Pay-As-You-Earn for the Self-Employed: Instalments and Adjustments
Pay-as-you-earn also concerns the self-employed — but differently from employees. With no employer to withhold tax on a payslip, you pay it as instalments taken directly by the tax administration. Understanding this mechanism avoids cash-flow surprises and lets you adjust it to your actual activity.
The principle: instalments calculated by the tax office
For a self-employed person, pay-as-you-earn takes the form of instalments (called "acomptes contemporains") calculated by the administration on the basis of your latest income declaration. These instalments are taken automatically from your bank account:
- monthly, each month;
- or quarterly, by option, in four payments.
The rate applied is your personalised withholding rate, visible on your impots.gouv.fr account. This rate is recalculated each year after your income declaration (see declaring your micro-enterprise income).
A lag to understand
The current year's instalments are calculated on the previous year's income. If your activity grows strongly, your instalments will be underestimated, and an adjustment will occur the following year — hence the importance of setting money aside. Conversely, a drop in activity leaves instalments too high.
Key takeaway: your instalments reflect your tax past, not your present. On fast-growing activity, set aside beyond the instalment to absorb the adjustment.
The first year: often no instalment
In your first year of activity, the administration has no reference income: you therefore generally have no instalment to pay that year. This is a welcome cash-flow comfort at the start… but a trap if you do not anticipate it.
Indeed, the tax on your first income will be claimed the following year, once your first declaration is made. Many new self-employed, having paid nothing the first year, are surprised by substantial instalments in the second. The remedy: set aside the equivalent of your future tax from the first euro collected.
Adjusting your instalments: an underused tool
You can adjust your instalments in real time from your impots.gouv.fr account, without waiting for the annual declaration:
- Upwards, if your activity booms, to avoid a painful adjustment.
- Downwards, if your activity slows, so as not to tie up cash unnecessarily.
This adjustment is a real management lever, too often ignored. It brings the tax paid closer to your actual income.
Pay-as-you-earn or flat-rate income tax?
Be careful not to confuse two mechanisms:
| Instalments (pay-as-you-earn) | Flat-rate income tax | |
|---|---|---|
| Who | Any self-employed taxed on the scale | Micro-entrepreneur by option |
| Calculation | Personalised rate on past income | Fixed rate (1% / 1.7% / 2.2%) on revenue |
| Payment | Monthly/quarterly withdrawal | Alongside URSSAF contributions |
If you opted for the flat-rate income tax, you pay no pay-as-you-earn instalments on this income: the tax is already settled as you go. To understand this trade-off, see micro-enterprise charges.
Pay-as-you-earn for the self-employed is above all a cash-flow matter. Anticipate the second-year adjustment, adjust your instalments to your activity, and always set money aside. Our guide managing irregular cash flow helps you never be caught short.