Limited company buy to let mortgage articles of association 10 year fixed products are becoming an increasingly popular choice for UK landlords in 2025. These specialist buy-to-let lending options are designed for investors purchasing or refinancing rental properties through a limited company structure. The “articles of association” refer to the legal document that governs the company’s operations, which lenders often review as part of the mortgage application process. A 10-year fixed rate offers long-term interest rate security, making it attractive for landlords seeking predictable costs and stability in a volatile market.
With rising interest rates and ongoing changes to landlord taxation, many investors are turning to limited company structures to optimise their property portfolios. These mortgages are particularly suitable for portfolio landlords and those affected by Section 24 mortgage interest relief restrictions. Compared to personal buy-to-let mortgages, limited company options offer potential tax efficiencies, although they come with more complex criteria and regulatory scrutiny. Understanding how these mortgages work—and how to structure your company correctly—is essential for successful property investment in 2025.
Quick Facts
– Interest rates: 4.5% to 6.5% (2025 average for 10-year fixed)
– Minimum deposit: 25% (some lenders require 30%)
– Rental coverage: 125% to 145% at stress-tested rates
– Maximum loan-to-value (LTV): 75%
– Arrangement fees: Typically 1% to 2% of the loan amount
– Application timeline: 4 to 8 weeks from submission to completion
Limited company buy-to-let mortgages with 10-year fixed rates offer long-term cost certainty, but require careful planning. Lenders assess both the company’s structure and the property’s rental income, making strong documentation and financials essential. Articles of association must allow property letting activity, and lenders will scrutinise them to ensure compliance.
How This Mortgage Works
A limited company buy to let mortgage articles of association 10 year fixed is a long-term fixed-rate mortgage available to landlords purchasing or refinancing property through a limited company. The 10-year fixed rate provides interest rate stability for a decade, helping landlords manage cash flow and plan for the long term. These mortgages are available in both interest-only and capital repayment formats, though most landlords opt for interest-only to maximise rental income efficiency.
The limited company must be a Special Purpose Vehicle (SPV), typically registered under SIC code 68209 (letting and operating of own or leased real estate). Lenders will review the company’s articles of association to ensure they permit property letting and borrowing. If the articles are not compliant, they may need to be amended before proceeding.
This mortgage type suits experienced landlords, portfolio investors, and those looking to mitigate tax liabilities via a corporate structure. It is less suited to first-time landlords unless they have strong financial backing and a clear investment strategy. In 2025, lender appetite for limited company BTL remains strong, especially for well-structured applications with solid rental income and low LTVs. Compared to residential mortgages, these products are underwritten based on rental income rather than personal affordability, although directors’ financial backgrounds are still assessed.
Eligibility and Criteria
To qualify for a limited company buy to let mortgage articles of association 10 year fixed, landlords must meet specific eligibility and underwriting criteria. These include both company-level and individual director requirements.
Income Requirements:
While personal income is not the primary affordability measure, lenders typically require directors to have a minimum income of £25,000–£30,000. This reassures lenders of the borrower’s financial stability, especially in the event of rental voids or unexpected costs.
Rental Coverage and Stress Testing:
The property’s rental income must cover the mortgage interest by at least 125% to 145%, depending on the lender and whether the borrower is a basic or higher-rate taxpayer. Stress testing is typically applied at a notional rate of 5.5% to 6.5%, even if the actual fixed rate is lower.
Property Type Restrictions:
Lenders prefer standard buy-to-let properties such as single-family homes and flats. Houses in multiple occupation (HMOs), multi-unit freehold blocks (MUFBs), and new-build flats may be accepted but often come with stricter criteria or higher rates.
Credit Score Expectations:
A good credit history is essential. While there is no fixed minimum score, most lenders expect no recent defaults, CCJs, or bankruptcies. Directors with adverse credit may face limited options or higher rates.
Age and Employment:
Most lenders impose a minimum age of 21 and a maximum age at the end of the mortgage term (usually 85). Employment status is less critical than rental income, but self-employed directors may need to provide additional documentation.
Portfolio Landlord Criteria:
Landlords with four or more mortgaged properties are considered portfolio landlords. They must provide a full portfolio schedule, business plan, and evidence of rental income across all properties. Lenders assess overall leverage and exposure.
Limited Company vs Personal Name:
Limited company mortgages are assessed differently from personal applications. The company must be an SPV, and directors must provide personal guarantees. Articles of association must explicitly allow property letting and borrowing.
Regulatory Compliance:
Landlords must comply with right-to-rent checks, local licensing schemes, and EPC regulations. Non-compliance can result in mortgage rejection or legal penalties.
Costs and Affordability
Securing a limited company buy to let mortgage articles of association 10 year fixed involves several costs beyond the interest rate.
Fees:
– Arrangement fees: 1% to 2% of the loan
– Valuation fees: £300 to £1,000 depending on property value
– Legal fees: £1,000 to £2,000 (more for complex cases)
– Broker fees: £500 to £1,500 depending on service level
Interest Rate Comparison:
10-year fixed rates offer long-term stability but may be slightly higher than 2- or 5-year fixed products. However, they protect against future interest rate rises and reduce remortgage costs.
Rental Income Calculations:
Affordability is based on projected rental income. Lenders apply a stress test to ensure the rent covers mortgage payments even if rates rise. This protects both the lender and borrower from future affordability issues.
Tax Implications:
Limited company structures are not affected by Section 24, which restricts mortgage interest relief for individual landlords. Instead, interest is treated as a business expense, potentially reducing Corporation Tax liabilities. However, profits extracted from the company may be subject to dividend tax.
Insurance:
Landlords must have buildings insurance and often landlord insurance covering rent loss, liability, and legal expenses.
The Application Process
Applying for a limited company buy to let mortgage articles of association 10 year fixed involves several key steps:
1. Research and Preparation:
Identify suitable lenders and mortgage products. Ensure your limited company is properly structured as an SPV with compliant articles of association.
2. Documentation:
Prepare the following:
– Company incorporation documents and articles of association
– Director ID and proof of address
– Business bank statements
– Property details and tenancy agreements
– Projected rental income or letting agent letter
– Personal income evidence (payslips, SA302s)
3. Mortgage Decision in Principle:
A broker or lender will assess your eligibility and issue a DIP, confirming the loan amount subject to underwriting.
4. Property Valuation:
A surveyor will assess the property’s value and rental potential. This determines the maximum loan amount.
5. Underwriting and Legal Process:
Lenders review all documentation, including the company structure and property details. Solicitors handle conveyancing and legal checks.
6. Completion:
Once approved, funds are released, and the mortgage completes. This typically takes 4 to 8 weeks.
Working with a broker can streamline the process, especially for complex cases. Common rejection reasons include insufficient rental income, non-compliant articles, or adverse credit. Ensuring accuracy and compliance is key to approval.
Benefits, Risks and Alternatives
Benefits:
– Long-term interest rate certainty for 10 years
– Tax efficiency via limited company structure
– No impact from Section 24 mortgage interest relief changes
– Suitable for portfolio landlords and high-value properties
Risks:
– Early repayment charges (ERCs) can be high on 10-year fixed deals
– Void periods or rent arrears can affect affordability
– Regulatory changes may impact future profitability
– Limited company setup and maintenance costs
Alternatives:
– 2- or 5-year fixed rate BTL mortgages
– Bridging loans for short-term finance
– Commercial mortgages for mixed-use or semi-commercial properties
– Development finance for refurbishment or conversions
Remortgage vs Product Transfer:
At the end of the fixed term, landlords can remortgage to a new lender or switch products with the current lender. Remortgaging may offer better rates but involves new underwriting and fees. Product transfers are simpler but may limit options.
Frequently Asked Questions
What deposit do I need for a buy-to-let mortgage?
Most lenders require a minimum deposit of 25% for a limited company buy-to-let mortgage. However, some may ask for 30% depending on the property type, rental yield, and your credit profile. Higher deposits can unlock better interest rates and improve affordability assessments.
Can I get limited company buy to let mortgage articles of association 10 year fixed through a limited company?
Yes, many lenders offer 10-year fixed buy-to-let mortgages specifically for limited companies. Your company must be an SPV with appropriate SIC codes and articles of association that permit property letting. Directors must provide personal guarantees and meet lender criteria.
What rental coverage do lenders require?
Lenders typically require rental income to cover the mortgage payments by 125% to 145%, stress-tested at a higher notional interest rate. For limited company applications, the stress rate may be slightly lower than for personal applications, improving borrowing capacity.
How does Section 24 tax affect buy-to-let mortgages?
Section 24 restricts individual landlords from deducting mortgage interest from rental income for tax purposes. Limited companies are exempt from this rule, making them more tax-efficient for higher-rate