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Budgeting5 min readFoundations

Tracking Expenses: Where Does Your Money Actually Go?

You can't manage what you don't measure. Here's how to find out where every dollar goes.

Young woman reviewing a long receipt with concern

Before you can create a , you need to know where your money is going. Most people are surprised—often shocked—when they see the real numbers.

Why Track Expenses?

A study found that people underestimate their spending by 30-40%. That $5 coffee doesn't feel significant, but $5 × 5 days × 52 weeks = $1,300 per year.

Tracking expenses reveals:

  • Where your money actually goes (not where you think it goes)
  • Spending patterns you didn't know you had
  • Easy cuts that won't affect your quality of life
  • Whether you're living within your means

The Two Approaches

Method 1: Look Backward

Review the last 2-3 months of spending:

  1. Pull up your bank and statements
  2. Categorize each transaction (housing, food, transportation, etc.)
  3. Add up the totals
  4. Calculate percentages of your

This gives you a realistic baseline of your actual habits.

Method 2: Track Forward

Record every expense as it happens:

  1. Use an app, spreadsheet, or notebook
  2. Log every purchase for 30 days
  3. Review weekly to stay aware
  4. Categorize at the end of the month

This builds awareness and often changes behavior automatically—you spend less when you're paying attention.

Common Categories

CategoryWhat's Included
HousingRent/, utilities, insurance, maintenance
TransportationCar payment, gas, insurance, repairs, transit
FoodGroceries AND dining out (track separately)
HealthcareInsurance premiums, medications, copays
Debt payments, student loans, other debt
Savings, retirement, goals
EntertainmentStreaming, hobbies, events, subscriptions
PersonalClothing, haircuts, gym, personal care
MiscellaneousGifts, donations, random expenses

The Subscriptions Trap

Subscriptions are budget killers because they're invisible. Audit yours:

  • Streaming services (Netflix, Spotify, etc.)
  • Software subscriptions
  • Gym memberships you don't use
  • Subscription boxes
  • App subscriptions
  • News/magazine subscriptions

Add them up. Many people find $100-300/month in subscriptions they forgot about or rarely use.

What to Look For

Fixed expenses: These stay the same each month (rent, car payment, insurance). You can only reduce these by making bigger changes.

Variable expenses: These fluctuate (food, entertainment, shopping). These are easier to adjust quickly.

Discretionary spending: Wants, not needs. This is where most budget flexibility exists.

Red Flags

Watch for these patterns:

  • Dining out exceeds groceries
  • Subscriptions you forgot you had
  • Multiple small purchases adding up
  • "Miscellaneous" category is huge
  • Credit card balances growing

Tools for Tracking

Manual options:

  • Spreadsheet (complete control)
  • Notebook (for cash spenders)
  • Envelope system (physical budgeting)

Apps:

  • Your bank's built-in spending tracker
  • Budgeting apps that connect to accounts
  • Simple expense tracking apps

Start simple. The best tool is one you'll actually use consistently.

The 30-Day Challenge

Try this: Track every single expense for 30 days. Every coffee, every impulse buy, every subscription. At the end:

  1. Total each category
  2. Calculate percentage of income
  3. Identify your top 3 spending surprises
  4. Pick one area to reduce by 10-20%

This exercise alone can find hundreds of dollars in your budget.

From Tracking to Budgeting

Once you know where your money goes, you can decide where you want it to go. That's what transforms expense tracking into an actual :

  1. Track for 30 days (current state)
  2. Identify changes you want to make
  3. Set targets for each category
  4. Track against those targets
  5. Adjust as needed

Awareness is the first step. You can't fix what you don't see.

Key Takeaways

  • 1Most people underestimate their spending by 30-40%
  • 2Track every expense for 30 days to see the truth
  • 3Subscriptions are often invisible budget killers