Under the Skills Development Levy (SDL) Act, as an employer, you are required to contribute SDL for all your employees* up to the first $4,500 of each employee's total monthly wages at a levy rate of 0.25% or a minimum of $2 (for total wages of $800 or less), whichever is higher. This is a compulsory levy on top of CPF contribution and Foreign Worker Levy (FWL).

(* Employees include full-time, casual, part-time, temporary and foreign employees rendering services wholly or partly in Singapore.)

The total monthly wages includes any salary, commission, bonus, leave pay, overtime pay, allowance and other payments in cash.

After you have computed the SDL for each employee, you need to add up the total amount of SDL payable and round down to the nearest dollar.

You can refer to this table, that shows an example on the computation of the SDL payable.