How Many Budget Categories Should You Have?

Too few budget categories hide problems and too many become a chore. Here's how to find the right number, with a sample list and tests for splitting or merging.

One of the first decisions in any budget is how to divide your spending. Some people start with five broad categories and soon find they cannot see where the money goes. Others build sixty finely-sliced envelopes and give up after a month of shuffling pennies between them. Both have the same problem: the categories are not matched to the decisions they need to make.

There is no magic number, but there is a way to find yours. For most households it lands somewhere between about 15 and 30.

What a category is for

A budget category earns its place if it helps you make a decision. That usually means one of three things:

  1. It is a bill you have to pay. Rent, electricity, insurance.
  2. It is spending you want to control. Dining out, clothing, hobbies.
  3. It is money you are setting aside for later. Car repairs, gifts, a vacation.

If a category does none of these, it is probably just a label for reporting. You can often get the same information from tags or payees instead.

The case against too few categories

With five categories, such as Housing, Food, Transport, Fun and Other, you will hit problems quickly:

  • “Other” swallows everything. It becomes the biggest category and tells you nothing.
  • Different decisions get mixed together. Groceries and takeout share “Food”, but cutting one is very different from cutting the other.
  • Irregular costs vanish. Without a Car repairs category, the $900 brake job hits “Transport” and wrecks the month.

The case against too many

With sixty categories:

  • Every transaction is a decision. Is this a “Coffee” or a “Snacks”? Did the pharmacy run go to “Medicine” or “Toiletries”?
  • Small envelopes keep running dry. With $15 in “Coffee”, one busy week puts it in the red, and you spend your time covering tiny overspends.
  • You lose the big picture. It is hard to see whether food spending is up when it is spread across eight categories.
  • Maintenance becomes a chore, and chores get skipped.

A sample set of about 20 categories

Here is a starting list that works for many households. Adjust names and amounts to fit.

Bills (fixed or nearly fixed)

  1. Rent or mortgage
  2. Utilities (electric, gas, water)
  3. Internet and phone
  4. Insurance (if paid monthly)
  5. Subscriptions
  6. Debt payments

Everyday spending

  1. Groceries
  2. Household supplies
  3. Gas and transit
  4. Dining out
  5. Personal care
  6. Entertainment
  7. Clothing
  8. Kids (or Pets)
  9. Personal spending (one per adult, if you share a budget)

True expenses (set aside monthly)

  1. Car maintenance and repairs
  2. Home maintenance
  3. Medical and dental
  4. Gifts and holidays
  5. Annual fees and renewals

Savings and goals

  1. Emergency fund
  2. One or two specific goals, such as a vacation or a car

That is about 22. A single person in an apartment might need 15. A family with a house, two cars and children might need 30.

Five tests for splitting a category

Split when:

  1. You want to control one part and not the other. If Groceries includes takeout and you want to cut takeout, split it.
  2. The timing is different. A monthly gym membership and an annual race entry fee behave differently. The annual fee belongs with true expenses.
  3. Different people are responsible. “Alex’s car” and “Sam’s car” if you each manage your own.
  4. It is often overspent and you don’t know why. Splitting temporarily can show which part is growing.
  5. You are saving for something specific. “Savings” is vague; “New roof, $8,000 by 2029” is a plan.

Five tests for merging categories

Merge when:

  1. Two categories are always confused. If you keep wondering whether something is “Household” or “Personal care”, combine them.
  2. A category is always tiny. If “Postage” is $4 a month, fold it into Household.
  3. You never act on the information. If you never change your behavior based on “Books” versus “Music”, merge them into Entertainment.
  4. You keep moving money between the same two. If Dining out and Coffee shops trade money every week, they are really one category.
  5. It hasn’t been used in six months. Remove it, or merge it into a broader true-expense category.

A worked example: tidying an overgrown budget

Lee had 38 categories and was spending an hour a week moving small amounts around. Lee looked at the last three months:

  • “Coffee” ($45), “Lunch at work” ($110) and “Takeout” ($140) were constantly trading money. Merged into Dining out, $295.
  • “Toiletries” ($35), “Cleaning” ($25) and “Laundry” ($15) merged into Household, $75.
  • “Streaming” ($35), “Music” ($11) and “Cloud storage” ($3) merged into Subscriptions, $49.
  • “Car insurance” was paid every six months, $720, but budgeted as a monthly $120 bill with nothing happening in five of six months. Moved into Annual fees and renewals, still $120 a month, now building up properly.
  • “Hobbies”, “Books”, “Concerts” and “Games” merged into Entertainment, $160.
  • Four categories with no transactions in six months were deleted.

Lee ended up with 24 categories. The budget took fifteen minutes a week instead of an hour, and nothing important was lost.

Use tags for detail you want to report on

If you want to know how much a hobby, a trip or a home project costs, a tag is often better than a category. A tag like “Italy trip” can sit on transactions in Dining out, Travel and Entertainment, letting you total the whole trip later without creating a category you have to fund. Payee reports do something similar: you can see what you spend at one store without a category for it.

Revisit categories a few times a year

Your life changes, and categories should change with it. A new baby, a paid-off car, a move or a new hobby are all good moments to look again. A quick review every quarter is enough:

  • Which categories were overspent repeatedly? Raise them, or split them to see why.
  • Which were barely used? Merge or remove them.
  • Are any true expenses missing? Look at the last year for one-off costs that caught you out.

In Kemback

Kemback lets you set up categories to suit you, and splits let one transaction cover several of them, such as a big-box store trip that was part groceries and part household. Tags and payees give you detailed reports without extra categories: income and spending reports can be grouped by category, payee or tag. If you are starting from scratch, Kemback can suggest a budget from your past spending, which is a good way to see which categories you actually use.

Aim for categories you can name without thinking and fund without fuss. If the budget is easy to keep up, you’ll keep it up.

#budget categories #envelope budgeting #budgeting basics

This article is general information, not financial, tax or legal advice. For decisions about your situation, talk to a qualified professional.

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