Private domestic help
Yes, when it comes to contributing for common and work-related issues, the amount you need to pay depends on how much you pay to your domestic employee. We use a contribution scale to determine this. Starting from the implementation of Royal Decree-Law 16/2022, you will also have to pay contributions for unemployment and FOGASA. If you want to see an example of how this works, check out this article: Bases de cotización a la Seguridad Social para el año 2023.
If you're hiring a cleaning company, you don't need to worry about making any contributions. No need to pay anything in this case.