The Mortgage Works Cuts Limited Company BTL Rates — What Contractor Landlords Need to Know

What The Mortgage Works changed

The Mortgage Works — Nationwide's dedicated buy-to-let lending arm — cut fixed rates by up to 0.22% across its full BTL range from 5 June 2026. The changes span 1-year, 2-year and 5-year fixed products and cover BTL purchase and remortgage, let-to-buy, limited company BTL and HMO products.

On limited company BTL specifically, the five-year fixed purchase and remortgage product at 75% LTV (with free valuation and no product fee) was cut by 18 basis points to 5.49%. The two-year fixed limited company switcher at 75% LTV was cut by 5 basis points to 5.44%, with a £1,495 product fee. These are the headline numbers for contractor landlords operating through a company structure.

TMW is not a niche specialist — it is one of the largest BTL lenders in the UK by volume, sitting within the Nationwide Group. When TMW moves, it reflects where mainstream BTL lending is heading. A cut across the full product range, including limited company products, is a significant market signal.

Why limited company BTL matters to contractors

Contractors who are higher-rate taxpayers — and many contractors are, given the income levels a strong day rate can generate — have a strong tax incentive to hold investment properties through a limited company rather than personally.

For personal landlords, the Section 24 changes removed the ability to deduct mortgage interest as a cost before calculating taxable rental income. Instead, personal landlords receive a 20% tax credit on mortgage interest payments. For a higher-rate taxpayer, this means paying tax at 40% (or 45% at the additional rate) on rental income before receiving back a 20% credit — a meaningful net cost.

A limited company holding the same property can deduct mortgage interest in full as a business expense before calculating corporation tax on profits. With corporation tax currently at 25% for profitable companies, the arithmetic often favours the company structure significantly for contractors who are already higher-rate taxpayers through their contracting income.

The result is that contractors building a property portfolio frequently do so through a limited company — often the same company through which they contract, or a separate special purpose vehicle. TMW's limited company BTL range is directly relevant to this structure.

The contractor director challenge

Here is where the complexity arises. A contractor applying for a limited company BTL mortgage is not simply a business owner buying an investment property. They are a contractor director whose personal income — the income that will service the mortgage — is drawn from contracting work assessed on a day-rate basis, not a conventional salary.

Standard BTL affordability assessments focus on rental income coverage: does the rent cover the mortgage at a stress rate? For many BTL lenders, this assessment is relatively straightforward. But where a lender also looks at personal income — as some do for limited company applications to assess background income and financial stability — a contractor's income structure can create problems.

A contractor director taking a modest salary and retaining profits in the company, or taking a combination of salary and dividends, will not present the clean PAYE income picture that standard affordability checks expect. An underwriter applying a standard employed-income methodology to a contractor's finances may significantly underestimate real earning capacity, or may ask for additional documentation that a non-specialist would not know how to present.

The right approach is a broker who understands both the BTL product range and the contractor income assessment methodology — and can navigate both simultaneously.

What TMW's move signals for the BTL market

TMW cutting rates across the full range — not just a single product tier — is a market-direction signal as much as a repricing event. The BTL market has been under pressure for several years: higher mortgage rates, Section 24 tax changes, and increased regulatory burden have all contributed to a reduction in the landlord population, particularly among smaller accidental landlords.

The landlords who have remained, and who are actively growing portfolios, tend to be professional investors operating through limited companies with appropriate professional advice. TMW's willingness to cut rates across the limited company range reflects its appetite to lend to this borrower type.

For contractors who have been watching the BTL market and considering whether now is the right time to invest or remortgage an existing portfolio, the direction of travel in June 2026 is constructive. Rates are still elevated relative to 2020-21, but the trajectory is downward and multiple large lenders are moving simultaneously. Acting during a period of competitive repricing, with income correctly assessed and the right lender selected, is a better position than acting when rates are rising.

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