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Money Tips & Education
What increases your total loan balance?
Updated Nov 19, 2025
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Reviewed by
Key takeaways:
Payments that don’t cover your loan’s interest usually increase your loan balance.
Pausing or deferring payments, or making late payments, could increase your loan balance.
If you aren’t making progress with your debt, you could explore debt consolidation, debt negotiation, or other debt solutions.
You’re paying off a loan and it doesn’t feel like you’re making any progress. So you check your balance and find an unhappy surprise. The balance has actually gone up even though you’ve been making payments. Most of the time, loan balances go down over time. But sometimes, they can go up.
Several factors could drive up your total loan balance, from making payments that are too small to pausing your loan payments. Understanding these factors could help you avoid extra costs when paying off a loan—it could help you shut the door on debt sooner.
Whether you have a personal loan, a student loan, or another kind of loan, your goal is probably to pay it off as quickly as possible. The more you know about what increases your total loan balance, the easier that goal becomes.
Why your loan balance can increase
Let’s go through some of the things that increase your total loan balance so you can potentially avoid having this happen in the future.
1. Negative amortization
Negative amortization loans allow you to choose how much you’ll pay each month. You could make very small minimum payments that don’t even cover the interest due. When you only pay that minimum, though, the lender adds any unpaid interest to your balance. Then you’re charged interest on the new, higher balance. That’s called negative amortization.
Even though you’re making monthly payments, the result is that the amount you owe goes up instead of down.
Most loans are structured to be fully amortizing. That’s a fancy way of saying that each payment is designed to cover both interest and principal, so when the loan term ends, you’ve paid off the balance. Negative amortization is legal, but it’s not common because it’s risky for borrowers and lenders.
2. Forbearance or deferment
A forbearance or deferment means your lender has agreed to let you pause or reduce payments for a while. Mortgage forbearance typically lasts one to six months. That applies to personal loans, too, helping you manage your personal loan finances. Student loans can sometimes be paused for multiple years to help you manage student loan debt.
Most loans still charge interest during a payment pause. (Some federal student loans pause interest during deferment.) If your loan continues to accrue interest, you’ll owe more when your payment pause ends. And as your loan balance increases, your monthly interest goes up, too. A good strategy is to pay your accrued interest each month, even if you can’t make your entire payment during a deferment.
Achieve tip: In most cases, you’ll need to catch up on any payments that were skipped or reduced during forbearance or deferment. That means when the pause ends, you have to pay extra until you make up for those missed payments. Student loans are the exception. You generally aren't required to catch up after a student loan pause.
3. Additional borrowing
Sometimes, you’re allowed to borrow more money after you first borrow—for instance, when you take out a home equity line of credit (or HELOC). A HELOC typically allows you to borrow less than your full credit limit. You can keep your line of credit partially unused and reserve it for emergencies, or you can borrow against it for almost any purpose. Borrowing more, however, always increases your total loan balance.
4. Late fees
Missing a payment due date often triggers a late fee. You can cover the fee when you make your next payment, or it'll be added to the balance that you owe. If your account is in good standing and the late payment is an isolated mistake, you may be able to persuade the lender to waive the fee.
Why your monthly payment could increase
If you’re paying off a loan, you may find yourself wondering: Why did my payment go up? Here are some reasons this could happen.
1. Variable or adjustable interest rate
Many debts have interest rates that can go up or down as financial markets change. Credit card issuers generally call these rates variable, while mortgage lenders call them adjustable.
In both cases, the lender picks a number from the financial world to follow (called an index or a benchmark). If that number goes up or down, your loan’s interest rate and monthly payment could also go up or down.
If your interest rate goes up—but you take the same amount of time to pay off your debt—you end up paying more overall. The amount you borrowed stays the same, but a higher rate means it costs you more in fees to borrow it.
2. Penalty interest rates
Missing payments without a lender’s approval can cost more than a formal forbearance or deferment. That’s because the lender may charge you a penalty interest rate on top of any late fees. A penalty rate is when your rate goes up as a result of violating the terms of your loan, like when you miss a payment or have a payment returned for insufficient funds.
Penalty interest rates are higher than your regular rate, which increases what you have to pay. Technically, higher interest increases your cost to borrow but not your loan balance.
3. Taxes and insurance
Sometimes, your mortgage payment includes an amount for property taxes and homeowners insurance. Your lender collects this from you each month and then pays those bills when they come due. This is called escrow or impounding.
If your mortgage has impounds, your payment will increase if those costs go up. Higher taxes or insurance costs don’t make your loan balance increase, but they do increase what you have to pay.
What’s next?
If your loan balance is going up (or not going down the way you think it should), give your lender a call to find out why. If you have a negatively amortizing loan or a debt with a high interest rate, start looking for ways to bring the cost down and make steady progress on paying it off. Here are some ideas to consider.
Take out a lower-interest loan to consolidate debt
Refinance to a new loan with better terms
Negotiate your debts with your creditors if you can’t afford to pay them off
Create a budget that helps you put more money toward debt repayment
Talk to a debt expert about your situation and what options might make sense.
Author Information
Written by
Maurie Backman is a veteran personal finance writer. Her coverage areas include retirement, investing, real estate, and credit and debt management.
Reviewed by
Jill is a personal finance editor at Achieve. For more than 10 years, she has been writing and editing helpful content on everything that touches a person’s finances, from Medicare to retirement plan rollovers to creating a spending budget.
Frequently asked questions
What are the three main factors of a loan?
The three main factors of a loan are the principal (amount borrowed), the interest rate, and the payoff period. All three can impact your monthly loan payments and total cost of your loan.
Why is my payoff balance higher than my loan balance?
Your loan payoff balance may be higher than the amount you borrowed initially due to interest and fees.
Can missing a payment increase my loan balance?
Yes. Missed payments are one of the factors that increase loan balances. You continue to accrue interest on the total amount you owe. Late fees increase how much you owe your lender. Some lenders may also enact a penalty interest rate, which can increase the cost of your debt.
Why did my loan balance increase?
Your loan balance may have increased due to negative amortization (making very small payments), forbearance, deferment, additional borrowing, or late fees.
Can fees increase my loan balance?
Yes, fees are a factor that can increase your loan balance. Lenders are sometimes willing to negotiate late fees, so it's always worth asking.
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