Paying off a loan early: how it works and what it saves
Extra payments go straight against principal, cutting the interest charged on every day that follows. Three ways to overpay, when not to, and why precomputed interest changes the answer.
Managing a loan5 min readUpdated 15 September 2026By the MDG Lending Team
The short version
- Interest is charged on the balance you still owe, so every extra payment cuts the interest on every day that follows.
- The earlier the extra payment, the more it saves. A lump sum in month one is worth far more than the same sum in month twelve.
- There is no prepayment penalty on any MDG product and no notice is required.
- Do not clear a loan early if it leaves you with no savings or a more expensive debt untouched.
Why overpaying works, mechanically
Interest is charged on the balance you still owe. Every payment splits between interest and principal, and early in a loan the interest share is largest because the balance is largest.
An extra payment goes entirely against principal. That reduces the balance immediately, which reduces the interest charged on every day that follows, which means more of each future payment goes to principal too. The effect compounds in your favour, and it is strongest in the first few months.
This only holds where there is no prepayment penalty and interest is charged on the declining balance, which is how every MDG product works. Some lenders use precomputed interest, where the total is fixed at signing and paying early saves you little. Ask which applies before assuming.
A $2,000 loan at 29.99% over 18 months
- Monthly payment $139.33
- Total repaid $2,507.94
- Finance charge $507.94
- No penalty for clearing it early, at any point
Three ways to do it
In order of how much they save and how much discipline they need.
A lump sum, early
A tax refund or a bonus applied in the first months saves the most, because it removes interest from every remaining day of the loan.
A fixed amount extra each month
Steady and predictable. Adding a modest amount to every payment typically removes several payments from the end of the schedule.
Settle the balance in full
Your account shows a live payoff figure. Paying it closes the loan that day and stops all further interest.
Whichever you use, check that the extra is applied to principal rather than held as a credit against your next scheduled payment. With us it goes to principal automatically; with other lenders it is worth asking.
When not to pay off early
Three situations where the money is better used elsewhere.
- You have no emergency savings at all. Clearing a loan and then borrowing again next month costs more than carrying it.
- You hold a more expensive debt. Pay the highest rate first; that is where each dollar does the most work.
- You are on a precomputed-interest loan elsewhere, where early payoff saves little. Check before you commit the money.
Building history, and paying early
If part of your reason for borrowing was to build a payment record, note that closing a loan in month one reports only one payment. Letting it run while overpaying modestly gives you both a shorter loan and a longer record.
Questions on this topic
Does MDG charge a fee for paying off early?
No. There is no prepayment penalty on any MDG product. Interest is charged on your outstanding balance, so paying early genuinely reduces your total cost.
How much does overpaying actually save?
It depends on how early and how much. Extra payments made in the first months save the most, because they remove interest from every remaining day of the loan.
Do I need to tell you before making an extra payment?
No notice is required. Extra payments are applied to principal automatically, which reduces the balance and the interest charged from that day.
Where do I find my payoff amount?
Your account shows a live payoff figure, updated as interest accrues, so you always know exactly what it would take to close the loan today.
Is it always better to pay off early?
Not always. If you have no emergency savings, or a more expensive debt elsewhere, the money usually does more work there. Clear the highest rate first.
What is precomputed interest?
A structure where the total interest is fixed at signing rather than accruing on the declining balance, so paying early saves little. MDG does not use it, but it is worth asking any lender which applies.
Keep reading
Related guides and the pages that carry the underlying numbers.
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