Lesson 3 — Contribution salary is stored, not recalculated
The base the contributions are computed on is a stored figure with a yearly rhythm, and treating it as a live calculation is how your records drift away from GPSSA's.
The obligation. Both regimes fix the contribution salary on the January salary each year — on the joining month for a new hire — and hold it for the whole year. A mid-year raise does not change the base until the following January. That is the rule the software follows, and it is why the figure is stored on the employee rather than recomputed from the contract every month.
The mental model. Contribution salary is a value you maintain, not a formula that maintains itself. Set it each January. If you leave it empty the system falls back to a computed figure, which is reasonable on a first run but will drift from the figure GPSSA has registered — and the moment those two disagree, every reconciliation you do starts with an unexplained difference.
The click path. Employee form → HR Settings tab → UAE Payroll & Social Security → Contribution salary. Put a recurring task in January to review it for every Emirati employee, and record the salary figure it was taken from in your own notes, so next January's reviewer can see the working.
The limits apply to the stored figure. Each cohort has its own floor and ceiling, and they are different numbers, so the same salary can produce two different bases.
| Salary the figure is taken from | Cohort A base, limits AED 1,000–50,000 | Cohort B base, band AED 3,000–70,000 |
|---|---|---|
| AED 2,500 | AED 2,500 | AED 3,000 |
| AED 30,000 | AED 30,000 | AED 30,000 |
| AED 80,000 | AED 50,000 | AED 70,000 |
The worked comparison. Take the same Emirati employee, with a contribution salary of AED 30,000 fixed on the January salary, and run them under each cohort. This is the arithmetic behind Lesson 2's error table.
| Line | Cohort A — Law 7/1999 | Cohort B — FDL 57/2023 |
|---|---|---|
| Contribution salary | AED 30,000 | AED 30,000 |
| Employee share | 5% — AED 1,500 | 11% — AED 3,300 |
| Employer share, nominal | 12.5% — AED 3,750 | 15% — AED 4,500 |
| Government's part | 2.5% — AED 750, on top | none at this salary, the subsidy stops at AED 20,000 |
| Your cash cost | AED 3,750 | AED 4,500 |
| Total reaching GPSSA | 20% — AED 6,000 | 26% — AED 7,800 |
Read the last column against the first. The employee pays AED 1,800 more, you pay AED 750 more, and GPSSA receives AED 1,800 more — not AED 2,550. The difference is the government's AED 750, which arrived on top under Cohort A and does not arrive at all at this salary under Cohort B. The reform moved most of the increase onto the employee and a smaller part onto you.
Inside the subsidy band the answer changes shape. Take the same comparison at a contribution salary of AED 12,000, which sits under the AED 20,000 line.
| Line | Cohort A — Law 7/1999 | Cohort B — FDL 57/2023 |
|---|---|---|
| Employee share | AED 600 | AED 1,320 |
| Employer share, nominal | AED 1,500 | AED 1,800 |
| Government's part | AED 300, on top | AED 300, funded out of the employer's 15% |
| Your cash cost | AED 1,500 | AED 1,500 |
| Total reaching GPSSA | AED 2,400 | AED 3,120 |
Your cash cost is identical in both cohorts at this salary — AED 1,500 either way. The entire increase falls on the employee, whose deduction rises from AED 600 to AED 1,320. If your Emirati workforce sits mostly under AED 20,000, the reform changed your employees' take-home pay far more than it changed your payroll cost, and that is a conversation worth having before they notice it on a payslip.
The failure mode. Two things go wrong with this field. It gets left empty, and the computed fallback slowly diverges from GPSSA's registered figure until a reconciliation cannot be closed. Or January passes without anyone touching it, and a year of contributions is calculated on a salary that is two raises out of date. Both are invisible on the payslip, which is exactly why they need a calendar entry rather than vigilance.