There is a question almost nobody asks themselves regularly: how much is everything you own worth minus everything you owe? That number is your net worth. It is not the most glamorous metric in personal finance, nor the one that appears most in headlines, but it is the one that best summarises whether your financial situation is improving, stagnating, or deteriorating over time.
Salary, monthly savings, account balance: all are valid metrics. But none of them tell you whether, taken together, you are actually moving forward. Net worth does.
What net worth is and how to calculate it
The formula is simple: assets minus liabilities.
Assets are everything you own that has economic value: money in current and savings accounts, investment funds, shares, pension plans, the portion of your home’s value you have already paid off, and other assets with a real market value.
Liabilities are all your debts: the outstanding capital on your mortgage, personal loans, credit card balances, car loans, any amount you owe that you will eventually need to repay.
Net worth = assets − liabilities.
The result can be positive, negative, or zero. All three are informative. What matters is not the number itself today, but its direction over time: is it growing consistently?
A practical note: there is no need to include illiquid or hard-to-value assets such as furniture, jewellery, or vehicles with uncertain market value. Sticking to liquid or easily valued assets makes the number more useful and less noisy.
Why salary is an incomplete metric
A high salary does not mean wealth if expenses consume everything coming in. Two people earning 60,000 euros a year can have entirely different net worths at the age of 40 depending on the decisions they made in the years before.
Lifestyle inflation is the most common mechanism that prevents salary from translating into wealth. Every time income rises, so do expenses: a better car, a larger flat, more expensive holidays. The result is that the gap between what comes in and what accumulates does not change, even though the salary does.
Net worth captures this effect honestly. If you have had three years of pay rises but your net worth has not grown proportionally, there is a leak worth identifying.
There are also cases where net worth grows on modest income. A person who saves 20% of an average salary, invests it consistently, and avoids unnecessary debt can surpass in wealth someone earning twice as much who spends almost everything they earn. Time and consistency achieve what salary alone cannot.
How to interpret the number at your life stage
A negative net worth is normal and expected in early adulthood. A recent mortgage, student loans, a car loan: all of that weighs on the liability side before assets have had time to accumulate. It is not a warning sign if the debt has a clear purpose and is being managed actively.
As the years pass, what matters is the trajectory. Is the number rising each year? Is debt falling while assets grow? Those are the useful questions, not comparing yourself to averages or to what the person next door has.
Some approximate benchmarks, without treating them as absolute rules:
- Before 30: having a neutral or slightly positive net worth is already a sign of good management if there is training debt or an initial mortgage.
- Between 35 and 45: this is the period where net worth should be growing most forcefully, as income tends to be more stable and debts more manageable.
- From 50 onwards: the typical goal is for investment assets and property value to be significantly greater than any outstanding debt.
These ranges are indicative. What matters is direction and consistency, not static comparison against external benchmarks.
The two levers that move net worth
There are only two ways to grow net worth: increase assets or reduce liabilities.
Increasing assets means saving and investing. Simply keeping money in a current account that loses purchasing power to inflation is not enough. Working assets are those that grow over time: index funds, pension plans, property that appreciates. Time is the multiplier: starting earlier, even with small amounts, has more impact than starting late with larger sums.
Reducing liabilities means paying off debt, starting with the most expensive. Not all debts have the same cost. A consumer loan at 10% annual interest destroys wealth far faster than a mortgage at 2.5%. The usual priority order is: first eliminate high-interest debt, then accumulate investment with expected returns above the cost of remaining debt.
The emergency fund plays a specific role in this framework: it is not an investment asset, but a buffer that prevents a one-off crisis from forcing you to take on new debt or liquidate investments at a bad moment. Its function is to protect progress, not to generate it.
These two levers are not mutually exclusive. Paying debt and saving simultaneously is possible if the budget allows it. What is best avoided is investing in illiquid or high-volatility assets while expensive unresolved debt remains.
How to track it without it becoming a burden
Tracking net worth does not require an hour a day or an elaborate spreadsheet. A quarterly review with a simple structure is sufficient.
The basic framework needs four columns: category, type (asset or liability), current value, change since last quarter. Ten rows is enough: savings accounts, investments, pension funds, property value if applicable, outstanding mortgage, personal loans, and a few more lines depending on your situation.
Two practical criteria for making the tracking stick:
Low frequency, high consistency. A quarterly review that actually happens every quarter is worth more than a monthly one that gets abandoned in the third month. Choose a fixed day (the first Sunday of the quarter, for instance) and block it in the calendar.
Focus on the trend, not the exact figure. Net worth cannot be calculated with absolute precision because some assets have no daily market price. What can be seen clearly is whether the trend is one of growth or stagnation. That is the data point that guides decisions.
The value of this number lies not in obsessing over it, but in using it as a feedback signal. If net worth is not growing despite reasonable income, there is something in the expense flow or the absence of investment worth revisiting. If it grows consistently, that is confirmation that everyday financial decisions are working in the right direction.
