Fixed vs. variable expenses: what is the difference?

Fixed expenses stay about the same each month, like rent or a car payment. Variable expenses change with what you buy or use, like groceries or gas. Sorting them shows what you can realistically change.

Common examples

Usually fixedUsually variable
Rent or mortgageGroceries
Car paymentGas
InsuranceEating out
SubscriptionsClothing

Some bills fall in between. An electric bill changes through the year, but you can't skip it. Put each one wherever makes the most sense for you, and stay consistent.

Why the split helps

How to sort yours in 3 steps

  1. List every regular expense from your last two or three months of statements.
  2. Mark each one fixed or variable.
  3. Add up each group, then compare both totals with your monthly income.

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Questions

Is a phone bill fixed or variable?

Usually fixed, if you pay the same amount each month. If it changes a lot, treat it as variable.

Are utilities fixed or variable?

They usually change month to month, so many people call them variable, even though they are necessary.

Related guides

Budgeting gear

This guide is general information, not financial advice. The numbers are examples.