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Founded in 1976, Bankrate has a long track record of helping people make smart financial choices. We’ve maintained this reputation for over four decades by demystifying the financial decision-making process and giving people confidence in which actions to take next. Bankrate follows a strict , so you can trust that we’re putting your interests first. All of our content is authored by and edited by , who ensure everything we publish is objective, accurate and trustworthy. Our loans reporters and editors focus on the points consumers care about most — the different types of lending options, the best rates, the best lenders, how to pay off debt and more — so you can feel confident when investing your money. Bankrate logo Editorial integrity
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You have money questions. Bankrate has answers. Our experts have been helping you master your money for over four decades. We continually strive to provide consumers with the expert advice and tools needed to succeed throughout life’s financial journey. Bankrate follows a strict , so you can trust that our content is honest and accurate. Our award-winning editors and reporters create honest and accurate content to help you make the right financial decisions. The content created by our editorial staff is objective, factual, and not influenced by our advertisers. We’re transparent about how we are able to bring quality content, competitive rates, and useful tools to you by explaining how we make money. Bankrate.com is an independent, advertising-supported publisher and comparison service. We are compensated in exchange for placement of sponsored products and, services, or by you clicking on certain links posted on our site. Therefore, this compensation may impact how, where and in what order products appear within listing categories. Other factors, such as our own proprietary website rules and whether a product is offered in your area or at your self-selected credit score range can also impact how and where products appear on this site. While we strive to provide a wide range offers, Bankrate does not include information about every financial or credit product or service. Some lenders use a tricky strategy known as the rule of 78 to ensure that you pay more for your loan up front thanks to pre-calculated interest charges. When the rule of 78 is implemented, you pay interest in a way that ensures that the lender gets its share of profit even if a loan is paid off early. Using this rule, a $5,000 personal loan with an interest rate of 11% over 48 months and a $150 monthly payment would incur an interest charge of $89.80 in the first repayment month. Meanwhile, if your loan were calculated using the simple interest method, your interest charge in the first month would be $45.83 — almost 50% less. Fortunately, the rule of 78 was outlawed nationally starting in 1992 for loans that last longer than 61 months, though it might still not apply in every state regardless of the loan term. What is the rule of 78
When the rule of 78 is implemented, you pay interest in a way that ensures that the lender gets its share of profit even if a loan is paid off early. It’s a method of calculating and applying interest on a loan that allocates a larger portion of the interest charges to the earlier loan repayments. The rule of 78 may still be used by some, but not many, lenders. It is widely viewed as unfair to borrowers who may decide to get out of debt. Borrowers pay more with the rule of 78 than with simple interest. Under the Rule of 78, a lender weighs interest payments in reverse order, with more weight given to the earlier months of the loan’s repayment period. How the rule of 78 benefits the lender
It’s critical to understand what type of financing will be applied to your loan’s repayment plan, particularly if you intend to pay the loan off ahead of time. The interest structure of the rule of 78 favors the lender over the borrower in a few ways. “If a borrower pays the exact amount due each month for the life of the loan, the rule of 78 will have no effect on the total interest paid,” says Andy Dull, vice president of credit underwriting for Freedom Financial Asset Management, a debt relief company. “However, if a borrower is considering the possibility of paying off the loan early, it makes a real difference. Under the terms of the Rule of 78, the borrower will pay a much greater portion of the interest earlier in the loan period.” In other words, under the rule of 78, there is little benefit or savings to be achieved by paying a loan in full well ahead of schedule. How the rule of 78 affects loan interest
The pre-calculated interest charges applied under the rule of 78 ensure that a lender makes a profit. It also makes it harder (if not impossible) for borrowers to benefit from any interest savings that might otherwise be achieved by . To use the rule of 78 on a 12-month loan, a lender would add the digits within the 12 months using the following calculation: 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 = 78 Note that a 12-month loan comes with a rule of 78, but a 24-month loan would follow the rule of 300, since the numbers would add up to that amount. Loans that last 36 months, 48 months and so on would follow the same format. The lender allocates a fraction of the interest for each month in reverse order. For example, you would pay 12/78 of the interest in the first month of the loan, 11/78 of the interest in the second month and so on. The result is that you pay more interest than you should. Additionally, the rule of 78 ensures that any extra payments you make are treated as prepayment of the principal and interest due in subsequent months. Calculating interest with the rule of 78
Imagine you are in the unfortunate position of having a loan that uses the rule of 78. In that case, you would be asked to pay a pre-calculated percentage of your total interest, not taking into account your current principal balance. Consider this example, which shows how your interest charges would look for a 12-month loan with $2,000 in interest charges if a lender used the rule of 78 over the life of the loan. Month of loan repayment Portion of interest charged Monthly interest charges 1 12/78 $308 2 11/78 $282 3 10/78 $256 4 9/78 $230 5 8/78 $206 6 7/78 $180 7 6/78 $154 8 5/78 $128 9 4/78 $102 10 3/78 $76 11 2/78 $52 12 1/78 $26 As you can see, the rule of 78 packs the loan with more interest up front. If you pay your loan according to the initial repayment schedule, the rule of 78 and the simple interest method would cost the same total amount. However, if you try to repay your loan early by making additional payments, under the rule of 78, that extra money will be counted toward future payments and interest. That’s not good news if you’re trying to get out of debt faster and save money along the way. How is the rule of 78 different from simple interest
While the rule of 78 can be used for some types of loans (usually for subprime auto loans), there is a much better (and more common) method for lenders to use when : the simple interest method. With , your payment is applied to the month’s interest first, with the remainder of the monthly payment reducing the principal balance. Simple interest is only calculated on the principal of your loan amount, so you never pay interest on the accumulated interest. Unlike the rule of 78, where the portion of the interest you pay decreases each month, simple interest uses the same daily interest rate to . The amount you pay in interest will still go down as you pay off your loan since your principal balance will shrink, but you’ll always use the same number to calculate your monthly interest payment. How can you tell if a lender uses the rule of 78
During the financing process, your lender might not always point out whether your loan agreement applies the rule of 78 to its interest calculation. That’s why reading your loan agreement carefully is so important. Look for mentions of the rule of 78 or precomputed interest in your agreement. If it mentions an interest refund, that might be a cue for you to ask deeper questions about how your lender computes the interest for your loan. Some lenders that apply rule of 78 to your loan include fine print about how it handles an interest rebate or refund in case you decide to pay the loan in full before the full repayment period ends. If there isn’t specific language about the rule of 78 in your agreement, the clearest way to know if the lender uses this interest method is by asking them. The bottom line
The rule of 78 can easily thwart your plans to pay an off early, so avoid loans that use this method if you can. Fortunately, the rule of 78 has largely gone out of fashion even in instances where its use would still be legal. You likely don’t need to worry about it unless you’re a subprime borrower seeking an that lasts for 60 months or less. Remember, lenders that still use the rule of 78 want to make as much money from financing your loan as legally possible. Even if you don’t intend on paying off your loan early, it’s always a good idea to understand how your loan interest is calculated in case you change your repayment strategy in the middle of your term. Learn more
SHARE: Holly Johnson writes expert content on personal finance, credit cards, loyalty and insurance topics. In addition to writing for Bankrate and CreditCards.com, Johnson does ongoing work for clients that include CNN, Forbes Advisor, LendingTree, Time Magazine and more. Aylea Wilkins is an editor specializing in personal and home equity loans. She has previously worked for Bankrate editing content about auto, home and life insurance. She has been editing professionally for nearly a decade in a variety of fields with a primary focus on helping people make financial and purchasing decisions with confidence by providing clear and unbiased information. Related Articles