Optician zero co-pay: accounting for the 100 % Santé scheme
How to split and record a 100 % Santé optical sale: the statutory health insurance share, the complementary (OCAM) share paid through third-party payment, and the customer co-pay on the free basket. Posting method, receivables tracking and watch points.
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 100 % Santé optical sale splits into three collection flows to be recorded separately: the statutory health insurance share (AMO), the complementary share (OCAM) settled through third-party payment, and the customer co-pay. On basket A (class A), which took effect in optics on 1/1/2020, this co-pay is zero.
An optical store rarely collects the full price of a sale from the customer. Between the statutory health insurer's share, the complementary insurer's share and any amount paid in store, a single pair of glasses generates two or three separate receivables, each with a different settlement timeline. Keeping this set of accounts means, first, splitting each flow correctly, then tracking the third-party-payment receivables until they are collected.
This article goes down to the entries for each refund flow. To understand the general third-party-payment mechanism and the logic of the scheme, you can first read our article on the way third-party payment works in optics, which sets the framework we put to work here.
The 100 % Santé scheme in optics: what you actually invoice#
The 100 % Santé reform offers a zero-co-pay package (RAC 0) on a selection of equipment, grouped in basket A (class A). It took effect in optics on 1/1/2020. A customer who chooses class A equipment pays nothing: the full amount is covered by statutory health insurance and by the complementary insurer.
Basket B (class B), by contrast, stays at a free price. Its coverage depends on the customer's complementary contract, and a co-pay may remain. An optician usually sells both: the frame may fall under basket A and the lenses under basket B, or vice versa. That is why the customer invoice must already distinguish the lines, before any accounting.
| Item | Basket A (class A) | Basket B (class B) |
|---|---|---|
| Customer co-pay | 0 € (RAC 0) | Variable, contract-dependent |
| Price | Capped (frame price limit 30 € or less) | Free |
| Funding | AMO + OCAM up to RAC 0 | AMO + OCAM + possible co-pay |
| Accounting issue | Two third-party-payment receivables | Two receivables + customer collection |
A useful point on the AMO/OCAM split. The often-quoted ratio (60 % AMO, 40 % OCAM) applies to the reimbursement base (BRSS), which is very low in optics: around 2.84 € for a frame and 2.29 € to 24.54 € for adult lenses depending on the correction. The complementary insurer then tops up to the price limit to reach RAC 0 on basket A. These base amounts come from the list of products and services (LPP) and are worth cross-checking against the current orders before any fine-tuning of your software.
The three flows of an optical sale to record#
Whatever the basket's composition, an optical sale breaks down into collection flows that must be isolated from the invoicing stage. Our firm's reading: the quality of an optician's accounting is decided 90 % on this split at the point of sale, not at reconciliation.
- The AMO share: the receivable on statutory health insurance, transmitted electronically. It equals the reimbursement base times the coverage rate.
- The OCAM share: the receivable on the complementary organisation (the mutual insurer), settled through third-party payment. Here, the OCAM is a payer, not a tax.
- The customer co-pay: nil on basket A, it may exist on basket B and is paid in store (cash, card, cheque).
The net revenue of the sale is single: it is then split among these three debtors. In accounting terms, you record one revenue item (class 70 account) for the net total, the output VAT, and as the offset, as many third-party accounts as debtors.
Posting method: isolate each debtor#
The French General Chart of Accounts does not impose a dedicated chart for optics. The method we apply in client files is to subdivide the customers account (411) so as to track each type of third-party-payment receivable separately. This makes reconciliation and cash-flow monitoring easier.
| Account (suggested subdivision) | Use |
|---|---|
| 411 - Customers (co-pay) | Share paid by the customer in store |
| 411 - Third-party receivables AMO | Statutory health insurance share |
| 411 - Third-party receivables AMC/OCAM | Complementary share via third-party payment |
| 707 - Sales of goods | Net revenue of the sale |
| 44571 - Output VAT | VAT at the applicable rate |
At the sale, the entry debits the three third-party accounts (AMO, OCAM, customer) for their gross share and credits revenue and output VAT. As each share is collected, you clear the relevant third-party account by crediting it against the bank account. This directly applies the matching principle and the third-party tracking of the chart of accounts.
For reliable processing, a Pennylane accounting software connected to your till and your bank account automates much of the reconciliation. But the per-debtor split must be set up from the outset, otherwise automation simply propagates the imprecision.
Tracking third-party-payment receivables: the real cash-flow issue#
The underrated risk is not the sales entry, it is the collection. The AMO and the OCAMs refund within variable timelines, and part of the claims can be rejected (NOEMIE-type transmission rejections, rights anomalies, unrecognised contracts). As long as a third-party-payment receivable is not matched, it remains an asset that has not yet reached your cash.
In optician files, the most frequent friction point is the build-up of small unmatched OCAM receivables, for lack of regular reconciliation between the organisations' statements and the transfers received. After a few months, the 411 account dedicated to the OCAM swells without anyone knowing whether those amounts will be settled.
- Reconcile each AMO and OCAM transfer with the third-party-payment statements, at least monthly.
- Identify and reprocess rejections without waiting for the year-end, as recycling deadlines are tight.
- Match the dedicated 411 accounts to bring out the receivables genuinely outstanding.
- Provision, where relevant, old receivables whose recovery becomes doubtful.
- Monitor the average collection time by type of payer (AMO, OCAM, customer).
A Qonto business account with categorisation of incoming transfers helps quickly trace the source of refunds, which speeds up reconciliation.
Common case: a mixed basket A and basket B sale#
Recently, the owner of an optical store approached us because his third-party-payment customers account never cleared and was distorting his cash-flow reading. Reviewing his sales, the diagnosis was simple: a class A frame and class B lenses sold together, all recorded on a single global customer account. It was impossible to know what was owed by statutory health insurance, by the mutual insurer or by the customer.
In practice, the fix was to: split each invoice line by basket, open three subdivisions of the 411 account (AMO, OCAM, co-pay), redo the matching debtor by debtor, then set up a monthly reconciliation of the statements. Once cleaned, the OCAM account revealed unprocessed rejections that had slipped past attention for several months.
This kind of clean-up falls under the bookkeeping and review of a sector file, where knowing the refund circuit saves considerable time.
2026 watch points#
Two confusions come up often and deserve to be cleared up plainly.
The first concerns the supposed "OCAM tax". There is no OCAM tax for the optician to record. The OCAM is the complementary health insurance organisation, i.e. the mutual insurer that pays part of the sale through third-party payment. The tax that does exist is the additional solidarity tax (TSA), set out in article L862-4 of the Social Security Code. It is owed by the complementary organisations themselves, on the premiums of their health contracts. It therefore never appears in the optician's accounts.
The second concerns capped prices. Basket A is subject to price limits, with a frame at 30 € or less, and lenses capped by type. These caps are set by order and change: before configuring your prices or freezing an amount in a procedure, cross-check the values in force against the list of products and services and the pricing orders.
Our firm is registered with the Ordre des experts-comptables of Île-de-France, which governs the engagement to present your accounts and the attestation that concludes it. For the tax issues specific to your structure, see also our tax monitoring of your business, and more broadly our accounting support for opticians.
Frequently asked questions
How do you account for a 100 % Santé sale?+
You record a single net revenue item and the output VAT, then split the offset across three third-party accounts: the statutory health insurance share, the complementary share via third-party payment and the customer co-pay. On basket A, the latter is zero.
Who pays the co-pay in optics?+
On basket A (class A) equipment, the co-pay is nil: the sale is funded by statutory health insurance and by the complementary insurer up to zero co-pay. On basket B, at a free price, a co-pay may be paid by the customer in store depending on their contract.
How do you record an optician's mutual insurer refund?+
The mutual insurer (OCAM) transfer clears the matching third-party-payment receivable. You credit the dedicated AMC/OCAM third-party account against the bank account, then match the transaction with the original invoice to clear the receivable and make your cash position reliable.
What is the OCAM tax in optics?+
There is no OCAM tax to record at the optician's. The OCAM is the complementary organisation that pays part of the sale through third-party payment. The tax applying to complementary insurers is the additional solidarity tax (TSA), article L862-4 of the Social Security Code, borne by the mutual insurers, not by the optician.
Should you subdivide the customers account for third-party payment?+
The General Chart of Accounts does not require it, but it is strongly advised. Subdividing the 411 account between AMO, OCAM and co-pay lets you track each receivable, speed up reconciliation with statements and spot rejections before year-end, which secures your cash-flow reading.
Which VAT rate applies to an optical sale?+
Optical equipment is goods subject to VAT at the rate in force. The structure of the third-party-payment entries stays the same whatever the rate: you collect VAT on the revenue, then split the gross total among the three debtors. Cross-check the applicable rate before configuring your software.
Key takeaways#
- A 100 % Santé sale splits into three flows: the AMO share, the OCAM share via third-party payment and the customer co-pay.
- On basket A (class A), the co-pay has been zero since 1/1/2020 in optics; basket B stays at a free price.
- Subdivide the customers account (411) by debtor to track third-party-payment receivables and speed up matching.
- The real issue is collection: reconcile the AMO/OCAM statements monthly and reprocess rejections without waiting for year-end.
- There is no "OCAM tax" to record; the TSA (article L862-4 of the Social Security Code) is borne by the complementary insurers.
- This article is for information; an entry tailored to your software and your third-party-payment contract requires a review of your file and of the rules in force.
Sources officielles#

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.
- Service-public.fr - Le 100 % Santé (panier sans reste a charge)
- Ameli.fr - 100 % Sante en optique
- BOFiP - Plan comptable general, comptes de regularisation
- Legifrance - Code de la securite sociale, art. L862-4 (TSA)
- Legifrance - Plan comptable general (ANC reglement 2014-03)
- Legifrance - Ordonnance n 45-2138 du 19 septembre 1945 (profession d'expert-comptable)
- Ameli.fr - Le tiers payant
This topic is part of our service Bookkeeping in France | Review, close & tax filing
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