You will only need to pay an annual contribution, which depends on your required rent deposit amount. The annual contribution, called premium, amounts to only 5% of the deposit amount.
Note: For example, instead of paying a rent deposit of € 1000, you only need to pay a small fee of € 50.00 for a rent deposit guarantee for one year.
The premium needs to be paid at once at the start of the contract. Monthly payments are not possible.