France Requires Full Carry-Forward of VAT Credits When Correcting Overpaid VAT

Summary 

• France’s Council of State has clarified how VAT credits must be applied when calculating a refund of VAT paid in error. Unused credits must be carried forward and offset against VAT payable throughout all subsequent months covered by the refund claim, rather than being confined to shorter administrative segments. 

• The case involved a bank that had incorrectly charged VAT on fees connected with deceased customers’ accounts and alternated between payable and credit positions. The tax authority’s segmented calculation risked understating the refundable amount because residual credits were not carried into later months within the claim period. 

• Businesses correcting output VAT over multi-period claims should reconstruct the VAT account chronologically. Calculations should preserve every opening and closing credit balance, apply credits to later liabilities in sequence and reconcile the result to filed returns, corrections, customer adjustments and any amounts already repaid or offset. 

Article 

The French Council of State has clarified the calculation of VAT refunds where a taxpayer corrects VAT that was paid in error over a period containing both payable and credit positions. Decision No. 504330, published on 22 July 2026, concerned a bank that had incorrectly charged VAT on fees associated with deceased customers’ accounts. 

The bank’s VAT position fluctuated across the relevant months. Some periods produced VAT payable, while others generated excess input VAT credits. In calculating the refund, the tax authority divided the overall period into shorter segments. It applied the available credit only against VAT payable in the final month of each segment and did not carry unused credit forward into subsequent months covered by the claim. 

The Council of State rejected that methodology. When determining the amount of VAT overpaid and potentially refundable, unused VAT credits must be carried forward and applied against VAT payable during all later months within the period addressed by the refund request. Artificially stopping the credit at a segment boundary can understate the amount ultimately recoverable. 

The judgment is important for banks, insurers and other partly exempt businesses, but the calculation principle is relevant more broadly whenever historic VAT corrections span multiple return periods. A proper reconstruction should follow the taxpayer’s VAT account month by month, preserving opening balances, current-period VAT, available credits, offsets, payments and closing balances. 

Operationally, businesses should avoid preparing correction claims as isolated monthly snapshots. The supporting schedule should demonstrate how each credit arose and how it was carried into later periods. It should also reconcile to original VAT returns, amended filings, ledger balances and payments. Where incorrectly charged VAT is being corrected, the business must separately ensure that customer invoices have been corrected and that there is no residual risk of tax loss. 

The decision does not mean that every amount incorrectly invoiced is automatically refundable. The substantive and procedural conditions for correcting VAT remain applicable, including limitation periods and evidence requirements. Its significance lies in the arithmetic once a correction is accepted: the tax authority must respect the continuing nature of VAT credits across the whole claim period rather than using a segmentation method that prematurely extinguishes residual balances. 

Source Links 

• French Council of State, Decision No. 504330 (22 July 2026) 

---

---