Commercial mortgages UK borrowers rely on remain one of the most powerful ways to stop pouring money into rent and start building equity in your own premises. Yet many SME owners assume the application process is too complex, the deposits too steep, or that lenders will only deal with large corporates. The reality in 2026 is very different, and the right finance broker can open doors that the high street alone will not.
Whether you are buying the unit you currently lease, refinancing an existing loan onto better terms, or adding a property to your investment portfolio, understanding how commercial mortgages work will help you secure the right deal. This guide covers what a commercial mortgage is, the rates and deposits to expect this year, who qualifies, and the practical steps to a successful application.
What is a commercial mortgage?
A commercial mortgage is a loan secured against a property used for business purposes rather than as a private home. It works much like a residential mortgage, with the property acting as security, but the terms, pricing and underwriting are tailored to trading businesses and property investors. Commercial mortgages in the UK typically run over 5 to 25 years and can be used to purchase premises outright, release equity from property you already own, or refinance existing borrowing.
Lenders broadly split commercial mortgages into two categories. Owner-occupied mortgages are for businesses buying premises they will trade from, such as a workshop, shop, office or warehouse. Commercial investment mortgages are for landlords buying property to let to other businesses. The category affects how a lender assesses affordability, so it is worth being clear about your purpose from the outset. If you would like a tailored view, our commercial mortgages and property finance team can talk you through the options.
Commercial mortgage rates and deposits in 2026
Commercial mortgage rates are priced individually rather than from a fixed rate card, because every business and property carries a different risk profile. In 2026, most deals are quoted as a margin over the Bank of England base rate or over SONIA, and pricing reflects the strength of your trading figures, the loan to value, and the type of property. As a general guide, the stronger your financials and the larger your deposit, the sharper the rate you can expect.
| Mortgage type | Typical deposit | Maximum loan to value | Typical term |
|---|---|---|---|
| Owner-occupied premises | 20% to 30% | Up to 80% | 5 to 25 years |
| Commercial investment | 25% to 40% | Up to 75% | 5 to 25 years |
| Semi-commercial (mixed use) | 25% to 35% | Up to 75% | 5 to 25 years |
On top of the deposit, budget for arrangement fees of around 1% to 2% of the loan, a valuation fee, and legal costs for both you and the lender. A good broker will factor every cost into the headline comparison so there are no surprises later.
Who is eligible for commercial mortgages UK lenders offer?
Eligibility for commercial mortgages UK lenders provide comes down to affordability, security and track record rather than a single credit score. Underwriters want to see that the business can comfortably service the repayments and that the property offers solid security. The most common requirements are set out below.
- A deposit of 20% to 40% of the property value, depending on the deal type.
- Two to three years of trading accounts, although newer businesses can still qualify with a strong case.
- Evidence of affordability, usually demonstrated through net profit or rental income covering the repayments comfortably.
- An acceptable property in a lettable or usable condition, supported by a professional valuation.
- A clean or well-explained credit history for the business and its directors.
Do not be put off if you do not tick every box. Specialist lenders take a more flexible view than the high street, and a broker who knows the market can match your circumstances to the right funder. Businesses that fall just outside mainstream criteria often still secure competitive terms.
Commercial mortgages versus other business funding
A commercial mortgage is rarely the only option on the table. If you need to buy premises, a mortgage is usually the most cost-effective route because it spreads the cost over many years and builds equity. If you need funds for stock, equipment or general growth rather than property, an unsecured or secured business loan may be a better fit. Many growing SMEs use both, financing the building with a mortgage and using a separate facility for working capital.
Refinancing is another frequently overlooked benefit. If you bought your premises some years ago, the equity built up since then can be released through a remortgage to fund expansion, refurbishment or acquisitions, often at a lower cost than other forms of borrowing. Reviewing an existing commercial mortgage every few years is simply good financial housekeeping.
How to apply for a commercial mortgage
The application process is more straightforward than most owners expect, particularly with a broker handling the legwork. Start by gathering your last two to three years of accounts, recent management figures, bank statements and details of the property. A lender will then issue an agreement in principle, instruct a valuation, and move to a formal offer once underwriting is complete. From application to completion typically takes 6 to 12 weeks, depending on the property and legal process.
The single biggest factor in a smooth application is presenting your business well to the right lender. That means a clear story behind the numbers, realistic projections, and an approach to a funder whose appetite matches your sector and property type. This is exactly where an experienced broker adds value, comparing the whole market rather than a single bank’s products.
Get expert help with your commercial mortgage
Securing the right commercial mortgage can save thousands of pounds over the life of the loan and put your business on a firmer footing. At Growth Business Finance we compare lenders across the whole of market to find terms that fit your trading position and plans, and we manage the process from first enquiry to completion.
Get in touch with Growth Business Finance for a free, no-obligation consultation. Call us on 020 3432 2341 or apply online at growthbusinessfinance.com today.