Just started renting house for hols, got 5 weeks booked, where to start with tax please.

[condorman]

Hi Everyone. Just started renting my house for holidays. This year. I got 6 weeks booked £3500 gross

expenses of £1500 so £2000 profit to live on for the summer no other income. I live in England but spend about 4 months here. can anyone point me in the right direction as to where to set off to first to pay my tax. Im thinking ill have to go to the Tressor Publique and register as micro bic so ill pay 10% of 50% of the gross if im lucky. Thank you.