since there’s no fact to get wrong. Real tax-bracket and policy data — the kind a calculation can actually get wrong — is a different, higher bar: it only ships for a country once someone has actually sourced and dated it. This page lists exactly which is which, honestly, rather than implying broader coverage than actually exists. See How We Calculate for the underlying formulas themselves.
Sourced tax data (5 countries)
| Country | Source | Last verified |
|---|---|---|
| Australia | https://www.ato.gov.au/tax-rates-and-codes/tax-rates-australian-residents | August 26, 2026 |
| Canada | https://www.canada.ca/en/revenue-agency/services/tax/individuals/tax-rates-brackets/current-year.html | August 26, 2026 |
| India | https://www.incometax.gov.in/iec/foportal/help/new-tax-vs-old-tax-regime-faqs | August 20, 2026 |
| United Kingdom | https://www.gov.uk/income-tax-rates | August 26, 2026 |
| United States | https://www.irs.gov/newsroom/irs-releases-tax-inflation-adjustments-for-tax-year-2026-including-amendments-from-the-one-big-beautiful-bill | August 20, 2026 |
Mechanical formatting only (192 countries)
Not yet sourced — these countries get correct currency symbols, number grouping, dates, and a sensible metric/imperial default, but any tax or policy calculator falls back to general/U.S. figures for a visitor from one of them. Always consult a local advisor for tax specifics.