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 proposal to buy property at a specified price. The seller of the property has the options of accepting the offer, rejecting it, or making a counteroffer. For example, John signs a listing ...

Factor employed by real estate agents or appraisers to determine the change needed in operating income to obtain a desired rate of return. It is used to evaluate income-producing property. ...

Reduction of part of the balance of property by charging an expense or loss account. The reason for a write-down is that some economic event has occurred indicating that the asset's value ...

Descriptive of the architectural development of property in a certain area. For example, a housing subdivision may use very similar building architecture throughout the development. All the ...

Principle stating that the joint tenants must have equal rights to possession of the whole property. ...

Landlord's right to receive the value of the tenant's property to pay for unpaid rents or for damages to the leased premises. ...

The definition for the gross living area published by the Appraisal Institute’s Dictionary of Real Estate 4th Edition is: “The total area of finished, above-grade residential ...

Characteristic of a trust that prevents the invasion of its principal by the trustees while providing a lifetime income to its principal beneficiary with the rest going to the son's ...

Under a FHA-insured mortgage, both the property and the borrower must meet certain minimum standards. The borrower is charged an insurance fee of one-half percent on the unpaid balance and ...

Popular Real Estate Questions