Between you and the person across the kitchen table, or across town. betweenus is a shared ledger for the money that moves between you, so the deal stays fair and the relationship stays whole.
01
The bank of mum and dad
Your parents help with a house deposit, a car, or your last semester of university. They don’t want to charge you bank rates, but being generous shouldn’t cost them money either.
Put the loan in a family ledger, agree on a fair rate, and betweenus works out the interest month by month. You both see the same balance whenever you look, and a repayment shows up for both of you as soon as it’s logged. No spreadsheet arguments at Christmas dinner.
Mum and dad lend you $50,000 for a house deposit at 3% a year. After twelve months with no repayments, here’s where things stand.
Family ledger · 3% a year
House deposit
$50,000.00
Interest, 12 months
+$1,520.80
Owed to mum and dad
$51,520.80
What you owe
$51,520.80
Same number, two sides. A personal loan would cost you far more.
You need $15,000 for a kitchen renovation. Your brother has savings earning, say, 2%. The bank wants 11% to lend it to you.
Cut the bank out of the middle and meet at 5%. Your brother earns more than double his savings rate, and you pay less than half the bank’s. betweenus compounds the interest, records every repayment, and keeps a running balance you both trust.
You repay $400 a month. Here’s what the interest comes to, start to finish.
One of you pays the electricity. The other covers groceries. Someone bought the washing machine. You know roughly who owes what, but “roughly” is where the arguments start.
Stop sending five dollars back and forth. Log each shared cost with the other person’s share, and betweenus keeps one running balance. No interest, just a clear record of who’s ahead. When the gap gets big enough, one transfer squares it.
Over a few months you log everything from a washing machine to a bag of coffee beans, split down the middle.
A close friend needs $8,000 for a car to get to a new job. You have the money and you want to help, but you’ve heard the stories about lending to friends.
Money rarely breaks a friendship on its own. The trouble is the fuzziness: who remembers what, what was agreed, what’s left. A shared ledger clears that up. You both see the same record, every repayment is logged, and there’s nothing to misremember.
You lend $8,000 at 0%, and your friend repays $350 a month.
Friend ledger · no interest
Car loan
$8,000.00
18 repayments of $350
−$6,300.00
Still to go
$1,700.00
About five more months. Your friend knows exactly where they stand, and so do you.
05
Fronting the costs for a side project
You and a friend are starting a side project, and you’ve paid for the laptop and software to get it going. You agreed to split those costs, so half of what you spent is really your friend’s to cover.
Log their share in a ledger between the two of you. As the project starts earning, your friend pays it back from their cut, and the balance shows what’s left. The split stays even, and nobody has to keep score in their head.
You spend $3,500 on equipment, so your friend’s half is $1,750. They pay it back from their share of the first client invoices.
Project ledger · costs split evenly
Laptop and software, their half
$1,750.00
From the first invoice
−$800.00
From the second invoice
−$600.00
Still owed to you
$350.00
Why you’ll both trust the numbers
One ledger, two views
You each see the same entries and the same balance, from your own side: what’s owed to you, or what you owe.
They can suggest entries
The person you share a ledger with can propose a repayment or a correction. Nothing changes until you accept it.
Interest done the same way, every time
Interest accrues daily and compounds monthly, on a day you choose. The free family loan calculator uses the same maths.
Statements when you need them
On the Personal plan, export the full history as a PDF statement or CSV, ready to print or file.
A ledger, not a lender
Handshakes and shared ledgers only work when both hands are steady.
betweenus keeps the record. We don’t extend credit, assess risk or give financial advice. A loan between two people is a private arrangement, and it works best between people who know each other well, trust each other, and can keep their side of the deal.
Interest you receive on a loan may count as taxable income, so check with an accountant before you settle on a rate. If things get complicated, talk to a financial professional. We just do the maths.
The money between us deserves a proper ledger.
No credit checks, no paperwork, no bank in the middle. Just a shared ledger that keeps both sides honest.