How to Calculate Business Loan Payments
Learn how to calculate monthly payments for SBA loans, bank term loans, and online business loans. Compare rates, terms, and total costs side by side.
Whether you are starting a new business or expanding an existing one, understanding your loan payment before you borrow is critical. Business loans come in many forms, each with different rates, terms, and fee structures. This guide shows you how to calculate payments for the most common types and compare SBA loans against online lenders.
The Business Loan Payment Formula
Most business term loans use standard amortization:
Monthly Payment = P x r x (1 + r)^n / ((1 + r)^n - 1)Where P = loan principal, r = monthly interest rate, and n = total number of monthly payments.
SBA Loans: The Gold Standard
SBA (Small Business Administration) loans are partially guaranteed by the federal government, allowing lenders to offer lower rates and longer terms. The most popular programs are:
SBA 7(a) Loan
- Loan amount: Up to $5 million
- Interest rates: Prime + 2.25% to 4.75% (currently 9.50% to 12.00%)
- Terms: Up to 10 years for working capital, 25 years for real estate
- Guarantee fee: 2% to 3.75% depending on loan size
- Best for: General business purposes, equipment, working capital
SBA 504 Loan
- Loan amount: Up to $5.5 million
- Interest rates: Below-market fixed rates (currently around 6.50% to 7.00%)
- Terms: 10 or 20 years
- Best for: Commercial real estate and major equipment purchases
Online Lenders: Speed vs Cost
| Lender Type | Typical Rate | Term | Speed | Min Revenue |
|---|---|---|---|---|
| SBA 7(a) | 9.5% - 12.0% | 10-25 years | 30-90 days | Varies |
| Bank term loan | 7.5% - 12.0% | 3-10 years | 14-60 days | $250K+ |
| Online term loan | 9.0% - 36.0% | 1-5 years | 1-7 days | $100K+ |
| Online line of credit | 10.0% - 80.0% | 6-24 months | 1-3 days | $50K+ |
| Merchant cash advance | 20% - 150% (factor rate) | 3-18 months | 1-2 days | $50K+ |
Payment Comparison: $200,000 Loan
Let us compare the monthly payment and total cost for a $200,000 business loan across different options:
| Loan Type | Rate | Term | Monthly Payment | Total Paid |
|---|---|---|---|---|
| SBA 7(a) | 10.5% | 10 years | $2,699 | $323,880 |
| Bank term loan | 9.0% | 5 years | $4,152 | $249,120 |
| Online lender | 18.0% | 3 years | $7,230 | $260,280 |
| Online lender | 30.0% | 2 years | $11,148 | $267,552 |
The SBA loan has the lowest monthly payment and the longest term, but the bank term loan has the lowest total cost due to the shorter term and lower rate.
Key Factors to Consider
- Total cost of capital: A lower monthly payment over a longer term can mean paying more in total interest.
- Prepayment penalties: SBA loans and some bank loans charge penalties for early repayment. Online lenders usually do not.
- Origination fees: These range from 0% (some bank loans) to 5% or more (online lenders) and affect your effective rate.
- Collateral requirements: SBA and bank loans typically require business assets or personal guarantees. Some online lenders are unsecured.
- Cash flow impact: Ensure monthly payments do not exceed 20-25% of your monthly revenue to maintain healthy operations.
When to Choose Each Option
- SBA loan: When you have time (60+ days), good credit (680+), and want the best rates.
- Bank term loan: When you have an established banking relationship and need moderate funding quickly.
- Online lender: When you need capital fast, have been turned down by banks, or need a smaller amount.
Calculate your business loan payments with our Business Loan Calculator.