What is the Interest Rate on a Mortgage? TIN vs TAE with Practical Examples

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What is the interest rate on a mortgage? <\/b><\/p>

The interest rate<\/b> on a mortgage is the percentage that the bank charges you for lending the money needed to buy a property. It is essentially the “price” of the borrowed money.<\/p>

This interest is reflected in the monthly payment you make to the bank, along with the repayment of the borrowed capital.<\/p>

Types of mortgage interest rates<\/b><\/p>

There are three types of mortgage interest rates:<\/p>

- Fixed:<\/b> The monthly payment does not change throughout the life of the loan.
- Variable:<\/b> The interest is reviewed periodically (usually every 6 or 12 months) according to a reference index, such as the Euribor<\/a>.
- Mixed:<\/b> It starts with a fixed-rate period and, after that period, becomes variable.<\/p>

Example of fixed-rate payment calculation<\/b><\/p>

Let's assume a mortgage of €150,000 over 25 years with a fixed interest rate of 3% TIN:<\/p>

Monthly payment = €711.32<\/p>

This is calculated using French amortisation formulas or mortgage simulators.<\/p>

Example of a variable mortgage<\/b><\/p>

Mortgage of €150,000 over 25 years with Euribor + 1% (current Euribor at 2%):<\/p>

Initial interest rate: 3%
Initial monthly payment = €711.32<\/p>

If the Euribor rises to 3%, the payment could increase to €790.24.<\/p>

Difference between TIN and TAE<\/b><\/p>

TIN (Nominal Interest Rate):<\/b> It is the percentage that indicates what you will pay annually for the loan, excluding fees and commissions. It is the “pure” rate.<\/p>

TAE (Annual Equivalent Rate):<\/b> It reflects the total effective cost, including interest, opening fees, notary fees, linked insurances, etc. It is the best reference for comparing mortgages.<\/p>

Practical example TIN vs TAE:<\/b><\/p>

- TIN: 3%
- Fees and expenses: 0.5% annually
- TAE: 3.55%<\/p>

The TAE will always be equal to or higher than the TIN because it incorporates all associated costs.<\/p>

What affects the interest rate on a mortgage?<\/b><\/p>

Factors such as:<\/p>

• The financial profile of the applicant<\/li>
• The loan amount relative to the property's value (LTV)<\/li>
• The repayment term<\/li>
• Market conditions (Euribor, monetary policy)<\/li>
• Linked products (insurances, direct debit salary)<\/li> <\/ul>

  Conclusion<\/b><\/p>

  Understanding the interest rate on a mortgage<\/b> is essential to calculate how much you will actually pay. You should always look at the TAE when comparing offers between banks and use simulators to know the impact on your monthly payments.<\/p>

  Check the conditions of each entity and make sure you understand the difference between TIN and TAE before signing.<\/p>

  If you want to make personalised calculations, you can use this official mortgage simulator from the Bank of Spain<\/a>.<\/p>