SBA 504 Loan Calculator

This simple SBA 504 loan calculator helps you understand the cost of your loan. See monthly interest & repayment amounts, as well as total interest & cost.

Ian Hawkins

Page written by Ian Hawkins. Last reviewed on June 13, 2024. Next review due October 1, 2025.

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This calculator is intended for illustration purposes only and exact payment terms should be agreed with a lender before taking out a loan.

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  • SBA 504 loan amortization – The process of paying off an SBA 504 loan over time through regular payments that include both principal and interest.
  • First lender amortization – The first lender amortization schedule outlines the payment amounts and timing for repaying the principal and interest of the loan provided by the primary lender.
  • First lender rate – The interest rate charged by the primary lender which determines the cost of borrowing funds from the first lender and determines the overall affordability of the loan for the borrower.

What is an SBA 504 loan?

An SBA 504 loan assists small businesses in acquiring fixed assets such as real estate and equipment. Administered by the U.S. Small Business Administration (SBA), this loan program works in conjunction with Certified Development Companies (CDCs) and private-sector lenders to provide favorable terms and long-term financing options.


The maximum SBA 504 loan amount varies depending on the project's size and scope. Generally, the SBA can provide up to 40% of the total project cost, with standard projects capped at $5 million and certain projects up to $5.5 million.

The decision between an SBA 504 loan and an SBA 7(a) loan depends on factors such as the intended use of funds, project size and borrower qualifications. SBA 504 loans are typically preferred for long-term fixed-rate financing for real estate or equipment purchases, while SBA 7(a) loans offer more flexibility for various business purposes, including working capital and debt refinancing.

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