a. When allocating a home, we will check your income.
This is necessary because it is required that rent matches your joint income.

b. During the check, you must submit supporting documents that your stated income is correct.

c. You will then show that the income you have entered is correct.

d. To make this easier, you can already add the supporting documents to your data.
This also prevents you from missing out on a home because you do not submit your documents on time.

e. Are you actively looking for a home?
Then it is useful to upload your income documents in advance.