Chassis number (see registration document)

Purchase invoice or renting/leasing invoice/contract (if recently acquired)

Monthly amount of your transport expenses (e.g. fuel, insurance, tax, loan repayments)

If you have an internet, TV and mobile phone bundle: monthly amount and details of the package

Number of km between your home and your fixed place of work (= a workplace you go to more than 40 days per year)

If you are an owner: surface area (in m²) of the property and the professional space (separate office room), monthly amount of running costs (e.g. water, electricity, heating, insurance, property withholding tax, co-ownership charges)

If you operate through a company: amount of the unindexed cadastral income

Current year payslip if you are or were an employee

Amounts received from other income sources (e.g. unemployment benefits, health insurance, scholarship)