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The short answer
Keep your emergency fund in the currency your emergencies will be paid in. If you live and work in the UK, the main fund belongs in pounds, in instant-access savings. If family in Nigeria regularly turns to you for urgent help, add a separate, smaller naira buffer so a crisis at home does not force a rushed conversion at a poor rate.
What an emergency fund is for
An emergency fund pays for things you cannot plan: a job loss, a broken boiler, a sudden flight home, a medical bill. It works only if the money is there in the right form on the day. For a UK resident, most of those costs are in pounds. Rent, council tax, energy bills and a replacement laptop do not accept naira, and converting naira back into pounds in a hurry tends to be slow and expensive.
The emergencies that land in Nigeria are different: a parent in hospital, a burial, urgent school fees for a younger sibling, a roof repair at the family house. Those need naira, often within a day or two.
Match the currency to where costs fall
| Type of emergency | Currency needed | How fast | Where to hold it |
|---|---|---|---|
| Job loss or reduced hours in the UK | Pounds | Weeks to months | UK instant-access savings |
| Car, boiler or appliance repair | Pounds | Days | UK instant-access savings |
| Flight to Nigeria for a family event | Pounds (ticket) | Days | UK savings |
| Hospital bill for a parent in Nigeria | Naira | Hours to days | Naira buffer in Nigeria |
| Burial costs at home | Naira | Days | Naira buffer, topped up from pounds |
How big each part should be (example)
A common rule of thumb is three to six months of essential costs. That is a planning rule, not a requirement. Example only:
- Tunde's essential UK costs are £1,900 a month (rent, bills, food, transport). Three months is £5,700; he aims for £6,000 in pounds.
- His mother sometimes needs urgent help with medical bills. He keeps a naira buffer of ₦500,000 in Nigeria. At an example rate of ₦1,800 to £1 that is about £278 (₦500,000 ÷ 1,800 = £277.78).
In this example the naira part is under 5% of his total emergency savings (£278 of £6,278), but it means a call from home does not require a same-day conversion. The Nigerian library's guide to emergency fund sizing covers how families at home think about the same question.
Why not keep it all in naira?
- Currency risk. If the naira falls, a fund built in naira covers fewer months of UK costs.
- Speed. Getting money out of Nigeria and into a UK account can take days and paperwork, and a large transfer may prompt questions from your UK bank (see when a UK bank asks about money from Nigeria).
- Cost. Converting in a hurry means accepting whatever rate and fee are on offer that day.
When an emergency at home is bigger than the buffer
Sometimes a crisis at home costs far more than any buffer: surgery, a burial with many guests, or a legal problem. Then the pounds fund is the backstop. Before converting a large part of it, ask for the bill or estimate in writing and, where possible, pay the hospital, undertaker or lawyer directly rather than sending cash through relatives. That keeps the money tied to the purpose, gives you a receipt, and makes it easier to explain the transfer if your UK bank asks.
It also helps to agree, before anything happens, how siblings abroad will share large family costs. A short written understanding avoids one person draining their fund while others wait to see who pays first.
Protection on each side
The FSCS protects UK deposits up to £120,000 per eligible person per bank, building society or credit union, and states that it cannot protect e-money or payment services firms. That matters if you keep your emergency fund in an app: check whether the money is held as a bank deposit. In Nigeria, deposits at licensed banks are insured by the NDIC up to the applicable limit. Our Nigeria library covers where to keep an emergency fund in Nigeria.
Steps to set it up
- Add up three months of essential UK costs; that is your first pounds target.
- Look back at the last two years: how much did emergencies at home cost you? Set a naira buffer near that figure.
- Fill the pounds fund first, unless family emergencies at home are frequent.
- Put the naira buffer in an account you control directly, not a relative's account.
- After you use either part, rebuild it before restarting other savings.
Where Pryme fits
A Pryme account holds GBP and NGN in one place, so the naira buffer can sit next to your pounds. A Flexible Savings Box keeps naira separate from spending money; naira deposits are held by a licensed Nigerian microfinance bank and insured by the NDIC up to the applicable limit. When an emergency comes, you can send naira to family directly. Outside Nigeria, Pryme works through regulated partners. See the multicurrency account.
Questions people ask
Should I keep my emergency fund in naira if my family is in Nigeria?
Keep the main fund in the currency of your own living costs, usually pounds in the UK, and a smaller naira buffer for emergencies at home.
How much emergency fund do I need living in the UK?
A common rule of thumb is three to six months of essential costs. Start with three months and build from there.
Is my money in a UK app protected by FSCS?
Only if it is held as a deposit with a bank or building society. FSCS says it cannot protect e-money or payment services firms.
What is the fastest way to get money to family in Nigeria in an emergency?
Having naira already in Nigeria is fastest. Otherwise use a regulated provider and check the delivery time it shows before you pay.
Sources
- FSCS: Check your money is protected · accessed Oct 2026
- GOV.UK: Tax on foreign income (updated 1 Oct 2026) · 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.