You will benefit from a €0.90 tax break per service voucher for the first 150 cheques bought per person. A service voucher of €9 therefore only actually costs €8.10 after the tax reduction.
If you have a limited income, you can order service vouchers and benefit from a tax reduction via a ‘refundable tax credit’.
You won’t pay any supplement: all other costs (registration fee, administrative fee, travel costs for your domestic help from home to place of work, work clothes, insurance…) are paid by arobase services.