Finance

Borrowing interest: calculation and role in the total cost of your mortgage loan

Borrowing interest: calculation and role in the total cost of your mortgage loan

Apr 6, 2021

4 minutes

Given the sums at stake when acquiring real estate for rental investment, it is very common to resort to a mortgage.

Loan interest

When it comes to mortgage credit, it also means loan interest. Loan interest is a complex but unavoidable subject for most buyers of real estate. This interest is an amount that you will pay to the bank (gradually) throughout the duration of your credit, with the aim of compensating the bank for the risk it took in lending you this money. 

The amount of this interest is therefore theoretically a reflection of 3 elements:

  • The perception of the risk that represents for the bank the fact of lending you this money. The riskier it is, the more it expects in terms of interest in return. Lending to a couple with €30,000 in monthly income, an already established real estate asset, and with a significant down payment is of course less risky than lending to a 25-year-old single person in a probationary period in their first job.

  • The rate at which it finances itself (from central banks) - if it finances itself at 0.5% to borrow the money it lends to you, it will make its margin on the rate it applies to you.

  • The perception of your potential as a client, which can lead a bank to lower the rate it offers you to prevent you from going to another bank. As with the assessment of risk, it will be easier for a bank to see your potential if you already have significant resources...

The "floor rates" (meaning "so low that they can hardly decrease further") currently practiced make it difficult for a bank to achieve a sufficient margin on your loan to finance all its activities. 

How does the bank really make money from your credit?

First, she will often ask you to subscribe to other of her products (life insurance, regulated investments, securities accounts, homeowners insurance, borrower insurance) in exchange for the fact that she agrees to finance your acquisition. This is really how she will finance herself with you.

Then, she will invest the money you have deposited with her (checking accounts, etc.) in more profitable products than what she pays you. This is also why banks are very active in real estate and private investment funds.