UK businesses can now use the Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP) across all 11 other member countries, after Canada became the final member to bring the UK’s accession into force on 1 September 2026.
For small exporters, the milestone does not automatically create sales. It does, however, widen the set of markets where firms can check for lower tariffs, simpler customs processes, improved access to public contracts and more workable arrangements for short business visits.
What has changed?
The UK signed the CPTPP in 2023 and began receiving benefits from countries as they ratified its accession. Canada’s ratification means the agreement now applies between the UK and every CPTPP member: Australia, Brunei, Canada, Chile, Japan, Malaysia, Mexico, New Zealand, Peru, Singapore and Vietnam.
The government says the combined economies of the bloc, including the UK, were worth £12.9 trillion in 2025. It estimates that membership could add around £2 billion a year to the UK economy in the long run.
More than 99% of current UK goods exports to CPTPP countries will be eligible for zero tariffs. The practical saving will vary by product, destination and whether the goods meet the relevant rules of origin, so businesses should not assume that every shipment qualifies automatically.
Why Canada matters to smaller firms
The final step is particularly relevant to businesses already selling to Canada or considering it as a first overseas market. CPTPP expands access to Canadian public procurement opportunities in areas including air transport, accounting and financial services.
It also changes some business-mobility arrangements. Eligible UK business visitors can now stay in Canada for up to six months, compared with the previous limit of 90 days in any six-month period. That could make it easier for smaller manufacturers, engineering firms and technology suppliers to handle installation, training and after-sales support without repeated short trips.
The existing UK-Canada Trade Continuity Agreement remains in force, so exporters may need to compare which agreement provides the most useful tariff treatment and rules for a particular transaction.
Four checks for small exporters
- Confirm the commodity code and tariff. Check the correct classification for the product and the preferential tariff available in the destination market. A headline promise of zero tariffs is not a substitute for checking the exact product line.
- Test the rules of origin. Businesses need evidence that goods qualify as originating under CPTPP rules. Review supplier declarations, component origins and record-keeping before claiming preference.
- Review contracts and landed costs. Decide who is responsible for freight, insurance, customs declarations, taxes and local delivery. Include exchange-rate movement and returns in the margin calculation.
- Look beyond goods. Service businesses should examine procurement portals and market-access rules, while firms sending staff abroad should check the precise eligibility and immigration requirements for each trip.
Small firms new to exporting may benefit from testing one market and one product line first. A limited pilot can reveal documentation, logistics and customer-support costs before a larger commitment is made.
What to watch next
CPTPP creates a framework, but the commercial value will depend on whether businesses can find customers and manage compliance at a competitive cost. Firms should watch for sector-specific guidance, procurement notices and export-support events focused on Canada and the wider bloc.
The agreement may be most immediately useful to established exporters that can revisit existing pricing, and to specialist SMEs able to compete for contracts or provide technical services across several member markets. Businesses considering expansion should build a market-specific plan rather than treating CPTPP as one uniform sales territory.
