Last Updated
Top 10 Lenders for £750,000 Buy-to-Let Business Finance in 2026
.png)
Top 10 Lenders for £750,000 Buy-to-Let Business Finance – at a glance
| Rank | Lender | Best for | Published loan range | Loan rate |
|---|---|---|---|---|
| 1 | One Stop Business Finance | Large BTL loans for portfolio landlords and SPV structures | £100,000 to £3,000,000 | interest 1.6% to 3% monthly |
| 2 | Inhale Capital | Fast BTL funding for property investors needing quick completion | £0 to £2,000,000 | interest 1.05% to 1.3% monthly |
| 3 | Brightstar | Flexible BTL mortgages for landlords building or refinancing portfolios | From £50,000 | interest 5% to 12% annually |
| 4 | NatWest Bank | Bank BTL mortgage for established businesses with strong turnover | £500 to £10,000,000 | interest 4.5% to 10.5% annually |
| 5 | Virgin Money | Bank commercial mortgage for trading businesses with 12-month history | £30,000 to £10,000,000 | interest 4.5% to 10.5% annually |
| 6 | Barclays | Large-scale business mortgages for substantial property portfolios | £1,000 to £25,000,000 | interest 8.5% to 14.9% annually |
| 7 | Offa | Specialist buy-to-let product for SPV and limited company landlords | £80,000 to £2,500,000 | interest 5.9% to 7.5% annually |
| 8 | Together Money | Wide-range BTL mortgages for portfolio investors at any scale | £50,000 to £25,000,000 | interest 0.55% to 1.5% monthly |
| 9 | Shireassetfinance | Commercial mortgages capped at £750K; suited to single properties | £5,000 to £750,000 | interest 4.5% to 12% monthly |
| 10 | MT Finance | BTL term and bridging finance for experienced property investors | £50,000 to £10,000,000 | interest 0.89% to 1.05% monthly |
A commercial mortgage for buy-to-let is a loan secured against a residential investment property held within a limited company or SPV structure. Property investors use this type of finance to purchase or refinance rental properties through a corporate vehicle, which can offer tax efficiency advantages over personal borrowing. At the £750,000 level, this funding typically supports a single high-value buy-to-let property or a small portfolio acquisition.
Comparing lenders for buy-to-let business finance means looking beyond the headline rate. Stress rate calculations directly affect how much you can borrow, with each lender applying its own interest cover ratio and notional rate assumptions. The split between interest-only and capital repayment options shapes cash flow, particularly for portfolio landlords. Lender experience with limited company and SPV structures, plus minimum portfolio size requirements, can determine whether an application proceeds at all.
Important note:
Funding Agent
Published loan rangeFrom £10,000 to up to £1,000,000
Rate typeInterest from 6.8% annually
Why it is included:It is included because many business owners need to compare several finance routes before choosing where to apply.
Funding Agent can help businesses compare suitable options across a lender panel, especially when eligibility depends on turnover, sector, trading history, credit strength and available documents.
Best use case: When the borrower wants to avoid applying to one lender at a time.
More info
Company stats
Eligibility
Loan range
Rates and debtor rules
Why it stands out
- Useful when a business wants to compare lender fit rather than guess which lender to apply to first.
- Can help position the application around the funding purpose, trading profile and available documents.
- Works well as a conversion route for readers who are unsure whether a direct lender will approve a larger unsecured facility.
Need to know
- Funding Agent is a broker, not a lender.
- The lender, not Funding Agent, sets the final rate, term, fees and approval decision.
- The best match may be unsecured, secured, revolving credit, invoice finance or another product depending on the case.
Expert take
Funding Agent is a useful honourable mention for business owners who want to compare lender options before submitting a full application. A larger unsecured loan is not always approved by the first lender a business finds, so understanding lender fit early can reduce wasted time and avoid unnecessary declines.
One Stop Business Finance
Published loan range£100,000 to £3,000,000
Rate typeinterest 1.6% to 3% monthly
Overview: For limited companies and portfolio landlords, One Stop Business Finance writes secured facilities that fund buy-to-let purchases, refinances, and mixed-use or HMO conversions. The five-day turnaround after valuation suits investors who need to move faster than bank timelines allow. Security is required and monthly rates apply, so the trade-off is cost for flexibility.
Best next step: Check eligibility for a £750,000 buy-to-let facility.
More info
Company stats
Eligibility
Loan range
Rates and debtor rules
Benefits
- Lends against HMO and mixed-use property
- Funding from £100,000 to £3,000,000
- Decisions in five days after valuation
Need to know
- Security against property is required
- Monthly interest rates apply throughout
- Trading history will be assessed
Expert take
A secured lender comfortable with deals banks turn away. For a £750,000 buy-to-let investment, their appetite for HMOs, mixed-use blocks, and portfolio landlords means fewer dead ends when the property type is less standard.
Source:https://www.osbf.co.uk/
Inhale Capital
Published loan range£0 to £2,000,000
Rate typeinterest 1.05% to 1.3% monthly
Overview: Inhale Capital funds property-backed bridging deals within 24 hours, which matters for buy-to-let investors buying at auction or racing a tight completion deadline. Rates start at 1.05% monthly and the upper limit reaches £2,000,000. This is short-term bridging rather than a long-term mortgage, so an exit plan is essential.
Best next step: Explore bridging finance for auction buy-to-let purchases.
More info
Company stats
Eligibility
Loan range
Rates and debtor rules
Benefits
- Funding in as little as 24 hours
- Rates from 1.05% per month
- Loans available up to £2,000,000
Need to know
- Short-term bridging only, not a mortgage
- A clear exit strategy is needed
- Property valuation and legal costs apply
Expert take
A bridging specialist built for speed, not patience. For a £750,000 buy-to-let at auction or under time pressure, the 24-hour completion window is what sets them apart from every mainstream lender on this list.
Brightstar
Published loan rangeFrom £50,000
Rate typeinterest 5% to 12% annually
Overview: Brightstar quotes annual rates between 5% and 12%, which can make cost comparisons simpler for investors used to standard mortgage pricing rather than monthly bridging rates. The lender accepts applications from £50,000 upward and has experience with buy-to-let, development, and refinance cases. Turnaround can be as quick as 24 hours, though complex properties need longer underwriting.
Best next step: Compare annual-rate funding for your buy-to-let investment.
More info
Company stats
Eligibility
Loan range
Rates and debtor rules
Benefits
- Annual interest rates for easy comparison
- Funding from £50,000 with no hard cap
- Decisions possible within 24 hours
Need to know
- Rates vary with property type and risk
- Complex cases need longer underwriting
- Valuation and legal fees are separate
Expert take
A property-secured lender that prices in annual terms, which landlords used to mortgage comparisons find easier to weigh up. For a £750,000 buy-to-let, their familiarity with investment property cases means fewer surprises during underwriting.
.png)
NatWest Bank
Published loan range£500 to £10,000,000
Rate typeinterest 4.5% to 10.5% annually
Overview: NatWest writes commercial mortgages from £500 to £10,000,000, covering buy-to-let purchases and portfolio refinancing within standard banking terms. Annual rates from 4.5% to 10.5% make it one of the lower-cost routes for a £750,000 investment property, particularly for limited companies with clean trading records. Underwriting is thorough and bank timelines apply, so expect a more measured process.
Best next step: Review NatWest's commercial mortgage terms for landlords.
More info
Company stats
Eligibility
Loan range
Rates and debtor rules
Benefits
- Annual rates from 4.5% on commercial mortgages
- Lending up to £10,000,000 for portfolios
- Established high-street lender with clear terms
Need to know
- Full bank underwriting takes several weeks
- Strong trading history typically required
- Personal guarantee may be requested
Expert take
A high-street heavyweight whose commercial mortgage book includes buy-to-let. For a £750,000 investment property held in a limited company, the rate advantage is real, provided the business can wait out a full banking underwrite.
Source:https://www.natwest.com/business/loans-and-finance.html
Virgin Money
Published loan range£30,000 to £10,000,000
Rate typeinterest 4.5% to 10.5% annually
Overview: Virgin Money lends on commercial mortgages for property investment, with facilities from £30,000 to £10,000,000 covering the £750,000 buy-to-let bracket. Their annual rates mirror high-street pricing and the bank has experience working with limited company landlords building or refinancing portfolios. Expect standard bank due diligence: affordability checks, rental stress tests, and potentially a few weeks to completion.
Best next step: See Virgin Money's buy-to-let commercial mortgage rates.
More info
Company stats
Eligibility
Loan range
Rates and debtor rules
Benefits
- Commercial mortgages for buy-to-let portfolios
- Annual rates aligned with high-street pricing
- Lends from £30,000 to £10,000,000
Need to know
- Standard bank underwriting can take weeks
- Affordability and rental stress tests apply
- Limited company accounts will be reviewed
Expert take
A mainstream bank with a genuine appetite for property investment lending. For a £750,000 buy-to-let held in a limited company, Virgin Money delivers the pricing and stability landlords want, minus the speed alternative lenders bring.
Source:https://uk.virginmoney.com/business/business-borrowing/
Barclays
Published loan range£1,000 to £25,000,000
Rate typeinterest 8.5% to 14.9% annually
Overview: Barclays writes business mortgages from £1,000 to £25,000,000, giving it the widest upper limit among the high-street lenders listed here. For a £750,000 buy-to-let purchase or refinance, that means scope to grow the portfolio without outgrowing the lender. Annual rates run from 8.5% to 14.9%, placing Barclays toward the higher end of bank pricing for secured property lending.
Best next step: Check Barclays business mortgage terms for buy-to-let.
More info
Company stats
Loan range
Rates and debtor rules
Benefits
- Business mortgages up to £25,000,000
- Broad product coverage across sectors
- Long-established lender with stable criteria
Need to know
- Rates start higher than some high-street peers
- Full underwriting with business plan review
- Security and personal guarantee may apply
Expert take
A banking giant whose business mortgage arm can handle buy-to-let at scale. For a £750,000 property investment, the £25 million ceiling means you are not near the top of what they can lend if the portfolio grows.
Offa
Published loan range£80,000 to £2,500,000
Rate typeinterest 5.9% to 7.5% annually
Overview: Offa offers a named buy-to-let product with annual rates between 5.9% and 7.5%, making it one of the few lenders here with a facility specifically branded for landlord investors rather than a general commercial mortgage. The loan range spans £80,000 to £2,500,000 and decisions can come through in as little as an hour. Sharia-compliant structuring is available, though income or portfolio criteria may apply.
Best next step: Explore Offa's dedicated buy-to-let product range.
More info
Company stats
Eligibility
Loan range
Rates and debtor rules
Benefits
- Dedicated buy-to-let product, not general lending
- Annual rates from 5.9% to 7.5%
- Decisions as fast as one hour
Need to know
- Minimum loan size of £80,000 applies
- Portfolio or income criteria may be tested
- Sharia-compliant structure differs from conventional
Expert take
A specialist with a genuine buy-to-let product line, which means the underwriting is built around rental property rather than adapted from business lending. For a £750,000 investment, that product focus often translates to smoother criteria checks.
Source:https://offa.co.uk/
Together Money
Published loan range£50,000 to £25,000,000
Rate typeinterest 0.55% to 1.5% monthly
Overview: Together Money writes buy-to-let mortgages from £50,000 to £25,000,000, covering single-property investors and portfolio landlords. Monthly rates range from 0.55% to 1.5%, translating to competitive annualised pricing for borrowers comfortable with monthly interest calculations. The lender takes a common-sense view on credit events and complex income structures that banks might decline.
Best next step: Review Together Money's buy-to-let mortgage criteria.
More info
Company stats
Loan range
Rates and debtor rules
Benefits
- Buy-to-let mortgages up to £25,000,000
- Flexible view on credit histories
- Monthly rates from 0.55%
Need to know
- Monthly rate structure, not annual pricing
- Full property valuation is required
- Exit or repayment strategy will be assessed
Expert take
A lender that built its reputation on saying yes where banks say no. For a £750,000 buy-to-let, Together Money's flexibility on credit history and borrower circumstances can unlock deals that stall elsewhere without sacrificing the scale for larger sums.
Source:https://togethermoney.com/
Shireassetfinance
Published loan range£5,000 to £750,000
Rate typeinterest 4.5% to 12% monthly
Overview: Shireassetfinance advertises a four-hour decision window on commercial mortgages, which puts it among the faster responders for buy-to-let investors needing quick certainty. Rates are quoted on a monthly basis from 4.5% to 12% and the lender may also consider secured business loans or asset-backed facilities where a pure commercial mortgage is not the best fit.
Best next step: See Shireassetfinance's commercial mortgage decision speed.
More info
Company stats
Loan range
Rates and debtor rules
Benefits
- Decisions in as little as four hours
- Commercial mortgages and secured loans available
- Start from £5,000 for smaller needs
Need to know
- Monthly interest rates apply, not annual
- Published upper limit is £750,000
- Security against property is required
Expert take
A responsive lender that combines commercial mortgages with secured loan options under one roof. For a £750,000 buy-to-let, the four-hour decision speed gives investors negotiating leverage, though the monthly rate structure rewards those who exit or refinance quickly.
MT Finance
Published loan range£50,000 to £10,000,000
Rate typeinterest 0.89% to 1.05% monthly
Overview: MT Finance charges monthly rates from 0.89% to 1.05% on bridging facilities between £50,000 and £10,000,000, positioning it as a cost-competitive option for buy-to-let investors who need short-term property-backed funding. The 24-hour completion timeline suits auction purchases and chain-breaking scenarios. Like all bridging lenders, MT Finance expects a defined exit route, whether refinance or sale.
Best next step: Compare MT Finance bridging rates for buy-to-let.
More info
Company stats
Loan range
Rates and debtor rules
Benefits
- Monthly rates from 0.89% on bridging
- Loans from £50,000 to £10,000,000
- Completion possible within 24 hours
Need to know
- Bridging only, not a long-term mortgage
- An exit plan must be demonstrated
- Property valuation and legal fees apply
Expert take
A bridging lender with rates that undercut many peers on this list. For a £750,000 buy-to-let purchase that needs completing at pace, MT Finance pairs cost-conscious pricing with the speed investors expect from short-term property finance.
Source:https://www.mt-finance.com/
Commercial Mortgage Calculator
How limited company buy-to-let structures affect a £750,000 commercial mortgage
Most property investors borrowing at the £750,000 level use a special purpose vehicle (SPV) limited company rather than applying as an individual. Lenders on this list structure their offers to accommodate limited company buy-to-let finance, and many actively prefer this route for larger loans.
When you borrow through a limited company, the lender assesses the rental income generated by the property rather than your personal salary. This means the strength of the investment case often carries more weight than your individual tax return. Several lenders featured here publish maximum LTVs between 70% and 80%, including MT Finance at 70%, One Stop Business Finance and Inhale Capital both at 75%, and Offa at 80%. Brightstar stands out by offering up to 100% LTV, which may suit investors with additional security to pledge.
Bear in mind that limited company buy-to-let mortgages typically carry slightly higher rates than personal BTL products. However, the tax advantages of holding investment property within a company structure often outweigh the marginal rate difference for higher-rate taxpayers.
Stress rate calculations lenders use for £750,000 buy-to-let business finance
Before approving a £750,000 buy-to-let facility, lenders apply a stress test to confirm the rental income can comfortably cover the loan repayments. This is typically expressed as an interest cover ratio (ICR), with most commercial mortgage lenders requiring rental income to exceed the mortgage payment by 125% to 145%.
The stress rate is the notional interest rate the lender uses for this calculation rather than your actual pay rate. Many high street and specialist lenders on this list apply a stress rate of around 5% to 5.5% per year, even if your actual rate is lower. For a £750,000 interest-only mortgage, a 5% stress rate means the lender needs to see at least £37,500 in annual rental income before applying the ICR multiplier.
NatWest, Virgin Money, and Barclays all publish annual rates for their commercial mortgage products, making stress calculations more predictable. Specialist lenders such as One Stop Business Finance and Inhale Capital quote monthly rates instead, so you will need to annualise these figures when comparing overall affordability across different providers.
Interest-only versus repayment options on a £750,000 buy-to-let commercial mortgage
Most buy-to-let business finance at the £750,000 level is structured on an interest-only basis. This means your monthly payments cover only the interest charged by the lender, keeping outgoings lower and maximising your net rental yield. The full loan balance is then repaid at the end of the term, typically through a property sale, remortgage, or other investment realisation.
Some lenders on this list also offer capital repayment mortgages for buy-to-let purposes. Choosing repayment means you gradually reduce the debt over the term, building equity steadily. The trade-off is a higher monthly cost, which reduces immediate cash flow. Given that lenders in this group publish annual rates ranging from 4.5% with NatWest and Virgin Money to 14.9% with Barclays, the difference between interest-only and repayment can be substantial on a £750,000 facility.
For limited company borrowers, interest-only is the more common choice because mortgage interest is treated as a deductible business expense, making the structure tax-efficient regardless of whether you are repaying capital.
Portfolio size, landlord experience and tax efficiency for £750,000 BTL business finance
Lenders reviewing a £750,000 buy-to-let application will typically look at your broader portfolio and track record as a landlord. Portfolio landlords with four or more mortgaged properties often face additional underwriting checks, including a review of total borrowing across all properties and the overall health of the portfolio. First-time landlords at this loan size may encounter stricter LTV caps or higher rate pricing.
The lenders on this list have varying minimum loan thresholds. NatWest starts from as low as £500, Virgin Money from £30,000, and Together Money from £50,000. These lower entry points mean you can often build a relationship with a lender on smaller properties before scaling to a £750,000 facility. Maximum loan sizes also vary considerably, with Barclays reaching £25 million and Together Money offering up to £25 million, giving growing portfolios room to expand.
From a tax perspective, holding buy-to-let properties in a limited company allows full mortgage interest relief against rental profits. This has made limited company structures the dominant choice for higher-rate taxpayers building portfolios at the £750,000 level and beyond.
