Entering Foreign Currency Figures (Multi-Currency)

Entering figures in a currency other than GBP? Here is how to handle multi-currency costs and balances when filing through @AdamsWinter.

Why GBP Only?

HMRC and Companies House require accounts and tax returns in GBP. @AdamsWinter accepts figures in GBP only — you will need to convert any foreign currency amounts before entering them. This is standard practice for UK companies with international costs, and HMRC accepts converted figures provided you use a consistent method.

How to Convert to GBP

Option 1: Transaction-by-transaction rate

Use the exchange rate on the date of each transaction. Your bank statements typically show the GBP equivalent for each foreign currency item. This is the most precise method and is always acceptable to HMRC.

Option 2: Average rate for the period

HMRC also accepts an average exchange rate for the accounting period. HMRC-published average exchange rates are available on GOV.UK (search "HMRC exchange rates").

Apply one method consistently — do not mix approaches within the same set of accounts.

What Figures Need Converting?

All figures entered into @AdamsWinter must be in GBP:

• P&L — turnover, cost of sales, staff costs, other expenses
• Balance sheet — assets, liabilities, and any director's loan balances
• Foreign currency bank balances — convert at the closing rate on the last day of the period

Director's Loans in Foreign Currencies

If a director lent money to the company in a foreign currency, enter the GBP equivalent of the outstanding amount at the period end as a creditor on the balance sheet.

Common Questions

I have costs in EUR, USD, and PLN — is this a problem?

No. Convert each to GBP before entering your figures. Many UK companies have multi-currency costs; you simply enter the GBP totals.

Does HMRC require a breakdown of which currencies were used?

No. Your CT600 and accounts show GBP totals only. The currency conversion is part of your bookkeeping, not the tax return itself.

My accounting software already shows GBP totals — do I need to do anything?

No. If your software has already converted and totalled everything in GBP, use those figures directly.

Still Have Questions?

Last updated: 2026-03-23