Each tool in this section answers one question, but none tells you which one to begin with. Yet the two most expensive deadlines of a first year start running from your declaration: sixty days to apply for ACRE, and 31 December for the business property tax.
You will answer four questions, and you will know what is left to do, what is already behind you, and what does not concern you.
This answer drives everything else: what is still ahead of you, what is already done, and above all the two deadlines that start running from your declaration.
Information verified on October 1, 2026. Indicative calculator with no legal force. The figures it applies are taken from official sources and dated: only your tax notice and the tax authorities are binding.
The official pages where we read the rules and amounts applied here.
The start-up relief lightens your contributions, but you only get it by applying, within 60 days of the start date declared at the single window. After that, it is lost. Once granted, it runs until the end of the third calendar quarter following your start: nine to twelve months depending on the date, never a full twelve.
The initial return, form 1447-C, is filed before 31 December of your year of creation. That year you pay nothing: it is exempt. The first charge falls the following year, with a balance due on 15 December.
When you have just registered, the option can be filed until the last day of the third month following the month of creation. Once that window has passed, it is requested before 30 September and only applies from the following year: it is never taken mid-year.
Receiving electronic invoices has been required of every business since 1 September 2026, and the VAT exemption does not release you from it. A micro-entreprise only has to issue them from 1 September 2027.
The plan removes the steps that do not concern you, and says why. Three can drop out:
| Step | Deadline |
|---|---|
| ACRE application | 60 days after the start of activity |
| Flat-rate tax option | End of the 3rd month after creation |
| Initial CFE return (1447-C) | 31 December of the year of creation |
| First CFE to pay | 15 December of the following year |
| Receiving electronic invoices | Since 1 September 2026 |
| Issuing electronic invoices | 1 September 2027 for a micro |
We do not ask for your start date, so these deadlines are given as rules. The timeline on the tools page works them out to the day from yours.
Before setting up a micro-entreprise, three questions come first: how far the scheme can take you, what you will keep once the deductions are paid, and whether you are entitled to ACRE. Then come the business address and the description of your activity, and finally the declaration on the single window, formalites.entreprise.gouv.fr.
ACRE must be applied for within 60 days of the start date declared at the single window. After that, the relief is lost. It then runs until the end of the third calendar quarter following your start, so nine to twelve months depending on the date.
A business's year of creation is exempt from the CFE, but the initial return, form 1447-C, must be filed before 31 December of that year. The first charge falls the following year, with a balance due on 15 December.
When you have just registered, the flat-rate tax option can be filed until the last day of the third month following the month of creation. After that, it is requested before 30 September and only applies from the following year. It also requires your household's reference taxable income to stay under a ceiling, which the eligibility check verifies.
An already registered micro-entrepreneur finds what follows the declaration: ACRE, CFE, insurance, quotations, invoicing, VAT, pension. The earlier steps stay listed separately, under “What is already behind you”, so you can catch up on any that was missed.
The paperwork is done. Next comes learning the craft.
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