Remortgaging a Limited Company Buy-to-Let
Updated 13 April 2026
If you hold buy-to-let property through a limited company and your current mortgage deal is ending, you have two main options: take a product transfer with your existing lender, or remortgage to a new provider. The right choice depends on your current rate, the equity in the property, your portfolio position and whether you want to raise additional funds. Mortgage One can compare both routes across the whole market and identify which lenders offer the most competitive terms for your SPV structure.
Your home may be repossessed if you do not keep up repayments on a mortgage or any other debt secured on it.
For a free initial consultation about remortgaging your limited company buy-to-let, call 01202 155992 or contact Mortgage One.
Product Transfer or Full Remortgage
When your current fixed rate or deal period ends, your mortgage will typically revert to the lender’s standard variable rate (SVR), which is usually significantly higher than the rate you were paying. At that point, you can either accept a new deal from your existing lender (a product transfer) or move to a different lender entirely (a full remortgage).
Product transfers
are often quicker and simpler because the lender already holds the mortgage and knows the property. There is usually no new valuation, no legal work and no arrangement fee to pay. However, the range of products available on a transfer is limited to what that single lender offers. If their pricing is not competitive or their criteria have tightened since you first borrowed, you may be overpaying.
A full remortgage
involves applying to a new lender, which means a fresh valuation, new legal work and a full underwriting assessment. This takes longer but opens access to the entire market, including lenders that may offer better rates, more flexible criteria or higher loan-to-value options. If you want to raise capital at the same time, a full remortgage is usually required.
A broker can assess whether the savings from switching lender outweigh the costs of remortgaging, or whether a product transfer is the more practical route. If you are remortgaging a personally held buy-to-let rather than a limited company property, the remortgaging guide on the Mortgage One website covers the general process.
How Lenders Assess a Limited Company Remortgage
Lenders assess limited company remortgage applications in much the same way as new purchase cases. The key criteria are the rental income, the company structure, the directors’ personal profiles and the property itself.
Rental income and interest coverage ratio (ICR).
The rental income must cover the mortgage payment by a specified margin, stress-tested at a rate higher than the actual pay rate. Most lenders require coverage of 125% to 145%, with the stress rate commonly set between 5.5% and 6.5%. Some lenders apply different ICR requirements depending on whether the borrower is a basic-rate or higher-rate taxpayer, and whether the property is held personally or through a company. For limited company structures, the ICR threshold is often lower than for personal borrowers because corporation tax rates are lower than personal income tax rates.
Loan-to-value (LTV).
Most lenders cap the LTV for limited company buy-to-let remortgages at 75%, although some will lend up to 80% on standard properties. If you are raising capital, the maximum LTV may be lower. A current valuation will be required unless you are taking a product transfer with your existing lender.
Company structure and director profile.
Lenders expect the company to be a special purpose vehicle (SPV) with SIC codes reflecting property letting activity. Directors must provide personal guarantees, and lenders will review their personal credit history and income. The limited company buy-to-let mortgages page on the Mortgage One website explains SPV requirements and lender expectations in more detail.
To find out what remortgage options are available for your limited company portfolio, call 01202 155992 or contact Mortgage One.
Capital Raising Through a Remortgage
One of the most common reasons landlords remortgage a limited company buy-to-let is to release equity from an existing property. This capital can be used to fund further purchases, carry out refurbishments, repay intercompany loans or consolidate borrowing across the portfolio.
When raising capital, lenders will assess the purpose of the funds and may apply stricter criteria than for a straightforward rate switch. The maximum LTV for capital raising is typically 75% or lower, and some lenders cap the amount that can be released in a single transaction. If the funds are being used to purchase another property, the lender may want to see evidence of the intended acquisition.
Tax treatment varies according to individual circumstances and is subject to change. If you are extracting funds from the company or restructuring intercompany loans, you should coordinate with your accountant to ensure the transaction is structured appropriately. Mortgage One can advise on the mortgage side, but ownership and tax structuring decisions should be discussed with a qualified accountant or tax adviser.
Portfolio Landlord Considerations
If you own four or more mortgaged buy-to-let properties, you are classified as a portfolio landlord under Prudential Regulation Authority rules. This applies regardless of whether the properties are held personally, through a company, or across a mix of both.
Portfolio landlord remortgage applications require additional documentation and a more detailed assessment. Lenders will typically ask for a full schedule of all properties, including current values, rental income, outstanding mortgage balances, remaining terms and lender names. They will assess aggregate affordability across the entire portfolio, not just the individual property being remortgaged. The portfolio landlord mortgages page on the Mortgage One website explains how these rules work in practice.
Some lenders set limits on the total number of properties or total borrowing they will accept from a single portfolio landlord. If you are approaching these limits with one lender, it may be necessary to spread your borrowing across multiple providers. A broker with whole-of-market access can identify which lenders have the most appetite for your portfolio profile.
What You Need to Prepare
Preparing the right documentation before you apply can speed up the process and reduce the risk of delays. For a limited company buy-to-let remortgage, you should have the following ready.
• Current mortgage statement showing the outstanding balance, remaining term and any early repayment charges.
• Current tenancy agreement (AST) confirming the rental income and tenancy terms.
• Company incorporation documents, including certificate of incorporation, memorandum and articles of association, and confirmation of SIC codes.
• Details of all directors and shareholders, including proof of identity and address.
• Portfolio schedule listing all properties, values, rental income and outstanding mortgages (required for portfolio landlords).
• Personal credit report for each director. Downloading your credit report before applying allows your broker to identify any issues early and select lenders accordingly.
• Latest company accounts, if filed. New SPVs without filed accounts are accepted by many lenders.
If you are an expat or non-UK resident director of a limited company holding UK buy-to-let property, additional criteria may apply. The expat limited company buy-to-let page on the Mortgage One website covers how these cases are assessed.
To start your limited company buy-to-let remortgage, call 01202 155992 or contact Mortgage One. The initial consultation is free and without obligation.
The information provided in this article is for general guidance only and does not constitute personal or regulated financial advice. If you’d like to understand what these moves could mean for you, speak to Mortgage One. We can explain your options and timings based on your specific circumstances.
Some Buy to Let mortgages are not regulated by the Financial Conduct Authority.
FAQs
1. What is the difference between a product transfer and a remortgage?
A product transfer moves you to a new deal with your existing lender, usually without a valuation or legal work. A remortgage moves you to a different lender entirely, which requires a fresh application, valuation and conveyancing but gives access to the full market.
2. Can I raise capital when remortgaging a limited company buy-to-let?
Yes, subject to the lender’s loan-to-value limits and affordability criteria. Most lenders cap capital raising at 75% LTV. The purpose of the funds may also be assessed.
3. What interest coverage ratio do lenders require?
Most lenders require rental income to cover 125% to 145% of the mortgage payment at a stressed interest rate. The exact requirement varies by lender, taxpayer status and whether the property is held through a company or personally.
4. Do I need to provide a personal guarantee when remortgaging through a company?
Yes, in most cases. Lenders require personal guarantees from the SPV directors, meaning they are personally liable if the company defaults on the mortgage.
5. Will I face early repayment charges if I remortgage before my deal ends?
Possibly. Most fixed-rate products carry early repayment charges during the initial deal period. Your current mortgage statement will confirm whether any charges apply and how much they would be.
6. How long does a limited company buy-to-let remortgage take?
A product transfer can complete in a matter of days. A full remortgage to a new lender typically takes four to eight weeks, depending on the complexity of the case, the lender’s processing times and how quickly the required documentation is provided.
7. Can I remortgage if my property does not meet current EPC requirements?
Most lenders accept properties with any EPC rating, although some offer preferential rates for properties rated A to C. If your property has a low EPC rating, this should not prevent you from remortgaging, but the available product range may be slightly narrower.