Gross vs Net Wealth: Why Debt Belongs in the Equation

Wealth reads as a balance sheet: assets minus liabilities. Ignoring debt distorts every diagnosis of the real situation, and reduces structural fragility to a single, often flattering, number.

The spontaneous reflex when discussing wealth is to enumerate what one owns: a property, an account, a portfolio. That inventory is half a balance sheet. A wealth profile is read as assets and liabilities: the same accounting logic a company applies to measure its own solidity. A household owning a property worth €300,000 with a residual mortgage of €250,000 does not hold the same wealth as a household with neither debt nor property, even if the gross figures look comparable. The gross-versus-net distinction is elementary in corporate accounting and almost absent from personal finance discourse. Yet it is the only frame that captures the actual situation.

Gross wealth: an inventory, not a measurement

Gross wealth aggregates the value of all assets held: real estate, financial savings, investments, vehicles, valuables. INSEE’s 2020-2021 Patrimoine survey put the median gross wealth of French households at €177,200 in early 2021, with an average of €317,100, a dispersion pulled by the wealthiest households. The same survey already measures the gap this article is about: net of debt, the median falls to €124,800 and the average to €274,000, 29.6% and 13.6% lower.

The flaw of this reading is that it produces a flattering but incomplete picture. A household owning a property valued at €350,000, €30,000 in savings and a portfolio of €20,000 displays gross wealth of €400,000. That number says nothing about its actual situation if a €280,000 mortgage and a €15,000 auto loan sit on the other side of the balance sheet. Gross wealth is an inventory. It does not measure solidity, room to maneuver, or resilience to a shock.

Net wealth: the only operational figure

Net wealth is computed straightforwardly: total assets minus total liabilities. In the previous example, the real figure comes to €105,000, and only this figure reflects what would remain if all assets were sold and all debts repaid.

INSEE and Banque de France aggregate this balance sheet for the country as a whole in the national balance sheet accounts. At end-2024, households held €17,063 billion of assets against €2,112 billion of financial liabilities, of which €1,768 billion in loans, leaving net wealth of €14,953 billion (Insee Première no. 2081, November 2025). The aggregate debt ratio comes to 10.4% of gross wealth counting loans alone, or 12.4% counting all financial liabilities. That aggregate masks highly contrasted individual situations: a recent first-time buyer can display a debt ratio of 80% to 90%, while a debt-free senior owner shows a ratio of zero. Directly related: The mapping of the tools for stress-testing decisions.

This dispersion is what makes the balance-sheet reading indispensable. Two households with identical gross wealth can be in radically different positions depending on the weight of their liabilities. One has room to maneuver. The other is structurally constrained, and the constraint will only surface in adverse conditions.

The structure of liabilities, not just the total

Liabilities cannot be reduced to a single overall amount. Their structure (residual maturity, rate, amortization schedule) changes the reading of the balance sheet. A €200,000 fixed-rate mortgage with fifteen years remaining and a €20,000 variable-rate consumer loan over three years do not weigh on wealth in the same way.

A fixed-rate mortgage is predictable. Its monthly payment is known, its horizon defined, and its real cost decreases with inflation. Consumer credit, at markedly higher rates (6.4% in January 2026 on new contracts excluding overdrafts and revolving credit, against 3.05% for house purchase, on Banque de France interest rate statistics), bears more heavily on the current budget and erodes savings capacity. In corporate accounting, long-term and short-term debt are distinguished precisely because they do not have the same implications for cash flow and solvency. The same logic applies to household wealth, even if it rarely appears in personal finance commentary.

The debt-service ratio, the share of net income devoted to debt repayment, completes the reading. The Haut Conseil de stabilité financière capped this ratio at 35% of net income for mortgage loans, in force since 2022. That cap is a regulatory constraint on banks at origination, not a measure of household wealth. A household whose debt-service ratio sits at 34% is technically below the threshold, yet its capacity to absorb an unexpected event is close to zero.

What a complete balance sheet reveals

Drawing up a wealth balance sheet (assets classified by nature and liquidity on one side, liabilities classified by maturity and cost on the other) produces a far richer picture than a single gross figure. Three structural indicators emerge from this exercise.

The debt-to-asset ratio (total liabilities / total assets) measures overall leverage. No agreed alert threshold exists for that ratio taken on its own: the ECB reads it as an insolvency signal only above 100%, and the 60% documented by the BIS applies to household debt measured against GDP, not against the balance sheet (Lombardi, Mohanty and Shim, January 2017, where long-run effects on consumption intensify above 60% of GDP and effects on growth above 80%). The threshold that does exist for a household applies to the flow rather than the stock: the ECB cites the 30% debt-service ratio commonly used to flag financial fragility, against a median of 13.5% of gross income for an indebted euro area household (Financial Stability Review, May 2017). The liquidity ratio (liquid assets / short-term liabilities) captures the capacity to absorb a shock without selling an illiquid asset. A household where most wealth is real estate and where precautionary savings cover less than three months of fixed expenses sits in a vulnerable position, even with positive net wealth. The debt-service ratio measures the pressure of liabilities on current income, and therefore residual savings capacity.

Read together, these three indicators draw a wealth profile that a single gross figure cannot reach. They make it possible to identify zones of fragility (excessive concentration in an illiquid asset, insufficient precautionary liquidity, weight of liabilities on the current budget) and to frame the terms of an informed trade-off. This is the reading that underlies the distinct balance-sheet roles of primary residence, savings and investment. Each occupies a different position in the asset-liability architecture of wealth.

One final point deserves attention. Net wealth evolves over time, not only because assets appreciate or depreciate, but also because liabilities are paid down. The interest share of each payment falls without interruption, and the capital share rises accordingly. On a €200,000 loan at 3.1% over twenty years, interest absorbs 46% of the first payment, 27% of the hundred-and-twentieth and almost none of the last; the household has repaid €84,600 of principal after ten years, or 42% of it. Net wealth therefore advances from the very first instalment, but faster and faster, even if the property’s value stagnates. Wealth is a process, not a snapshot, and the balance sheet at year five tells a different story from the balance sheet at year fifteen.

This reading framework belongs to the wider set of common wealth trade-offs where every decision (early repayment, increased saving, investment) simultaneously modifies the asset-liability profile of the balance sheet.

Last updated — 6 October 2026