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The short answer
A common rule for settled residents is three months of essential costs; most migrants should aim higher, often six months or more, because a job loss on a work permit can mean a short window to find a new sponsor, many visas limit access to state support, and an emergency flight to Nigeria can arrive at any time. Build it in stages: one month first, then three, then your full target.
Why the usual rule falls short for migrants
Three months of essential spending is the figure most personal finance guides start from. It assumes you can fall back on state benefits, family nearby and a credit history to borrow against. A newcomer usually has none of the three. Visa conditions in many countries restrict access to public support, family are thousands of miles away, and lenders have little or no local record to judge you by. The emergency fund has to do more of the work.
Factors that raise your target
A permit tied to one employer
If your right to work depends on a particular employer, losing that job is both an income shock and an immigration problem. Ireland's Critical Skills Employment Permit, for instance, ties the holder to the named employer, occupation and location on the permit, and a new permit for another employer cannot be sought before nine months except in cases such as redundancy (DETE page, undated). Other countries give a fixed period after a job ends to find a new sponsor or leave. Check the rule on your own permit, and hold enough to live through that whole window plus the time it takes a new employer to process sponsorship.
Funds you must show at renewal
Some applications require you to show money held for a set period. GOV.UK's student visa page asks for £1,529 a month in London and £1,171 a month elsewhere, for up to nine months, held for 28 days in a row, unless you have been in the UK on a valid visa for 12 months. IRCC's officer instructions for visitors set no fixed amount, only funds large enough to cover reasonable expenses. If your next application has such a test, that money is not your emergency fund: count it separately.
Travel home at short notice
A parent's illness, a funeral or a family event may need a flight within days, when fares are highest. Add the cost of one short-notice return flight to Nigeria to your target, at the fare you see for your route when you check.
Single income and dependants
One earner supporting a partner on a dependant visa, or children, needs more months than two earners in separate industries.
A way to set your number
- Add up essential monthly costs: rent, bills, food, transport, insurance, minimum debt payments and your fixed home support.
- Start at three months.
- Add three months if your permit is tied to one employer or you are the only earner.
- Add one short-notice flight to Nigeria.
- Keep any visa proof-of-funds money separate from this total.
That number can feel out of reach. Build it in stages: one month of essentials first, then three, then the rest. Our guide to budgeting a first salary abroad shows where the monthly contribution comes from, and the first 90 days money checklist puts it in order with the other early tasks.
What counts as an emergency
An emergency fund only works if it is used for emergencies. Decide in advance what qualifies, and write it down if you share finances with a partner:
- Loss of income, including a gap between jobs or a delayed first salary.
- Urgent travel to Nigeria for illness, death or a family crisis.
- Essential repairs, medical costs not covered where you live, or a deposit when you must move at short notice.
- Visa costs that arrive unexpectedly, such as a fresh application after a change of employer.
A December trip, a wedding contribution or a new phone are not emergencies; they belong in planned savings. After you use the fund, rebuild it before restarting other goals, using the same monthly amount that built it.
Where to keep it
- In the country where you live and in its currency, because rent and bills are paid there.
- In an account that is protected. In the UK the FSCS covers eligible deposits up to £120,000 per person per firm; check the equivalent scheme where you live.
- Separate from your spending account, but reachable within a day or two.
- Not in naira savings in Nigeria if it must pay rent abroad: converting in a hurry means accepting whatever the rate is that day.
A separate naira fund for family emergencies at home is a different tool; siblings often share one, as explained in our guide to a shared sibling emergency fund. For the Nigeria-side view, see our Nigeria library on sizing an emergency fund in Nigeria.
Where Pryme fits
A Pryme multicurrency account can hold an emergency pot in GBP, USD or EUR apart from everyday money. For naira held in Nigeria, a Flexible Savings Box can hold a family emergency fund for home; the app shows the current rate.
Questions people ask
How many months of emergency fund do I need on a work visa?
Often six months or more, because a job loss can start a deadline to find a new sponsor. Check your permit's rules and cover that whole period.
Does proof of funds for a visa count as an emergency fund?
No. Money you must show at a renewal has to stay put, so keep it separate from the emergency fund.
Should I keep my emergency fund in naira?
Not the part meant for rent and bills abroad. Keep that in local currency so you are not forced to convert at a bad rate.
How do I start an emergency fund on a small salary?
Aim for one month of essential costs first, then build to three, then your full target.
Sources
- DETE Ireland: Critical Skills Employment Permit · accessed Oct 2026
- GOV.UK: Student visa, money you need · accessed Oct 2026
- IRCC: Proof of funds and financial support (visitors) · accessed Oct 2026
- FSCS: Check your money is protected · 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.