Effective Interest Rate

Definition of "Effective interest rate"

The term effective interest rate is the actual return from a savings account or any investment where you pay interest when considering the effects of compounding costs over time. Through an effective interest rate, you can fully and correctly determine the real percentage rate that you own on a loan’s interest, a credit card, or any other debt type. 

An effective interest rate is also referred to as an effective annual interest rate, the annual equivalent rate, or the effective rate.

The Effective Interest Rate Formula:

Effective interst rate formula

With:

i = Nominal Interest Rate

n = Number of periods

What does the Effective Interest Rate Mean?

When you look at loans, the way through which they are advertised will give you two types of information. Firstly, we’ll have the nominal interest rate, which doesn’t consider the effects compounding interest or fees have on the financial product. Secondly, and the one we focus on now, the effective interest rate, which gives you the real return paid on savings of the actual cost of a loan because it does take into account the effect fees and compounding interest have on the financial product.

For that exact reason, knowing and understanding what the effective interest rate means is important. Through a proper understanding of the effective interest rate, you can compare offers more accurately to make an informed decision based on the result.

How to Find the Effective Interest Rate?

To adequately explain how to find the effective interest rate from any financial product’s promotional information, we will look at two examples. Firstly, we’ll have Loan A that has a 5% interest rate that’s compounded monthly. Secondly, we’ll have Loan B with a 5.1% interest rate that’s compounded bi-annually.

Both of these loans are advertised with their nominal interest rate. Remember, this is the one that doesn’t take into account the effects fees and compounding interest has on the loan. To calculate the effective interest rate, we’ll use the formula shown above.

Effective interest rate formula application

 

While the nominal interest rate for Loan A is smaller than that of Loan B’s, the effective interest rate from Loan B is lower than that of Loan A’s. This occurs because Loan B has fewer compounding times over the course of a year.

image of a real estate dictionary page

Have a question or comment?

We're here to help.

*** Your email address will remain confidential.
 

 

Popular Real Estate Terms

A binding arbitration is a way to solve disputes without going to court. An alternative to the more expensive and lengthy legal procedures, a binding arbitration is basically the process ...

A legal procedure to sell a mortgage property to the highest bidder in order to satisfy a mortgage claim from a mortgagee against the value o the property. A foreclosure sale can occur from ...

Series of sloping horizontal slats most frequently mounted in doors and windows permitting the passage of air while restricting vision and preventing rain from entering the building. ...

Language commonly used in a fee simple title conveyance. The significance is whether the title is clear and can be passed on to the purchaser's estate including all heirs and those who may ...

(1) The interest rate charged on a construction loan. (2) The rate at which construction loan progress payments are made. See also bridge loan; bullet mortgage; development loan. ...

person's behavior partly genetic and partly learned through experience over time. Some people have good personal traits while others have poor ones. ...

In everyday discourse, a merger defines the combination of two entities, be it real estate or two companies, into a single and legit one. We should make a difference between a merger and ...

Same as term financial institutions: Institutions acting as intermediaries between suppliers and users of money. The financial markets are where those wanting funds are matched with those ...

Interest rate on a loan that varies periodically based on some related measure. If interest rates are currently high and a prospective buyer of a home believes future interest rates will be ...

Popular Real Estate Questions