Retailers have escaped a temporary margin cap only to face tougher supplier contracts, digital-price disclosure and marketplace duties modelled on the EU.
Serbia spent six months trying to restrain food prices with a ruler. From September 2025, the government capped margins on a broad basket of goods at 20 per cent. The measure expired at the end of February 2026 after criticism that it had been introduced abruptly, without meaningful consultation and with a risk of distorting supply.
The replacement is less visible and more consequential. In April, parliament adopted a Trading Practices Law, a new Consumer Protection Law and amendments to the Trade Law. The package shifts intervention from a single headline margin to contracts, payment terms, promotions, online rankings, reviews and price data. Most consumer-law provisions began applying on 2 August 2026.
For Delhaize Serbia, Lidl, Mercator-S, Univerexport, DIS and Metro, the old cap was a direct hit to pricing. The new regime is an operating-model project. Thousands of supplier agreements, promotion workflows, shelf labels, websites, call centres and returns processes must be made consistent with duties that regulators and consumers can test transaction by transaction.
Suppliers gain a rulebook for bargaining
The Trading Practices Law borrows from the EU’s campaign against unfair practices in food supply chains but applies more broadly, including agricultural inputs, household chemicals and hygiene products. Its black list prohibits conduct such as late payment, unilateral contract changes, misuse of trade secrets and cancellation of perishable orders on short notice. A grey list covers returns, listing, display and promotional charges unless they are expressly and clearly agreed.
The Competition Commission can fine black-list conduct and retaliation at 0.2 per cent of total annual turnover generated in Serbia; grey-list breaches can attract 0.1 per cent. Repeat infringements can double the sanction. A whistleblower may receive 5 per cent of the fine, an unusual incentive that gives procurement and category-management staff a reason to preserve evidence.
Serbia has moved from controlling the retail margin to regulating how that margin is negotiated, displayed and defended.
The reform changes the balance between chains and producers. A small dairy, farm cooperative or household-goods supplier gains clearer grounds to challenge fees or deductions that were previously treated as the cost of shelf access. Large retailers gain a reason to standardise contracting and centralise approvals. The risk is that defensive compliance produces fewer promotions, narrower assortments or more cautious onboarding of small suppliers.
The price tag becomes data
Trade-law changes require stronger promotion transparency, including a reference to the lowest price in the preceding 30 days. Retailers must prepare to provide digital price lists in real time through an open-data framework. That could make comparison tools and regulatory monitoring much easier — and make price discrimination or inconsistent execution harder to hide.
The technical burden is substantial. Point-of-sale systems, enterprise-resource-planning data, online catalogues and shelf labels must agree across hundreds of thousands of stock-keeping units. A promotion planned by a brand and negotiated centrally can become a legal problem if a local store, marketplace listing or loyalty app presents it differently. Retail technology vendors, data-quality specialists and compliance software providers are therefore among the quiet winners.
Consumers also gain a stronger remedy when goods fail soon after purchase. The new law provides for more direct termination and refund rights in the first 30 days in relevant cases, raises penalties and strengthens inspection tools, including mystery shopping. The real commercial effect will depend on enforcement capacity and whether courts and inspectors apply the standards consistently.
Marketplaces lose the fiction of neutrality
Serbia’s online market is now too large to treat as a niche. The National Bank recorded 110.6mn online purchases in 2025. Domestic marketplace Ananas lists more than a million products, while Temu’s partnership with Post of Serbia shows how a global platform can enter through logistics before building a large local corporate footprint.
The consumer law brings digital content, digital services and marketplaces into clearer focus. Platforms must disclose whether a seller is a trader, explain important ranking parameters, identify paid placement and deal with fake reviews. Personalised pricing and situations in which consumers provide personal data instead of money require additional transparency. A marketplace may not own the goods, but it increasingly owns part of the compliance journey.
Incumbent chains retain stores, logistics, supplier relationships and consumer trust. E-commerce entrants can offer assortment and price discovery without building a national branch network. The new rules narrow both advantages: physical retailers face searchable price transparency, while platforms face duties that make scale less frictionless. Smaller merchants risk being squeezed by the systems and documentation required on either channel.
Serbia’s consumer policy is becoming more European in substance but remains Serbian in execution. The margin cap showed the state’s willingness to intervene quickly when prices become political. The April laws show a more durable alternative: shape the market’s conduct, information and contracts instead of dictating one number. Companies that treat the package as legal housekeeping will miss its strategic effect. It changes where bargaining power sits — between chain and supplier, platform and seller, and brand and customer.
