Net Worth Tracker: Build One in 15 Minutes
A net worth tracker is the simplest money tool you will ever build: one list of what you own, one list of what you owe, and a single number that subtracts the second from the first. You can set one up in about fifteen minutes, and it will tell you more about your progress than any single bank balance.
Income tells you what flows in. It says nothing about what sticks. Net worth is everything you own minus everything you owe, and it treats saving and debt payoff as the same kind of progress. That makes it a fairer measure than your salary, and a far more useful one than your current account.
Build your net worth tracker in four steps
- Make two lists. Assets go down one side: current account and savings balances, your pension pot, any investments, your car's rough sale value, and your home's rough value if you own it. Liabilities go below: credit card balances, loans, car finance, any overdraft, and the mortgage balance.
- Add up each list. Rough figures are fine. This is a photograph, not an audit.
- Subtract. Total assets minus total liabilities is your net worth.
- Repeat it on the same day each month. Keep every month as its own row or column. The history is what turns one number into a trend, and a spreadsheet does the adding and subtracting so you only type in new balances.
A worked example: Emma's first six months
Meet Emma, an invented example. In her first count she owns £800 in her current account, £2,400 in savings, a car worth roughly £6,500 and a pension pot of £14,000, so her assets total £23,700. She owes £1,900 on a credit card and £4,300 on her car finance, so her liabilities total £6,200.
Emma's net worth: £23,700 minus £6,200 = £17,500.
No single account shows her that number. Her banking app shows £800 and feels tight. Her pension statement shows £14,000 and feels irrelevant. Only the combined figure shows what is actually true. Here is Emma's net worth tracker for six months. Every figure is illustrative, not a real person's account.
| Month | Total assets | Total liabilities | Net worth | Change on the month |
|---|---|---|---|---|
| Start | £23,700 | £6,200 | £17,500 | n/a |
| Month 1 | £23,800 | £5,950 | £17,850 | +£350 |
| Month 2 | £24,150 | £5,330 | £18,820 | +£970 |
| Month 3 | £24,050 | £4,710 | £19,340 | +£520 |
| Month 4 | £24,200 | £4,540 | £19,660 | +£320 |
| Month 5 | £24,350 | £3,820 | £20,530 | +£870 |
| Month 6 | £24,750 | £2,700 | £22,050 | +£1,520 |
What moved each month:
- Month 1: she paid £250 off her credit card and put £100 into savings.
- Month 2: she paid £300 off the card and £320 off the car finance, her savings rose by £200 and her pension grew by £150.
- Month 3: the car lost £250 in value, which cars do. She paid £300 off the card, £320 off the finance and added £150 to savings.
- Month 4: a £400 repair went on the credit card. She paid £250 off the card and £320 off the finance, put nothing into savings, and her pension grew by £150.
- Month 5: she paid £400 off the card and £320 off the finance, added £200 to savings, and the car lost £200 in value while her pension grew by £150.
- Month 6: she cleared the credit card with a final £800 payment, paid £320 off the car finance, added £250 to savings, and her pension grew by £150.
Over six months her net worth rose by £4,550, from £17,500 to £22,050. Month 3 is worth noticing: the car lost value and savings rose by only £150, yet the number still rose by £520, because the debts fell. Month 4 is the one that tests the habit. The repair pushed the card up before the payment pulled it down, and the number still climbed by £320.
Why paying off debt counts as getting richer
Here is the part that changes how people feel about their money. In Month 1, Emma pays £250 off her credit card and puts £100 into savings. She "only saved £100", so it feels like a slow month.
But look at the number. Her debts fell by £250 and her assets rose by £100, so her net worth went up by £350, to £17,850. Paying off debt raises your net worth pound for pound, exactly like saving does, because owing £250 less and owning £250 more are the same distance travelled.
This is why net worth is such a kind number for anyone paying down debt. Month after month of payments can feel like running to stand still, because the savings account never grows. The tracker shows the truth: every payment was progress the whole time. It is also why "should I save or pay off debt?" matters less than people fear. From net worth's point of view, both move you in the same direction, though it is still worth keeping a small emergency fund first, so a surprise bill does not go straight back on the card.
What to include for UK readers
A few honest notes for UK readers, because they are where most trackers go wrong:
- Your pension counts. It is yours even though you cannot touch it yet. Use the latest statement value, and use the same basis every month.
- Your home counts as its value minus the mortgage. List its rough value as an asset and the mortgage balance as a liability, and the gap between them is what you own outright.
- Student loans are the odd one out. Repayment works more like a graduate tax, and many loans are eventually written off, so plenty of people track them separately or leave them out entirely.
- Use a car's rough sale value, not what you paid. That is why the car line dips in the table above.
Pick one approach and stay consistent, because consistency is what makes the trend readable.
Twelve numbers a year
You do not need to watch net worth daily. Checking money obsessively burns people out, and never checking is how five years disappear. The habit that works is once a month, on the same day: update the balances, write down the number.
Two things to expect, so they do not rattle you:
- It will dip some months. Cars lose value, markets wobble, Decembers happen. A dip in a rising line is noise. The trend across six or twelve months is the signal.
- A negative net worth is normal at the start. If you are early in your working life with a student loan and a car on finance, owing more than you own is common. It is not a verdict; it is a starting line. The number exists so you can watch it climb.
Watch the line, not the balance
Once you have twelve months of numbers, something changes. You stop asking "how much is in my account?" and start asking "which direction is my line going?" That is a much better question. It is the difference between a bank balance, which describes this week, and wealth, which describes your life.
How to do it in the planner
The Net Worth Tracker is a Google Sheets template that does this for you. You enter your assets and debts once, update the balances each month, and it charts your net worth month over month, so the trend line draws itself. You enter every figure yourself, so nothing connects to your bank, and the sheet lives in your own Google account. There is also an optional AI coach. It works through a provider you choose and only receives figures and first names, never the full picture.
If you would rather track your budget, bills, sinking funds and debt in one place, the All-in-One Budget Planner includes net worth alongside the rest.
Fifteen minutes this week gets you your first number. Next month gets you your first trend.
This is general information, not financial advice. The figures in this post are illustrative.
Frequently asked questions
What counts as an asset when calculating net worth?+
Anything of real value you own: bank and savings balances, pension pots, investments, your car's rough sale value, and your home's value if you own one. Use rough, honest figures. Everyday possessions like furniture and clothes are usually left out because you would never sell them.
Should I include my pension in my net worth?+
Yes. Your pension is your money, even though you cannot access it yet, and for many people it is their largest asset after their home. Leaving it out understates your position and hides years of genuine progress.
What if my net worth is negative?+
That is common, especially early in your working life with a student loan or car finance, and it is not a verdict. Track it anyway, because every debt payment from here raises it, and watching a negative number climb towards zero is some of the best motivation there is.
How often should I calculate my net worth?+
Once a month is ideal. It is frequent enough to show a real trend within a year, and infrequent enough that normal wobbles, like car depreciation or market dips, do not rattle you. Pick the same day each month and write the number down.