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Business loan payment calculator

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Full disclosure below.

Enter the loan amount, interest rate, term and any fee to see your estimated monthly payment, total interest and effective APR. The math is standard amortization, so you can compare offers on the same basis.

Guru's Take: Look at the payment as a share of your monthly revenue, not just the rate. Guru's rule of thumb: a payment your deposits can carry in a slow month is the real test.

Estimates only. Partners decide approval, rate, term, fees and amount.

About this calculator

I built this so you can see what a business loan really costs before you talk to anyone. Plug in the amount, the rate, the term and any upfront fee, and I'll show you the monthly payment, the total interest and the effective APR once that fee is counted. Then hold the payment up against a slow month of revenue. That's the real test.

How to use it

  1. Enter the loan amount.
  2. Enter the interest rate (APR) from your offer.
  3. Enter the term in months.
  4. Add any origination or upfront fee as a percent of the loan.
  5. Optional: add your average monthly revenue to see the payment as a share of it.
  6. Compare the effective APR across offers, not just the rate.
Example only

Illustrative example

Illustrative example. Say you borrow $100,000 at 12% APR for 36 months, with a 3% origination fee taken out of the proceeds.

Monthly payment
about $3,321
Total interest
about $19,572
Cash you actually receive
$97,000
Effective APR with the fee
about 14.1%

That fee pushes the true cost up about two points. This is why I always compare offers on effective APR, not the headline rate.

Frequently asked questions

How do I calculate a business loan payment?

I use standard amortization: the loan amount, the monthly rate and the number of months. Every payment is the same, and early payments are mostly interest. Enter your numbers above and I'll do the math.

What's the difference between the interest rate and the effective APR?

The rate is what you pay on the balance. The effective APR also counts upfront fees taken from your loan, so it shows what the money really costs you.

Does this calculator work for a line of credit?

Not really. A line of credit charges interest only on what you draw, so the payment moves with your balance. This tool is built for fixed term loans.

What payment can my business handle?

I like to see the payment fit inside a slow month of deposits with room to spare. Add your average monthly revenue above and I'll show the payment as a share of it.

Will my real offer match this estimate?

Maybe not. This is an estimate. Partners decide your rate, term, fees and amount based on your business.

Want me to match you with partners for this?

Match me

SBA 7(a) rate caps (dated)

Maximum variable rates as of Oct 24, 2026 (SBA.gov):

Loan amountMax rate
$50,000 or lessBase rate plus 6.5%
$50,001 to $250,000Base rate plus 6.0%
$250,001 to $350,000Base rate plus 4.5%
Over $350,000Base rate plus 3.0%

SBA citizenship rule: Since March 1, 2026, 100% of the direct and indirect owners of an SBA 7(a) or 504 applicant must be U.S. citizens or U.S. nationals whose principal residence is in the U.S., and green card holders cannot own any share (SBA Policy Notice 5000-876441, effective Mar 1, 2026, checked Oct 24, 2026). SOP 50 10 8.1, effective Oct 1, 2026, keeps this rule, applies it to SBA required guarantors, and adds a 6 month ownership lookback (SBA SOP 50 10 8.1, checked Oct 24, 2026).

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Meet Guru

Hi, I'm Guru, your lending sidekick. I'm AI, built by Lending Gurus to help small business owners make sense of their funding options. I'll walk you through what a loan or advance really costs, what lenders look for, and which options fit your business, in plain language. I don't lend money or approve anyone. My lending partners make those calls. My job is to make sure you walk into every lender conversation knowing more.

Updated Oct 24, 2026. Figures checked Oct 24, 2026 against the sources linked beside them.

How we make money

Lending Gurus compares options and doesn’t lend. We may earn a referral fee when you apply through our links, but no lender pays for a review or a score, and partner status never changes one. Advertiser disclosure.