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Business Acquisition Loan Calculator

Business acquisition lending often combines SBA + seller note + buyer equity.

Purchase price

SBA %

Seller note %

SBA rate %

Seller note rate %

Term years

Total monthly payment

$16,962

Buyer equity

$225,000

SBA payment

$14,464

How the math works

SBA + seller note + buyer equity = price. Each loan amortizes separately.

$1.5M = $1.05M SBA + $225k seller + $225k equity. SBA $14,469/mo + seller $2,498 = $16,967.

Editorial noteMaintained by EveryCalc - Reviewed June 2026

EveryCalc calculators are designed for fast, practical estimates with transparent inputs and no required account. We use plain formulas, visible assumptions, and related tools so visitors can check the result from more than one angle.

Results are informational only. For financial, tax, legal, medical, construction, or other high-impact decisions, verify the output against primary sources or a qualified professional.

Learn more about our review process on the EveryCalc methodology page.

Calculation notes and example

Business acquisition loan structure used here

An acquisition loan estimate starts with purchase price, subtracts buyer equity, then splits the financed amount across senior debt and any seller note. Monthly debt service is the combined payment on those pieces. The useful planning test is not payment alone: compare annual debt service with normalized cash flow to see whether the acquisition can support the financing after owner pay, taxes, and working capital needs.

Worked example

For a $1,000,000 acquisition with 10% buyer equity, 80% SBA financing, and a 10% seller note, the buyer may be carrying $900,000 of debt. If combined monthly payments are near $12,000, the business needs enough reliable cash flow to clear that debt with room for taxes, reinvestment, and surprises. Pair this page with business valuation and SDE vs EBITDA before treating the asking price as financeable.

Edge cases and practical tips

Seller notes may be subordinated or on standby, which changes near-term cash flow.
Use normalized earnings, not one strong trailing month, when sizing acquisition debt.
SBA eligibility, guarantees, collateral, and lender policy can change the actual structure.

Useful companion tools: SBA 7(a) Loan Calculator, Business Valuation Calculator, SDE vs EBITDA Calculator, and Seller Financing vs Bank Loan Calculator.

How to interpret the business acquisition loan result

Best use

Use the result as a planning number for comparing payments, rates, returns, tax reserves, or cash-flow choices before you request a quote or make a commitment.

Cross-check

Compare the answer with the contract, lender estimate, tax form, brokerage statement, payroll record, or invoice that will control the real-world outcome.

Watch for

Do not rely on a single optimistic rate, return, or fee assumption. Money pages work best when you run low, base, and high cases and keep professional advice separate from the estimate.

This page belongs to the Finance calculator library, so the answer should be read in the context of the decision you are modeling rather than as a universal rule.

Before relying on this business acquisition loan estimate

Most calculator mistakes come from the inputs, not the arithmetic. Use this short audit before you reuse the answer in a spreadsheet, quote, application, or important conversation.

Confirm source numbers

Match balances, rates, fees, taxes, income, and payment dates against the lender quote, payroll record, tax form, statement, invoice, or contract.

Separate cash flow from total cost

A lower monthly payment can still cost more over time if fees, interest, taxes, or a longer term are hidden in the structure.

Run conservative cases

Test at least one higher-cost or lower-return case before using the output for a purchase, refinance, investment, loan, or tax decision.

Rerun this page when the rate, price, term, fee, tax rule, income, expense, or expected holding period changes.

How to Use

Enter purchase price.
Enter sba %.
Enter seller note %.
Enter sba rate %.
Enter seller note rate %.
Enter term years.
Read total monthly payment.

Frequently Asked Questions

Business acquisition financing structure?

Standard structure: 70–80% SBA 7(a), 5–15% seller note (subordinate), 10–20% buyer equity. SBA 7(a) max $5M. Cash flow lending: requires 1.25–1.50x DSCR on EBITDA. Asset-based for inventory/receivables-heavy: 60–80% AR, 50% inventory. Earnout: post-close performance pay. Personal guarantee: required for 20%+ owners. Quality of earnings (QoE): $25–75k typical for $1M+ deal, validates EBITDA. Industry-specific: SBA hesitant on certain industries (real estate, oil/gas, multi-level marketing).

How does this fit small business finance?

Small business owners use this calculator alongside cash flow forecast, P&L, balance sheet, and tax projection. Pair with industry benchmark data (RMA, BizMiner, IBISWorld). Decision framework: ROI > capital cost + risk premium > minimum threshold for owner time. Single calculator output is one input — owner intuition + market knowledge + financial discipline complete the picture.

SBA financing fit?

SBA 7(a): up to $5M, working capital, equipment, real estate, business acquisition, longer terms. SBA 504: real estate + equipment, fixed rate, 10–25 years. SBA Express: up to $500k, faster. SBA Microloan: up to $50k. Owner-occupied real estate (51%+ owner use) qualifies. Personal guarantee required. SBA fees: 2–3.75% of guaranteed portion.

When is this worth pursuing?

Small business decisions weighing capex, hiring, expansion, financing should consider: ROI threshold (typically 20%+ for owner risk), payback period (under 3 years preferred), cash flow coverage, opportunity cost vs alternatives. Calculator outputs inform but don't decide — owner judgment about market, competition, and execution capacity is what makes the call.