If you are an employee:

• A copy of your ID and, if you are a foreign national, a copy of your resident card
• A letter/certificate from your employer indicating that you have not resigned and that you are not currently on a trial period
• Your last three pay slips
• Your last tax declaration
• Last three rent receipts or last property tax bill if you are a homeowner
• Utility bills (gas, electricity) from your current home

If you are an independent/self-employed worker, freelancer, etc.:

• Kbis (NB: company registration) dated under three months
• Last two tax assessment notices
• Last two balance sheets