Depends a bit on what sort of business you're running. If you're really just topping up the pension, you may want to look into registering as an auto-entrepreneur. It really simplifies the record keeping, since you just pay a flat percentage of your take to cover cotisations and income taxes. I'm not sure if they give you a SIRET or some other sort of registration number under the auto-entrepreneur scheme.
Assuming the take is within the limits of the auto-entrepreneur thing, you could also just report your income as a mini-BIC or mini-BNC (the BIC is "commercial", a BNC is "non-commercial"). Again, taxes are simply a percentage. You take no deductions, expenses and you don't have to get involved with VAT. Going that route, you definitely don't need a SIRET.
Cheers,
Bev
Assuming the take is within the limits of the auto-entrepreneur thing, you could also just report your income as a mini-BIC or mini-BNC (the BIC is "commercial", a BNC is "non-commercial"). Again, taxes are simply a percentage. You take no deductions, expenses and you don't have to get involved with VAT. Going that route, you definitely don't need a SIRET.
Cheers,
Bev
