Renting a House in France before the end of the transition period

[JaneJones]

No, nobody has to know. However you might find this thread useful as several suggestions about what documents could be helpful to collect.

Proving date for carte de sejour?

Almost all ready to go on the new site. URSSAF documentation, tax bill, passport, attestation d’hebergement, etc. But I have nothing to prove my date of arrival. I live in my partner’s house, so no date of purchase or rental agreement, and it took me several months to get my dossier through URSSAF. I paid tax from 23 March and didn’t get my business open till June (mainly through URSSAF losing my file and having to reapply). Any ideas? I have my 2017 avis d’imposition but it doesn’t state the period I was tax resident, unless I’m missing something.