How to categorize expenses without a spreadsheet
A small, stable set of categories and a habit of correcting once beats an elaborate budget template. Here's a simple approach that lasts.
Key takeaways
- Around twenty broad categories is enough for most households and keeps charts readable.
- Most spending comes from a few dozen merchants, so deciding each merchant's category once covers most transactions.
- Review only new merchants each month instead of re-checking every line.
Most budgeting systems fail in month two, not because the categories are wrong, but because keeping them up takes more time than anyone has. The goal isn't a perfect taxonomy; it's one you'll still be using in a year.
Start with fewer categories
Housing, groceries, dining, transport, utilities, shopping, health, subscriptions and other covers most households. Add a category only when a question you actually ask can't be answered without it.
Keep categories about what the money was for, not how you paid. Card payments, savings transfers and moving money between accounts aren't categories at all — they're transfers, and they stay out of spending (here's why).
Correct a merchant once
Your spending is concentrated: the same few dozen merchants make up most of your transactions. Decide where each belongs once, and let every future transaction from that merchant follow the same rule.
- Fix the category the first time it looks wrong.
- Apply the change to that merchant's past rows too.
- Review only the new merchants each month.
Watch the catch-all
If “Other” grows past a small slice of the month, it's hiding something. Sort it by merchant and you'll usually find one or two that deserve their own category — often subscriptions or fees.
After two or three months, categorizing a new statement mostly means confirming what's already right.
Frequently asked questions
How many expense categories should I use?
Start with around ten to twenty broad categories. Add one only when you have a question you can't answer without it.
What are the most common personal expense categories?
Housing, groceries, dining, transport, utilities, shopping, health, insurance, subscriptions, entertainment, travel and fees cover most household spending.
How do I stop re-categorizing the same merchants every month?
Set a rule per merchant: once you decide where a merchant belongs, apply it to every past and future transaction from that merchant.
