How to record a prepaid expense (CCA) in account 486
A step-by-step method to record a prepaid expense: time-based proration, the entry in account 486, the reversal at opening, and a worked example with prepaid insurance and rent.
Expert note: This article was written by our chartered accountancy firm. Information is current as of 2026. For a personalised review of your situation, contact us.
Quick answer. A prepaid expense (charge constatee d'avance, CCA) is an expense paid or booked in year N but consumed in N+1. At closing, you neutralise the portion relating to N+1 by debiting account 486 Prepaid expenses and crediting the relevant expense account, for the net-of-VAT amount. The entry is reversed at the opening of N+1.
In December you pay an insurance premium or a rent instalment that covers the first months of the following year. If you leave the whole cost in the expenses of the closing year, you penalise it with a cost it has not yet borne, and you distort your result. The prepaid expense (CCA) corrects exactly that. It is one of the most common closing adjustments, one of the simplest in principle, yet one where we see the most proration errors in files we take over.
This article breaks down the method: spot the expense straddling two years, calculate the N+1 share pro rata by time, post the entry to account 486, document it, then reverse it. With two worked examples.
Why a prepaid expense exists#
The mechanism rests on the matching principle (independence of accounting periods): each year should bear only the expenses that genuinely relate to it. This principle stems from the accounting obligations set by the French Commercial Code (art. L.123-12 et seq.) and underpins the French chart of accounts (ANC regulation no. 2022-06).
In practice, a payment becomes an expense of the year when the related good or service is consumed, not when the invoice is paid. An insurance premium paid on 1 October for twelve months is not a twelve-month expense for the year closing on 31 December: only three months have been consumed. The remaining nine months are a prepaid expense.
A receivable, not an expense#
Account 486 sits on the asset side of the balance sheet, among operating receivables. That is logical: at closing, you have paid for a service the supplier still owes you. This portion therefore appears on the balance sheet as an acquired right, no longer in the income statement.
Step by step: the recording method#
- Identify the expenses straddling two years. Review the sensitive expense accounts: insurance (616), rent and leases (613), subscriptions and maintenance, service contracts, prepaid advertising, royalties. Anything covering a period that runs past the closing date is a candidate.
- Determine the consumed period and the remaining period. Note the start date, end date and closing date. The N+1 share is the one running from the closing date to the end of the covered period.
- Calculate the net-of-VAT amount pro rata by time. Apply the proration to the net amount only. Deductible VAT was already recovered at the invoice date and does not enter the adjustment.
- Post the closing entry. Debit 486, credit the relevant expense account, for the calculated net amount.
- Document the calculation in the closing file (invoice, period, net base, proration).
- Reverse at the opening of N+1 to return the expense to the year that consumes it.
The adjustment entry and its reversal#
Here is the double movement, using an insurance premium (account 616) as the example. The amounts are illustrative.
| Date | Account | Description | Debit | Credit |
|---|---|---|---|---|
| 31/12/N (closing) | 486 | Prepaid expenses | 900 | |
| 31/12/N (closing) | 616 | Insurance premiums | 900 | |
| 01/01/N+1 (opening) | 616 | Insurance premiums | 900 | |
| 01/01/N+1 (opening) | 486 | Prepaid expenses | 900 |
At closing, you take 900 euros out of the expense account (the result of N improves accordingly) to park it on the asset side. At opening, you reverse it: the expense returns to burden N+1, which actually consumes the service. Account 486 is thus cleared, ready to receive the new prepaid expenses at the next closing.
Worked example: prepaid insurance and rent#
Take a year closing on 31 December N. Two invoices run into N+1.
| Expense | Net amount | Period covered | Months in N+1 | Proration | Prepaid expense (account 486) |
|---|---|---|---|---|---|
| Annual insurance premium | 1,200 euros | 01/10/N to 30/09/N+1 | 9 months (Jan to Sep N+1) | 1,200 x 9 / 12 | 900 euros |
| Quarterly rent | 3,000 euros | 01/12/N to 28/02/N+1 | 2 months (Jan and Feb N+1) | 3,000 x 2 / 3 | 2,000 euros |
For the insurance, of the twelve months covered, nine fall in N+1: the prepaid expense is 900 euros. For the quarterly rent, of the three months covered, two fall in N+1: the prepaid expense is 2,000 euros. At closing, you therefore debit account 486 for 2,900 euros in total (900 + 2,000), crediting accounts 616 and 613 respectively. The whole is reversed on 1 January N+1.
When the invoice straddles the closing date in an irregular way (non-round periods), use a proration in days rather than months: net amount times the number of N+1 days, divided by the total days covered. More precise, and easier to defend.
Prepaid expense, accrued expense, deferred income: do not confuse them#
Closing adjustments form a symmetrical family. Mixing them up reverses the meaning of the entry.
| Mechanism | Account | Situation | Effect on the result of N |
|---|---|---|---|
| Prepaid expense (CCA) | 486 (asset) | Expense already booked in N, consumed in N+1 | Reduces the expense of N |
| Accrued expense | 408 and related class 4 accounts | Expense of N not yet invoiced (invoice not received) | Increases the expense of N |
| Deferred income (PCA) | 487 (liability) | Income already invoiced in N, delivered or performed in N+1 | Reduces the income of N |
The prepaid expense and the accrued expense work as mirrors: the first removes from N an expense booked too early, the second adds to N an expense booked too late. Deferred income (account 487) is the symmetrical version of the prepaid expense, on the income side.
The tax stake: matching the expense to the right year#
The prepaid expense is not an accounting nicety, it is a condition for deductibility in the right year. An expense is deductible only for the year that genuinely bears it. If you deduct the whole of a prepaid payment, you anticipate an expense that does not relate to the year: this is precisely what the adjustment through account 486 corrects.
What the tax authority looks at#
The French tax authority checks the year of attachment of expenses (BOFiP, BIC-CHG series). Its logic: an expense attaches to the year in which the service is rendered or the good delivered, not to the year of payment. Consistency is also checked through the file of accounting entries (FEC), where the adjustment entries and their reversal must appear, dated and supported. A movement in account 486 with no calculation evidence is an easy weakness to flag.
Our chartered-accountant analysis#
Our reading#
The prepaid expense is an entry with low technical stakes but high stakes in rigour. The proration is trivial; what goes wrong is traceability. A dated worksheet linking the invoice, the period and the amount is worth more, in an audit, than the entry itself.
The underestimated risk#
Recently, while closing the accounts of a service SME, we took over a file where the prior-year prepaid expenses had never been reversed: account 486 had piled up year after year, inflating the assets by several thousand fictitious euros and lastingly distorting the result. The underestimated risk is not forgetting to record the prepaid expense, it is forgetting to reverse it. An unreversed prepaid expense is an expense that disappears from both years, and an asset that never unwinds.
In practice#
Work on the net-of-VAT amount, never the gross: deductible VAT was already recovered and has no place in the adjustment. Reserve prepaid expenses for material amounts: booking a few euros on a small subscription weighs down the closing without improving the truthfulness of the accounts. And automate the follow-up: on a ledger kept in a connected tool such as Pennylane, a schedule of recurring prepaid expenses (insurance, rent, annual subscriptions) prevents missed reversals. This discipline is part of the ongoing bookkeeping and review we provide within the firm.
Points to watch#
- A miscalculated prepaid expense simply moves the error from one year to the next: the proration must be right, not approximate.
- A prepaid expense is not a provision for risks and charges: the prepaid expense relates to a certain, already-paid charge; the provision to a probable charge not yet incurred.
- Managing prepaid expenses is part of the closing adjustments, alongside depreciation: it fine-tunes the result without manipulating the accounts.
Frequently asked questions
How do you record a prepaid expense?+
At closing, you debit account 486 Prepaid expenses and credit the relevant expense account (616, 613, etc.) for the net-of-VAT share relating to the following year. At the opening of N+1, you reverse the entry so the expense burdens the correct year.
Which account is used for a prepaid expense?+
Account 486 Prepaid expenses, on the asset side of the balance sheet among operating receivables. The counterpart is the original class 6 expense account: 616 for insurance, 613 for rent, and so on depending on the nature of the adjusted expense.
How do you calculate a prepaid expense?+
You apply a time-based proration to the net-of-VAT amount. Multiply the net amount by the number of days (or months) relating to the following year, then divide by the total period covered by the invoice. The result is the amount to post to account 486.
When should you use account 486?+
Whenever an expense paid or booked during the year covers a period running into the following year: annual insurance, prepaid rent, subscription, maintenance, royalty. Account 486 isolates the share not yet consumed at the closing date.
Should VAT be included in a prepaid expense?+
No. The adjustment is on the net-of-VAT amount. Deductible VAT was already recovered at the invoice date and is not affected by the prepaid-expense entry. Working on the gross amount would distort the figure posted to account 486.
What is the difference between a prepaid expense and an accrued expense?+
The prepaid expense removes from the year an expense booked too early (already paid, not yet consumed). The accrued expense adds to the year an expense incurred but not yet invoiced (invoice not received, account 408). Both correct the matching, in opposite directions.
What happens if you forget to reverse a prepaid expense?+
The expense disappears from both years: neutralised in N, never returned to N+1. Account 486 stays open with no unwinding, artificially inflates the assets and distorts the result. It is the most common error on this item: check at each opening that last year prepaid expenses have indeed been reversed.
Key takeaways#
- A prepaid expense neutralises the share of a payment made in N but consumed in N+1, in the name of the matching principle.
- The closing entry debits account 486 (asset) and credits the relevant expense account, for the net-of-VAT amount.
- The amount is calculated pro rata by time, in months or days, on the net base only.
- The entry must be reversed at the opening of N+1; the missed reversal is the most common error.
- Do not confuse it with the accrued expense (reverse mechanism) or deferred income (account 487, symmetrical on the income side).
- Document the calculation: the tax authority checks the attachment of expenses and its consistency through the FEC.
Official sources#
- BOFiP, year of attachment of expenses (BOI-BIC-CHG-10-30)
- BOFiP, attachment of expenses, general rules (BOI-BIC-CHG-10-30-10)
- French Commercial Code, art. L.123-12, accounting obligations (Legifrance)
- Accounting obligations of traders (service-public.fr)
- Text references: ANC regulation no. 2022-06 (French chart of accounts); independence-of-periods principle.
This article is kept up to date by the Hayot Expertise firm (Samuel HAYOT, chartered accountant and statutory auditor, registered with the Ile-de-France Order of Chartered Accountants). Updated on 17 June 2026. It informs on a general accounting rule; a specific situation (shifted closing date, multi-year expenses, chained adjustments) deserves a review of your documents and your file.
Article written by Samuel HAYOT
Chartered Accountant, registered with the Institute of Chartered Accountants.
Regulated French accounting and audit firm based in Paris 8, built to support companies across France with a digital and decision-oriented approach.
Sources
Official and operational sources cited for this page.
This topic is part of our service Bookkeeping in France | Review, close & tax filing
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