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Property Finance

How landlords, investors and developers fund property. Buy-to-let and limited company mortgages, commercial lending, bridging, development finance, and the tax question that sits alongside each one.

Property Finance

The essentials

Buy-to-let and limited company mortgages

Most landlord borrowing is a buy-to-let mortgage, priced and stress-tested very differently from a residential loan. Lenders assess the rent against an interest coverage ratio (ICR), typically 125% for a basic-rate or company borrower and 145% for a higher-rate individual, at a notional stress rate rather than the pay rate. Deposit requirements usually start at 20% to 25% of value, and rates are driven by loan-to-value, product type and whether the borrower is an individual or a limited company.

Since Section 24 removed full interest relief for personally held lettings, many higher-rate landlords hold property through a special purpose vehicle (SPV) company, where interest is still deducted in full before corporation tax. That is a finance decision with a large tax overlay, and the two need to be read together rather than in isolation.

Commercial mortgages

Commercial and semi-commercial mortgages fund shops, offices, industrial units and mixed-use property, whether owner-occupied by a trading business or held as an investment. Lending is assessed on the strength of the business or the tenant covenant rather than a simple rent multiple, terms are usually shorter than residential, and many facilities are on a variable or margin-over-base basis. These are business loans and are not regulated in the way a residential mortgage is.

The tax treatment is distinct too. Section 24 does not apply to commercial property, so interest is fully relievable, and capital allowances, the structures and buildings allowance and VAT (including the option to tax) all shape the real cost of ownership.

Bridging finance

Bridging finance is short-term, interest-first lending used to move quickly: buying at auction inside the 28-day completion window, funding a refurbishment before refinancing onto a term mortgage (a bridge-to-let), breaking a chain, or securing a below-market-value purchase. It is priced monthly, secured on the asset, and repaid from a defined exit such as a sale or a remortgage. Investment and business bridging is unregulated lending, distinct from a regulated bridge secured on someone's own home.

The tax questions bridging raises are frequently overlooked, in particular whether the interest is an allowable finance cost and how it interacts with the eventual term financing. That is where the numbers are won or lost.

Development finance

Development finance funds ground-up construction and heavy refurbishment, released in stages against build progress rather than as a single lump sum. Lenders size facilities against gross development value (GDV) and loan-to-cost (LTC), retain an interest roll-up, and look closely at the developer's experience and the exit. Development exit finance can then replace a development loan once a scheme is complete but not yet sold, easing cash flow and reducing the rate.

Development profits are usually taxed as trading income, not capital gains, so the funding structure and the tax structure of a scheme should be planned together from the outset.

Portfolio finance and capital raising

Portfolio landlords face their own lending rules, including aggregate stress testing across all mortgaged properties and lender caps on portfolio size. Remortgaging to release equity is the usual way to fund the next purchase, but capital raised for a genuine business purpose is treated very differently from borrowing drawn for personal use, both for lending and for the finance-cost relief calculation. Getting that distinction right protects both the deal and the tax position.

The library

Every Property Finance article

34 guides, written by specialist property accountants and kept current.

Bridging Finance for Auction Purchases: The 28-Day Clock

A traditional auction contract exchanges on the fall of the hammer and completes in about 28 days, a deadline a term mortgage cannot hit. This guide explains why investors and developers use a bridging loan to complete an auction purchase on time, how the legal pack, deposit and forfeiture risk shape the deal, what the finance costs as a range, and how the interest is treated for tax. Education only, no finance is arranged here.

10 min read

Bridging Finance for a Below Market Value Purchase

Buy a property for less than it is worth and the tempting idea is to borrow against its true value rather than the price you paid, funding the deal with little or none of your own cash. This guide explains the difference between open market value and price, why most lenders anchor to the lower of the two for six months, when a specialist lender will lend against day-one value, the vendor-gifted-deposit mechanism, and the fraud and money-laundering red flags that surround undervalue sales.

10 min read

Bridging Finance for Buy to Let: How Bridge-to-Let Works

Bridging finance for buy to let exists for one job: to buy a property a term BTL mortgage will not touch yet, make it lettable, then refinance onto that BTL mortgage so it redeems the bridge. This guide explains the unmortgageable-now-mortgageable-after test, the day-one-value versus six-month-rule refinance, the cost and LTV ranges (as at July 2026), the consumer buy-to-let fence, and how the interest is taxed for an individual landlord versus an SPV.

12 min read

Bridging Finance for Commercial Property: How It Works

Bridging finance lets an investor or business buy a commercial building that a term mortgage will not yet touch, most often because it is empty. The distinguishing feature of a commercial bridge is the valuation basis: an untenanted unit is lent against on a vacant-possession basis, a discount to what it would be worth let and income-producing, so the loan sits lower than borrowers expect. This guide explains vacant-possession versus investment valuation, why the tenant's covenant and lease length drive the underwrite, the 65% to 70% of vacant-possession value that is typical while a unit is empty, the exit onto a commercial term mortgage once it is let, the risks, and the tax treatment of the interest and the building. It is education, not a finance promotion.

11 min read

Bridging Finance for HMO Conversions: Article 4, Licensing and the Exit

Bridging finance for an HMO conversion is not really a finance question first, it is a planning and licensing question. Whether you can convert a house to a house in multiple occupation, and how many rooms it can hold, is decided by Article 4 directions, permitted development, the sui generis threshold and the local licensing regime long before a lender looks at the numbers. This guide explains the planning and licensing gates that shape the deal, how the bridge funds the purchase and the staged conversion works, why the exit is a specialist HMO mortgage valued on rental income, and how the interest and the conversion costs are taxed. Figures are ranges as at July 2026; verify current pricing with a lender or broker.

11 min read

Bridging Finance for Refurbishment: Light, Heavy and the BRRR Exit

Refurbishment bridging is defined by the works, not the postcode. A cosmetic tidy-up and a structural remodel sit on very different products, with different drawdown mechanics, LTVs and exits. This guide explains the light-versus-heavy line, how stage payments release against a schedule of works, and how the BRRR refinance lets an investor recycle capital into the next project. Education only, with the tax treatment of the interest summarised and linked, not a route to arrange finance.

10 min read

Bridging Loan Lenders in the UK: Types, Market Structure and How to Vet One

The UK bridging market is not one homogeneous group of lenders. Specialist non-bank funders, challenger banks, private lenders and family offices, institutional and peer-to-peer platforms, and brokers running their own funding lines each price and underwrite differently, move at different speeds and have different appetite for risk. This page maps the lender types for a property investor or developer, sets out how to tell a well-run lender from a badly-run one, and shows how to verify authorisation on the FCA register. It is education, not a recommendation: we name no individual lenders and arrange no finance. Where it helps, it points to how the interest you pay is treated for tax.

10 min read

Bridging Loan Rates: What They Cost and What Drives Them

Bridging is quoted as a monthly rate, and the headline figure is only part of the cost. This guide explains the typical rate range for first-charge investment bridging as at July 2026 (roughly 0.55% to 1%+ a month), what moves your rate, the difference between rolled, retained and serviced interest, why the money that reaches your account is less than the loan you draw, and the full fee stack. It ends with a worked total-cost example on a £200,000 eight-month bridge and the tax treatment of the interest. Education only, not a rate quote or a promotion of any credit product.

10 min read

Bridging Loans: The Complete UK Guide for Property Investors and Developers

A plain-English guide to bridging finance for UK property investors, developers and business owners. Covers what a bridging loan is, the regulated versus unregulated line, first and second charge, open and closed terms, gross versus net loan, rolled and retained interest, LTV, the all-important exit, timescales, the risks, and how the interest is treated for tax. Education only: this guide fences off regulated own-home bridging and does not arrange or promote finance.

16 min read

Buy-to-Let Mortgage Lenders: Types, Tiers and Criteria

Buy-to-let lenders fall into three tiers (high-street banks, specialist and challenger lenders, and private or portfolio lenders), and they disagree on almost everything that matters: whether they lend to an SPV, the ICR band they apply, the minimum income they want, which SIC codes they accept, and how they treat portfolio landlords. This is a criteria comparison, not a product recommendation. A decline from one lender usually means the case landed in the wrong tier, not that it was unaffordable.

9 min read

Free consultation

Planning the tax side of a property finance decision?

Every financing choice, from an SPV buy-to-let mortgage to bridging or a development facility, carries a tax question alongside it: interest relief, incorporation, capital allowances, and how the borrowing is structured. Our property tax specialists can help you read the finance and the tax together before you commit.

  • Property tax onlySection 24, CGT and MTD every day
  • Fixed fees, quoted upfrontIn writing, before any work starts
  • Same accountant every timeYou are not passed around a team

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