The formula is simple
Net worth equals assets minus debts. Assets are things you own that have financial value. Debts are amounts you owe. The difference is a rough balance-sheet snapshot.
A worked example
Suppose a household has £12,000 in cash, £65,000 in investments and pensions, £80,000 of home equity and £10,000 of other assets. Assets total £167,000. If mortgage debt is £180,000 and other debt is £9,000, debts total £189,000. Estimated net worth is therefore -£22,000.
| Category | Amount |
|---|---|
| Total assets | £167,000 |
| Total debts | £189,000 |
| Estimated net worth | -£22,000 |
Why liquid net worth matters
A home, pension or retirement account can be valuable but hard to access quickly. Liquid net worth focuses more on cash and accessible investments minus non-mortgage debt. It can be a better indicator of short-term resilience than total wealth on paper.
Do not chase false precision
Investment balances can be taken from statements. Cash is straightforward. Property, vehicles and personal items are estimates and may cost money to sell. Use conservative values and update them consistently rather than trying to prove an exact number every month.
Track direction, not ego
Net worth is useful because it shows trend. Paying down debt, building cash and investing regularly can improve the number even when income feels stretched. Falling net worth is a signal to investigate debt, spending, asset prices or one-off events, not a reason for shame.
How often to update it
Monthly or quarterly is enough for most people. More frequent tracking can make normal market movements feel more important than they are. Keep the categories consistent so the trend reflects real progress rather than changing the measurement each time.
Related calculators
Sources and review notes
Examples were independently calculated using the assumptions shown. Regional limits were checked against the official sources below on 5 August 2026.
This guide is educational information, not personal financial, investment, tax or legal advice.