Historical HMRC exchange rates
HMRC fixes one exchange rate per currency per calendar month and does not revise the published monthly file afterwards, so a rate you look up here is the one HMRC issued at the time. That makes historic rates worth keeping to hand: a VAT correction, a late invoice or an enquiry about a prior period all need the rate that applied then, not today's. This archive holds every published month from January 2021 to September 2026 — 69 months, around 140 currencies each.
Looking for the current month? The live rates page always shows the month HMRC has most recently published, and explains which rate applies to which tax. This archive covers months that have closed.
Why the month matters
The rate you must use is the one for the period the transaction falls in, not the one in force when you do the paperwork. That distinction only becomes visible when something is filed late or corrected: a VAT return amended six months on still converts at the original month's rate.
HMRC publishes each month on the penultimate Thursday of the preceding month, and rates are expressed as units of foreign currency per £1 — so you divide the foreign amount by the rate. For which rate applies to which tax, and the alternatives VAT Notice 700 permits, see our main HMRC exchange rates page.
These are administrative rates, not market rates. If you are converting money rather than reporting it, what matters is your provider's margin against the mid-market rate: the FX calculator shows that gap. For the payment itself, the payment timing calculator covers when funds actually arrive.
Source: HMRC monthly exchange rate files via the UK Online Trade Tariff, under the Open Government Licence v3.0 · Editorial policy