Is It Better to Pay Off the Smallest Debt or Highest Interest?

Choosing a strategy to manage debt can feel like a choice between two different philosophies. On one hand, you have the psychological benefit of crossing small debts off your list quickly. On the other hand, you have the mathematical efficiency of targeting high interest rates to save money over time. Both methods require a disciplined monthly budget and a clear understanding of your current balances and interest rates. By looking at a specific scenario involving three common types of debt, we can see how these two popular strategies—the debt snowball and the debt avalanche—could impact your journey toward a zero balance.

In our example, we are looking at a total debt of $17,500. This is comprised of a store card with a balance of $1,200 at 18.99%, a Visa with a balance of $6,800 at 27.49%, and a car loan with a balance of $9,500 at 7.9%. With a set monthly budget of $790, the path you choose may change which debt you tackle first, how much interest you pay, and how quickly you reach the finish line. Understanding the mechanics of these calculations is the first step in deciding which approach may be right for your financial situation.

Item	Value
Debts	Store card: $1,200 at 18.99%; Visa: $6,800 at 27.49%; Car loan: $9,500 at 7.9%
Total debt	$17,500
Monthly budget	$790
Snowball time	2 years and 3 months
Snowball interest	$3,092
Snowball first paid off	the store card
Avalanche time	2 years and 2 months
Avalanche interest	$2,936
Avalanche first paid off	the Visa
Interest difference	$156
Cheaper method	avalanche

Understanding the Debt Snowball Method

The debt snowball method prioritizes the smallest debt first, regardless of the interest rate. The goal of this strategy is to create psychological momentum. By paying off a small balance quickly, you might feel a sense of accomplishment that encourages you to keep going. In our scenario, the snowball first paid off is the store card. This is because the $1,200 balance on the store card is smaller than the $6,800 Visa or the $9,500 car loan.

When using the snowball method with a monthly budget of $790, you would pay the minimums on the Visa and the car loan while putting every extra dollar toward the $1,200 store card. Once that store card is gone, you would take the entire amount you were paying toward it and add it to the payment for the next smallest debt, which is the $6,800 Visa. This creates a "snowball" effect where the payments grow larger as each debt is eliminated.

According to our scenario calculations, using the snowball method results in a snowball interest total of $3,092. The total snowball time to pay off the entire $17,500 is 2 years and 3 months. While this method is not the most mathematically efficient in this specific case, the early win of clearing the store card may be a powerful motivator for some people to stay on track with their $790 monthly budget.

Understanding the Debt Avalanche Method

The debt avalanche method takes a different approach by prioritizing the debt with the highest interest rate first. This method is designed to minimize the total interest paid over the life of the debts. In our scenario, the highest interest rate is the 27.49% attached to the Visa. Therefore, the avalanche first paid off is the Visa, despite it having a much higher balance ($6,800) than the store card ($1,200).

Under the avalanche strategy, you would pay the minimum amounts on the store card and the car loan, focusing all remaining funds from your $790 monthly budget on the Visa. Once the Visa is paid off, you would move to the next highest interest rate, which is the 18.99% on the store card, and finally the 7.9% on the car loan. This method ensures that the most expensive debt is neutralized as quickly as possible.

Our data shows that the avalanche time for this $17,500 total debt is 2 years and 2 months. The avalanche interest total comes to $2,936. Because you are attacking the 27.49% rate first, the cheaper method is avalanche. By focusing on the math rather than the balance size, you could potentially shorten your debt-free timeline and reduce the amount of money leaving your pocket in the form of interest charges.

Comparing the Math Step by Step

To see why one method might be more beneficial than the other, it helps to look at the interest difference. In our scenario, the difference between the snowball interest of $3,092 and the avalanche interest of $2,936 is $156. Additionally, the avalanche method is faster by 1 month, finishing in 2 years and 2 months compared to 2 years and 3 months for the snowball.

While $156 may not seem like a massive amount over a period of more than two years, it represents money that could have been used for other financial goals. The reason the avalanche method is more efficient here is primarily due to the high interest rate on the Visa. At 27.49%, the Visa is significantly more expensive than the car loan at 7.9% or the store card at 18.99%. By leaving the $6,800 Visa balance to sit while paying off the $1,200 store card first (as you would in the snowball method), more interest accumulates on that large Visa balance every month.

However, the snowball method has its own logic. If someone finds it difficult to stay motivated, paying off the store card first might prevent them from giving up. The car loan, with the lowest rate of 7.9% and the largest balance of $9,500, is the final debt to be paid in both scenarios. This is because it has the lowest interest rate (relevant for avalanche) and the largest balance (relevant for snowball). You can test your own numbers and interest rates by using our Debt Avalanche Calculator.

How Debt Repayment May Affect Your Credit Score

As you work through your $17,500 debt, your actions could have a significant impact on your credit score. Credit scores generally fall within a score range of 300 to 850. Lenders often categorize these scores into tiers: Poor 300-579, Fair 580-669, Good 670-739, Very good 740-799, and Exceptional 800-850. Understanding how these scores are calculated can help you maintain or improve your credit standing while paying off debt.

According to Fico weights, the most important factor is payment history, which makes up 35% of your score. This is why it is vital to continue making at least the minimum payments on all your debts, whether you are using the snowball or avalanche method. Late payments can stay on credit reports up to 7 years, which could hinder your ability to reach a Good 670-739 or Exceptional 800-850 rating.

The second largest factor is amounts owed, which accounts for 30% of the score. This includes your credit utilization, which is the amount of credit you are using compared to your limits. A common utilization guideline is to keep this figure under 30%, though under 10% is often better. In our scenario, the $6,800 Visa and the $1,200 store card contribute heavily to your utilization. Paying these down could positively influence this 30% portion of your FICO score.

Other factors include length of history at 15%, new credit at 10%, and credit mix at 10%. While you are paying off debt, you might be tempted to apply for new consolidation loans. However, keep in mind that hard inquiries can stay on reports for 2 years and usually matter most in the first 12 months. Being mindful of these weights while you execute your $790 monthly budget plan can help you protect your financial reputation.

Practical Steps to Start Your Debt Payoff

Regardless of whether you choose the snowball or avalanche method, the process for starting is similar. First, you must list every debt you owe. In our example, that list includes the store card ($1,200 at 18.99%), the Visa ($6,800 at 27.49%), and the car loan ($9,500 at 7.9%). You need the exact balance and the exact interest rate for each.

Next, determine your monthly budget. In this scenario, the budget is $790. This amount must be enough to cover the minimum payments on all three debts with some extra left over to put toward the priority debt. If $790 is your total available for debt, you would subtract the minimums for the two non-priority debts and send the remainder to the first debt on your list.

If you choose the avalanche method, your priority is the 27.49% Visa. If you choose the snowball method, your priority is the $1,200 store card. Once you have made your choice, consistency is key. Since late payments can stay on credit reports up to 7 years, setting up automatic payments for the minimums on your other accounts may help ensure you do not miss a due date.

Which Method is Right for You?

The choice between smallest debt and highest interest often comes down to your personal discipline. The avalanche method is the cheaper method in our scenario, saving $156 and 1 month of time. For a person who is strictly focused on the math and wants to pay the least amount of interest possible, the avalanche is the clear winner. The $2,936 in total interest is a lower cost than the $3,092 required by the snowball.

However, the snowball method remains popular for a reason. If the $6,800 Visa feels overwhelming, paying off the $1,200 store card in the first few months could provide the emotional boost needed to stay the course for the full 2 years and 3 months. The 1-month difference in time and the $156 difference in cost may be a small price to pay if it ensures that the $17,500 total debt actually gets paid off.

It is also worth considering how each debt affects your daily life. A car loan at 7.9% is a secured debt, meaning the vehicle is collateral. While it has the lowest interest rate in our scenario, it is a significant part of the $17,500 total. Both methods eventually lead to the same goal: becoming debt-free. By using tools like our Debt Avalanche Calculator, you can run your own numbers to see exactly how much you could save by choosing one method over the other.

In conclusion, there is no single "correct" answer that applies to everyone. The best method is the one you can stick to until the very end. Whether you prioritize the psychological wins of the snowball or the mathematical savings of the avalanche, the most important factor is maintaining your $790 monthly commitment and ensuring that your payment history, which is 35% of your credit score, remains clear of late entries. By looking at the $156 interest difference and the 1-month time savings, you can make an informed decision that aligns with your financial priorities.