Money Between Friends
Everything about owing, lending and splitting money with friends — IOUs, paying people back, rent, group trips, dinner bills and the apps that keep it friendly.
Money between friends has a terrible reputation it doesn't deserve. Lend a stranger £50 and there's paperwork; lend a friend £50 and there's… vibes. Then three weeks pass, nobody's sure if it was £50 or £40, and suddenly a tenner is worth more than it's ever been worth in its life.
Here's the good news: almost none of this is a money problem. It's a memory problem wearing money's clothes. Friends don't fall out because someone owed £60 — they fall out because nobody wrote it down, both people remembered it differently, and the conversation about it arrived six months too late.
This guide covers the whole territory — tracking IOUs, lending, asking to be paid back, splitting rent, trips and dinner bills, and picking an app to do the remembering for you. Each section links to a deeper guide if you want the full treatment.
The one rule that fixes almost everything
Write it down at the moment the money moves. That's it. That's the whole secret.
Every awkward money conversation between friends is really an argument between two memories. When the amount, the reason and the date live somewhere neutral — a shared note, a spreadsheet, an IOU tracker — the conversation changes from my word against yours to two people looking at the same fact. Nobody's accusing anybody. You're just tidying up.
Everything below is a variation on this rule.
Keeping track of IOUs
An IOU with no record isn't an IOU — it's a rumour. The £30 you covered at the pub quiz, the concert ticket you fronted, the "I'll get the next one" that never came: individually trivial, collectively the reason you feel vaguely short-changed by someone you love.
There are three honest ways to track IOUs: paper (charming, loseable), a spreadsheet (accurate, nobody updates it after week two), and a purpose-built app (does the remembering for you). We compare all three in how to keep track of IOUs, but the principle beats the tool every time: record the amount, the reason and the date. The reason matters most — "£30, pub quiz, 4th March" survives three months of forgetting in a way "£30" never will.
Tracking who owes you money
Once you're owed money by more than one person, you need the whole picture in one place. Keeping score across texts, screenshots and mental arithmetic is how people end up either chasing a friend who already paid or quietly writing off £200 a year out of sheer admin fatigue.
A proper system shows every person, every balance and every reason at a glance — green for money coming your way, orange for money you owe. That's exactly what the track money owed page walks through. The point isn't surveillance; it's that a calm, complete list means you never have to think about who owes you what. The list thinks about it.
Lending money to friends
Lending to a friend is where the stakes go up: bigger amounts, longer timelines, more room for hurt feelings. The etiquette in short: only lend what you can afford to lose, agree the repayment shape out loud ("whenever" is a shape — a bad one), and write the thing down where you can both see it.
The counterintuitive part is that the record makes lending more generous, not less. When the loan has a date and a reason, your friend isn't carrying the anxiety of a vague obligation, and you're not carrying the resentment of an unacknowledged one. Our guide to lending money to friends covers the full playbook, including what to do when repayment stalls.
Asking to be paid back (without making it weird)
You're allowed to want your money back. Read that again if you need to. Your friend almost certainly hasn't refused to pay you — they've forgotten, and they'd be mortified to know you've spent three weeks composing messages in your head.
The technique is to make the ask specific, private and easy: the amount, the reason, your payment details, sent as a two-line message rather than raised at a birthday dinner. "Hey — before I forget again, can you send me the £60 from the theatre tickets? No rush." We've written full scripts for every situation — the casual first mention, the second nudge, the genuinely overdue — in how to ask a friend to pay you back.
And if you're stuck on whether you're even allowed to bring it up: yes. Is it OK to remind a friend they owe you money? unpacks why the guilt lands on the wrong person, and how a written record makes the reminder feel like housekeeping instead of a confrontation.
Splitting bills fairly
"Let's just split it evenly" is the most expensive sentence in casual dining. Sometimes it's right — roughly equal orders, ongoing friendship, small difference. But when one person had the steak and the cocktails and another had soup and tap water, an even split quietly taxes the modest orderer, and they will remember.
The fair default is item-by-item: everyone pays for what they actually had, shared things get shared. It used to be a faff; now splitting a bill item by item takes about as long as splitting it evenly — and if you just need an answer right now, our free bill split calculator does it in your browser, no app required. For the restaurant-specific etiquette — including when an even split genuinely is the kinder choice — see splitting a dinner bill: itemised vs even.
Splitting rent with roommates
Rent is the bill-splitting boss level: big money, every month, with bedroom sizes, en-suites and that one windowless box room all arguing against a straight three-way split. The short version: split by something (room size, income, straight thirds) on purpose, agree it once, write it down, and revisit when someone's circumstances change.
Utilities, the communal loo roll and the couch nobody remembers buying each have their own rules. How to split rent with roommates fairly covers the methods, the maths and the conversation scripts.
Group trips
Nothing generates IOUs like travel. One person books the cottage, another covers the hire car, a third keeps buying the petrol — and by day four the money has tangled into a knot nobody can untie from memory. The fix is one shared running record from the first booking onward, with every expense logged as it happens, settled once at the end rather than in a flurry of nightly micro-transfers.
How to split expenses on a group trip has the full system, including handling the friend who "doesn't drink" and the one who booked flights on points.
Picking an app (so none of this is manual)
You can do everything above with a notebook. But the entire category of friend-money problems — forgotten IOUs, disputed amounts, awkward reminders — exists because manual systems depend on the least reliable component: us, remembering to use them.
A good friend-money app should be free without ambushing you with ads, work without forcing your friends to sign up, record the reason behind every entry, and keep a history nobody can quietly edit. Splitwise is the household name; the friendlier Splitwise alternative explains where PayMeLater differs, Splitwise vs PayMeLater does the head-to-head honestly, and best free Splitwise alternatives surveys the wider field — including the ones we lose to.
The etiquette cheat sheet
For the impatient, the entire guide in nine lines:
- Write it down when the money moves. Ten seconds now saves a friendship-flavoured headache later.
- Record the reason, not just the amount. Numbers fade; "the taxi from the airport" doesn't.
- Lend only what you can afford to lose — then act as if you'll get it back, because with a record, you usually do.
- Ask specifically and privately. Amount, reason, payment details, two lines, no audience.
- Never apologise for asking. It teaches both of you the ask was wrong. It wasn't.
- Split by items when orders differ, evenly when they don't. Decide on purpose, not by default.
- On trips, log as you go and settle once at the end.
- Keep balances visible to both sides. Secrets are for presents, not ledgers.
- Let a tool do the remembering. Your memory has better things to do.
Where PayMeLater fits
We built PayMeLater because every fix in this guide comes down to the same move — write it down somewhere neutral — and that move should take seconds, not willpower. Every IOU keeps its amount, reason, date and full change history; balances stay visible to both sides; your friends don't need an account; and there's no nagging, no ads and no fee. It's free on iOS and Android, and it exists so that the £60 stays a £60 — and never becomes a story you tell about a former friend.

