Short answer: Aviva Ireland, Allianz Ireland and 123.ie list Great Britain or Northern Ireland within their normal territorial cover. AXA Ireland confirms that an Irish-registered car does not need a Green Card for UK travel, including Northern Ireland.
How published policy territories differ from EU extensions
Allianz Ireland’s motor wording includes Great Britain, Northern Ireland and the Channel Islands in its home territorial limits. 123.ie likewise says full policy cover applies in these locations without advance travel notification. Aviva Ireland confirms that its car insurance covers Northern Ireland and Great Britain.
What evidence should you take?
Carry your current motor-insurance certificate and Irish insurance disc, driving licence and registration. AXA Ireland confirms that the Irish insurance disc can act as the accepted proof for the UK, rather than a Green Card. If your policy is from another insurer, check its latest certificate and schedule.
EU day caps are not always relevant
Do not automatically deduct a UK trip from an “EU extension” limit. The definition of territorial limits, and whether particular journeys use up foreign-use days, is insurer-specific. Check the exact wording where your company offers both.
Original sources
Research links checked 30 October 2026. Please confirm the current policy edition and your personal schedule.
Check your exact tier.
The result changes with insurer, destination, cover type and trip duration. Run a personalised check with direct-source citations.
Check my insurance abroad →