Amelia DaviesUkraine and Russia moved closer to a formal peace agreement on 12 April 2026, with Kyiv reportedly "one step away" from signing a peace treaty following an Easter Day ceasefire on 10 April. For UK businesses, investors, and individuals with ties to Russia or Ukraine, the shift from war to peace brings a new set of urgent legal questions — ones that could directly affect sanctions compliance, frozen contracts, and personal liability.
What the Peace Talks Mean Right Now
After years of conflict, a ceasefire brokered around Orthodox Easter 2026 has raised hopes for a formal end to hostilities. UK Prime Minister Keir Starmer has committed to a Coalition of the Willing — including the UK, France, Poland, and Nordic countries — ready to monitor any demilitarised zones created by a treaty. The UK and France have already signed a declaration of intent to deploy forces to Ukraine if a peace deal is reached.
The shift from ceasefire to peace treaty, however, is not a switch that immediately resets the legal landscape. UK Russia sanctions, imposed in waves since 2022 under the Russia (Sanctions) (EU Exit) Regulations 2019, do not dissolve automatically when guns fall silent. They require active Government review, parliamentary process, or sunset clauses before they lapse. This means UK businesses cannot simply resume trading with Russian counterparties the moment a peace document is signed.
The Sanctions Maze: What Changes and What Doesn't
According to the UK Government's Office of Financial Sanctions Implementation (OFSI), there are currently over 1,600 individuals and entities on the UK Russia sanctions list. These restrictions cover asset freezes, trade restrictions, and financial services prohibitions.
A peace treaty would likely trigger a government review of some sanctions — particularly those tied to hostilities in specific Ukrainian territories — but the process could take months or years. The experience of sanctions regimes after other conflicts suggests that individual designations, particularly those linked to human rights abuses or corruption, often remain in place well after political resolutions are agreed.
For UK businesses, the practical implication is clear: any re-engagement with Russian counterparties must be preceded by thorough legal due diligence. A company that starts trading with a still-listed entity — even in good faith — could face criminal prosecution under the Policing and Crime Act 2017.
Frozen Contracts and Force Majeure Clauses
Many UK businesses that had contracts with Russian or Ukrainian partners invoked force majeure clauses in 2022 when the conflict made performance impossible. A peace treaty — or even a durable ceasefire — could potentially end the legal basis for those force majeure invocations.
If the circumstances that triggered a force majeure clause no longer exist, the contracting party that suspended performance may face a claim for breach of contract or damages. The legal test in England and Wales is whether performance has become permanently impossible or merely temporarily frustrated. A peace deal could shift that analysis significantly.
UK solicitors specialising in international commercial law are already advising clients to review any contracts where force majeure was invoked since February 2022 and assess whether a renewed performance obligation could arise. Companies operating in logistics, commodities, energy, and real estate are particularly exposed.
Property, Assets, and Frozen Funds
The war also saw a wave of oligarch-linked asset freezes in the UK — luxury properties, yachts, and bank accounts. A peace treaty does not automatically unlock these. OFSI and the National Crime Agency have separate powers to pursue unexplained wealth orders and criminal confiscation, which operate independently of foreign policy decisions.
For individuals who have money or assets frozen under sanctions designations, legal proceedings to challenge a designation must still go through the UK's designation review process or judicial review. This is a separate legal track from peace negotiations and can take years even in favourable political circumstances.
This article contains information of a general legal nature and is not a substitute for personalised legal advice. Sanctions law changes rapidly — always consult a qualified UK solicitor before taking any action.
Investment in Ukraine: Opportunity or Risk?
On the other side of the ledger, a peace treaty could open significant opportunities for UK businesses looking to participate in Ukraine's reconstruction. The Ukrainian government has already established a Ukraine Recovery Conference framework and the UK has pledged support for post-war rebuilding.
However, UK businesses entering Ukrainian reconstruction contracts need to consider jurisdictional risk, enforcement of foreign judgments, currency controls, and the legality of engaging with Ukrainian state entities under evolving EU and UK frameworks. The Office for Investment and UK Export Finance both have specific Ukraine-related programmes that offer some protection, but the legal environment remains highly complex.
According to the UK Government's Russia Sanctions guidance, UK businesses must continue to comply with all existing designations until formal legislative changes are made — regardless of the political status of any peace negotiations.
What UK Residents with Personal Connections Should Do
Beyond the corporate world, thousands of UK residents have personal financial or property connections to Russia or Ukraine — inherited property, bank accounts, family remittances, or investments. A peace treaty may create openings to resolve these situations, but also potential tax and reporting obligations.
HMRC expects UK residents to declare foreign income and assets regardless of geopolitical circumstances. If previously frozen remittance channels reopen, any funds received from Russia or Ukraine will likely need to be reported. Individuals who have been unable to access or declare foreign assets due to sanctions or conflict may wish to speak to a tax specialist about their disclosure position before the rules change.
When to See a Legal Expert
If any of the following apply to you or your business, now is the right time to seek professional advice:
- You have contracts with Russian or Ukrainian counterparties that were suspended or frustrated since 2022
- You or your company are listed on or have dealings with entities on the UK Russia sanctions list
- You have property, investments, or financial assets in Russia or Ukraine
- You are planning to tender for or invest in Ukrainian reconstruction projects
- You have received or expect to receive funds from Russia or Ukraine
A solicitor with expertise in international sanctions law or international commercial law can help you map your exposure and plan your next steps before the legal landscape shifts. ExpertZoom connects you with qualified legal professionals who can assess your situation and advise on the steps that apply to your specific circumstances.
