As undocumented migrant, you are not allowed to work. However, if you do work, you still have rights as a worker: right to fair pay, right to be paid when you are sick, right to paid holiday.
Labour rights valid for workers without residence permit
The legal rights and the rights granted by the CAO [Dutch Collectieve ArbeidsOvereenkomst, collective employment agreement] apply to everyone who works. This agreement describes the terms of employment in particular sectors of industry. For example the law stipulates the minimum wage, the minimum number of days off and the right to employment protection.
The following rules apply if you offer services to private persons as a private person, for instance as a cleaner: the right to the minimum wage, four weeks holiday and 6 weeks continuation of pay in case of illness.1
How to claim labour rights
To exercise your labour rights, it is necessary to show your work relationship. This can be a written labour agreement, but other evidence is valid as well such as job sheets or statements given by colleagues. If you can prove that you worked for the same employer during 3 months, each week or at least 20 hours per month, it is assumed that you are in permanent employment.2 Employers are obliged to pay your wage according to the corresponding CAO, during illness, and during holidays.
If you have been caught by the authorities doing illegal work you are always entitled to claim overdue wages. If there is proof of an employment agreement, it is assumed that the employment lasted for at least 6 months. In that case you can claim 6 months overdue payment.3
If there is severe exploitation in the work place (human trafficking) it is important that you report the offence. In many cases you can benefit from the special rights that apply to people who report cases of human trafficking. Fairwork and Comensha provide support to people who report cases of human trafficking.
Joining a union
Even people without a residence permit can join a trade union. FNV Bondgenoten [Allies] has a special unit for cleaners without residence permits, ‘domestic workers’. This unit lobbies for workers and residence rights of undocumented domestic workers. See here: https://fnvmdw.com/