Optician accounting in 2026: third-party payment, 100% Santé and VAT

Direct answer. An optician (opticien) invoices eyewear and contact lenses at the standard 20% VAT rate — no reduced rate applies. The patient's share and the mutual insurer's share are collected on a deferred basis through the third-party payment (tiers payant) system. The business model turns on managing receivables from the National Health Insurance fund (CPAM — Caisse primaire d'assurance maladie) and supplementary insurers (OCAMs), and on complying with the 100% Santé obligation (zero patient copay under Tier A since 2020). Accounting must therefore track the actual timing of patient transactions and third-party settlements rather than simply when cash arrives.

The 100% Santé reform that came into force on 1 January 2020 created two product tiers: Tier A (zero patient copay) and the free Tier (no price caps, patient copay possible). Opticians are required to offer at least one 100% Santé product and to recommend it to patients. This regulatory framework directly affects billing, receivables management and cash flow.

VAT on eyewear has remained at the standard rate of 20% since 2020 — a critical point that continues to catch opticians out, owing to a widespread but mistaken belief that a reduced rate applies.

In 2026, as since 2020, the VAT exemption threshold (franchise en base de TVA — €85,000 for goods sales) is unlikely to apply to a typical optician's shop, whose turnover comfortably exceeds that ceiling. Standard VAT accounting therefore applies, with VAT collected on each sale and declared in full.

Third-party payment (tiers payant) is the system by which the patient pays only any outstanding copay, while the mandatory benefit portion (CPAM) and the supplementary cover portion (mutual insurer / OCAM) are paid directly to the optician.

From an accounting standpoint, this creates three distinct flows:

1. Sales recognition: when eyewear is handed over, the optician records revenue (chiffre d'affaires) and collects 20% VAT on the full invoice amount — covering the patient's share, the CPAM share and the OCAM share alike.
2. Patient receivable: if the patient owes a copay (Tier B or an overage), it is posted to a standard client account (411) or a dedicated sub-account.
3. Third-party receivables: the CPAM and OCAM shares become trade receivables, usually tracked in specialist debtor accounts (e.g. "411-Clients CPAM", "411-Clients mutuelles") or in a single consolidated third-party payment account.

These receivables typically settle with a lag of 10 to 30 days. During that window the optician has already borne the cost of the equipment — frames and lenses — and must finance the gap.

Payment flows under a 100% Santé Tier A sale#

Tier A (classe A) requires the optician to:

• Offer at least 17 adult frame styles in a minimum of 2 colours, each priced at no more than €30.
• Offer at least 10 children's frames, each priced at no more than €30.
• Include corrective lenses (anti-reflective coating, scratch protection, standard treatments) at no extra charge.
• Issue a detailed written quotation (devis détaillé) that includes the 100% Santé offer.
• Guarantee zero copay for any patient who selects Tier A.

Accounting implications are significant:

1. Split revenue between Tier A (low-margin) and the free Tier (margin-flexible) from the point of invoicing.
2. Track Tier A cost of goods (frames and lenses) separately to measure true profitability per customer.
3. Prevent Tier A margins from structurally dragging down the firm's overall gross margin.

In practice, opticians typically address this through:

• Very thin Tier A margins (10–15%), compensated by volume.
• Higher margins on the free Tier (Tier B: 25–40%).
• Tight purchasing-cost control and productivity measurement per sales optometrist.

Standard eyewear — prescription glasses (corrective lenses plus frames) and corrective contact lenses — is subject to the standard VAT rate of 20%.

This follows from CGI art. 278-0 bis: common vision conditions are not treated as a disability under French tax law, so eyewear does not qualify for the 5.5% reduced VAT that applies to aids for disabled persons (Braille displays, screen readers, electronic magnifiers, adapted software and so on).

The 5.5% rate applies only to:

• Braille boards and electronic Braille readers.
• Electronic magnifiers (télé-agrandisseurs).
• Screen-reading and screen-magnification software (for the visually impaired).
• Certain specialised optical devices (e.g. an electronic magnifying lens for medical use).

But standard prescription glasses and corrective contact lenses: standard rate 20%, always.

This error is common and expensive. VAT collected at 20% must be declared in full each month (or quarter, depending on the filing regime). If an optician has invoiced at 5.5%, a full correction is required: the shortfall is assessed as under-collected VAT during a DGFiP audit.

VAT rate schedule for optician sales — 2026#

Managing third-party payment receivables is never straightforward in practice.

Phases of the settlement cycle#

1. Invoicing and transmission to the third-party operator: the optician issues an invoice in the patient's name, with the billing address being the OCAM or the TPP operator. For business-to-business transactions, the optician must be equipped to receive electronic invoices from 1 September 2026, and to issue them via an approved platform (plateforme agréée) by 1 September 2027 at the latest (for SMEs and micro-businesses).
2. File submission: via a telecommunications operator, the medical file (prescription, insurance proof) is transmitted to the OCAM.
3. Third-party decision: the OCAM approves or rejects (grounds: expired prescription, non-covered item, lapsed proof of cover, budget exhausted, etc.).
4. Settlement: if approved, the supplementary share is paid out. The OCAM cross-references against the CPAM file (which settles its mandatory benefit portion separately).
5. Discrepancies and returns: bad debts, amendment requests, late rejections all generate administrative follow-up.

The optician must therefore maintain a tracking register or spreadsheet of third-party payment claims, distinguishing:

• Claims in the course of submission.
• Claims approved and awaiting payment.
• Rejected claims (reason, corrective action taken).
• Settlements reconciled in the accounts.
• Unpaid claims more than 30 days old (for dunning letters or bad-debt provisions).

Provisions for doubtful receivables#

After 60 days without settlement, a third-party payment receivable becomes doubtful. The optician may book a bad-debt impairment (compte 491, an income-statement charge), which is reversed later if the claim eventually settles or if the debt is confirmed as a loss.

The accounting treatment works as follows:

• On sale: Debit 411 Clients (or 411-Tiers payant), Credit 707 Ventes de marchandises, Credit 44571 (VAT collected) — no impairment at this stage.
• At 60+ days unpaid: Debit 68174 (dotation aux dépréciations des actifs circulants — impairment charge on current assets), Credit 491 (Dépréciation des comptes clients — allowance for doubtful accounts).
• On final settlement: Debit 5X (bank), Credit 411 (receivable cleared); then reverse the now-unnecessary impairment.
• On confirmed write-off: Debit 654 (perte sur créance irrécouvrable — bad-debt loss), Credit 411 (final clearance) — VAT already collected is recoverable only where a debt is definitively irrecoverable, subject to conditions (CGI art. 272).

Diligent third-party payment follow-up in 2026 is all the more important as some OCAMs are tightening budgets or imposing longer payment cycles. A strong collection rate depends on watertight documentation at submission and proactive rejection management.

Optician operating as a micro-entrepreneur (micro-BIC)#

An optician below the micro-BIC thresholds (2026 figures: €203,100 for goods sales, €83,600 for service revenue) keeps simplified accounting — a mandatory receipts journal and no VAT to collect if below the franchise en base de TVA threshold. That said, third-party payment mechanics do not change: CPAM and mutual receivables still need to be tracked and collected, and the administrative follow-up remains exactly the same.

Days-sales-outstanding (DSO) is still a key cash-flow metric even under the micro regime. A typical 20–25 day lag on third-party payments ties up working capital that public insurance does not finance.

Franchised or networked optician#

Within a chain or franchise (e.g. Krys, Afflelou), some third-party payment flows may be centralised — a single transmission from head office, with proceeds distributed to individual stores. The shop must then determine how to allocate cash timing gaps and bad debts in its own accounts. The options are either a current-account arrangement with the parent company, or direct CPAM/OCAM receivables in the store's books if the store retains the customer rights.

Multi-disciplinary practice (optician + orthoptist)#

Some opticians also provide orthoptic services (rééducation visuelle — visual rehabilitation). Orthoptic acts may attract different VAT treatment depending on the nature of the service and the practitioner's qualifications. A clear split between invoicing streams and VAT flows then becomes necessary.

1. E-invoicing reform: 2026–2027 timetable#

France's facturation électronique reform requires all businesses to be able to receive electronic invoices from 1 September 2026, and then to issue them via an approved platform — from 1 September 2026 for large companies and mid-caps (ETI), from 1 September 2027 for SMEs and micro-businesses (TPE/PME). For an optician, sales to individual consumers fall primarily under transaction data e-reporting (e-reporting) rather than e-invoicing. Confirm your situation on impots.gouv.fr.

2. Payment deadlines and late-payment interest#

Mutual insurers and third-party payment operators are expected to settle providers within a reasonable period. Persistent delays weigh heavily on cash flow. Depending on the third-party payment agreement in place, late-payment interest provisions may exist. Where they do not, regular monitoring and systematic dunning remain the main levers.

3. Prescriptions and entitlement to reimbursement#

An optical prescription (ordonnance optique) is valid for 3 years from its issue date — the standard validity period in France. An expired prescription triggers a third-party payment rejection. The optician must verify the prescription date before submitting a claim, to avoid failed transmissions and unnecessary administrative effort.

4. Stock and inventory valuation#

Frames and lenses held in stock are current assets (compte 32X — Stocks de marchandises). At the financial year-end, they must be valued at cost using the weighted average cost (CUMP) or FIFO method — LIFO is prohibited in France. Out-of-fashion or obsolete frames and lenses must be written down to their realistic market value. Tracking stock split by Tier A / Tier B helps identify slow-moving inventory.

5. 100% Santé pricing and margin review#

The €30 all-in cap on Tier A frames and lenses does not change in 2026. However, if an optician's supplier costs rise, the Tier A margin must be watched closely. The cost price (purchase cost + indirect overheads) of a 100% Santé frame is often €10–15; beyond that level, profitability erodes quickly.

6. Tax audit exposure#

Opticians are more frequently audited on the following points:

• 20% VAT (incorrect application of 5.5%).
• Revenue accuracy: Tier A vs. Tier B (100% Santé compliance check).
• Third-party payment bad-debt provisions (eligibility of impairments and write-offs).
• Supplier payment terms (undisclosed benefits or related-party relationships).

Maintaining a solid file of pricing justifications and third-party payment settlement records substantially reduces audit risk.

A small optical group recently came to us because the accounts appeared sound but cash remained under pressure despite growing sales. On analysis, we identified three recurring problems:

1. Third-party receivables posted to a dedicated account but never reconciled monthly: claims 60–90 days old had never been chased or impaired. True DSO exceeded 35 days.
2. E-invoice compliance lag: several OCAMs were refusing to process payments without an invoice in the required electronic format, creating a growing backlog of rejected claims.
3. No Tier A / Tier B split: without any accounting segmentation, management could not see that average gross margin had fallen by 2 percentage points because Tier A cost of goods was not being controlled.

Those three problems together fully explained a working-capital squeeze that had no other obvious cause.

Hayot Expertise recommendation. Build a third-party claims tracker covering patient name, submission date, approval status and settlement date. Reconcile it against the accounts monthly to identify unpaid claims and trigger dunning at 30 days. Segment sales between Tier A (zero copay) and the free Tier (price-flexible) at the point of invoicing. Every quarter, check that your cost of goods plus indirect overheads on Tier A does not exceed €20–22; if it does, margins will erode. A chartered accountant specialising in optics can build this management framework and help optimise your cash flow.