Trust and standards
Editorial policy
Who publishes Tax Globy, where the numbers come from, how they are checked, how mistakes are corrected, and what the calculators deliberately leave out.
Who publishes this site
Tax Globy is an independent calculator project. It is not affiliated with the Federal Board of Revenue, the Income Tax Department of India, HM Revenue & Customs, the Internal Revenue Service or the State Taxation Administration, and it is not endorsed by any of them.
The site is maintained by the Tax Globy editorial team. We do not claim professional tax qualifications, and we do not provide personalised tax advice. For a return, a dispute or a cross-border position, use a licensed adviser in the relevant jurisdiction.
How the site is funded
Tax Globy is self-funded. There are no display adverts, sponsored calculator placements, affiliate links or paid rankings. No tax authority, software vendor or advisory firm pays for coverage, and no page is written in exchange for payment.
Where the tax rules come from
Every band, rate, threshold and deduction is transcribed from the primary official publication for that country: the Finance Act and FBR publications for Pakistan, the Union Budget and Income Tax Department for India, GOV.UK and the Scottish Government for the UK, IRS revenue procedures for the United States, and the State Taxation Administration for China.
Each country page lists the exact source links and the date the figures were last reviewed. Tax years are labelled explicitly because they do not align across countries.
How calculations are produced and checked
Rates are encoded once in a calculation engine and every page uses that engine; there are no hand-typed results. Each rule change is covered by automated tests that assert band boundaries, allowances, rebates, payroll contributions, rounding and reconciliation (gross minus tax minus deductions equals net).
A public set of hand-calculated cases is published on the verification page, together with the engine’s current result. If a case stops matching, the build fails before the site is deployed.
Review and update schedule
Every calculator is reviewed when a budget or revenue procedure changes the rules, and at the start of each tax year. The “last reviewed” date on a page reflects the most recent check against the official source, not the date the page was merely edited.
Substantive changes are recorded in the change log with the date and a short description, so readers can see what moved and when.
Corrections
If a figure looks wrong, email support@taxgloby.com with the country, tax year, the salary entered and the figure you expected. Corrections that can be traced to an official source are normally published within five working days, and the change log is updated at the same time.
We correct the data and the explanation together, so a changed rate never leaves a stale sentence behind.
Use of AI
AI tools assist with drafting, copy-editing and code review. They are not used to invent tax rates or to generate figures: every number displayed is computed by the tested engine from the transcribed official rates. A human reviews each change before it is published.
What the calculators do not cover
Estimates cover salary income only for the selected country and tax year. They do not model self-employment, rental or investment income, capital gains, credits, state and local taxes, or every relief available. Cost-of-living differences are not modelled, and currency conversion in the comparison tool is indicative rather than purchasing-power parity.
Results are estimates, not assessments, and should not be filed as a return without checking the official source or a qualified adviser.
See the evidence, not just the policy
The verification page shows hand-calculated cases alongside the engine output, and the methodology page explains the formulas and the automated checks.