International Customs
Seamless cross-border compliance.
Customs compliance is a critical element of international trade, directly affecting supply chain efficiency, cost management, and regulatory standing. Our customs law team provides specialist advice on all aspects of UK and international customs law.
Since Brexit, UK businesses face a fundamentally different customs landscape. The Customs Act 2018 and the Taxation (Cross-border Trade) Act 2018 established the UK's independent customs framework, replacing the Union Customs Code. We help importers and exporters navigate customs declarations, tariff classifications under the UK Global Tariff, origin determinations, and duty relief schemes. Our solutions-oriented approach ensures businesses maintain compliance while optimising their customs costs — delivering measurable savings through strategic use of special procedures and trade agreement preferences.
Customs Classification & Valuation
Accurate tariff classification and customs valuation to ensure correct duty payments and avoid significant penalties.
Duty Relief & Special Procedures
Maximising the use of duty relief schemes and special customs procedures to reduce import costs substantially.
Post-Brexit Trade Compliance
Managing the customs implications of the UK-EU TCA, the Windsor Framework, and the Border Target Operating Model.
HMRC Investigations & Customs Disputes
Representing businesses in HMRC customs investigations, assessments, and appeals before the Tax Tribunal.
Valued and trusted
by our clients
“Their AI law expertise is genuinely exceptional. We were deploying a machine learning model for credit decisioning across UK and EU markets and needed to comply with both the UK's sectoral approach and the EU AI Act's high-risk requirements simultaneously. Masl Legal developed a unified compliance framework covering our conformity assessment, documentation standards, human oversight mechanisms, and FCA Consumer Duty obligations. They reduced our compliance timeline from 12 months to 6 months without compromising thoroughness.”
David L.
CTO, AI-powered lending platform processing £15m annually
“Our IP portfolio is in genuinely safe hands. When we discovered a competitor had filed trade mark applications across 4 classes that directly conflicted with our core brand, Masl Legal's IP team filed opposition proceedings within 48 hours. They built a compelling case based on our earlier rights and the distinctiveness evidence we had been collecting on their advice. All 4 oppositions were successful, and we secured a costs award. Their proactive approach to IP monitoring identified the threat before we even knew it existed.”
Sarah T.
Founder & CEO, consumer wellness brand with £6m annual revenue


