Understand yourdebt ratioallows you to better anticipate borrowing risks and adjust your financial decisions. This ratio remains the main criterion of banks to grant credit, but it can also help you avoid tense situations and optimize your remaining lives. In this article, find the calculation methods, the thresholds that are authentic, concrete examples, and ways to adjust your rate. — all thought for a fast and mobile reading.
The debt ratio explained in practice
The debt ratio measures the proportion of your monthly net income occupied by your credit refunds. This data indicates your flexibility and ability to cope with loads.
Formula:(total monthly credits/net monthly household income) × 100
- Only current monthly payments are taken into account, not the total amount of debts.
- Example calculation: a family that reimburses 600 € for a real estate credit and 200 € for a car credit on a net income of 3,000 € :
Calculation: (600 + 200) / 3,000 × 100 = 26.67 %
A debt ratio remains a direct indicator: it shows whether your finances can follow a new burden or whether you should reduce your commitments.
The banking thresholds to be met
Banks usually hold a 33 per cent threshold: your repayments must not exceed one third of your income to keep a margin of security. Exceptions exist but require a strong profile (high income, stable contract, reliable history).
- Standard threshold:33 %
- Enhanced tolerance: up to35 %for CDI with comfortable income
- Premium profile: possible up to40 %if the risk absorption capacity is demonstrated
Overtaking these rates makes access to credit difficult. Conditions (interest rates, insurance) may be less advantageous. Also be aware of the risk in case of unforeseen circumstances: a loss of income or unforeseen expenses can quickly weaken the budget.
| Debt threshold | Typical situation | Consequences |
|---|---|---|
| 33 % | Standard profile | Access to credit facility |
| 35 % | CDI, high incomes | Possible negotiation |
| 40 % | High-end household | Enhanced condition submission |
Steps to calculate your debt rate
- List all credit monthly payments (real estate, car, personnel, revolve).
- Add similar obligations: maintenance, long-term rental.
- Exclude current expenses (cash, taxes, non-taxed subscriptions).
- Use only the regular net income: salary, stable income, rental income after expenses.
Example:
- Real estate credit: 800 €/month
- Auto credit: 150 €/month
- Personal loan: 200 €/month
Total monthly payments:1 150 €
Net monthly income:3 500 €
Result: (1 150 / 3,500) × 100 = 32.86 %
What income should be included?
- Salary: net after taxes and levies
- Regular premiums (breakdown over 12 months)
- Net rental income after expenses (often 70% due to bank prudence)
- Independent income: average over 2–3 years
Banks favour regularity and stability more than one-off gains. Evidence is systematically requested (payroll, balance sheets, tax notices).
Tools and variants to adjust the calculation
- Bank Simulators: Test different scenarios (contribution, renegotiation, consolidation).
- Annual calculation: useful for irregular budgets or seasonal income.
- Repurchase credit: group your monthly payments, lower the debt rate, but monitor the overall incremental cost.
- Still to liveCheck that the remaining amount covers your current needs, even if the debt ratio is correct.
In the event of a high debt ratio: action levers
- Early repayment (mobilizable savings)
- Renegotiation or extension of loan term
- Increase in your earnings (overtime, secondary)
- Repurchase of credits with cost study
- Reduction in current charges (subscriptions, contracts, non-essential costs)
Each option involves arbitration: calculate the impact on total cost and your financial stability.
To maximize your chances of getting a loan while maintaining your financial balance, discover our advice onreal estate credit: 6 key steps to get the best rate.
In order to avoid borrowing-related over-indebtedness, it is essential to understand the specificities of a debtRenewable credit card: instructions for use, costs and precautions to know.
For a successful real estate project, find out how the calculation of your debt ratio can guide you in choosing thebest rate: which bank choose for its real estate credit in 2025.
Risks of high rates and concrete consequences
Too high a debt ratio can block access to new credit or lead to stricter conditions or even refusal. Banks then report your case and the situation can deteriorate: late payment, registration in the FICP file managed by the Banque de France, use of costly solutions and lasting financial stress. Maintaining a healthy ratio remains the basis for long-term fiscal stability.
How to keep control over your debt rate?
- N
- Avoid risky solutions (credit revolving, poorly anticipated fixed charges)
- Think about paying off small loans if money comes back
- Put in place regular savings to cushion unforeseen events
- Use tracking tools (bank applications, commitment tables)
Anticipating, adjusting your consumption habits and monitoring your commitments will allow you to keep a margin of safety and act quickly when needed.
Summary: Approaching your debt rate in a factual way, identifying your regular expenses and revenues, facilitating access to credit and protecting your finances from major risks. Tools, simulators and practical examples give you the means to stay in control of your decisions.
In your opinion, what method do you use to track your debt rate? Tips or tools to share? Don't hesitate to comment to enrich the feedback or share this article around you — Controlling the debt ratio remains a concrete challenge for all!
Do you want to deepen or follow the evolution of banking criteria? Please refer to the resources of the Banque de France or the information pages on credit buyback for a detailed analysis.
Author: Fabien Durand, specialist in banking and budget optimization. Updated: June 2024.