Principal
In lending, principal is the original amount of money you borrow — before any interest is added. When you make loan payments, part goes toward reducing the principal and part goes toward interest. The faster you pay down the principal, the less total interest you'll pay over the life of the loan.
Principal Definition
In lending, principal is the original amount of money you borrow — before any interest is added. When you make loan payments, part goes toward reducing the principal and part goes toward interest. The faster you pay down the principal, the less total interest you'll pay over the life of the loan.
Principal in Practice — Example
A small business owner borrows $50,000 to purchase a delivery van. That $50,000 is the principal. His monthly payment is $950, of which $650 goes toward principal and $300 goes toward interest in the first month. As the principal balance decreases over time, more of each payment goes toward principal and less toward interest. By the end of the loan, almost the entire payment is principal.
Why Principal Matters for Your Business
Understanding the split between principal and interest in your loan payments helps you see the true cost of borrowing. A loan might seem affordable based on monthly payments, but if most of that payment is going to interest in the early years, your actual debt is barely shrinking.
Paying down principal faster — through extra payments or higher monthly amounts — can save you thousands in interest. Even small additional principal payments early in a loan's life have an outsized impact because they reduce the base amount that interest is calculated on.
How Principal Works
Most business loans use amortization, where each payment covers both principal and interest:
Monthly Payment = Principal Portion + Interest Portion
Early in the loan, interest takes a larger share. Over time, the balance shifts:
| Payment # | Payment | Principal | Interest | Remaining Balance |
|---|---|---|---|---|
| 1 | $950 | $650 | $300 | $49,350 |
| 12 | $950 | $690 | $260 | $41,200 |
| 24 | $950 | $735 | $215 | $32,400 |
| 36 | $950 | $785 | $165 | $22,800 |
| 48 | $950 | $835 | $115 | $12,300 |
| 60 | $950 | $940 | $10 | $0 |
This shift is called amortization, and it's why the early years of a loan feel like you're barely making progress on the balance.
Principal vs Interest
Principal is the amount you originally borrowed. Interest is the cost the lender charges you for borrowing that money, expressed as a percentage of the remaining principal. You want to reduce principal as fast as possible because interest is calculated on whatever principal remains.
FAQ
Q: Can I make extra principal payments on my business loan?
A: Most loans allow extra principal payments, but check for prepayment penalties first. Some lenders charge a fee if you pay off the loan early, especially in the first few years.
Q: Does paying more toward principal save money?
A: Yes. Extra principal payments reduce your balance faster, which means less total interest over the life of the loan. Even an extra $100/month can save thousands.
Related Terms
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Related Terms
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