If you’re weighing up how to fund a property purchase, an expansion, or day-to-day working capital, the choice mainly comes down to two major routes: a commercial mortgage or a business loan.
To answer this simple question, we can say that you should prefer a commercial mortgage if you’re buying, refinancing, or investing in a property, and use a business loan if you require working capital, equipment, or a smaller, faster injection of cash that isn’t tied to bricks and mortar. Commercial mortgages are secured against property, run for longer terms (typically 3–25 years), and carry lower interest rates because the lender has a physical asset to fall back on. Business loans, particularly unsecured ones, are quicker to arrange, more flexible in how you spend them, but usually cost more in interest because the lender is taking on more risk.
The rest of this guide breaks down exactly how the two products differ, when each one makes sense, what lenders will expect from you, and how much you might realistically be able to borrow.
Commercial Mortgage vs Business Loan: What’s the Difference?
At the simplest level, the difference is about purpose and security.
A commercial mortgage is a long-term loan secured against a specific commercial property, an office, shop, warehouse, or industrial unit, and it can only really be used to buy, refinance, or develop that property. A business loan, by contrast, is general-purpose finance. It can be secured or unsecured, is usually repaid over a much shorter term, and can be used for almost anything the business needs: stock, payroll, marketing, equipment, or expansion costs that don’t involve buying a building.
Since, a commercial mortgage is secured by a tangible, valuable asset, lenders generally see it as lower risk, which is reflected in lower interest rates and larger loan amounts. Business loans, especially unsecured ones, carry more risk for the lender and therefore tend to come with higher rates, shorter terms, and lower borrowing limits.
What Is a Commercial Mortgage?
A commercial mortgage is a loan provided by a bank, building society, or specialist lender to help a business purchase, refinance, or develop a commercial property. As with a residential mortgage, the loan is secured against the property itself, meaning if repayments aren’t kept up, the lender has the legal right to repossess and sell the property to recover its money.
Commercial mortgages generally fall into two categories:
- Owner-occupier mortgages: For businesses buying the premises they’ll trade from themselves (a shop owner buying their own retail unit, for example).
- Commercial investment mortgages: For businesses or investors buying property to let out to other tenants, where affordability is assessed against expected rental income rather than trading profits.
Lenders typically offer commercial mortgages over terms of 3 to 25 years, at loan-to-value (LTV) ratios of around 60–75%, meaning you’ll usually need a deposit of 25–40% of the property’s value. Rates vary widely depending on the lender, the property type, and the strength of your application, but as a general guide, UK commercial mortgage rates in 2026 span roughly 5% to 9.5% for fixed-rate deals, with variable rates typically priced at 2–5.5% above the Bank of England base rate.
What Can a Commercial Mortgage Be Used For?
Commercial mortgages are specifically designed for property-related purchases, including:
- Buying the freehold of premises your business already trades from (moving out of rented space into ownership)
- Buying a new commercial property to expand or relocate your operations
- Purchasing a property purely as an investment, to let to other businesses
- Refinancing an existing commercial mortgage to secure a better rate or release equity
- Funding a mixed-use or semi-commercial purchase (e.g., a shop with a flat above it)
- Financing the development or renovation of commercial premises, in some cases
What a commercial mortgage generally can’t be used for is anything unrelated to the property; you wouldn’t use one to cover payroll, buy stock, or fund a marketing campaign.
What Is a Business Loan?
A business loan is a lump sum of capital advanced to a company, which is then repaid, usually in fixed monthly instalments, over an agreed term. Unlike a commercial mortgage, a business loan doesn’t have to be tied to a property purchase, and it can be either secured (against business assets, property, or a personal guarantee) or unsecured (based purely on the business’s financial strength and creditworthiness).
Business loan terms are typically much shorter than commercial mortgages, from a few months up to around seven years for unsecured lending, though secured business loans can sometimes run longer. Because unsecured loans carry more risk for the lender, interest rates tend to be higher: broadly 6–8% APR for well-established, low-risk businesses, rising to 15–25%+ APR for newer businesses or weaker credit profiles. Secured business loans, where some form of collateral is offered, tend to be priced a few percentage points lower.
What Can a Business Loan Be Used For?
Business loans are deliberately flexible and can typically be used for:
- Working capital and cash flow management (covering gaps between invoicing and payment)
- Purchasing stock or inventory
- Buying equipment, machinery, or vehicles
- Hiring staff or covering payroll during a growth phase
- Marketing, rebranding, or launching new products
- Refinancing existing business debt
- Renovating or fitting out rented premises (as opposed to buying them outright)
- General business expansion that doesn’t involve a property purchase
Lenders don’t usually restrict how the funds are spent (beyond requiring it to be for legitimate business purposes); a business loan is often the more practical choice when your need for funding isn’t specifically about acquiring a building.
Commercial Mortgage vs Business Loan: Key Differences
Purpose
A commercial mortgage exists for one core purpose: acquiring or refinancing property. A business loan is far broader and can cover almost any operational or growth need, from stock purchases to staff costs to equipment.
Security
Commercial mortgages are always secured against the property being purchased. Business loans can be either secured (against other business assets, equipment, or sometimes property) or unsecured, where approval is based on the business’s trading history, turnover, and creditworthiness rather than collateral. Many unsecured business loans still require a personal guarantee from a director, meaning personal assets could be at risk if the business defaults, even without a formal charge over a specific asset.
Loan Amount
Commercial mortgages tend to allow for much larger borrowing, often hundreds of thousands to millions of pounds, since the loan size is tied to the value of the property and typically capped at 60–75% of that value. Business loans are usually smaller: unsecured facilities commonly range from around £5,000 to £250,000, though larger secured business loans are available for stronger, larger businesses.
Repayment Terms
Commercial mortgages are long-term commitments, typically spanning 3 to 25 years, similar in structure to a residential mortgage. Business loans are considerably shorter, often 3 months to 7 years for unsecured lending, reflecting their use for shorter-term or more immediate business needs.
Interest Rates and Costs
Since, commercial mortgages are secured against a valuable, relatively stable asset, they generally carry lower interest rates, roughly 5% to 9.5% in the current UK market, depending on LTV, property type, and borrower strength. Unsecured business loans, carrying more risk for the lender, are priced higher, typically 6% to 25%+ APR.
Get Help Finding the Right Commercial Finance
Choosing between a commercial mortgage and a business loan, and finding the right lender within either category, can be genuinely complex. Rates, LTVs, and criteria vary significantly from one lender to the next, and commercial finance generally isn’t published or compared as transparently as residential mortgages or personal loans.
If you’re not sure which route fits your situation, or want help comparing options across the market, speaking with a whole-of-market commercial finance broker is usually the fastest way to get a clear, tailored answer and can often uncover rates and terms that aren’t advertised directly by lenders.
Frequently Asked Questions (FAQs)
Q1: Is a commercial mortgage the same as a business loan?
No. A commercial mortgage is a specific type of secured, long-term business loan used only to buy, refinance, or develop property. “Business loan” is a broader term that covers general-purpose finance, which can be secured or unsecured and used for almost any business purpose.
Q2: Is a commercial mortgage better than a business loan?
Neither is universally “better”; it depends on what you’re funding. A commercial mortgage is usually the better (and cheaper) option specifically for property purchases, thanks to its lower rates and longer terms.
Q3: Can I use a business loan to buy commercial property?
In theory, an unsecured business loan’s funds aren’t usually restricted to a specific purpose, so it’s not strictly impossible. In practice, though, unsecured loan amounts (commonly capped in the tens or low hundreds of thousands) are rarely large enough to cover a full commercial property purchase.
Q4: Are commercial mortgages secured?
Yes. Every commercial mortgage is secured against the property being purchased or refinanced. If repayments aren’t maintained, the lender has the legal right to repossess and sell the property to recover the outstanding debt.
Q5: How long does a commercial mortgage take to arrange?
Commercial mortgages typically take longer to complete than business loans, often several weeks to a few months, because the process involves a formal property valuation, legal due diligence, and detailed underwriting of the business’s or the property’s income. Business loans, particularly unsecured ones from fintech lenders, can sometimes be approved and paid out within a day or two.
