The short answer
Budget from the last three months of real spending, not from intentions. Split take-home pay into fixed costs, a weekly flexible allowance, and automated savings that leave the account on payday.
Budgets fail because they are written as a wish list. Build yours from the bank statement you already have.
Step by step
- Export three months of transactions and total them by category.
- List fixed costs: rent, utilities, insurance, subscriptions, debt minimums.
- Subtract fixed costs from average take-home pay.
- Move savings out automatically on payday, before anything else.
- Divide what is left by 4.3 to get a weekly flexible allowance.
- Track only the flexible allowance — fixed costs need no daily attention.
- Review monthly and adjust the allowance, not your willpower.
What it costs
| Item | Typical cost |
|---|---|
| Spreadsheet | free |
| Budgeting app | $0–$15 / month |
| Typical emergency fund target | 3–6 months of fixed costs |
Common questions
Which comes first, debt or savings?
A small buffer of about one month first, then attack high-interest debt, then build the full fund.
What is 50/30/20?
A starting split of needs/wants/savings. Useful as a sanity check, not as a rule.
Why weekly?
A month is too long to feel a mistake. A week gives you four chances to correct.