Hi, After filling in our tax from and delivering to our local tax office (Charente-Maritime 17) at the end of May, last week we received a letter from them which basically is saying that we need to get a Siret number even though we only have a gite and earn less than €23k, but it is more than 50% of our income. Have been trying to find out why as we have been doing it for 10 years - the tax office just say 'they (whoever they are!) have started at the coast and have now instructed our local tax office that everybody needs to register their gites with a siret number. When we stated that we earned less than €23k per year and should still be on the 'non-professionnel' regime she insisted that no matter what circumstances everyone had to register at the C of C and she would not back down from this. Can anyone clairfy this situation? Also if we disagree with it who do we approach. Would be grateful for any advise.