Business Loan Calculator

The Business Loan Calculator calculates the payback amount and the total costs of a business loan. The calculator can also take the fees into account to determine the true annual percentage rate, or APR for the loan. The APR gives borrowers a more accurate assessment of a loan's actual cost.

$
%
years
months
%
$
$
Result
Payback every month $212.47
Total of 60 loan payments $12,748.23
Interest $2,748.23
Interest + fee $3,998.23
Real rate (APR) 15.931%
71% Principal
20% Interest
9% Fee
Related Loan Calculator Interest Calculator
Business Loan Amortization Schedule
Loan Balance & Cumulative Interest Over Time
Period Payment Principal Interest Total Interest Ending Balance
Commercial Partner Equity & Debt Share Fraction Calculator

Calculate precise fraction arithmetic (addition, subtraction, multiplication, and division) for co-borrowers, partner debt liabilities, and commercial ownership allocation.

Exact Fraction Result 5/6
Decimal Value 0.8333
Visual Fraction Proportion, Comparison Bar & Number Line
Fraction 1:
Fraction 2:
Result:

Comprehensive Guide to Business Loans, Commercial Debt & True APR

When applying for commercial capital, evaluating a business loan requires looking far beyond the nominal interest rate quoted on a term sheet. Lenders routinely incorporate front-end origination fees, application underwriting surcharges, documentation fees, and mandatory guarantee levies that immediately reduce the net liquid funding received by your enterprise. The Annual Percentage Rate (APR) incorporates both contract interest and mandatory financing fees, revealing the true actuarial cost of debt on an annualized basis.

Nominal Interest Rate vs. Real Business Loan APR

The nominal interest rate is the baseline percentage applied to the outstanding principal balance to compute ongoing monthly interest expenses. In contrast, Real APR is an annualized actuarial rate calculated under Truth in Lending principles that solves for the Internal Rate of Return (IRR) where net disbursed capital precisely equals the discounted present value of all scheduled repayments. Because upfront fees reduce initial proceeds while monthly payments remain unchanged, the Real APR is consistently higher than the nominal note rate.

Commercial Fee Structures & Net Capital Disbursed

Commercial lenders structure loan expenses into three primary categories: upfront origination fees (typically 1% to 6% of gross principal), documentation and legal preparation fees ($500 to $2,500 for legal review, UCC filings, and environmental audits), and ongoing servicing fees. When borrowing $10,000 with a 5% origination fee ($500) and $750 in documentation fees, the net capital received is $8,750. Yet monthly repayments are calculated on the full $10,000 principal, elevating the effective annual borrowing cost to 15.931%.

Debt Service Coverage Ratio (DSCR) & Commercial Underwriting

Underwriters assess commercial loan eligibility through the Debt Service Coverage Ratio (DSCR), defined as DSCR = Net Operating Income (NOI) / Total Annual Debt Service. A DSCR of 1.0 represents breakeven, while commercial banks and Small Business Administration (SBA) lenders typically mandate a minimum DSCR of 1.20x to 1.35x. Utilizing our Business Loan Calculator allows business owners and chief financial officers to compute exact debt service figures and verify DSCR covenant compliance prior to formal submission.

SBA Loan Programs vs. Traditional Bank Term Loans

The U.S. Small Business Administration backs several loan vehicles, notably the SBA 7(a) flagship program (up to $5 million for working capital and debt refinancing), the CDC/504 program (long-term fixed-rate financing for owner-occupied commercial real estate and heavy machinery), and SBA Microloans (up to $50,000 for early-stage ventures). While SBA loans offer competitive interest rates and extended repayment terms up to 10 to 25 years, borrowers must account for SBA guarantee fees ranging from 2% to 3.75%, which impact the overall APR.

Co-Borrower Equity Splits & Fractional Partner Debt Allocation

Commercial enterprises frequently operate under multi-member LLCs, joint partnerships, and equity syndicates where borrowing obligations and equity interests are split non-equally. Using our integrated Partner Equity & Debt Fraction Calculator, business partners can calculate exact fraction arithmetic (such as 1/2 + 1/3 = 5/6 equity stakes), proportional liability for monthly loan payments, and fair capital contribution schedules down to the exact fraction and decimal value.

What is the difference between a business loan's interest rate and APR?
The interest rate reflects solely the percentage charged on the outstanding loan balance. The APR (Annual Percentage Rate) incorporates the interest rate plus all mandatory financing fees (such as lender origination fees, documentation charges, and closing costs), giving borrowers the true annual cost of borrowing.
How does the origination fee affect my loan payback?
Origination fees are deducted upfront from your gross loan amount. While your monthly payback installment is calculated based on the gross loan amount, you receive less net cash at closing, which significantly increases your effective borrowing cost (Real APR).
What is an amortization schedule in a commercial loan?
An amortization schedule is a complete table of periodic loan payments detailing the precise distribution of each payment between interest expense and principal reduction, alongside the remaining balance at the end of every period.
What credit score and financial metrics do lenders look for?
Most commercial banks and SBA lenders look for a personal credit score of 680+, a minimum of 2 years of profitable business operations, annual revenue exceeding $100,000 to $250,000, and a Debt Service Coverage Ratio (DSCR) of at least 1.25x.
How do partners calculate fractional debt liabilities?
Partners can use our Fraction & Equity tool to divide debt service based on percentage or fractional equity ownership (e.g. 1/2 and 1/3 ownership splits), ensuring equitable cash contributions toward monthly loan installments.