Our Methodology

How Tax Calculations Work

We program our calculators to follow the exact tax brackets printed in the FBR Finance Act. When you type in your income, the code matches your annual salary against the legal slab limits. If your income crosses a boundary, the calculator adds the fixed base tax and multiplies the remaining amount by the correct percentage. There are no hidden formulas.

Official FBR Sources

We strictly rely on primary government sources to populate our configuration logic. The primary documents we review include:

• The annual Finance Act passed by the National Assembly of Pakistan.
• Income Tax Ordinance, 2001 (as amended).
• Official Circulars and Statutory Regulatory Orders (SROs) published on the official FBR website (fbr.gov.pk).

Review and Update Process

The government usually changes tax rates every June during the federal budget. When the new Finance Bill is published, we read the proposed changes. Once the National Assembly passes the final Finance Act, we update the code on Tax.pk. We run tests to make sure boundary incomes (like exactly 600,000 or 1,200,000) calculate perfectly before we publish the new version.