Deductible provisions: the rules the tax authorities check in 2026

Quick answer. A provision is only deductible for corporate income tax if it covers a loss or expense that is itself deductible, clearly defined, probable (not merely possible) and arising from events in progress at the closing date (article 39, 1, 5° of the French General Tax Code). It must also appear on the statement of provisions (form 2056) attached to the income tax return. Failing that, the failure to file this statement is sanctioned by the fine under article 1763 of the General Tax Code, at a rate of 1% of the amounts where they are actually deductible (the usual case), and 5% only for amounts that are not actually deductible.

At every year-end, the same temptation returns: booking a provision to absorb a result that looks a little too comfortable, or anticipating a risk you can sense coming. That is legitimate from an accounting standpoint, where prudence requires recognising a probable loss. But for tax purposes, provisions are one of the most heavily audited items. An accounting-justified provision is not always tax-deductible, and the gap is paid for at audit time, as a reassessment plus late-payment interest.

A director's real question is therefore not "am I allowed to book a provision?" but "will this provision hold up against the tax authorities?". Here are the conditions the authorities actually check, the provisions that rarely survive, and what to document from the closing date.

Article 39, 1, 5° of the General Tax Code sets the foundation. A provision is only deductible if it meets, at the closing date, three cumulative substantive conditions.

Our chartered accountant's view: the condition that defeats the most provisions on audit is not probability, but valuation. A provision set "by feel", with no calculation file, is highly exposed. Conversely, a more modest provision backed by a quote, a letter, a formal notice or a schedule resists far better. Deductibility is won through evidence, not through amount.

In audited files, certain categories of provisions recur systematically among the grounds for reassessment. Knowing them helps you calibrate your year-end close.

• The provision for a purely possible risk. A contemplated but not yet commenced dispute, a "possible" audit, a diffuse commercial risk: as long as the event is not in progress at the closing date, the provision is not deductible.
• The self-insurance provision. Building a reserve for losses you would cover yourself, without any commitment to a third party, gives no right to deduction: it is a disguised reserve.
• The major-maintenance provision without a precise commitment. Anticipating a major repair is possible in accounting, but tax deduction requires a precise, documented multi-year programme.
• The paid-leave provision in certain cases. It is deductible, but its regime and adjustments are sensitive: this is an item to secure rather than improvise.
• The flat-rate provision for doubtful receivables. A percentage applied across the whole customer balance is in principle rejected; the deduction must be justified receivable by receivable.

To place these provisions in the overall accounting framework, see our article on provisions for liabilities and charges in accounting, and our note on extra-accounting add-backs and deductions that neutralise a rejected provision for tax purposes.

The underestimated risk: the sound but undocumented provision#

The most frequent risk is not the abusive provision, it is the justified provision you cannot justify. A loss is real, the risk is probable, but the file contains no calculation, no document, no note. On audit, the authorities do not challenge the principle: they challenge the absence of evidence at the closing date. Deductibility is assessed at the closing date, on the facts known at that date. Reconstructing the justification two years later, after the fact, is always weaker.

The provision for impairment of a customer receivable is the most common, and the one where directors are most often mistaken. It is only deductible if the probable loss is justified by precise facts at the closing date: reminders that went unanswered, proceedings commenced, the customer's judicial reorganisation or liquidation, a serious dispute.

Two recurring mistakes:

• Providing for a mere payment delay. A late customer is not a doubtful customer. Without proven difficulty, the provision is merely possible and therefore not deductible.
• Applying a flat rate. Providing for "10% of receivables over 90 days" is a statistical approach, in principle set aside. The provision must rest on the individual review of each at-risk receivable.

The provision is calculated on the amount of the receivable excluding VAT, since VAT is in principle recoverable separately when the final loss is recognised. For what comes next, when the doubt turns into a certain bad debt, see our article on debt recovery.

A provision is not a deduction acquired once and for all. When it becomes purposeless (the risk does not materialise, the expense is ultimately borne, the dispute is settled), it must be reversed, and that reversal constitutes taxable income of the year in which it is written back.

Two situations to distinguish:

This is a major point to watch: a provision is, in essence, only a timing shift of taxation, not a permanent saving. It moves an expense from one year to another. That is useful for cash flow and for true and fair accounts, but it is not a lasting lever for reducing corporate income tax. To understand the effect on the tax charge, see our reminder of the corporate income tax rates in 2026.

A deductible provision must also be correctly declared. Provisions appear on the statement of provisions (form 2056) attached to the income tax return, whose filing is required by article 53 A of the General Tax Code under the standard actual-profit regime.

The precise point to know: the failure to file this statement, or its inaccurate or incomplete nature, is sanctioned not by a surcharge but by a tax fine under article 1763 of the General Tax Code. Its rate is 1% of the amounts concerned where they are actually deductible, which is the usual case for properly constituted provisions. The 5% rate applies only to amounts that are not actually deductible.

Two useful qualifications, set out in article 1763 II of the General Tax Code:

• the fine does not apply, for a first infringement committed during the current calendar year and the three preceding years, where the taxpayer has corrected the omission spontaneously or within thirty days of a first request from the authorities;
• the fine sanctions the filing failure (the absence or inaccuracy of the statement), which is distinct from the substantive question of the deductibility of the provision itself.

Our view: the issue with this obligation is less the fine, often modest on deductible provisions, than traceability. A statement of provisions kept rigorously, year after year, is precisely what allows you to track the charges and reversals and to demonstrate, on audit, that each provision was reversed at the right time.

What the authorities look at#

During an audit, the review of provisions follows a constant logic. The authorities first check that the anticipated expense was itself deductible, then that the risk was probable and defined at the closing date, and finally that the justification existed at that date (and was not reconstructed since). They also check the fate of provisions from prior years: an old provision never reversed although the risk has disappeared is a classic signal. Keeping a multi-year follow-up of provisions means anticipating exactly what the auditor looks at. For a preventive approach, the tax compliance review and audit helps secure these items before any visit.

In year-end files, the typical scenario is this: a director wishes to provide for a dispute with a former employee whom they "sense" will bring a claim before the labour tribunal. As long as no proceedings have commenced at the closing date, the risk remains possible and the provision is not deductible. If, on the other hand, the claim was filed before the closing date, with a quantified demand and a risk analysis by counsel, the provision becomes defensible, up to the probable and documented loss. The same expense moves from "non-deductible" to "deductible" based solely on whether the event is, or is not, in progress at the closing date. That is the whole point of timing.

1. For each provision, check that the anticipated expense is itself deductible.
2. Build a dated calculation file: quote, letters, formal notice, schedule, counsel's analysis.
3. Date the risk: make sure it arises from events in progress at the closing date, not from a future fear.
4. For receivables, reason receivable by receivable, on the amount excluding VAT, and ban the global flat rate.
5. Report each provision on the statement of provisions (form 2056) and keep its multi-year follow-up.
6. Reverse without delay any provision that has become purposeless: a forgotten old provision attracts an audit.
7. Keep the justification as at the closing date: that, and not a later reconstruction, is what will be examined.

To frame the year-end close as a whole, see our year-end closing checklist. To secure the deductibility of your provisions and the consistency of your tax return, discover our corporate tax support and our bookkeeping and review engagement.