01
The rule: carry forward first, a tax claim failing that
The Conseil d'État laid it down in CE, 28 December 2016, no. 385232, Société Icade Promotion Logement (reported in the tables of the Recueil Lebon): a taxpayer who, during a period in which it was sometimes in credit and sometimes in debit, declared more tax payable than it should have must carry the credit arising from that correction forward to its subsequent returns, and then claim a refund of the excess.
The administrative court of appeal had held the repayment claim inadmissible because no refund claim had been filed in the prescribed form. The Conseil d'État set that ground aside: the claim under article L. 190 of the LPF remains open for the debit months.
02
The 2026 clarification: carry-forward over the whole period
In CE, 22 July 2026, no. 504330, Société Caisse d'Epargne Normandie (reported in the tables), the tax authorities had split the period covered by the claim, 2013 to 2015, into sub-periods each ending with a debit month, set the excess credits of each sub-period against the tax paid for that last month only, and left the balance aside.
The Conseil d'État held that the unused balances should have been carried forward to the following sub-periods, to be set against the tax paid for the subsequent debit months. The judgment of the Paris administrative court of appeal of 14 March 2025 (no. 24PA02655) was set aside and the case remitted to it.
03
A worked example (hypothetical)
Month 1, credit position: correcting the VAT charged in error increases the credit by €100,000. Month 2, debit position: €40,000 paid. Month 3, credit position: the correction increases the credit by €10,000. Month 4, debit position: €50,000 paid.
Method set aside: €40,000 repaid for month 2 and €10,000 for month 4, i.e. €50,000; the €60,000 balance from month 1 is lost. Method upheld by the Conseil d'État: the €60,000 balance is added to the €10,000 of month 3 and set against the €50,000 of month 4, i.e. a total repayment of €90,000. The remaining €20,000 cannot be obtained through this claim: it falls under the carry-forward and refund route, subject to its own conditions and time limits.
04
What the firm checks
(i) The business's position, month by month, in debit or in credit, over the whole period, before and after correction. (ii) The route to follow: correcting returns, carrying forward and then claiming a refund, or a tax claim for the debit months, to be filed in principle no later than 31 December of the second year following the year in which the disputed tax was paid (LPF, art. R* 196-1, b) or, where the business is subject to a reassessment procedure, within a period equal to that available to the tax authorities (LPF, art. R* 196-3). (iii) The tax authorities' calculation: any unused credit balance is carried forward, until exhausted, to the subsequent debit months within the period claimed. (iv) If the claim is rejected, the time limit for bringing the case before the administrative court, which is the subject of this note.
The Conseil d'État did not rule on the other grounds of appeal, in particular the one concerning whether VAT reassessed at the end of the audit should be taken into account.