Is an addendum to an employment contract legally binding in the UAE?

Yes. In the UAE private sector, an addendum that properly amends a registered employment contract is binding, provided both parties agree to it and, where required, it is reflected with MOHRE. The Labour Law (Federal Decree-Law No. 33 of 2021) treats the employment relationship as governed by the contract and any lawful amendments to it, so a signed addendum that varies salary, job title, working hours, or other terms becomes part of your enforceable agreement. For the change to hold up, it should be in writing, clearly identify which clauses it replaces, be signed by both sides, and not reduce protections below the statutory minimums the law guarantees, an addendum cannot waive rights the law makes mandatory. Because the official MOHRE contract is the reference document in a dispute, an addendum that is never registered or that contradicts the MOHRE contract can create confusion. Keep signed, dated copies of every addendum. If you are unsure whether a proposed addendum is valid or quietly strips a protected right, you can compare verified UAE legal professionals on LEXAI and verify registration steps with MOHRE.