Single market integration is Europe’s most powerful economic lever, and yet it is still not working as well as it should.
Why barriers persist despite decades of rules
The EU’s single market gives businesses access to 450 million consumers. It is the first driver of competitiveness and the second largest global market. But its rules and regulations can be complex and create barriers to entry and growth.
Despite progress, the single market remains fragmented, preventing businesses and citizens from using its full potential. The core problem is not a lack of legislation. There are policy areas in which EU-level harmonising legislation exists but is not complied with. Despite efforts by EU institutions, compliance outcomes could be better.
Persistent barriers to free movement, poor transposition, implementation, and enforcement of rules, as well as ineffective governance, are hindering business growth and limiting opportunities. Key performance indicators highlight a decline in market integration for both goods and services.
The cost of doing nothing on single market barriers
The economic argument for action is straightforward. Resolute actions to remove remaining regulatory barriers to the single market could generate economic benefits of at least €644 billion per year by 2032. A separate European Parliament estimate puts the figure even higher: the benefits of removing the remaining barriers to a fully functioning single market for goods and services could amount to €713 billion by the end of 2029.
Market fragmentation caused by regulatory and structural differences hinders businesses’ ability to take full advantage of the wider European market. This is particularly true for innovative firms: 74% of them cite regulatory inconsistencies as a barrier to expanding their business. For SMEs, the burden is even heavier. 28% of EU SMEs report that more than 10% of their staff are employed to assess and comply with regulatory requirements and standards.
The single market has already raised EU GDP by 3 to 4% and created 3.6 million jobs. Completing it could double these gains. That is a compelling reason to act now.
What the “terrible ten” single market barriers actually are
In May 2025, the European Commission published a new strategy to address this directly. The strategy focuses on removing the 10 most harmful barriers reported by businesses: complicated business establishment and operations; complex EU rules; lack of ownership by member states; limited recognition of professional qualifications; lack of common standards; fragmented rules on packaging; lack of product compliance; restrictive and diverging national services regulation; burdensome rules for posting of workers in low-risk sectors; and unjustified territorial supply constraints.
The next chapter of European growth will be written in services. There has been little progress on completing the single market for services, the EU’s largest sector and its least integrated, in the last 2 decades. The Commission is now proposing to modernise rules across construction, postal, and business services. Digital labels using QR codes will allow consumers to easily access information about products, while also making it simpler for businesses to comply with labelling rules. The Digital Product Passport will be gradually rolled out with the aim of being used across all EU product legislation.
Expert perspective on single market reform
Removing barriers from the single market is not just an exercise in legal tidying. It is a structural requirement for Europe’s competitiveness. The services sector alone holds enormous untapped potential, yet national regulatory differences have barely changed in decades. Businesses operating across borders face a patchwork of authorisation rules, professional qualification requirements, and posting obligations that multiply costs and delay growth. What Europe needs is not more legislation but disciplined, consistent enforcement of what already exists, combined with genuine harmonisation of standards. Without that, every new green technology or digital innovation risks being trapped inside national boundaries rather than scaling across the continent.
Industry perspective, investment and competitiveness professionals in the European Union
How enforcement is getting stronger
The Commission is not stopping at strategy documents. To support the development of wind and solar energy installations, the Single Market Enforcement Task Force implemented a project on eliminating over 90 process barriers to permitting. The task force also promoted introducing good practices for clear information and deadlines, a one-stop shop, digital permitting, and tacit agreement.
To ensure that citizens and businesses can make or receive direct payments across the EU, the task force implemented a project on tackling IBAN discrimination in the public sector and telecoms. The task force also launched a project to make it easier to open bank accounts across the EU. Consumers and companies often encounter difficulties in opening accounts in other EU countries, which is a constraint on their cross-border activities.
On governance, member states are expected to name a high-level single market representative, called a “Sherpa,” to oversee the application of EU single market rules. Member states are also encouraged to prevent single market barriers by assessing the proportionality of their draft national measures.
What this means for the green and innovation agenda
The link between single market reform and Europe’s green transition is direct. Europe needs to combine its ambitious climate goals with a realistic and pragmatic roadmap that would help companies seize the opportunities presented by the green transition. Fragmented compliance rules are one of the main obstacles to that roadmap.
A more integrated electricity market can help lower electricity costs and boost competitiveness through expanded cross-border interconnections, reduced electricity taxation, and stronger competition. Enhancing productivity requires a more integrated single market with fewer regulatory barriers for firms to scale, compete, and innovate.
The strategy is part of the Commission’s wider goal to cut red tape by 25% overall and 35% for SMEs by the end of 2029. The strategy supports SME development and growth by introducing a new definition of small mid-cap companies, extending some of the benefits afforded to SMEs to these companies. It also simplifies existing rules and makes digitalisation the norm by allowing companies to submit documents digitally to comply with certain EU legislation.
The single market still has real potential to unlock
The single market remains the EU’s most important economic tool. While the EU has removed many barriers to trade in the single market over the years, new sources of fragmentation continue to appear. That cycle must stop. The 2025 strategy is a serious step, but the strategy does not fully take up the more far-reaching institutional reforms, such as the establishment of a specialised enforcement body, introduction of binding minimum investigation criteria, or strengthening of the deterrent effect of sanctions. Without clearer commitments on these structural issues, there is a risk that the strategy’s promising initiatives may fall short.
The single market will not fix itself through political goodwill alone. It needs consistent enforcement, digital tools, and a genuine commitment from member states to apply agreed rules. For European businesses, especially those building the green and digital economy, a fully integrated single market is not a policy aspiration. It is a basic operating condition. The Commission’s current direction is correct. Now member states need to follow through.
Discover more about single market
- EU Single Market Strategy 2025, European Commission
- BusinessEurope: Examples of single market barriers for businesses 2025
- ECB: What is the untapped potential of the EU Single Market?
