Your salary will increase or decrease in September

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The start of the school year could bring some surprises on your pay slip. From September, your net salary may experience variations, both upwards and downwards . At issue? The mechanism of the levy at the , which is automatically adjusted according to your last tax return. Deciphering this change which will affect many French people.

The puzzle of the new levy rate

Every year, it’s the same ritual. The tax authorities recalculate your withholding tax rate based on your latest tax return. This rate, applied to your monthly income, determines the amount deducted directly from your salary. And that’s where things get complicated for September.

Your situation has changed? Your salary too!

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Several factors can influence this famous rate. A pay rise, a change in family situation or the arrival of a new child are all factors that come into play. If your income increased last year, expect to see your tax rate increase. Conversely, a decrease in income could earn you a more lenient rate.

The new rate, implacable until next summer?

Once calculated, this new rate is applied automatically. No need to do anything, your employer receives the information directly from the tax authorities. And this rate will remain in effect until August 2025, unless you request a change.

Because yes, you have the possibility to act. If you feel that this new rate does not correspond to your current situation, you can request an adjustment. Go to your personal space on the tax website and follow the procedure to update your rate. An option not to be overlooked if your income has changed considerably since your last declaration.

The personalized rate, the standard… but not an obligation

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By default, the tax authorities send your employer a personalized rate. This takes into account all of your income and your family situation. This is generally the most advantageous option for the majority of taxpayers.

But did you know that there is an alternative? You can opt for a non-personalized rate. In this case, your employer applies a scale that only takes your salary into account, without considering your other income or your family situation.

Why choose this option? It may be interesting if you have significant additional income and you prefer to keep this information confidential from your employer. Be careful, however, this choice may require you to pay a supplement directly to the tax authorities if the non-personalized rate turns out to be lower than your actual rate. Additionally, understanding your rights regarding protecting workers in at-will states can help you navigate any potential issues that may arise from disclosing financial information to your employer.

Anticipate to better manage your budget

Faced with these potential changes, the best strategy remains anticipation. Don’t wait until you receive your September pay slip to react. From now on, you can check your current rate on your latest pay slip, consult your personal space on impots.gouv.fr to find out your new rate and simulate the impact on your net salary with the tax authorities’ online tools

Armed with this information, you can adjust your budget accordingly. In any case, keep in mind that this withholding tax system aims to stick as closely as possible to your actual situation. While it may sometimes seem restrictive, it actually saves you from unpleasant surprises when it comes to the annual regularization.

• The withholding tax rate changes in September, impacting your net salary
• This new rate, based on your last declaration, applies automatically until August 2025
• You can request an adjustment if your situation has changed, or opt for a non-personalized rate

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