If you register your business at your own home, nobody has to authorise it: two questions are enough to confirm that.
If someone hosts you, you need their attestation, and the proof of address without which it is worthless. You leave with the attestation filled in, ready for your host to sign.
Save your identity once: it will fill in the twelve forms. It stays on this device.
This is the registered office you declare to the single window, not necessarily where you work.
Everything happens on your device: the document is built there, nobody receives your answers, not even us, and it all disappears with the tab.
Information verified on October 1, 2026. Document composed from the model published by the French authorities, and dated. It is not legal advice: you remain responsible for the accuracy of what you declare and sign.
The official pages where we read the rules and amounts applied here.
Your company's registered office is an administrative address: the one the single window, your invoices and your post use. Working there, receiving clients or storing equipment is another matter, settled by the lease, the building rules and, in large cities, the construction code. A relative's attestation says nothing about that second point, and deliberately so.
If you are hosted, your file requires two documents, and filing the first without the second earns you a request for correction, so a fortnight's delay:
You may register your business at your personal address, whether you own or rent, for as long as you like. An electricity bill or your property tax notice is then enough as proof. What remains is to check that your lease and building rules do not forbid the activity itself.
Many sites announce a « hosting attestation » and a « registered address authorisation » separately. Your file asks for only one, and having the same person sign twice for two sentences serves no purpose: the document produced here attests the hosting and authorises the registration.
| Your address | What the single window expects |
|---|---|
| Your home, as owner | A bill or property tax notice in your name |
| Your home, as tenant | A rent receipt or bill in your name |
| Someone else's home | This attestation, plus their proof, under 3 months old |
| Domiciliation company | The domiciliation contract |
| Coworking or incubator | The occupancy contract |
A domiciliation company must be approved by the prefecture. A contract that does not mention that approval exposes your registration to refusal.
She has her father sign the attestation on a Sunday evening, scans it and attaches it to her formality. All in order, she thinks.
The single window notifies her of a missing document: her father's proof of address, in his name, less than three months old.
She cannot add it to her file until the correction request is issued, and her SIRET waits.
The attestation was fine. It was the electricity bill that was missing, and it was on the kitchen table.
Have your host sign the attestation by hand. They are the one attesting, not you.
Ask them at the same time for a recent bill in their name, under three months old.
File both documents together. On its own, the first is of no use.
No attestation to have signed. A bill in your name at that address is enough.
Read your lease and building rules again before receiving a client at home.
Your home address becomes public on the register. That is the price of free registration.
The person hosting you, by hand, after printing. They are the one attesting and authorising: an attestation signed by you would prove nothing. That is also why this form offers no on-screen signature, unlike our other documents.
Yes, and it is the most common omission. A copy of your host's proof of address, in their name and less than three months old: an electricity, water or telephone bill, a tax notice or a title deed. Without it, the attestation is not enough.
For registering your business, no: they attest to hosting you, which follows from their occupation of the home. Their own lease may however limit what they are allowed to do there, and it is for them to check before signing.
That is a different question, which this document does not settle. Registration is administrative; working at someone else's home depends on the lease, the building rules and, in towns of more than 200,000 inhabitants and the inner Paris suburbs, the construction and housing code.
It lasts as long as the arrangement does. If you move, you must declare your new registered office to the single window through a modification formality, and provide the proof matching the new address.
The paperwork is done. Next comes learning the craft.
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