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:

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.

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.
Popular Real Estate Terms
The return by owners of a property investment usually through a depreciation allowance. a clause in a contract permitting the prior owner of real estate to recover under certain ...
Primary horizontal support for a structure such as a house. It may be a large piece of wood, stone, iron, or other material that lies across the walls, and serves as support of the ...
The meaning of a grace period refers to a specific time after a payment’s due date. During this period, one can reimburse the amount without penalty, extra costs, or forfeiture. Find ...
Real estate, home and life insurance use numerous ambiguous terms you should know because you can significantly benefit from them. Let’s discover what the word boot usually applies to ...
For real estate investors, the vacancy and credit loss is a way to determine a property’s potential for profit. This value is determined by subtracting the losses brought by vacant ...
Method of eliminating the spaces between the solid fragments in fresh cement or mortar during the mixing process. This is done by a combination of constantly mixing, turning, centrifuging, ...
Welcome to the world of magical yet perplexing real estate! Undeniably, there's a lot to learn, but we're here to explain miscellaneous terminology so that you can make educated decisions. ...
Everyone is aware of the perplexing complexities of a real estate transaction. Enter Opendoor, a company that aims to simplify this experience. If you're a house hunter, seller, real estate ...
Vendee refers to a person to whom something is sold. The meaning of vendee is a buyer of goods and services. A more common term for vendee is a purchaser. While a vendor is a seller, the ...
Have a question or comment?
We're here to help.