## Is a Limited Company Buy to Let Mortgage Better for Tax?
In recent years, many UK landlords have asked: is a limited company buy to let mortgage better for tax? With significant changes to mortgage interest relief and stricter affordability rules, purchasing investment property through a limited company has become an increasingly popular strategy. This type of buy-to-let lending can offer tax efficiencies, particularly for higher-rate taxpayers, and may help landlords grow their portfolios more effectively.
As we move into 2025, the buy-to-let market continues to evolve. Landlords are navigating rising interest rates, tighter lending criteria, and new regulations. Using a limited company structure can provide more flexibility and potential tax advantages, but it’s not suitable for everyone. This guide explores the pros, cons, and practicalities of limited company buy-to-let mortgages, helping you decide if it’s the right path for your property investment strategy.
## Quick Facts: Limited Company Buy to Let Mortgages in 2025
– **Interest rates (2025):** Typically 5.5% to 7.5%, higher than personal BTL mortgage rates
– **Minimum deposit:** 25% (some lenders may require 30%+ for certain properties)
– **Rental coverage ratio:** Usually 125% to 145% at a stress-tested rate of 5.5% to 8.5%
– **Maximum loan-to-value (LTV):** Generally 75%, some lenders offer 80% for strong cases
– **Arrangement fees:** 1% to 2% of the loan amount, sometimes higher for specialist lenders
– **Application timeline:** 6 to 12 weeks from application to completion, depending on complexity
Limited company buy-to-let mortgages are designed for landlords purchasing or remortgaging investment properties through a special purpose vehicle (SPV). These mortgages come with distinct lending criteria, tax implications, and legal requirements that differ from personal name applications.
## Mortgage Overview
A limited company buy-to-let mortgage allows landlords to purchase or refinance rental properties through a company structure, typically a Special Purpose Vehicle (SPV) registered with Companies House. The SPV is usually set up under SIC code 68209 (letting and operating of own or leased real estate).
This structure is often used by portfolio landlords or higher-rate taxpayers looking to mitigate tax liabilities. Unlike personal buy-to-let mortgages, where rental income is taxed as individual income, limited company profits are subject to corporation tax—currently 25% for most landlords in 2025.
Key product types include:
– **Fixed-rate mortgages:** Popular for budgeting, fixed for 2, 5, or 10 years
– **Variable/tracker mortgages:** Linked to the Bank of England base rate, offering flexibility but with rate fluctuation risk
Limited company mortgages are generally more expensive than personal BTL products in terms of interest rates and fees. However, the potential tax savings and ability to retain profits within the company for reinvestment are major draws.
Lenders assess the company’s affordability based on projected rental income, not the director’s personal income (though personal guarantees are usually required). These mortgages are suitable for:
– Experienced or portfolio landlords
– Higher-rate taxpayers
– Investors planning to grow a property portfolio
– Landlords seeking long-term tax efficiency
(Explore our guide to limited company buy-to-let)
## Eligibility & Criteria
Lenders have specific eligibility criteria for limited company buy-to-let mortgages. While requirements vary, most lenders follow similar frameworks:
– **Income requirements:** Personal income is less relevant, but lenders may require directors to earn £25,000+ annually. Some lenders have no minimum income requirement.
– **Rental coverage and stress testing:** Rental income must cover the mortgage by 125% to 145%, stress-tested at 5.5% to 8.5% depending on the product and term.
– **Property type restrictions:** Standard houses and flats are widely accepted. HMOs, multi-unit blocks, and new builds may require specialist lenders.
– **Credit score expectations:** Clean credit preferred. Minor issues may be accepted by specialist lenders. Directors’ personal credit history is assessed.
– **Age limits:** Typically 21 to 85 at the end of the mortgage term. Some lenders have no upper age limit for company directors.
– **Employment status:** Self-employed and employed applicants accepted. Retired directors may be considered based on investment income.
– **Portfolio landlord criteria:** If you own four or more mortgaged properties, lenders will assess your entire portfolio’s performance and rental coverage.
– **Limited company structure:** Must be an SPV with appropriate SIC codes. Trading companies are accepted by fewer lenders and may face higher scrutiny.
– **Right-to-rent compliance:** Landlords must comply with UK right-to-rent checks and local licensing schemes (especially for HMOs or selective licensing areas).
(See our guide to portfolio landlord mortgages for more on multi-property lending)
## Costs & Affordability
Limited company buy-to-let mortgages come with several costs:
– **Arrangement fees:** Typically 1% to 2% of the loan. Some lenders offer flat fees (£995–£2,495).
– **Valuation fees:** Based on property value, often £300 to £1,000+. Some products include free valuations.
– **Legal fees:** Higher than personal BTL due to company legal structure. Expect £1,500–£3,000.
– **Broker fees:** Many brokers charge £495–£1,495 for limited company applications due to complexity.
### Interest Rates
– **Fixed rates:** 5.5% to 6.5% for 2- or 5-year fixes (2025 average)
– **Variable rates:** 6% to 7.5%, depending on lender and risk profile
### Rental Income & Affordability
Lenders assess affordability based on rental income, not personal income. The rental coverage ratio (ICR) must meet lender thresholds, often 125%–145% at a stress-tested rate. For example, a £1,000 monthly rent must cover a notional mortgage payment of £800–£1,150.
### Tax Implications
– **Section 24:** Since 2020, individual landlords can no longer deduct full mortgage interest from rental income. Instead, they receive a 20% tax credit. Limited companies are not affected by Section 24.
– **Corporation tax:** Profits are taxed at 25% (2025). Dividends are taxed separately when withdrawn.
– **Retained profits:** Companies can reinvest profits into new properties, aiding portfolio growth.
(Explore our BTL remortgage guide for switching options)
## Application Process
Applying for a limited company buy-to-let mortgage involves several steps:
1. **Research & Advice:** Speak with a mortgage broker experienced in limited company lending
2. **Set up SPV:** Register a limited company with correct SIC codes (e.g. 68209)
3. **Prepare documents:**
– Director ID and proof of address
– Company registration documents
– Business bank statements (if applicable)
– Property details and rental projections
– Personal income and credit reports
4. **Submit application:** Broker submits to lender with supporting documents
5. **Valuation & Survey:** Lender instructs property valuation
6. **Underwriting & Offer:** Lender assesses the case, issues a mortgage offer
7. **Legal Work:** Solicitors handle conveyancing, company checks, and personal guarantees
8. **Completion:** Mortgage funds released, property purchase or remortgage completed
### Timeline
– **Standard cases:** 6 to 8 weeks
– **Complex cases (e.g. HMOs, portfolios):** 10 to 12+ weeks
### Broker vs Direct
Most limited company BTL lenders operate via intermediaries. A broker can:
– Access specialist lenders
– Navigate complex criteria
– Improve approval chances
– Save time and stress
### Common Rejection Reasons
– Inadequate rental income
– Incorrect company structure
– Poor credit history
– Non-compliant property (e.g. unlicensed HMO)
## Benefits, Risks & Alternatives
### Benefits
– **Tax efficiency:** Avoid Section 24 restrictions
– **Retain profits:** Reinvest within company
– **Inheritance planning:** Shares can be gifted or transferred
– **Professional image:** Lenders may prefer company structures for larger portfolios
### Risks
– **Higher interest rates and fees**
– **Complex legal and tax setup**
– **Dividend tax on withdrawals**
– **Void periods and rising interest rates**
– **Regulatory changes impacting company landlords**
### Alternatives
– **Bridging loans:** Short-term finance for refurbishments or auction purchases
– **Commercial mortgages:** For mixed-use or semi-commercial properties
– **Development finance:** For ground-up or major renovation projects
– **Personal name BTL:** May be cheaper for basic, low-rate taxpayers
(Compare limited company vs personal name buy-to-let)
## FAQs
### What deposit do I need for is a limited company buy to let mortgage better for tax?
Most lenders require a minimum 25% deposit, though some may ask for 30–35% depending on the property type, location, and rental income. Higher deposits can unlock better interest rates and improve affordability calculations. For HMOs or new builds, expect stricter requirements.
### Can I get is a limited company buy to let mortgage better for tax through a limited company?
Yes. You’ll need to set up a Special Purpose Vehicle (SPV) limited company with the correct SIC codes (e.g. 68209). Most lenders require personal guarantees from directors. The company must be registered in the UK and meet lender criteria regarding structure and ownership.
### What rental coverage do lenders require?
Lenders typically require rental income to cover the mortgage by 125% to 145%, stress-tested at 5.5% to 8.5%. This is known as the Interest Coverage Ratio (ICR). For example