Buy-to-Let Mortgages in Dorset*
From your first rental property to a portfolio — personal or limited company, HMO or holiday let, we search the market to find lenders whose criteria fit your plans.
*We are based in Dorset and advise landlords here and across the whole of the UK. Where this page refers to Dorset, the information applies equally to buy-to-let purchases elsewhere in the UK unless stated otherwise.
Buy-to-let lenders typically require a deposit of at least 25% and expect the rent to cover around 125–145% of the mortgage interest at a stressed rate, although criteria vary between lenders. Within those rules there is wide variation — in rates, fees, rental calculations and appetite for property types — which is where a whole-of-market broker can help. NexMoney arranges buy-to-let mortgages across Dorset and the wider UK for first-time and portfolio landlords, in personal names and through limited companies.
How lenders decide what you can borrow
Unlike a residential mortgage, buy-to-let borrowing hinges on the rental cover ratio: the expected monthly rent measured against the mortgage interest at a "stress" rate above the actual pay rate. Basic-rate taxpayers usually need around 125% cover; higher-rate taxpayers around 145%. These figures are typical rather than universal and vary by lender and product. Where the rent falls short, some lenders allow top-slicing — using your personal income to bridge the gap. Knowing which lender's calculation best fits your figures can make a material difference to what is available to you.
Personal name or limited company?
Since mortgage interest relief was restricted for individual landlords, most new portfolio purchases happen through a special purpose vehicle (SPV) limited company, where interest remains fully deductible against corporation tax and rental-cover tests are usually the gentler 125% tier. The trade-offs: slightly higher rates, personal guarantees, and company running costs. We arrange both and work alongside your accountant — the right answer depends on your tax position and long-term plans. (NexMoney does not provide taxation advice; you should take advice from a suitably qualified tax adviser or accountant.)
HMOs, holiday lets and the Dorset market
Two property types we are often asked about in Dorset are HMOs and holiday lets. Yields and demand vary by property and location, and past performance is not a guide to future returns. HMOs — common around Bournemouth's university and hospital — command higher yields but need specialist lenders, licensing, and room-by-room valuations. Holiday lets across Poole, Purbeck, Weymouth and the Jurassic Coast are financed on projected seasonal income rather than a standard AST rent, again by a specialist lender panel. We place both regularly, including limited-company holiday lets, and we know which local licensing quirks lenders will ask about.
Refinancing and growing a portfolio
Buy-to-let remortgaging follows the same six-month-window logic as residential — and it's often the moment to release equity for the next purchase. For portfolio landlords (four or more mortgaged properties), lenders assess the whole portfolio's health, so presentation matters; we prepare the business case lenders want to see. If speed is critical — auctions, chain breaks, refurb-then-refinance — we can also refer you for bridging finance with a planned exit onto a term mortgage. Bridging and specialist finance are arranged by Introduction only.
Risk warnings
Your property may be repossessed if you do not keep up repayments on your mortgage.
Not all Buy to Let Mortgages are regulated by The Financial Conduct Authority.
You may have to pay an early repayment charge to your existing lender if you remortgage.
Your home may be repossessed if you do not keep up repayments on a mortgage or any other debt secured on it.
Not all forms of Property Development Finance are regulated by the Financial Conduct Authority.
Think carefully before securing other debts against your home. The overall cost of repayment of other debts might be more when added to your mortgage. Your home might be repossessed if you do not keep up repayments on your mortgage.
Or check your numbers with our rental yield calculator.
Your questions, answered
What deposit do I need for a buy-to-let mortgage?
Usually at least 25%, though some lenders accept 20%, and a larger deposit may give access to a wider range of products. Borrowing is also limited by the rental income calculation, not just your deposit. Criteria vary by lender.
How much can I borrow on a buy-to-let?
Most lenders want the rent to cover around 125–145% of the mortgage interest at a stressed rate, although this varies by lender and product. Some allow top-slicing with personal income where the rent falls short.
Should I buy through a limited company?
An SPV structure can change how mortgage interest is treated for tax and often attracts a lower rental cover requirement, but rates may be higher and there are company running costs. This is a tax decision as much as a mortgage one. NexMoney does not provide taxation advice — please take advice from a suitably qualified tax adviser or accountant alongside our mortgage advice.
Can I get a mortgage for an HMO or holiday let?
Mortgages for HMOs and holiday lets are available via specialist lenders, subject to criteria. HMOs are typically assessed on room-by-room income; holiday lets on projected seasonal income. Licensing and planning requirements may also apply.
Is buy-to-let regulated by the FCA?
Most buy-to-let mortgages are not regulated by the Financial Conduct Authority — the main exception is consumer buy-to-let (e.g. letting a home you used to live in). Our care and process are the same either way.