If you own a rental property in Southport – whether that’s a terraced let off Roe Lane in PR9, a converted flat near Lord Street, or a family home in the PR8 postcode stretching towards Birkdale and Ainsdale – there’s a question that’s almost certainly come up in conversation with your accountant, your fellow landlords, or late at night when you’re running the numbers. This October, review current comparable evidence and your property’s condition, including heating and maintenance needs before winter.
Should I be holding my properties in a limited company?
Personal and limited-company ownership can produce different tax and financing outcomes. For Southport landlords reviewing their arrangements in October 2026, the right answer depends on borrowing, other income, costs and long-term plans; incorporation does not automatically save money.
This is that straight answer.
What Section 24 actually costs a Southport landlord
For individual residential landlords, finance costs generally receive a basic-rate tax reduction rather than being deducted from taxable rental profit. The reduction is usually calculated at 20%, subject to limits based on finance costs, property profits and adjusted total income; unused eligible amounts may be carried forward.
Here’s what that looks like in real terms for a Southport landlord.
An illustrative PR8 and PR9 landlord calculation
Use an illustrative rent of £850 a month to see how the rules work. This is an example input; rather than a verified average for PR8 or PR9, substitute the rent and costs relevant to your own property.
Assume £10,200 annual rent, £5,000 mortgage interest, no other costs or allowances, all rental income taxed at 40%, and eligibility for the full basic-rate finance cost reduction.
Under the old rules, you’d have paid income tax on £5,200 (income minus interest). As a 40% taxpayer, that’s £2,080 in tax.
Under Section 24, you pay income tax on the full £10,200, then claim a 20% credit on the £5,000 interest. Your tax bill becomes £4,080 minus £1,000 credit – leaving you paying £3,080. That’s £1,000 more per property, per year, simply because of the structure you’re using.
The example shows a £1,000 difference in annual tax compared with the former deduction rules. That is tax due under the current system, rather than an overpayment. Results depend on other income, allowable costs and the available tax reduction.
How a limited company SPV changes the maths
An SPV is a limited company used for a defined purpose, such as owning and letting investment property. Lenders often restrict its activities, but residential letting remains a business, and the company’s tax treatment needs to be assessed separately.
Inside a limited company, the rules are different.
Corporation tax vs personal income tax
Eligible companies with profits of £50,000 or less generally pay corporation tax at 19%; profits above £250,000 generally attract 25%, with marginal relief between those limits. Thresholds can be reduced for associated companies or short accounting periods, and some investment companies do not qualify for the small profits rate.
On an illustrative £5,200 taxable company profit, Corporation Tax would be £988 at 19%, or £1,300 at 25% if the main rate applied. Compare the company’s overall profits and eligibility, not one property’s income alone. These figures exclude any further tax on extracting money, mortgage differences and accountancy costs.
For landlords with larger Southport portfolios – perhaps combining properties in Churchtown, Birkdale, and Ainsdale – the cumulative tax efficiency can be substantial over time.
Getting the SPV structure right from the start
Not all limited companies are equal in the eyes of buy-to-let mortgage lenders. The details matter.
Use an accurate SIC code reflecting the company’s activities; 68209 describes other letting and operating of own or leased real estate. Check your proposed lender’s accepted activities and codes before incorporation rather than assuming one code is mandatory for every SPV.
Share ownership and dividend arrangements need legal and tax advice, particularly for family members or different share classes. Alphabet shares do not automatically reduce tax, and distributions must follow company law and the applicable tax rules.
This is not something to set up quickly on a free company formation website. Get it done properly, with a solicitor and an accountant who understand property investment structures.
When a limited company does NOT make sense
Northwood Southport is here to give you honest advice – not to push you towards a decision that doesn’t serve you. And the truth is, the corporate route isn’t right for everyone.
You’re a basic-rate taxpayer.
If your total income (including rental income) keeps you within the basic-rate tax band, Section 24 is far less damaging. The 20% tax credit largely offsets the restriction. The additional costs and complexity of running a limited company – accountancy fees, filing requirements, potential double taxation on extraction – may outweigh any benefit.
You’re planning to sell in the short term.
Moving a personally owned property into a company is generally a disposal for tax purposes and can trigger CGT, SDLT and refinancing costs, often using market value. Any relief depends on the facts and statutory conditions; obtain advice before transferring ownership.
Your portfolio is low-leverage or unencumbered.
Basic-rate taxpayers should also compare personal and company ownership carefully. A 19% company rate is not automatically cheaper than 20% income tax once extraction taxes, relief limits and additional costs are included.
What’s changed with SDLT – and what still remains
If you’re acquiring new properties into a corporate structure, it’s important to understand the current Stamp Duty Land Tax landscape.
Multiple Dwellings Relief was abolished for transactions completing from 1 June 2024, subject to limited transitional rules. Do not budget for it on an ordinary new acquisition in October 2026.
Purchasing six or more dwellings in a single transaction is generally treated under non-residential SDLT rates. This is a separate rule from the abolished Multiple Dwellings Relief; have your conveyancer assess the actual transaction.
Northwood Southport’s take: profit, time, security
Northwood becomes your tenant under its Guaranteed Rent agreement, paying an agreed monthly amount from the contract start date, including covered voids and sub-tenant non-payment. The offer is generally below market rent. Review eligibility, exclusions, retained costs and owner responsibilities with the branch before signing.
But we also know that getting paid consistently is only part of the picture. Keeping more of what you earn is just as important. That’s why we talk to our landlords about structure, strategy, and the long game – not just the day-to-day management.
Whether you’re a seasoned portfolio investor reassessing your tax position or an ambitious younger landlord in Southport building your first portfolio from scratch, the right structure from the start can make an enormous difference to your long-term wealth.
Ready to talk about your Southport portfolio?
If you’re a landlord in PR8 or PR9 and you’re not sure whether your current structure is costing you money, the team at Northwood Southport would love to have that conversation with you.
We’re not middle managers following a script. We’re owners, doers, and decision-makers – rooted in Southport, connected nationally, and genuinely invested in your success.
Book a free portfolio valuation with Northwood Southport today and find out exactly what your properties are worth – and what they could be earning – in 2026. Whether you’re exploring Guaranteed Rent, considering the Northwood Investors Club, or simply want a second opinion on your tax structure before speaking to your accountant, we’re here.
Freedom starts with the right advice. And the right advice starts with Northwood.
Get in touch with the Northwood Southport branch directly to speak with a local landlord specialist – no obligation, no jargon, just straight answers built around your portfolio.
