The European Commission is considering giving candidate countries wider access to the EU single market, research programmes and industrial cooperation before they become full members, as Brussels prepares a broader overhaul of its enlargement policy.

Under a draft proposal reported on Tuesday, Brussels would offer what it describes as “gradual integration”, extending access to trade, research, innovation and industrial cooperation as individual candidates bring their legislation into line with EU rules and demonstrate that they can enforce them.

The proposal would take considerably further an approach the Commission has been developing for several years. Its existing policy review on pre-enlargement reforms already provides for gradual integration into selected EU policies before accession, including early access to parts of the single market.

According to the reported draft, earlier integration would create new opportunities for EU businesses, reinforce European value chains and reduce strategic dependencies.

“Earlier integration will unlock opportunities for Union businesses, strengthen European value chains and reduce strategic dependencies,” the draft states.

The Commission would determine where sufficient regulatory alignment and enforcement capacity existed to permit deeper participation in research, innovation and industrial cooperation, as well as broader market access.

The arrangement would remain conditional. Candidate countries would not receive unrestricted access simply because accession negotiations had begun.

Instead, the extent of integration would depend on progress in adopting and enforcing EU legislation, as well as cooperation with Brussels on foreign policy, sanctions, investment screening, export controls and the protection of sensitive technologies.

Market access linked to strategic alignment

One of the most significant elements of the proposal is the connection between economic integration and the EU’s wider security policy.

As industrial and market integration deepens, participation in sensitive sectors would have to be accompanied by cooperation on investment screening, export controls, sanctions implementation and protection of sensitive technologies, according to the draft.

Access would also take account of strategic alignment, critical dependencies and a candidate country’s ability to manage risks involving infrastructure and supply chains.

The Commission has already established the principle that early integration into the single market requires both alignment with EU legislation and effective enforcement. Existing arrangements with Ukraine, Moldova and Western Balkan countries have been used to test integration in individual sectors before membership.

The new proposal would expand that model considerably.

It could also increase pressure on candidate countries whose foreign policies diverge from those of the EU, particularly over relations with Russia and China.

Ukraine and Moldova among countries targeted

Ukraine, Moldova, Albania and Montenegro are expected to be offered specific roadmaps intended to accelerate their integration over the coming years.

All four have advanced in the accession process, although at different speeds.

Ukraine and Moldova have moved into substantive negotiations covering the legislation and institutional reforms required for membership. As EU Today reported in June, the process now involves detailed scrutiny of the rule of law, public administration, democratic institutions and the ability to implement EU legislation.

Moldova is already being integrated into selected areas of the European economy. It has joined the Single Euro Payments Area and the EU’s roaming regime, while Brussels has also expanded its participation in European programmes. The Commission said after the EU-Moldova summit in June that gradual integration into the single market was already under way.

Ukraine has similarly been moving towards deeper economic integration through its existing free-trade arrangements with the EU and sector-by-sector alignment with European legislation.

Enlargement Commissioner Marta Kos has previously said that Brussels intends to accelerate Ukraine’s integration into additional parts of the single market before membership, adding that ideas developed for Ukraine should also be considered for other candidates.

A wider change to enlargement policy

The proposal comes as the EU attempts to resolve a central problem surrounding its current enlargement round: accession can take many years, while the political and economic consequences of keeping candidate countries outside the Union continue to grow.

Croatia, which joined in 2013, remains the EU’s most recent new member.

Several candidates have spent years — and in some cases decades — within the accession framework. Negotiations with Türkiye are effectively frozen, while Serbia, North Macedonia and Bosnia and Herzegovina have experienced prolonged delays.

Brussels is also considering how to protect EU decision-making and rule-of-law standards as membership expands. EU Today reported earlier this year that five member states had proposed additional safeguards for future members, including stronger monitoring and mechanisms intended to prevent individual governments from obstructing EU decisions.

Gradual integration offers a separate response to the same enlargement problem: economic integration would no longer have to wait until every stage of accession had been completed.

The European Parliament has backed the principle of merit-based and reversible gradual integration, including access to parts of the single market for candidates making sufficient progress. Parliament has also stressed that such arrangements should not become a substitute for membership or create different permanent categories of EU states.

Under the Commission’s emerging model, candidates could therefore move progressively into the EU’s economic and regulatory system while accession negotiations continue.

Full membership would remain the stated objective. But a process in which most of the economic advantages arrive only at the end could increasingly be replaced by one in which access is granted sector by sector as candidates meet the required conditions.

The Commission is due to present its assessment of how future enlargement will affect major EU policies, and what changes the Union itself will need to accommodate new members, on 6th October.

After Iceland voted down EU membership in an August referendum, Montenegro regained its status as the most-likely 28th member state of the bloc.

Its government plans to close negotiations on all the chapters of the accession agreement by the end of the year and enter the Union in 2028 – a challenge, especially as a planned Tuesday meeting (22 September) with EU negotiators was postponed.

Montenegro also needs to answer the Union’s concerns about corruption and persuade all the member states to let it in.

EUobserver spoke to Marjan Šarec, former Slovenian prime minister, MEP for Renew Europe, and the parliament’s rapporteur for Montenegro. He follows the negotiation process, keeping his optimism for the country’s accession.

Can Montenegro become the 28th member of the European Union by 2028?

It’s the ambition of Montenegro, surely I would like to see that happen. The process of ratification would need to be smooth, it also depends when Montenegro concludes the negotiations – their ambition is to do it by the end of this year, which is very ambitious. Eighteen chapters have been provisionally closed, there are quite a few to go.But it also depends on the member states.  

What’s the next thing on the negotiations agenda? 

There are some chapters which are still difficult: the rule of law, the judiciary system, corruption, organised crime, all those issues are very demanding. What worries me is implementation because you can pass a law, but you also have to implement it. Montenegro has its problems, and it will have those problems for several years. But EU membership would help to build a different society, different environment. 

And when it comes to the chapters to finish, what are some of the most contentious issues? 

The issue of corruption is quite difficult to solve because, well, Montenegro is a small society: 630,000 inhabitants. In such an environment, it’s very difficult to prosecute: that’s why it will take some time. But Montenegro surely made a lot of progress and we can be moderately optimistic.

What are the risks of the accession negotiations taking a long time?

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What happens if your economy is suddenly in crisis, Brussels offers help with strings attached—and Turkey, China or Russia can move faster? What if your country delivers every reform the EU asks for, only for a member state to block the next step anyway? And after years of waiting, would voters still choose to join?

In this special bonus episode, The Neighbourhood goes live from Lisbon for an EU enlargement game. Jessica Hendrick brings together RE-ENGAGE experts representing six EU candidate countries and throws a series of fictional—but very plausible—political and economic shocks at them inspired by real headlines: Russia’s intensified attacks on Ukrainian infrastructure, Ireland’s EU presidency push on enlargement, Iceland’s referendum, Germany’s regional elections and the upcoming 2026 Enlargement Package. Drawing on three years of surveys, interviews and crisis simulations, each expert has to answer for their country.

Playing for each country:

• Albania: Morten Bøås, research professor at the Norwegian Institute of International Affairs (NUPI), representing RE-ENGAGE’s Albanian partners at the European University of Tirana
• Bosnia and Herzegovina: Damir Kapidžić, director of the Institute for Social Science Research at the University of Sarajevo
• Georgia: Ketevan Bolkvadze, senior lecturer in the department of political science at Lund University, originally from Georgia
• Moldova: Mathilde T. E. Giske, research fellow at the Norwegian Institute of International Affairs (NUPI), representing RE-ENGAGE’s Moldovan partners at Moldova State University
• Serbia: Luka Filipović, research associate at the Institute for Contemporary History in Serbia
• Ukraine: Roman Petrov, president of the Ukrainian European Studies Association

The result is part enlargement simulation, part policy conversation and part game night. The experts bargain over a fictional €100 million EU cheque, decide whether the EU can compete with faster offers from other powers, test how easily disinformation could exploit frustration with enlargement, and imagine what would happen if EU membership was finally put to a public vote. Along the way, Serbia proposes keeping its relationship with Brussels “casual”, Bosnia finds a creative use for €100 million, and Ukraine calls for Hungarian “Varangians” when backsliding strikes.

When a crisis hits, does speed matter more than values? Can “Europe never wanted you anyway” become a winning political message? And if a country finally joins the EU, what stops democracy from sliding backwards once the prize of membership is secured?

Further reading:
RE-ENGAGE research overview
RE-ENGAGE research on Albania
RE-ENGAGE research on Bosnia and Herzegovina
RE-ENGAGE research on Georgia
RE-ENGAGE research on Moldova
RE-ENGAGE research on Serbia
RE-ENGAGE research on Ukraine

This podcast was recorded live in Lisbon on September 3rd, 2026.

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