Business Loan Calculator
Calculate monthly payments, APR, total interest, fees, and repayment schedules for business loans with advanced compounding and payment options.
total financing needed
annual rate (nominal)
how interest accrues
how often you pay
lender's loan fee
Business loans, in the way they're actually priced
A business loan looks simple from the outside — borrow money, pay it back with interest. In practice, three numbers are doing the heavy lifting under the headline rate: the compounding setting, the fee schedule, and the payment frequency. Get those three right and you can compare any lender to any other on equal footing. Miss them and a 9% loan can quietly cost you the same as a 12% one.
The four pieces of any business loan
Every commercial loan — bank term, SBA 7(a), equipment finance, line of credit, MCA — is some recombination of these four inputs. Lock them in your head and every quote reads in the same language.
Principal
The cash you actually borrow. Most lenders advertise the gross amount, but if fees are deducted at funding, the cash hitting your account is smaller. Use the calculator's "Cash Received" field to see the real disbursement.
Interest Rate
The cost of borrowing, expressed as an annual percentage of the unpaid balance. Stated as a nominal rate; the effective annual rate (EAR) only matches if compounding is annual. Anything more frequent than that pushes EAR above the headline.
Term
How long you have to repay. Working-capital loans run 1–7 years; SBA 7(a) loans go up to 10 years for general purpose and 25 for real estate; equipment loans match the asset's useful life. Longer terms cut periodic payments but cost more in total.
Fees
Origination, documentation, underwriting, packaging, SBA guarantee fees. Each one shaves the disbursement or adds to the repayment — either way it raises the effective APR above the stated rate. The bigger the fee load, the bigger the gap.
APR vs interest rate, in one image
These get used interchangeably in marketing copy. They aren't the same number, and the gap between them is where lenders make their margin look prettier.
Interest Rate
The bare cost of borrowing on the principal. It's what shows up in the loan agreement's rate clause and what most marketing focuses on. Doesn't include fees, doesn't reflect compounding, doesn't account for when payments actually hit.
APR (Effective)
The complete annualized cost — interest plus required fees, expressed as a single percentage. This is the number two loans must share before you can call them comparable. The calculator's effective APR field is the apples-to-apples figure.
Quick read: if APR is meaningfully above the stated rate, fees are doing the work. A 1% gap usually means modest origination; a 3%+ gap signals either heavy fees, a short term that magnifies the fee impact, or both.
Common business loan structures
The math in this calculator works for every one of these. What changes is the credit profile, the typical rate range, and how the lender packages the fees.
Bank Term Loan
Lump sum funded by a bank, repaid on a fixed schedule. Best rates for established businesses with two-plus years of clean financials and a 720+ FICO. Typical APRs run prime + 1% to prime + 6%.
SBA 7(a) / 504
Government-guaranteed loans with longer terms and lower rates than conventional bank loans. SBA 7(a) caps at $5M; 504 is for real estate and equipment. Requires more paperwork and a SBA-certified lender but worth it for the rate.
Line of Credit
Revolving credit — borrow up to a limit, repay, borrow again. Interest only on the amount drawn. Use it for cash-flow gaps, not long-term assets. Rates are typically variable and higher than term loans.
Equipment / MCA
Equipment loans are secured by the asset, so rates are lower; the loan term matches the asset's life. Merchant cash advances are last-resort, with effective APRs often above 50% — the calculator can expose just how expensive they are.
Secured vs unsecured — what changes
Secured Loans
Backed by collateral — equipment, real estate, inventory, receivables, or a blanket UCC lien on business assets. If you default, the lender takes the asset. In return, the rate is typically 200–400 basis points lower than an equivalent unsecured loan.
Best for: large amounts, long terms, capital-heavy businesses.
Unsecured Loans
No specific collateral pledged, but almost always require a personal guarantee — meaning if the business defaults, the lender can come after the owner's personal assets. Faster to close but priced higher to compensate for the absent collateral.
Best for: smaller amounts, shorter terms, asset-light service businesses.
A worked example, end to end
Your business needs $250,000 to expand. Bank A offers a 5-year term loan at 9% with a 2% origination fee. Bank B quotes 8.25% with a 5% origination fee. Headline math suggests Bank B is cheaper — let's see if it is.
On the surface, Bank B's 8.25% looks like the better deal. But the 5% origination fee on $250K is $12,500 — versus Bank A's $5,000. Spread across a 5-year repayment, that extra $7,500 of upfront cost translates to about 70 basis points of additional APR. Bank A is actually cheaper. Total interest paid: Bank A ≈ $61,200; Bank B ≈ $65,400. The headline rate hid the answer.
Tips for getting approved
Clean up your personal credit first
Lenders pull your personal FICO even on business loans. Pay down credit cards to under 30% utilization, dispute any errors, and avoid new inquiries in the 90 days before applying. 50 points can move you a full lender tier.
Have two years of clean financials ready
Tax returns, P&L, balance sheet, bank statements. Lenders aren't looking for perfect — they're looking for consistent. Volatile revenue with no explanation pushes the rate up; smooth growth with documented context pulls it down.
Know your DSCR before you apply
Debt Service Coverage Ratio = operating income divided by total debt payments. Most lenders want 1.25 or higher. Below 1.0 means you can't cover the loan from operations — automatic decline at most banks.
Ask for less than you can prove
If your books support $300K, ask for $200K. Approvals come faster, terms come better, and you can ask for a larger second draw 12–18 months later with a clean payment history behind you.
Apply to three lenders, not one
Banks, credit unions, and SBA-certified lenders price the same borrower differently. The 30 minutes spent on the additional applications is the cheapest way to save 100+ basis points on the rate.
Three traps that catch borrowers
Comparing rates instead of APRs
The single most common mistake. A 7.5% rate with a 6% origination beats a 9% no-fee loan — until you realize the first loan's APR is 9.8%. Always pull APR, not headline rate, into your spreadsheet.
Underestimating prepayment penalties
Many commercial loans charge 1–5% of the outstanding balance if you pay off early. If you expect to refinance after rates fall, build the prepayment cost into your decision — sometimes it eats the entire savings.
Mistaking MCA factor rates for APR
Merchant cash advances quote a "factor rate" like 1.35 instead of an APR. A factor rate of 1.35 on a 6-month payback equals an APR north of 100%. Always convert factor rates to APR before signing.
How to read your calculator results
- →Periodic payment is what hits the bank each pay period. If it doesn't fit the business's cash flow, extend the term or reduce the principal.
- →Effective APR is the comparison number. Use it — not the stated rate — when shopping across lenders.
- →Interest-to-principal ratio tells you what fraction of the principal you're paying in interest alone. Anything over 30% deserves a hard look at whether a shorter term would change the math.
- →Cash received is the actual deposit hitting your account on funding day. Plan around this number, not the loan amount.
- →Schedule view — toggle between yearly and per-period views. Yearly is best for tax planning; per-period helps confirm cash-flow timing.
Frequently Asked Questions
Business loan math, APR, fees, and approval
What does this business loan calculator do?+
It models any commercial loan from the cash flow up. Plug in the loan amount, interest rate, term, compounding setting, payment frequency, and any fees — the calculator builds the full payment schedule, separates principal from interest on every row, and tells you the effective APR after fees. Use it to compare lender quotes, stress-test cash flow, or check whether a balloon or interest-only structure actually saves you money over a plain amortizing loan.
How are business loan payments calculated?+
The math is standard amortization: the calculator converts your nominal annual rate to an effective annual rate using your chosen compounding setting, then derives the periodic rate that matches your payment frequency, and solves PMT = P × r × (1+r)^n ÷ ((1+r)^n − 1). Early payments are mostly interest because interest is charged on the still-large balance; later payments shift toward principal as the balance falls.
What is APR and how is it different from the interest rate?+
The interest rate is the bare cost of borrowing — what the lender charges on the unpaid balance. APR (annual percentage rate) wraps the interest rate together with required fees: origination, documentation, underwriting, packaging. Two loans can quote the same 8% rate but have very different APRs once a 3% origination fee enters the picture. Always compare lenders on APR.
How do origination fees work on business loans?+
An origination fee is what the lender charges to process and fund the loan, expressed as a percentage of the loan amount (commonly 1%–6% on small business loans). It's either deducted from the loan disbursement — you get $97,000 cash on a $100,000 loan with a 3% fee — or rolled into the balance you repay. Either way, it lifts the effective APR above the stated rate.
Which payment frequency saves the most money?+
More frequent payments lower total interest because the balance comes down sooner. Switching from monthly to biweekly on a 5-year, $250,000 loan at 9% saves roughly $4,000 in interest. Daily payments squeeze costs further but require steady cash flow. Pick the most aggressive frequency your operations can handle.
What is compound interest on a business loan?+
Compounding sets how often unpaid interest gets added back to the balance and starts earning more interest. The effective annual rate on an 8% nominal loan is roughly 8.30% compounded monthly, 8.33% compounded daily, and 8.33% compounded continuously. Switching the dropdown between compounding modes shows you the real cost difference.
Can I repay a business loan early?+
Usually, yes — but read the contract. Many traditional bank and SBA loans allow prepayment without penalty after the first year or two; some commercial term loans charge a prepayment premium. Merchant cash advances and some short-term online loans are structured so the fee is fixed at funding, meaning early repayment saves you nothing.
What is a balloon payment?+
A balloon is a large lump payment due at the end of a loan, on top of (or instead of) the regular amortizing payments. Lenders use it to keep monthly payments low during the life of the loan — you only amortize part of the principal across the term, then pay off the remainder in one shot. Use balloon structures only when you have a clear plan for the lump payment date.
What affects business loan approval?+
Lenders look at four things: credit score (most want 680+ personal FICO), time in business (two years is the conventional threshold), revenue and cash flow (minimum $100K–$250K annual revenue and a DSCR above 1.25), and collateral plus personal guarantees. Strong businesses get rates near prime; thin files end up with alternative lenders charging 25%+ APR.
How can I lower my business borrowing costs?+
Five practical moves: improve your personal credit before applying; build six months of clean accounting records; shorten the term if cash flow allows; compare APRs across at least three lenders including banks, credit unions, and SBA-certified lenders; pledge collateral when possible. Most borrowers leave money on the table by accepting the first offer.
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