Definition
Julien lays parquet floors and runs his business as a micro-entreprise.
Sarah, his partner, answers the phone, prepares the quotations, chases the clients and collects materials on Saturdays.
She is neither an employee nor a partner, and she issues no invoice: she helps.
Three years later, those hours have opened no rights in her name, and an inspection would file them under a heading the couple never chose.
The conjoint collaborateur (collaborating spouse) is the status designed for exactly that situation: the married spouse, PACS partner or cohabiting partner who takes a regular part in the business, without pay and without being a partner in it.
They are neither an employee nor the business owner: they work inside someone else's business, under a status of their own. Because the micro-entreprise is a Sole proprietorship, there are no shares to divide: the conjoint associé status, which exists in companies, has no equivalent here.
The real choice is between collaborateur and salarié, collaborating spouse or employed spouse.
What the flat-rate contribution does not cover
Julien collects €60,000 in 2026 from craft services, taxed under the BIC category (bénéfices industriels et commerciaux, industrial and commercial profits).
His Social contributions are calculated at 21.2% in 2026, so €12,720.
On top of that come the Vocational training contribution at the 0.3% rate owed by craftspeople in 2026, so €180, and the chamber of trades levy, 0.48% in 2026 outside Alsace-Moselle, so €288.
In total, €13,188 goes to URSSAF for the year, not the €12,720 of the headline rate alone. And none of those three rates covers income tax, which is worked out separately.
That total covers Julien only. Once declared as a collaborating spouse, Sarah contributes in turn, on a contribution base of her own, chosen at the time of declaration among the options set by regulation, and her contributions are added to Julien's.
Julien's contribution rate does not move, the revenue declaration does not change by a single euro: the status adds a line to the household budget, it does not split the one that already existed.
The available bases and their cost appear in the business owner's URSSAF account, and that is where to look before signing anything.
Working as a pair doubles neither the ceiling nor the income
The Turnover threshold follows the business, never the number of people working in it. For a service activity or a liberal activity, it stands at €83,600 for the years 2026 to 2028.
With two people, it is still €83,600 over that same period. Many pages still display €77,700, the figure for the 2023-2025 period: it has been out of date since 1 January 2026, but neither version multiplies by the number of people in the workshop.
Income follows the same logic.
The profit of the business is taxed in Julien's name alone: with the 50% flat-rate allowance applying to BIC services in 2026, his €60,000 collected produce €30,000 of taxable income, carried onto the household tax return.
Sarah has no income of her own to declare for her work in the business, since the status assumes no pay.
That is the trade-off built into the scheme, and it is what separates it most sharply from employment.
Collaborating spouse, employed spouse, or nothing at all
Declaring nothing is not a neutral option. A spouse who takes a regular part in the business must be declared under one of the available statuses.
Failing that, the commercial code deems them an employed spouse, with the employment contract and the payroll contributions that go with it: what the couple thought they were avoiding becomes the default position, and an inspection can rebuild it over past years.
In the meantime, the spouse builds up no rights of their own for those hours.
The declaration is the business owner's responsibility and is filed at the One-stop shop, either at registration or later through a modification filing.
In exchange for the contributions, the collaborating spouse builds rights of their own: Basic state pension and supplementary pension, invalidity and death cover, daily sickness benefit and maternity entitlements.
That is the whole difference with having no status, where the same hours build nothing and allow no Pension quarter validation.
Three points to weigh before choosing. Occasional help is not targeted: it is regular participation that triggers the obligation.
As soon as pay is involved, the collaborating spouse status gives way to employment, with a payslip and a contract.
Finally, the status is open only for a limited period across a whole career, after which the spouse must move to another status: the exact duration and its conditions should be checked on the official administration site before committing.
Often, two people each practising their own trade are better served by each opening a micro-entreprise: two registration numbers, two ceilings, two sets of social cover.
Frequently asked questions
My spouse helps a few hours a month: is a status required?
The trigger is regular participation in the business, not the number of hours taken in isolation.
One-off help creates no obligation, but a settled presence in how the business runs, even part-time, calls for a declared status.
Where there is doubt, the question goes to URSSAF before an inspection, not after one.
Does a collaborating spouse raise my revenue ceiling?
Never. The ceiling is assessed at business level: €83,600 for a service or liberal activity for the years 2026 to 2028, whether you work alone or as a pair.
If the volume of work outgrows what the micro-entreprise can carry, it is the tax scheme that has to be reconsidered, not the spouse's status.
Are their contributions added to mine, or do they replace them?
They are added.
The flat rate calculated on your revenue covers your own social protection alone, and the collaborating spouse contributes on a separate basis in order to open separate rights.
The household budget therefore has to absorb two sets of contributions, calculated independently of each other.
Should I declare my spouse, or should they open their own micro-entreprise?
It depends entirely on what they do.
If they practise a trade they could invoice to their own clients, their own micro-entreprise gives them a separate ceiling, full rights and an independence the collaborating spouse status does not provide.
If they work only inside your activity, with no clients of their own, the collaborating spouse status is the framework built for it.