What Is a Loan Constant?

By Susan Kelly Updated on Jul 30, 2022
A loan's constant is the percentage of the total loan balance that is paid in interest and principal to the lender. Borrowers that want to pay their lenders less money each year and throughout the duration of the loan want a lower loan constant. The majority of borrowers utilized a loan-constant table to calculate their monthly payments before financial calculators were readily accessible. The loan-to-value ratio and the capitalization rate are two common metrics used by investors to assess the investment potential of a given property.

Loan Constant is a phrase used in finance that is partly similar to cap rates as well as cash on cash since it expresses the cash return towards the lender as a percentage of the outstanding loan total. The principal and interest given back to the lender, divided by the loan amount, is what the constant informs us.

What Is a Loan Constant?

When you make a monthly loan payment, the amount that goes toward paying down the principle is referred to be your "loan constant." It is possible to evaluate various loans depending on how much of your monthly payment goes toward paying down the principle using the loan constant.

In speaking, a higher loan constant suggests a better bargain on a home loan since a greater amount of your monthly payment goes toward principal repayment. It is crucial to note, however, that the loan constant somehow doesn't account for other variables, like interest rates as well as fees, which may potentially affect the ultimate cost of a loan.

The Significance of The Loan Constant for Borrowers

Borrowers need to bear in mind the constant loan while applying for a loan. Rather than paying down the debt, this proportion of your monthly payment goes toward paying down interest. A method of determining how much money is "wasted" on interest costs, in other words. With a smaller loan constant, you'll save money on interest and get closer to purchasing your property sooner.

When comparing loans, the loan constant may be used as a heuristic. It is possible to save money in the long run by comparing two loans with the same interest rate; however, one with a lower loan constant. So, if you're in the market for a mortgage, make it a point to inquire about the loan constant and include it in the decision-making process wherever possible.

Loan Constant Affects Interest Rates

The loan constant may have a considerable effect on interest rates. Loans having varying Loan Constants but otherwise similar will have varied interest rates based on their Loan Constants. As a result, the lower Loan Constant implies that a bigger amount of each payment is dedicated to principle repayment rather than interest payments. As a consequence, less interest will accumulate over time, and the rate of interest will decrease.

Examples Of The Loan Constant in Use

The loan constant may be used to compare various loans and to predict how much cash flow property will produce. For instance, if the loan constant on a piece of real estate is set at 10 percent, this indicates that the owner will be responsible for making interest as well as principal payments totalling $10,000 every single year.

The loan constant may also be used to calculate a loan's monthly payment. For instance, the monthly payment is approximately $833.33 for a loan with a $100,000 principle sum and a 5% interest rate. To conclude, the loan constant may also be used to determine a property's net income. If a property does have a loan constant of 10 percent and is leased out for $1,200 per month, then the estimated cash flow for that property is $120 per month ($1,200 multiplied by 10 percent).

The Future of The Loan Constant

It's critical to think about the long-term health of the loan or the mortgage Constant. An important aspect of how much interest you'll have to pay during the loan's lifespan is the loan constant, which is the proportion of your monthly payment, which thus goes toward principal and interest. The loan constant is low right now because of the low-interest rates.

Your loan's first few years will have fascinating instalments. Your monthly payments would begin to go toward principle more rapidly as interest rates rise, and the loan constant will climb. Even if this results in greater payments in the near term, it may save you money over time. Be sure to inquire about the stability of the loan if you are looking into getting a mortgage. It may pay off in the long run.


The yearly debt payment on a loan is shown as a percentage of the total principal value by a loan constant. The yearly debt service is divided by the entire loan amount to arrive at the loan constant. Before making a selection on loan, consumers may examine the loan constants of different loans.