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The short answer
Dollars in a UK bank currency account are covered by the FSCS up to £120,000 per person per bank; dollars in an e-money app are safeguarded, not FSCS-protected. A Nigerian domiciliary account sits under CBN rules and NDIC cover, which the NDIC describes in naira terms. The right choice depends on where you will spend the dollars and how often you need them.
Three places your dollars can sit
| UK bank currency account | UK e-money app | Nigerian dom account | |
|---|---|---|---|
| Protection | FSCS, £120,000 per person per bank | Safeguarding, no FSCS | NDIC rules (see below) |
| Who regulates | PRA and FCA | FCA | CBN |
| Typical use | Holding and paying in USD from the UK | Receiving USD with local details, spending, converting | Paying in Nigeria, school fees, family |
| Tax on interest | UK tax if resident | UK tax if resident | 10% Nigerian WHT, plus UK reporting |
Holding USD in the UK
Bank currency accounts
Some UK banks offer currency accounts. HSBC UK's explainer says its currency accounts need an active HSBC current account, come without a debit card, and are covered by the FSCS up to £120,000 per eligible person per bank, or £240,000 for a joint account. The FSCS limit counts all your money at that bank together, in every currency.
E-money apps
Several UK e-money apps give you local USD account details. But the FSCS says plainly that it "can't protect e-money or payment services firms". Your money is instead safeguarded, which our guide to whether money in a UK e-money wallet is safe explains. Some apps also hold a UK banking licence for part of their service, so check which entity holds your balance in the terms.
Holding USD in Nigeria
The CBN FX Manual that took effect in June 2026 gave ordinary domiciliary holders broad access. TheCable reported that no source-of-funds disclosure is needed to open or fund a dom account and that transfers of up to $10,000 a day are allowed. Reports differ on exactly what the $10,000 figure covers, so ask your bank. Cash withdrawals and charges vary by bank.
On protection, the NDIC's own FAQ describes cover as "naira-for-naira" per eligible account, up to ₦5,000,000 per depositor at a commercial bank. It does not spell out how a dollar balance is valued, so ask the NDIC or your bank before relying on it for a large sum. Since January 2026, banks deduct 10% withholding tax on interest on foreign-currency deposits (BusinessDay).
Conversion costs: where the money is lost
Holding dollars rarely costs much. Converting into and out of them does. Each conversion has two parts: any visible fee, and the margin between the rate you get and the mid-market rate. Banks often build the margin into the rate; many apps show a separate fee and quote closer to mid-market. Compare the amount that arrives, not the headline fee.
Worked example, figures made up: you convert £5,000 to dollars, then later convert those dollars to naira. If each step costs 2% in margin and fees, you lose about £100 on the first step and about 2% of what remains on the second, roughly £198 in total, before any movement in rates. Going from pounds to naira in one step at 2% would cost about £100.
Access in practice
Protection only matters if the firm fails. Day to day, the question is how quickly and cheaply you can use the dollars where you need them.
- From the UK, a UK app or bank currency account lets you pay a US supplier, receive a dollar payment or convert to pounds the same day, within the firm's limits.
- In Nigeria, a domiciliary account lets you pay in dollars to another dom account, fund a dollar card, or sell dollars to your bank for naira. Branch cash withdrawals depend on the bank and on the CBN rules in force.
- Moving dollars between the two takes an international transfer, which brings its own fee, possible intermediary bank charges and a delay of a day or more.
Many readers end up with both: a UK balance for UK-side flexibility, and a Nigerian dom account for costs that are paid at home. The trap is moving the same money back and forth, paying a conversion or transfer fee each time. Decide where each pot of dollars will finally be spent, and hold it there.
Which one suits you
- You spend the dollars in Nigeria (school fees quoted in USD, a dollar card for travel): a Nigerian dom account, with a small UK float.
- You earn or receive USD in the UK and will convert to pounds: a UK app or bank currency account.
- You want FSCS cover on a large balance: a UK bank currency account, watching the per-bank limit.
There is no UK capital gains charge on a gain made on a foreign-currency bank account held by an individual since April 2012, according to HMRC's Capital Gains Manual (CG78320). Interest is still taxable. For a deeper look at the Nigerian side, see domiciliary versus multicurrency accounts, and our page on holding dollars in a UK account.
Where Pryme fits
One Pryme account holds USD, GBP, EUR and NGN with local account details for each. Money stays in the currency it arrived in until you choose to Swap; the rate is shown first and the fee on its own line. Outside Nigeria, Pryme's activities are carried out through regulated partners. See the multicurrency account.
Questions people ask
Is a Nigerian domiciliary account safe?
It is regulated by the CBN and the bank is NDIC-insured. The NDIC describes cover in naira terms, so ask how a dollar balance is treated.
Are dollars in Wise protected by the FSCS?
The FSCS says it cannot protect e-money or payment services firms. E-money balances are safeguarded instead.
Do I pay UK tax on dollar interest?
If you are UK resident, yes, interest is taxable income. HMRC says gains on individuals' foreign-currency bank accounts are not chargeable to CGT since April 2012.
Is it cheaper to convert pounds straight to naira?
Usually one conversion costs less than two. Compare the total received on the day.
Sources
- FSCS: Check your money is protected · accessed Oct 2026
- HSBC UK: What is a currency account · accessed Oct 2026
- TheCable: CBN FX Manual 2026 (3 Jun 2026) · accessed Oct 2026
- NDIC: Frequently asked questions on deposit insurance · accessed Oct 2026
- BusinessDay: Banks deduct 10% withholding tax on foreign currency interest (1 Jan 2026) · accessed Oct 2026
- HMRC Capital Gains Manual: foreign currency bank accounts (CG78300 onwards) · accessed Oct 2026
This article is general information, not financial, legal or tax advice. Products described are provided under the terms on this site and are subject to regulation and eligibility.