How we calculate

Every number on GulfHisaab comes from a documented rule in UAE law or regulation, applied with a stated formula. This page explains how we build, test and maintain the calculators, so you know how far you can rely on them.

Sources we use

We work from the official text wherever it exists:

• Federal laws and executive regulations — in particular Federal Decree-Law No. 33 of 2021 on the Regulation of Labour Relations and its Executive Regulations (Cabinet Resolution No. 1 of 2022), as amended.
• Ministry of Human Resources and Emiratisation (MOHRE) and the official UAE Government portal — ministerial resolutions and official guidance on applying the labour law.
• Central Bank of the UAE — limits on personal and home loans.
• Federal Tax Authority — VAT and corporate tax rules.
• Free zone authorities — DIFC and ADGM, which have their own employment laws.

Each calculator page lists the official sources it relies on, with links, and the date it was last reviewed. Law firms' and news articles are used only to cross-check our reading, never as the sole source for a rule.

When the law leaves a gap

Some practical details are not written into the law — for example, whether a monthly salary is divided by 30 or by 365 days ÷ 12 to get a daily wage. In those cases we use the method most commonly applied, say clearly on the page that it is a convention rather than a legal rule, and show how much the alternative would change the result.

Precision and rounding

Calculations are carried out at full precision. Amounts you might compare with a final settlement, such as gratuity, are shown to the fils; other amounts are rounded to the dirham. Employers and banks may round at different steps, so their figures can differ from ours by a few dirhams.

Testing

Before a calculator is published, we check it in three ways:

1. Against hand calculations of the legal formula for several input combinations.
2. Against worked examples published by official sources where they exist.
3. At the edges — just under and just over a legal threshold, very short and very long service, the caps in the law — to make sure the results stay correct.

Worked examples on our pages are calculated with the same code that runs the calculator, and an automated check confirms they still match before every update.

Keeping pages current

We watch for amendments to the laws and regulations each page depends on and recheck them on a regular schedule. The "Last reviewed" date on each page shows when it was last checked; we change that date only when a page has actually been reviewed, not to make it look fresh.

Corrections

If you find a mistake, email hello@rupeekhata.com with the page and the inputs you used. We verify every report, fix confirmed errors promptly and record every correction in our corrections log.

Independence

GulfHisaab may show advertising to cover running costs. Advertisers have no say in what we publish, and no calculator result is influenced by any commercial relationship. We do not recommend specific banks, employers or financial products.

Limits of a calculator

A calculator can only work with the inputs it is given. It cannot know the terms of your contract, deductions your employer may legally make, or how a dispute would be decided. Treat results as a well-founded estimate, and read our disclaimer before acting on them.