SBA Loan Calculator
Price an SBA 7(a) loan including the guaranty fee charged on the guaranteed portion, and see why the longer amortisation is what actually wins approvals.
SBA Loan Calculator
Results recalculate instantly on every keystroke. Nothing you type is transmitted.
What this result does not account for
- Results are a model, not a quotation — an institution's own figures govern.
- Every input is an assumption; change one and the answer changes with it.
- Rounding is applied only at the display layer, so totals may differ by a cent from a statement that rounds each line.
In short: SBA 7(a) loans offer longer terms and lower deposits than conventional lending, funded by a guaranty fee on the guaranteed portion. A $500,000 loan at 10.25% over ten years costs $6,676.95 monthly with a $13,125.00 guaranty fee — and coverage of 1.75× against 1.36× conventionally.
Formula
The fee is charged only on the portion the SBA guarantees, not the whole loan, which is the detail most borrowers miscalculate.
Worked Example
- Price the payment. $500,000 at 10.25% over 120 months = $6,676.95.
- Find the guaranteed portion. 75% of $500,000 = $375,000.00.
- Apply the fee. 3.5% of $375,000.00 = $13,125.00.
- Annualise the service. $6,676.95 × 12 = $80,123.40.
- Test coverage. $140,000 ÷ $80,123.40 = 1.75×, well above 1.25.
Analyst note. The rate is not why SBA loans get approved — the term is. The same $500,000 conventionally at 11% over seven years costs $8,561.22 a month and yields coverage of only 1.36×. Stretch to a 25-year real-estate structure and the payment falls to $4,631.92 with coverage of 2.52×. Longer amortisation is the mechanism that converts a marginal deal into a bankable one.
Strengths & Limits Of This Model
Where this engine is strong
- Runs entirely in your browser — no figure you type is transmitted or stored.
- Shows the full working, so every number can be traced and challenged.
- Free, unmetered and free of affiliate incentives.
Where it stops
- Generalised assumptions cannot capture every individual circumstance.
- Jurisdiction-specific rules and mid-year changes may not be reflected.
- A model output is not a substitute for a professional review of your position.
Practical Use Cases
Testing whether a business qualifies
Coverage is the first underwriting screen. Knowing your ratio before applying saves weeks. Compare conventional pricing with the Business Loan Calculator.
Deciding whether to finance the guaranty fee
Most borrowers roll the fee into the loan. The financed-payment output shows the cost of doing so across the full term rather than paying it at closing.
Comparing a 10-year working capital loan against 25-year real estate
The amortisation difference dominates everything else. Property-secured deals price with the Commercial Loan Calculator.
Methodology & Editorial Standards
The payment amortises the full loan amount at the stated rate. SBA 7(a) rates are typically pegged to prime plus a spread, capped by programme rules, and are frequently variable rather than fixed; the default reflects a common prime-plus-2.75 structure at recent prime levels. The guaranty fee is calculated on the guaranteed portion only, which is generally 75% for loans above $150,000 and 85% below it, at a fee rate that varies by loan size and term. Fees are periodically waived or reduced by legislation. Coverage divides operating income by annual debt service, with 1.25 the standard threshold. Existing debt on other facilities is not included and must be added for a global coverage test. Packaging fees, closing costs and collateral requirements are excluded. The engine implements the standard published formula for this calculation. Inputs are validated for domain and sign before evaluation, and any undefined case returns an em-dash rather than a spurious value.
Computation runs in IEEE-754 double precision at full internal precision; rounding to two decimal places occurs strictly at the display layer, so no cumulative drift enters the result. All monetary outputs use accounting presentation — grouped thousands, two decimals, negatives in parentheses — so figures can be transcribed directly into a model or working paper. Division-by-zero and out-of-domain inputs return an em-dash rather than a misleading number.
This engine was reconciled against an independent reference implementation and hand-verified for the worked example above before release. Our full five-stage review process is published on the About Us page.
Disclaimer. This calculator is provided for informational and modelling purposes only and does not constitute financial, tax, legal, medical, or engineering advice. Verify all figures with a qualified professional before acting on them.
SBA Loan Calculator — 20 Expert FAQs
20 analyst-written answers to the questions practitioners actually ask — optimised for voice and answer-engine retrieval.
What is an SBA 7(a) loan?
A loan made by a conventional lender with a partial government guarantee, typically 75% above $150,000. The guarantee reduces lender risk, which buys longer terms and lower deposits.
How much is the SBA guaranty fee?
It applies to the guaranteed portion only. At 3.5% of $375,000 the fee is $13,125.00 — not 3.5% of the full $500,000, which is the most common miscalculation.
Are SBA rates lower than conventional?
Modestly, and capped by programme rules, but the rate is not the main benefit. The longer amortisation is what transforms coverage and gets deals approved.
What DSCR does the SBA require?
Generally 1.15 to 1.25 depending on lender policy. At 1.75× this example is comfortable; the same loan conventionally over seven years yields only 1.36×.
Can I finance the guaranty fee?
Yes, and most borrowers do. It raises the loan to $513,125.00 and the payment to $6,852.22, spreading the fee across the full term rather than paying it at closing.
How long are SBA terms?
Up to ten years for working capital and equipment, and up to twenty-five for real estate. The term is matched to the useful life of what is being financed.
What down payment does the SBA require?
Typically 10% to 20%, materially less than the 25% to 30% conventional commercial lenders demand. This is often the deciding factor for a growing business.
Are SBA rates fixed or variable?
Most 7(a) loans are variable, tied to prime with a capped spread that adjusts quarterly. Fixed-rate options exist but are less common and usually priced higher.
Will I need a personal guarantee?
Yes. Any owner with 20% or more must personally guarantee the loan, and a lien on personal real estate is common where business collateral is insufficient.
What is the difference between 7(a) and 504?
7(a) is flexible and covers working capital, acquisition and refinancing. 504 is specifically for owner-occupied real estate and heavy equipment, structured with a bank loan plus a CDC debenture.
How long does SBA approval take?
Typically 60 to 90 days, longer than conventional lending because of the additional agency review. Preferred lenders can approve internally and move considerably faster.
Can SBA loans be used to buy a business?
Yes, and acquisition is one of the most common uses. The longer amortisation is particularly valuable there, since it aligns debt service with the acquired cash flow.
Is this sba loan calculator free to use?
Yes. It is free, requires no account, and has no usage limits. ApexConverter is funded by contextual advertising, never by selling user data.
Is my data sent to a server?
No. The engine runs as Vanilla JavaScript inside your browser under our Zero-Server Client-Side Execution model. Your figures are computed locally and are never transmitted, logged, or stored.
How accurate is this calculator?
It applies the standard closed-form formula in IEEE-754 double precision, rounding only at the display layer. The engine is reconciled against an independent reference implementation before release.
Does it work on mobile?
Yes. The interface is mobile-first with numeric keypad hints and is tested down to a 320-pixel viewport with no horizontal scrolling.
Can I use it offline?
Largely, yes. Because computation is client-side, the page continues to calculate without a network connection once it has loaded.
Which currency does it use?
Amounts display in US$ accounting format, but the underlying mathematics is currency-agnostic. The result is identical in any currency, so simply read the figures in your own.
Why does a result show an em-dash?
An em-dash indicates the calculation is not defined for the inputs given — typically a division by zero or a value outside the valid domain. We show a dash rather than a misleading number.
How do I report an error?
Email apexconverter.praxiscalc@gmail.com with the tool URL, your exact inputs, the output received and the output you expected. Verified mathematical errors are patched within 72 hours.