Mass retail in 2026: back margins, year-end rebates and accounting

Quick answer. In mass retail, "back margins" group the deferred payments made by suppliers: year-end rebates (RFA) and commercial cooperation. A rebate received is recorded as a reduction of purchases (account 609), a rebate granted as a reduction of turnover (account 709), always under a written agreement and via a separate credit note. Since the LME law (2008), these margins are reintegrated into the resale-below-cost threshold; the EGalim law caps promotions and imposes a resale threshold raised by 10% on food.

Mass retail rests on a two-tier margin model: the front margin (the gap between the invoiced purchase price and the consumer sale price) and the back margin (payments made by the supplier to the retailer for services or volumes). Recording these flows correctly is decisive: they weigh heavily on profitability and are tightly regulated by commercial law.

Recently, a regional food retailer consulted us during an audit: its year-end rebates had been recorded without a separate credit note, deducted directly from subsequent invoices. The authorities challenged the traceability of these reductions. Here we review the rules, from the accounting entry to the legal framework.

The front margin is the classic commercial margin, visible on the purchase invoice. The back margin covers everything the supplier pays back to the retailer:

• year-end rebates (RFA): conditional reductions, often linked to the purchase volume reached over the year;
• commercial cooperation: services the retailer provides to the supplier (product display, gondola ends, in-store events, catalogues).

The distinction is essential: a rebate is a price reduction, whereas commercial cooperation is a service invoiced by the retailer.

Recording depends on the position in the commercial relationship:

1. Retailer side (rebate received from a supplier): the rebate is credited to account 609 "Rebates, discounts and allowances obtained on purchases". It reduces the purchase cost.
2. Supplier side (rebate granted to a customer): the rebate is debited to account 709 "Rebates, discounts and allowances granted by the company". It reduces turnover.

Two formal conditions are mandatory:

• the rebate must be set out in a written agreement (the single annual agreement, articles L441-3 and L441-4 of the Commercial Code);
• it must be evidenced by a separate credit note, never by a deduction on the following invoice.

At year-end, if the credit note is not yet issued but the rebate is earned, an accrued income (retailer) or accrued expense (supplier) is recognised, to match the rebate to the correct year. For the supplier — for example a food-industry SME — this matching is a recurring watch point.

Commercial cooperation pays for services genuinely provided by the retailer to the supplier (in-store visibility, promotional operations, sales data). In accounting terms, it is income for the retailer (account 706), subject to the standard 20% VAT rate, and an expense for the supplier. It is governed by a distinct commercial cooperation contract, within the single annual agreement (signed by 1 March for fast-moving consumer goods).

The line between a rebate (price reduction) and commercial cooperation (service) must be clear: confusing the two distorts margin analysis and exposes the business to VAT reassessments and penalties for commercial practices.

• LME law (2008): it reintegrated back margins into the negotiated price and refocused competition on price. The resale-below-cost threshold (SRP) corresponds to the effective purchase price (net of financial advantages).
• EGalim laws (2018 and 2021): they cap promotions (in value and volume on many products) and introduce an SRP raised by 10% on food: a retailer cannot resell a food product below its purchase price plus 10%.
• Payment terms (article L441-10 of the Commercial Code): the default term is 60 days from the invoice date (or 45 days end of month); it is reduced to 30 days for perishable food products.

Buying group and stores#

In a network, rebates may be negotiated by a central buying group and then allocated among stores. The accounting follows the real flow: the buying group records the rebates obtained, then passes them on or allocates them per internal agreements.

Private-label products#

For private-label products, the relationship is often a straightforward purchase-resale without commercial cooperation: the margin is then built mainly at the front, with attention to the cost price and the applicable VAT rate per product.

Small retail and micro-enterprise#

A small independent retailer may fall under the micro regime and the VAT base exemption, but the rebate mechanics remain the same as soon as it negotiates allowances with its suppliers.

• Separate credit note required: a rebate deducted directly from a later invoice is non-compliant and weakens traceability.
• Written agreement: without a single annual agreement, the rebate and cooperation are legally challengeable.
• Separate rebates from commercial cooperation: one reduces the price (609/709), the other is an invoiced service (706, 20% VAT).
• Match to the year: accrue rebates earned but not yet invoiced at year-end.
• Comply with the SRP and EGalim: resale below cost and uncapped promotions expose to penalties.

The back margin is the economic heart of retail, but it is also its risk angle. Three errors recur: confusing a rebate (price reduction) with a commercial-cooperation service (taxable), deducting rebates without a separate credit note, and forgetting to match earned-but-not-yet-invoiced rebates to the year. Each distorts the real margin and attracts audits.

At Hayot Expertise, we set up a chart of accounts for these retailers that clearly separates allowances (609/709) from cooperation services (706), with tracking of credit notes and agreements. Combined with a tool such as Pennylane, it gives a reliable read of front and back margins, essential for steering the business.

Hayot Expertise advice. Formalise your single annual agreement before the legal deadline each year, and require a separate credit note for every rebate. In your accounts, separate rebates (price reduction) from commercial cooperation (a service invoiced at 20%). Finally, accrue earned-but-not-yet-invoiced rebates at year-end: this matching gives a true and fair view of your margin.