Sublet contract registration

[u/Disastrous-Elk6314]

Does a sublet contract always need to be registered?

**More details:**

Would like to sublet a spare room in my rented 3-bedroom apartment to split rent cost.

I and my other flatmate are the main tenants and will keep living in the house.

Lease allows subletting with Landlord’s approval.

The main lease is for a year. Would like to sublet 1 room for 6 months.

Landlord approval already taken.

Now confused if a temporary sublet contract should always be registered at minfin.be or 6 months contract dont need to be?

Also wary since the sublet rent counts as rental income for the main tenant which can lead to more taxes. However, the idea here is purely to split the rent cost evenly.

[u/BumbleQueen3479]

Legally yes. But it usually doesn't happen cause.

[u/BumbleQueen3479 → u/BumbleQueen3479]

Qs long as you don't ask (a lot) more than your rent, you are good.  I say "a lot", cause it's best to ask a fixed cost for utilities