Know What Your Life Costs: A 12-Month Spending Review

Add up a year of real spending from your statements, sort it into a few categories, and find the annual number every other money decision depends on.

Updated November 4, 2026

Almost every big money decision, from how much to save to when you could stop working, depends on one number: what your life actually costs in a year. Most people guess, and most guess low. A spending review replaces the guess with a real figure in an afternoon.

The numbers in the worked example are illustrative.

Step 1: Gather twelve months of statements

Download the last twelve months of statements for every account you spend from:

• Bank accounts, including transfers and checks.
• Credit cards.
• Payment apps you use for regular spending.

Twelve months matters. A shorter period misses annual bills, holidays and seasonal costs.

Step 2: Sort into a few categories

Keep it simple. Five or six groups are enough:

• Housing: rent or mortgage, property tax, insurance, repairs, utilities.
• Transport: car payments, fuel, insurance, maintenance, transit.
• Food: groceries and eating out.
• Health: insurance premiums and out-of-pocket costs.
• Everything else: clothes, subscriptions, gifts, travel, hobbies, kids’ activities.
• One-offs: genuinely unusual costs.

Don’t count transfers between your own accounts, or money you saved or invested.

Step 3: Find the costs people forget

These are the ones that make a spending estimate too low:

• Annual and twice-yearly bills, such as insurance, memberships and car registration.
• Gifts and holidays.
• Repairs and replacements: the dentist, the car, the fridge.
• Cash spending that doesn’t show up by category.

Step 4: Remove true one-offs carefully

It’s tempting to strip out anything unusual. Be strict: if something like it happens most years (a car repair, a family emergency, a big trip), it isn’t a one-off. It’s part of what your life costs. Only remove things you’re confident won’t recur.

Step 5: Arrive at your annual number

Here’s what one illustrative household found:

They had guessed $55,000. The gap came mostly from annual bills, gifts and repairs.

What to do with the number

Your annual spending is the starting point for:

• Your savings rate: see savings rate.
• Your financial-independence number: see your FI number.
• A budget you’ll keep: see choosing a budget method.

Repeat the review once a year. It gets quicker every time.

Common questions

How far back should I look at my spending? Twelve months, so annual and seasonal costs are included.

Should I count taxes in my spending? For a spending review, count what you spend after tax. Taxes matter later, when you work out how much you need to withdraw in retirement.

What about one-off expenses? Remove them only if they truly won’t recur. Most “one-offs” happen in some form every year.

Do I need a budgeting app? No. Statements and a spreadsheet are enough. An app can make it faster.

This guide is general education, not individual financial advice.