The last lesson is a source-reading lesson, and it exists because the most likely challenge to a correct payslip is a screenshot of an official page showing different numbers.

The hazard. GPSSA's own FAQ pages still show only the pre-2023 figures — 20% total and contribution-calculation limits of AED 1,000 to AED 50,000. A colleague, an auditor or an employee who checks the source will see those numbers, compare them with a Cohort B payslip charging 11% and 15% on a band of AED 3,000 to AED 70,000, and conclude your payroll is wrong. It is not. The page is answering for the older law.

The mental model — why both sets of figures are real. Cohort A did not close when the new law arrived; it stopped accepting new members. Everyone first insured before 31 October 2023 is still on 5% and 12.5% with a AED 50,000 ceiling, and will be for the rest of their working life. The FAQ is not incorrect for that population. It is incomplete for the one that started on or after 31 October 2023, whose contribution payments commenced 1 January 2024. Both regimes are live, and any source that presents one set of rates as "the" UAE rates is describing half the country.

The GCC page has the same problem in a different shape. The published rates for Bahrain, Kuwait, Oman, Qatar and Saudi Arabia carry no "last updated" date on the page, and several of the entries carry effective dates of their own. An undated page cannot tell you whether it is current, and a page that mixes dated and undated entries cannot even tell you which parts are stale. Given that Saudi rates escalate every July and Bahrain's every January, the probability that an undated snapshot is out of date rises every month you leave it unchecked.

The click path here is a register you keep yourself. Date every figure, name the instrument that sets it, and record where you read it and when. It costs one line per figure and it converts an argument into a document. Keep a short register alongside your payroll configuration, exactly like this one.

The worked example. Someone forwards you the GPSSA FAQ and asks why an employee is being deducted 11%. Three sentences close it: the employee was first insured on a date on or after 31 October 2023, so Federal Decree-Law 57/2023 applies to them rather than Federal Law 7/1999; the page they are reading answers for the older law, which still governs colleagues first insured before that date; here is the register entry with the instrument and the date it was verified. Nobody needs to be persuaded, because nothing is being asserted without a source.

The failure mode. The dangerous move is the reverse one — changing a live payroll configuration on the strength of an undated web page, because a rate on screen looked different from a rate in the system. Undated pages have made establishments revert correct configurations to superseded ones, and the error then runs until the authority reconciles. Change a rate when you hold the instrument or the authority's dated publication, and record both. Everything else is a prompt to go and check, not a reason to edit.