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# How to Calculate Monthly Interest Payments

As real estate investors it is important to understand and master the 4 key real estate loan calculations. These 4 keys include how to calculate a point, simple interest, loan to ARV, and loan to value. One of the most important of these is learning how to calculate the monthly interest payments, because it will impact your monthly budget. So grab your calculator, paper, and a pen!

## How do you calculate your interest rate?

Not only does DSCR have some interest only options, but private money and hard money do as well. Today, we are looking at how to calculate the monthly interest rate on a simple mortgage. Just to clarify, monthly interest and simple interest are one in the same. So, if a lender says that you are going to be charged 11% or 12% on your loan amount, what does that mean? First and foremost, that 11% or 12% is an annual amount not a monthly amount. Let’s jump into an example to see how you calculate the interest rate.

### For example:

Loan for \$150,000

Lender says the interest rate is 11% (this is an annual amount)

\$150,000 x .11 = \$16,500  (this is the interest that is charged on an annual basis)

Now we have to divide it by 12 to determine the monthly interest cost.

\$16,500 ÷ 12 = \$1,375 monthly interest cost

It is important that you know how to calculate your interest rate because that is the monthly amount that is coming out of your pocket.

## In conclusion

All investors should learn to master the 4 key real estate loan calculations no matter how long they have been in the game.  One of the most important is learning to calculate the interest rate. Again, this is the amount of money that will be coming out of your pocket monthly. By being prepared and knowing your numbers, the sky’s the limit to your success. To learn how to master the 3 remaining key real estate loan calculations, please visit our