Need help getting funds? Get matched with lenders instantly
Answer some basic questions in less than 3 minutes with no impact to your credit score and compare multiple offers. No commitment, no hassle.
Get Matched💳 Save money on credit card processing with one of our top 5 picks for 2025
Need to calculate how much of a loan you can afford? We'll show you how to calculate the borrowing amount, leverage monthly payments, and improve your business finances.
When you’re comparing business loan options, it’s easy to focus on how much funding you qualify for. But affordability depends on more than approval limits — it comes down to cash flow, existing debt, and how new payments will affect your business over time.
In this guide, we’ll walk through a few key calculations lenders use to evaluate affordability and how you can use the same metrics to decide whether a business loan makes financial sense.
Table of Contents
Before you calculate affordability, it’s worth stepping back to decide whether a loan is the right move for your business at all. Being able to qualify for financing doesn’t automatically mean borrowing is the best option.
Start by looking at the problem you’re trying to solve:
For example, startups may want to consider alternatives like investors or crowdfunding, while businesses struggling with cash flow should first review operating costs and pricing before taking on debt.
If you do decide to borrow, make sure the loan aligns with both your short-term needs and long-term business goals. A clear business plan can help you evaluate whether financing will support growth or simply add financial pressure.
At a basic level, lenders want to know two things: whether your business can afford the loan and whether you’re likely to repay it on time.
To make that determination, lenders typically evaluate:
Together, these factors help lenders assess risk and decide how much they’re willing to lend — and on what terms.
The debt service coverage ratio (DSCR) is one of the primary metrics lenders use to assess whether your business can afford new debt. It measures how your income compares to your existing debt obligations and helps lenders evaluate risk.
You can use the same calculation to determine whether taking on a loan makes financial sense and how much additional debt your business can realistically handle.
In addition to DSCR, lenders may look at your debt-to-income (DTI) ratio, especially if you’re a sole proprietor or personally guaranteeing a business loan. DTI compares your monthly debt obligations to your personal income and helps lenders assess whether you can afford additional payments.
While DTI is most commonly used for personal loans and mortgages, it still plays a role in small business lending when business and personal finances overlap.
Beyond affordability, a business loan should make financial sense. The goal is for the return on investment (ROI) from the loan to outweigh its total cost, including interest and fees.
Before borrowing, be clear about:
If you can’t reasonably connect the loan to a measurable business benefit, taking on debt is likely to create financial pressure rather than growth. A clear plan for how the loan supports your business goals is essential before moving forward.
If a loan doesn’t make sense today, that doesn’t mean it never will. There are several ways to strengthen your financial position so borrowing becomes more realistic in the future.
Common steps include:
If none of these adjustments are feasible right now, it’s usually better to pause and focus on improving fundamentals than to take on debt that adds financial strain.
Before applying for a business loan, make sure you can confidently answer yes to the following:
If these boxes are checked, your business is likely in a solid position to take on new financing. Use DSCR and DTI calculations to estimate a realistic loan size before applying, and compare options carefully to find terms that fit your cash flow.
You can also use our small business loan calculators to model payments and borrowing scenarios before speaking with a lender.
Want to help shape the future of the Merchant Maverick website? Join our testing and survey community!
By providing feedback on how we can improve, you can earn gift cards and get early access to new features.
Our expert reviewers found BusinessLoans.com to have a quick and easy application process alongside excellent support and guidance for borrowers.
Start A Quick Application
Help us to improve by providing some feedback on your experience today.
The vendors that appear on this list were chosen by subject matter experts on the basis of product quality, wide usage and availability, and positive reputation.
Merchant Maverick’s ratings are editorial in nature, and are not aggregated from user reviews. Each staff reviewer at Merchant Maverick is a subject matter expert with experience researching, testing, and evaluating small business software and services. The rating of this company or service is based on the author’s expert opinion and analysis of the product, and assessed and seconded by another subject matter expert on staff before publication. Merchant Maverick’s ratings are not influenced by affiliate partnerships.
Our unbiased reviews and content are supported in part by affiliate partnerships, and we adhere to strict guidelines to preserve editorial integrity. The editorial content on this page is not provided by any of the companies mentioned and has not been reviewed, approved or otherwise endorsed by any of these entities. Opinions expressed here are author’s alone.
Our expert reviewers found BusinessLoans.com to have a quick and easy application process alongside excellent support and guidance for borrowers.
Start A Quick Application