10 embassies owe half of London’s diplomatic congestion charge debt
As of June 2026, London’s diplomatic missions owed £173.8 million in unpaid Congestion Charges and penalties. Just 10 missions accounted for £90.7 million, or 52.2% of the total.
London’s Congestion Charge costs £18 a day for driving in central London during charging hours. Failing to pay can lead to a £180 penalty, reduced to £90 if paid within 14 days.
Diplomacy has many grey areas. Apparently, road pricing is one of them. TfL and the UK government say the Congestion Charge is payment for a service and therefore applies to diplomats. The US and some other missions argue that it is a tax, which would make it exempt under diplomatic rules.
Whose debt grew the most
China had the biggest increase in outstanding charges. Its balance rose by £2.38 million in a year, from £10.71 million in June 2025 to £13.09 million in June 2026. Of the £13.36 million added across missions whose balances increased, China accounted for 17.8%, almost £1 in every £6.
Top five embassies by increase in outstanding charges
30 June 2025 to 30 June 2026
Most embassies do pay
Most diplomatic missions in London pay the Congestion Charge. In 2025, a separate TfL dataset recorded 35,459 charges paid by embassies.
Together, these four accounted for 44.8% of all diplomatic payments in 2025.
The same four countries also dominate TfL’s full 2017–2025 payment data, with Saudi Arabia leading on 47,538 charges paid.
The biggest fall among missions between 2025 and 2026 came from the Philippines. Its outstanding balance dropped by £176,785, from £255,280 to £78,495.
On behalf of London, thank you, Philippines.
Data and methodology:
Source: TfL embassy debt fact sheets for 30 June 2025 and 30 June 2026. Figures include unpaid Congestion Charge fees and related penalties. Three missions listed in 2025 do not appear in the 2026 data: Belize (£283,110), Peru (£180) and Norway (£160). Their disappearance should not be interpreted as repayment: TfL’s published figures do not show whether the balances were paid, cancelled or corrected. I have requested repayment data from TfL and will update this page when it replies. For clarity, this story uses “embassies” as shorthand for diplomatic missions, including high commissions.
References
- Congestion charging embassy outstanding charges (from 2003 to 30 Jun 2026). Transport for London
- Congestion charging embassy outstanding charges (from 2003 to 30 Jun 2025). Transport for London
- Congestion Charge. Transport for London
- Penalties and enforcement. Transport for London
- Congestion Charge immunity for diplomatic missions. Greater London Authority
- Diplomats owe £165m in London congestion charges. BBC News
- Foreign embassies owe London record £160m in unpaid congestion charge debts. The Standard
- Foreign embassies and the Congestion Charge. Greater London Authority
- Percentage of embassies with outstanding Congestion Charge payments by year 2017 to 2025. Transport for London
Support my work by subscribing to Hypertextual, a newsletter about science and big ideas.