Anubis Calc

Editorial & Review Policy

Last updated:

At Anubis Calc (calculatoranubis.com), we believe that any online calculator — especially those involving money, taxes, salaries, zakat, or health — must be transparent, backed by primary sources, and rigorously tested before anyone relies on its output.

1. Our 5-Step Verification Standard

  1. Primary Official Sources: We never rely on unverified blogs or secondary forums. Tax, labor, and statutory rules are sourced directly from government authorities (such as ZATCA in Saudi Arabia, the FTA in the UAE, the Egyptian Tax Authority, and HMRC in the UK). Mathematical, scientific, and health formulas follow international standards (NIST, ISO, and the World Health Organization).
  2. Exact Integer-Cent Arithmetic: Monetary calculations are processed in integer cents/halalas to eliminate floating-point rounding drift.
  3. Automated Known-Answer Testing: Every calculator engine is backed by automated unit tests against textbook and statutory worked examples. If any test fails, the build stops automatically.
  4. Worked Examples & Formula Transparency: Every page displays the exact formula used and a step-by-step worked example that matches the live calculator engine.
  5. Expert Financial & Tax Review: All financial, accounting, tax, and business calculators are reviewed by Mr. Behairy (Accountant, Financial Auditor & Tax Specialist) to verify accounting accuracy and statutory compliance.

2. Rule Updates & Version Control

Tax rates and statutory thresholds change over time. We store country-specific legal and tax rules in versioned files with an explicit verification date displayed under the “Sources & assumptions” section of every calculator page.

3. Editorial Independence

Our calculators are impartial and independent. We do not alter formulas to promote specific banks, lenders, or financial products. Advertising is strictly separated from calculator inputs and results.

4. Corrections & Feedback

We welcome feedback from accountants, educators, researchers, and users. If you spot an outdated rate or an error in any formula or explanation, please email support@calculatoranubis.com with the calculator link and official source so we can verify and update it promptly. See also About us and our Disclaimer.