Small Business Loan Calculator

Calculate monthly payments, total interest, and true cost of any business loan. Compare SBA, term loans, and equipment financing side by side.

Select Loan Type

🏛️
SBA 7(a)
Up to $5M · 10yr
🏗️
SBA 504
Real estate/equip · 20yr
📋
Term Loan
Bank/online · 1–5yr
⚙️
Equipment
Asset-backed · 3–7yr
💳
Line of Credit
Revolving · variable
🌱
SBA Microloan
Up to $50K · 6yr
$
%
%
Monthly Payment
$0
Total Interest
over loan term
Total Cost
principal + interest
Total Fees
origination
Effective APR
incl. fees

Loan Summary

Loan Amount
APR
Term
Total Payments
Origination Fee
Total Cost of Capital
PrincipalInterest + Fees

Annual Snapshot

Monthly Payment
Annual Payments
Year 1 Interest
Year 1 Principal
Balance After Yr 1
Payoff Date
YearPayment/MoPrincipalInterestBalance

Types of Small Business Loans

Choosing the right loan type dramatically affects your monthly payment, total cost, and qualification requirements. Here's what you need to know about each:

SBA 7(a) Loans

The SBA 7(a) is the most versatile government-backed small business loan, covering working capital, equipment, real estate, and business acquisition. Loan amounts up to $5 million, with terms up to 10 years for working capital and 25 years for real estate. Interest rates are typically Prime + 2.75–4.75% (variable), or you can negotiate a fixed rate. The SBA guarantee (up to 85%) means lower rates than conventional loans.

Who qualifies: For-profit US businesses, meet SBA size standards, operated for profit, owner has invested equity, cannot get credit elsewhere on reasonable terms.

SBA 504 Loans

Designed for major fixed assets — commercial real estate and large equipment. Structure is unique: typically 50% from a bank, 40% from a Certified Development Company (CDC) backed by the SBA, and 10% down from the borrower. Maximum $5.5 million (CDC portion), 20-year terms for real estate, 10-year for equipment. Rates are fixed and tied to 5- and 10-year Treasury rates.

Conventional Term Loans

Bank term loans without SBA backing. Typically $25K–$500K, 1–5 year terms, rates 8–18% depending on credit and financials. Easier and faster to qualify for than SBA loans but higher rates. Online lenders (OnDeck, Funding Circle, BlueVine) can fund in 1–3 business days but charge more than banks.

Equipment Financing

The equipment itself serves as collateral, making qualification easier. Terms typically match useful life of equipment (3–7 years). Rates 6–16% depending on credit and equipment type. After payoff, you own the asset. Good for vehicles, machinery, technology, medical equipment.

Business Line of Credit

Revolving credit you draw from as needed and repay. Interest charged only on drawn amount. Good for managing cash flow gaps. Credit limits $10K–$500K, rates 10–30%+ depending on lender and creditworthiness. Secured (asset-backed, lower rate) or unsecured (no collateral, higher rate).

SBA Microloans

For startups and small businesses needing up to $50,000. Issued by nonprofit intermediaries with SBA funding. Rates typically 8–13%, terms up to 6 years. Often includes technical assistance. Good for new businesses that can't qualify for traditional loans.

What Determines Your Business Loan Rate?

FactorImpactTarget
Personal Credit ScoreHigh — primary qualification factor680+ for SBA; 700+ for best rates
Business Credit ScoreMedium — Dun & Bradstreet, Experian Biz75+ (PAYDEX) or 70+ Experian
Time in BusinessHigh — lenders want 2+ years2+ years operating history
Annual RevenueHigh — must support debt serviceDSCR of 1.25x minimum
CollateralMedium — reduces lender riskReal estate, equipment, receivables
IndustryLow-medium — some industries restrictedAvoid SBA-ineligible industries

Debt Service Coverage Ratio (DSCR)

Lenders use DSCR to confirm your business generates enough income to repay the loan. DSCR = Net Operating Income ÷ Annual Debt Service. Most lenders require 1.25x minimum — meaning your business earns $1.25 for every $1.00 of debt payments.

Example: Annual NOI of $150,000 ÷ annual loan payments of $100,000 = DSCR of 1.50x — comfortably above the 1.25x threshold.

SBA Loan vs. Conventional Loan

SBA 7(a)Conventional BankOnline Lender
AmountUp to $5M$25K–$5M+$5K–$500K
RatePrime + 2.75–4.75%6–12%10–40%+
Term7–25 years1–7 years3 months–5 years
Down payment10–30%10–20%None
Speed30–90 days2–8 weeks1–5 days
Credit requirement680+680+550+

How to Improve Your Loan Terms

Is Your Business Loan Interest Tax Deductible?

Yes — interest paid on business loans is generally tax-deductible as a business expense under IRC Section 163. This reduces the effective cost of borrowing. A loan at 9% APR with a 25% effective tax rate has a true after-tax cost of approximately 6.75%. Note: if the loan is for both business and personal use, only the business portion is deductible. Consult a CPA for specifics.

This calculator provides estimates for informational purposes only. Actual loan terms, rates, and approval depend on lender requirements and your business's financial profile. Consult a business financing specialist or SBA-approved lender for personalized advice.

What to Check Before Signing a Loan Offer

Two offers with the same headline interest rate can cost very different amounts once the fine print is factored in. Comparing loan offers on APR alone — without reading the rest of the term sheet — is the single most common reason business owners end up with financing that's more expensive or less flexible than expected.

Prepayment Penalties

Many term loans and nearly all SBA 7(a) loans over 15 years carry a prepayment penalty if paid off early — SBA rules currently impose a declining penalty (5%, 3%, 1% of the prepaid amount) during the first three years for loans with maturities of 15+ years. A business that expects strong revenue growth and plans to refinance or pay down debt early should weigh this penalty against the lower rate an SBA loan typically offers, since the penalty can offset a meaningful part of the interest savings.

Factor Rates vs. APR

Merchant cash advances and some short-term online lenders quote a "factor rate" (e.g., 1.3) instead of an APR. A factor rate of 1.3 on a $50,000 advance means paying back $65,000 total — but converted to an annualized rate, that same advance repaid over 6 months can equate to an APR well above 60-80%, far higher than it appears at first glance. Always ask the lender to convert a factor rate to an equivalent APR before comparing it to a term loan quote.

Personal Guarantees and UCC Liens

Most small business loans — SBA-backed or not — require a personal guarantee from owners with 20%+ equity, meaning personal assets are on the line if the business defaults, not just the collateral pledged. Lenders also commonly file a UCC-1 blanket lien against business assets, which can complicate getting a second loan from a different lender later since that lender will see the existing lien during underwriting.

Draw Fees, Maintenance Fees, and Renewal Terms

Lines of credit in particular often carry fees beyond the quoted rate: an unused-line fee charged on the undrawn balance, an annual maintenance fee, or a renewal fee when the line comes up for its periodic review. None of these show up in a simple monthly-payment calculation, so requesting the full fee schedule — not just the rate — is worth doing before comparing a line of credit against a term loan for the same need.