The flat rate is one of the biggest reliefs for someone starting out as self-employed: a reduced monthly Social Security contribution during the first months of activity, well below what would apply under the general income-based contribution system. But it comes with requirements and limits worth knowing so you don't get caught off guard.
Who is entitled to the flat rate
Generally, it's available to people registering as self-employed for the first time, or to those who haven't been registered under the RETA self-employed regime within a recent prior period (the required period of not having previously contributed varies depending on the regulations in force at any given time). It isn't, therefore, an exclusive benefit for those who've never been self-employed before, but also for those resuming activity after a sufficient break.
How long the flat rate lasts
The standard duration is 12 months at the reduced rate. There's also the option to extend that reduced rate (though at a somewhat higher amount than the initial one) for an additional 12 months, if during the first year your net income stays below the Minimum Interprofessional Wage. If your income exceeds that threshold during the first year, the extension doesn't apply and you move directly to the contribution system based on real income brackets once the first 12 months end.
What happens if your actual income exceeds what was expected
The self-employed contribution system, based on brackets tied to actual net income, involves a later adjustment: if your actual income for the year ends up higher than what you estimated when choosing your contribution base, you may have to pay a difference once your situation is reconciled against the final tax data for the year. This also affects, though differently, those enjoying the flat rate, since certain requirements for accessing and keeping specific discounts can depend on the actual income ultimately declared.
The flat rate doesn't exempt you from filing taxes
A common mistake is thinking the flat rate also reduces your tax obligations with the Tax Agency (VAT, income tax). That's not the case: the flat rate affects only your Social Security contribution. Your obligations to file quarterly VAT returns and make installment payments toward income tax (if applicable to your regime) remain the same from day one of your activity, regardless of the reduced contribution you're paying to Social Security.
Additional discounts for certain groups
There are additional discounts on the contribution for certain groups (people with disabilities, victims of gender violence, self-employed workers residing in low-population-density municipalities, among others), which can extend the duration or improve the amount of the flat rate compared to the general conditions.
Plan your first year as self-employed
Making the most of the flat-rate period to establish your activity is key. Our net salary calculator, though originally designed for employees, can serve as a reference to compare how much net income you'd get with a salary equivalent to what you expect to invoice.