Essential Guarantees in Mortgage Insurance Coverage

Why mortgage insurance guarantees really matter

When planning a property purchase, most people focus on the loan rate (around 3.6% in 2024) and forget the impact of the insurance rate (taux_assurance). Yet mortgage insurance can account for 20–40% of the total cost of credit. Understanding the guarantees (death, disability, incapacity, unemployment) is essential to make an informed buy or rent decision.

To compare buy or rent properly, you need to factor in:

• the loan rate (~3.6% today),
• the insurance rate (taux_assurance), often 0.25–0.45% p.a.,
• notary fees (7–8% for existing, 2–3% for new-build),
• annual rent increases via the IRL index,
• property tax and its yearly revaluation,
• the investment rate if you stay a tenant,
• agency fees, renovation costs, inflation, etc.

The buy-or-rent.net / acheter-ou-louer.com simulator explicitly includes taux_assurance so you can see how insurance reshapes the economics of buy or rent.

Understanding the insurance rate (taux_assurance)

The insurance rate is expressed as an annual percentage of the loan amount (initial or outstanding). In 2024, typical ranges are:

• 0.25–0.45% p.a. for standard profiles with external insurers,
• up to 0.70–1.00% p.a. for higher-risk profiles (health, job, sports).

Two main calculation methods:

• On initial principal: almost flat premium over time; simple but often more expensive overall.
• On outstanding balance: premium decreases as you repay; more efficient over the long run.

Numeric example: impact of taux_assurance

Assume a €300,000 loan over 25 years:

• Loan rate: 3.6%
• Insurance rate: 0.35% on initial principal

1) Insurance cost

• Annual premium: 300,000 × 0.35% = €1,050 / year
• Over 25 years: 1,050 × 25 = €26,250

2) Interest cost (approximate, excluding insurance):

• Monthly payment excl. insurance ≈ €1,520
• Total interest ≈ €156,000

Insurance therefore represents about 17% of the combined interest + insurance cost. In any serious buy or rent comparison, ignoring this item will distort the result versus the alternative of renting and investing (ETFs, savings, etc.).

Death coverage: the non‑negotiable base guarantee

Death coverage is required by lenders. If an insured borrower dies, the insurer repays part or all of the remaining loan, depending on the coverage share (quotity).

Coverage share: 50/50 vs 100/100 for couples

For a couple:

• 50/50: each borrower is insured for 50% of the loan.
• 100/100: each is insured for 100% of the loan (double coverage).

Example: €300,000 joint mortgage.

• With 50/50: one dies → insurer repays €150,000; the survivor continues to repay €150,000.
• With 100/100: one dies → insurer repays €300,000; no more monthly payments.

Higher coverage shares mean a higher taux_assurance, and therefore a more expensive "buy" scenario in a buy or rent analysis. Over 20–25 years, this can shift the balance.

Permanent disability (PTIA, IPT, IPP): securing your repayment capacity

In addition to death, contracts typically include disability guarantees:

• PTIA: total and irreversible loss of autonomy, often packaged with death coverage.
• IPT: total permanent disability (usually ≥ 66%).
• IPP: partial permanent disability (33–66%, depending on the contract).

When disability is recognized according to the contract’s criteria, the insurer covers some or all of the monthly payments or remaining principal.

Example: financial impact of disability

Loan of €250,000 over 20 years, loan rate 3.6%, taux_assurance 0.30%.

• Monthly payment excl. insurance ≈ €1,470
• Insurance premium ≈ €62.50 / month (250,000 × 0.30% / 12)

After 8 years, the borrower has an accident resulting in total permanent disability:

• Outstanding balance ≈ €180,000
• IPT/PTIA coverage may take over 100% of future monthly payments or repay part/all of the €180,000.

In the "rent + invest" scenario (you choose to rent and invest at, say, a 4–6% investment rate), you do not automatically get this debt-cancellation mechanism. You do have a financial portfolio, but it behaves differently. A robust buy or rent simulator must capture this nuance.

Work incapacity (ITT): keeping payments flowing during sick leave

The temporary total incapacity (ITT) guarantee covers extended sick leave. It can:

• pay some or all of your monthly instalments after a waiting period (30, 60, 90 days),
• work on a fixed indemnity basis (the monthly payment) or loss-of-income basis (actual income loss).

Example: sick leave and monthly payments

Loan of €200,000 over 20 years, monthly payment excl. insurance ≈ €1,170, insurance rate 0.28% (≈ €47 / month). The borrower faces a 9‑month sick leave:

• During the 90‑day waiting period: no coverage.
• Then: the insurer may cover the €1,170 monthly payment for 6 months, i.e. about €7,020.

This guarantee increases taux_assurance and therefore makes the "buy" scenario more expensive versus renting. But it also lowers the risk of forced sale or default in case of hardship.

Unemployment coverage: optional and often limited

Unemployment coverage is optional and relatively expensive. It typically covers layoffs (not resignations, and often excludes or restricts voluntary terminations) and comes with many conditions:

• minimum employment history,
• permanent contract required,
• cap on the covered monthly payment,
• maximum benefit duration (often 12–24 months).

Example: cost vs benefit of unemployment coverage

For a €300,000 loan over 25 years:

• Base insurance (death + disability + ITT): 0.30%
• With unemployment option: 0.45%

Cost difference:

• 0.15% × 300,000 = €450 / year
• Over 10 "riskier" years: ≈ €4,500

In return, if you lose your job and meet all criteria, the insurer may pay part of your monthly payments for a while. This extra insurance cost weighs on the "buy" side in a buy or rent comparison, but it provides a safety net that renting alone does not.

How taux_assurance changes the buy or rent equation

An honest buy or rent comparison must include:

• loan monthly payment (at 3.6%),
• insurance premium (taux_assurance),
• property tax (often +€1,000–3,000 / year) and its annual increase,
• service charges, maintenance, renovation (including energy/DPE upgrades),
• alternative: rent + investment of freed-up cash at a realistic investment rate,
• annual inflation, which erodes purchasing power and pushes up rents and property tax.

Simplified scenario: buy vs rent with insurance included

Assume you hesitate between buying an apartment and renting for 20 years.

Buy option

• Price: €280,000
• Notary fees (existing property, 7%): €19,600
• Loan amount: €280,000 (assuming you pay fees in cash)
• Loan rate: 3.6%, term: 20 years
• Insurance rate: 0.35% on initial principal

Approximate figures:

• Monthly payment excl. insurance ≈ €1,650
• Insurance: 280,000 × 0.35% / 12 ≈ €81.67 / month
• Total insurance over 20 years ≈ €19,600

On top of that:

• Property tax: €1,200 / year, revalued +2% annually,
• Maintenance: roughly 1% of price per year on average (~€2,800), highly dependent on condition and energy upgrades.

Rent option

• Starting rent: €1,100 / month
• Annual rent increase: 2% (close to recent IRL values)
• You invest the cash you do not tie up in buying (notary fees, property tax, maintenance, part of the payment gap) at a 4% net investment rate.

In this comparison, taux_assurance raises the housing cost from €1,650 to around €1,732 per month. Over 20 years, that’s tens of thousands of euros that must be weighed against the property’s future value and the financial assets you might accumulate if you choose to rent.

The goal is not to say that it is always better to buy or always better to rent, but to quantify precisely how each parameter – especially insurance coverage – affects your long‑term net worth.

Other insurance‑related parameters to watch

Prepayment penalties and insurance switching

If you sell or repay early:

• Prepayment penalties are capped at 3% of the remaining balance or 6 months’ interest.
• You can often switch insurers during the loan, cutting your taux_assurance and improving the economics of buying in a buy or rent comparison.

Risk profile and surcharges

Your health, job and lifestyle (smoking, risky sports) can trigger extra premiums, raising taux_assurance:

• Standard profile: 0.30% → insurance over 20 years ≈ €16,800 (for €280,000).
• Higher‑risk profile: 0.60% → ≈ €33,600, i.e. €16,800 more.

This gap can materially change the result in a buy or rent simulator, especially in markets where rents are relatively cheap compared to purchase prices.

Using a buy or rent simulator that includes taux_assurance

A robust buy or rent analysis should integrate:

• the loan rate,
• the insurance rate (taux_assurance) and coverage level (death, disability, ITT, unemployment),
• property tax and its annual revaluation,
• notary fees, agency fees, renovation costs (including energy upgrades),
• inflation and rent indexation (IRL),
• the investment rate on your savings if you stay a tenant.

The acheter-ou-louer.com / buy-or-rent.net simulator lets you tweak taux_assurance, loan duration, tax assumptions and investment returns to see how each scenario – buy or rent – affects your wealth in 10, 20 or 25 years.

Conclusion: mortgage insurance is both a cost and a shield

The key guarantees in mortgage insurance – death, disability, incapacity, optional unemployment – are neither a minor add‑on nor a detail to be chosen blindly. They:

• protect your household and your lender,
• make up a significant share of total loan cost via taux_assurance,
• change the financial balance between buying and renting.

There is no universal answer to whether you should buy or rent; it depends on your situation, your risk profile, your time horizon and your local market. This article is for information only and does not constitute personalized financial advice.

The most effective way to decide is to simulate several scenarios: different coverage levels, different insurance rates, and a realistic rent‑plus‑investment plan. Then compare the outcomes rather than relying on rules of thumb.

Simulate your situation on buy-or-rent.net (or acheter-ou-louer.com) to see how mortgage insurance guarantees and taux_assurance affect your personal buy or rent decision.