Tax calculators

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Verify before you file

Official tax sources

Government links

Use these official tax authority pages to verify rates, brackets, thresholds, and filing rules for the relevant tax year and region. CalcCove calculators use your entered rate as a planning estimate.

Pakistan

Federal Board of Revenue (FBR)

Withholding and sales tax guidance from Pakistan's federal tax authority.

FBR withholding tax rate card FBR sales tax resources

United States

Internal Revenue Service (IRS)

Federal filing and individual income tax information for the United States.

IRS filing and tax information IRS individual tax filing

United Kingdom

HM Revenue & Customs (HMRC)

Current income tax rates, allowances, and historical rate tables.

Income tax rates and allowances HMRC rates and allowances collection

United Arab Emirates

Federal Tax Authority (FTA)

VAT, excise tax, corporate tax, and registration guidance for the UAE.

FTA tax portal FTA VAT guidance

India

Income Tax Department

Income tax slabs, filing guidance, and current return information for India.

Individual tax slabs Income Tax e-Filing portal

Canada

Canada Revenue Agency (CRA)

Federal, provincial, and territorial income tax rates and brackets.

Tax rates and income brackets CRA all rates

Australia

Australian Taxation Office (ATO)

Individual income tax rates, codes, GST, and other tax guidance for Australia.

Individual income tax rates ATO GST overview

Source links checked October 2, 2026. Tax rules change; confirm the current official guidance before relying on an estimate.