The Simplest Budget That Works When You Have Failed at Budgeting Before
Most people who say they’re bad at budgeting are not bad at budgeting. They tried a system that required categorising every transaction, kept it up for three weeks, missed a few days, fell behind, and stopped.
That’s not a character flaw. It’s a system that demanded daily attention from someone who has a job.
This one requires setting up once and about twenty minutes a month afterwards. It’s less precise than a detailed budget. It’s better, because you’ll still be doing it in a year.
The idea
Instead of tracking what you spend, you separate money by job the day it arrives, so that the money in your spending account is already safe to spend.
No categorising. No apps. No guilt. The structure does the work.
Three accounts
1. Bills account. Every fixed cost leaves from here: rent or mortgage, utilities, insurance, phone, broadband, subscriptions, debt payments.
2. Spending account. Groceries, fuel, everyday life. This is the only account with a card you carry.
3. Savings account. Ideally at a different bank, without a card. Friction is a feature.
Most banks let you open extra accounts free in a few minutes.
Setting it up
Step 1: Add up your fixed costs
Go through twelve months of statements — twelve, so the annual charges appear — and list every payment that happens whether or not you do anything. Rent, utilities, insurance, subscriptions, debt.
Add it up. Divide anything annual by twelve.
That total is your bills number.
Step 2: Decide your savings number
Whatever you can genuinely manage. If that’s a small amount, use the small amount. A small amount that continues beats a large one abandoned in month two.
If you have expensive debt, treat paying it down as your savings number.
Step 3: Set up three automatic transfers for payday
On the day you’re paid, three transfers fire automatically:
- Bills number → bills account
- Savings number → savings account
- Everything left stays in the spending account
Set these up once at the bank. They then happen without you.
Step 4: Move your direct debits to the bills account
Every fixed payment now leaves the bills account. This is a tedious afternoon, once. After it, your fixed costs are handled by an account you never look at.
Step 5: Spend the spending account
Here is the entire day-to-day discipline: the money in your spending account is yours to spend, and when it’s gone, it’s gone.
No categorising groceries versus coffee. You already set aside the bills and the savings. Whatever’s left is genuinely free.
Why it works when other budgets don’t
It’s a structure, not a habit. It doesn’t rely on you remembering anything daily.
It cannot be accidentally overspent. Bill money isn’t sitting in the account you spend from, so you can’t unknowingly eat it.
It survives a bad week. Miss a week of tracking in a normal budget and you’re behind and demoralised. Here there’s nothing to miss — the transfers already happened.
It removes guilt. Guilt is what kills budgets. Spending from an account you’ve already made safe feels different from spending money that might have been needed elsewhere.
The monthly twenty minutes
Once a month, check three things:
- Did the bills account cover everything? If it ran short, your bills number is too low. Raise it.
- Did the spending account run out early? If so, either the number is unrealistic or something needs cutting. Both are useful information.
- Anything new? New subscription, changed rent, a price rise. Adjust and move on.
That’s it.
The common failure, and the fix
Raiding the savings account. If it’s one tap away in the same app, it will be spent.
Put it at a different bank. Don’t get a card for it. Make moving money out take two days rather than two seconds. That delay is the whole point, and it’s the difference between savings that accumulate and savings that don’t.
Getting the bills number right
Most people set it too low the first time, because irregular costs get forgotten — car servicing, annual renewals, Christmas, birthdays, the dentist.
Add a buffer. Take your fixed costs and add something on top for the irregular things. It will feel like too much and it usually isn’t. If it turns out to be, lower it after three months when you have real data instead of a guess.
The short version
- Three accounts: bills, spending, savings.
- Add up twelve months of fixed costs. That’s your bills number.
- Three automatic transfers on payday. Set once.
- Move the direct debits to the bills account.
- Spend what’s left, without tracking it.
- Twenty minutes a month to check and adjust.
You will not know how much you spent on coffee last month. You’ll also still be doing this next year, which is worth considerably more.