Borrowing on an existing rental property

Buy-to-let secured loans for landlords

A second charge may let you borrow against a rental property while keeping its existing mortgage. Whether it is suitable depends on the property, both loans, rental income, your borrowing purpose and the full cost. Count Ready can review the options with you before an application.

Quick answer

What is a buy-to-let secured loan?

On this page, it means a second loan secured against a rental property that already has a mortgage. The new lender takes a second legal charge. Your first mortgage normally stays in place, and you remain responsible for both loans.

The first lender has priority over the sale proceeds if the property is sold or repossessed. A second charge is additional debt, not a withdrawal of cash that you already own outright. Missed payments can put the property at risk.

Compare the whole decision

Second charge, further advance or remortgage?

Each route changes a different part of your borrowing. The right comparison starts with your existing mortgage offer, the extra sum needed and the time you expect to keep both loans.

Second charge

Keep the existing first mortgage and take a separate loan secured on the same rental property, if the first lender and new lender allow it. You have two sets of terms and payments to manage.

Further advance

Ask your present lender for additional borrowing. It may have a different rate or end date from your current deal. Availability, purpose and affordability depend on that lender.

Remortgage with extra borrowing

Replace the existing mortgage with a larger first charge. Compare the cost of the new loan on the whole balance, fees and any early repayment charge for leaving your current deal.

A product transfer is not automatically extra borrowing. Your lender may offer a rate switch and a separate borrowing route, or may not. The product-transfer guide explains the deal-review decision.
What a lender will check

Equity is only the starting point

The property's estimated value minus the loans already secured on it is a useful equity figure. It is not the amount a lender will necessarily advance.

QuestionWhy it matters
What is already secured?A lender considers the existing first-charge balance and proposed second loan together against its valuation and loan-to-value policy.
Does the rent support the debt?Rental assessment may test both borrowing commitments using the lender's own assumptions. That calculation is different from your actual monthly payments and landlord cash flow.
Who is borrowing?Individual, company and portfolio cases can have different evidence and lender routes. Credit history, income and other commitments may also matter.
Is the property and purpose acceptable?Tenure, condition, type, tenancy and proposed use of funds can affect eligibility. Some first lenders require consent to a second charge.

Bring the current mortgage details. A low existing rate or early repayment charge can make a second charge worth comparing, but neither makes it automatically cheaper. Lender criteria, including rental stress tests, change; no deposit, coverage, age or combined-LTV figure is universal.

Before adding another loan

Compare cash received, payments and total cost

Upfront and ongoing costs

Ask for the second-charge rate and term, lender and broker fees, valuation and legal costs where applicable, and any early repayment charges. Check whether fees are paid separately or added to the loan; added fees also attract interest.

Two payment obligations

The existing mortgage does not disappear. Compare the combined monthly payments and the total amount payable over the period you expect to hold the loans, not just the headline rate on the smaller second charge.

Landlord cash flow and exit

Allow for voids, repairs, insurance, tax and rate changes. If any loan is interest-only, its capital still has to be repaid. Consider the cost of clearing both charges on a sale or later refinance.

Debt consolidation needs particular care. Moving unsecured debt onto a rental property puts that property at risk and a longer term can raise the total interest paid, even if a monthly payment looks lower. The lender's permitted purpose and the regulatory treatment of the case must be checked.

A practical first review

How to prepare a secured-loan enquiry

Explain the purpose

Tell us the extra sum, what it is for, your deadline and whether you are borrowing personally or through a company.

Show the existing position

Share an estimated value, current balance, lender, rate/deal end, early repayment charge and any other charge on the property.

Check the rental case

Give the rent, tenancy, property type and any licence, title, works, credit or portfolio detail that might affect the route.

Compare and decide

Count Ready can explain which borrowing routes it can assess or arrange, the evidence and fees involved, and the next step before you apply.

Keep the first enquiry proportionate. Do not send bank statements, identity documents or passwords through an open message form. Agree a secure way to provide documents if the case progresses.
Google reviews

Live reviews

Read clients' original feedback before choosing how to enquire.

Google displayed 5.0 from 8 reviews when checked on 3 October 2026. These are Count Ready reviews across its services, not secured-loan outcomes. Check the live profile for the current rating.

See how clients describe the advice

Adding another loan to a rental property calls for a clear explanation of costs and risks. The original reviews can help you judge how clients describe their experience of Count Ready's communication and service.

Follow the link to read that feedback in context.

Discuss your rental-property borrowing

Ask Count Ready to review your options

Tell us the property value, current mortgage balance and deal end, extra amount and purpose, monthly rent, borrower structure and deadline. An estimate is enough to start; we can identify what needs confirming.

Count Ready fees: The initial evaluation has no Count Ready fee. Our Terms of Business list a £199 processing-stage administration fee and an offer-stage fee of £595 for standard applications (£999 for international applications). More specialist work can have a different fee, which will be confirmed in writing before an application. Count Ready may also receive lender commission.

Questions landlords ask

Buy-to-let secured loan FAQs

Is a buy-to-let secured loan the same as a second charge?

In this guide, yes: it means a separate loan secured behind an existing mortgage on a rental property. “Secured loan” is broader language, so check the proposed loan's charge, borrower, purpose and terms rather than relying on the label.

Can I keep my existing buy-to-let mortgage?

Often that is the point of a second charge: the first mortgage remains and you take on a separate loan. The first lender's consent or mortgage terms, the second lender's criteria and the cost of both commitments still need checking.

Is my available equity the amount I can borrow?

No. The estimated value less existing secured debt is only a starting figure. A lender may assess both loans against its valuation, rental income, your commitments, credit, property and loan purpose. Meeting one calculation does not guarantee approval or a profitable investment.

How should I compare a second charge with remortgaging?

Compare the total cost over the period you expect to keep the borrowing: both interest rates, payments, fees, term, any early repayment charges and what happens when a deal ends. Also ask whether your current lender offers a further advance. A lower initial payment does not always mean a lower total cost.

Can I use the money for another property or improvements?

Possibly, but the proposed use must fit the lender's policy and the applicable advice and regulatory route. Explain the purpose before seeking a quote. Decisions about tax treatment, company ownership or legal structure need an accountant, tax adviser or solicitor where appropriate.

Can a limited company take a second charge on a rental property?

Some lenders consider company borrowing, but availability depends on the first charge, company, property, guarantors, purpose and lender criteria. It is not the same assessment as an individual's buy-to-let loan, and Count Ready should confirm whether it can advise or arrange the particular route.

Are all buy-to-let second charges regulated in the same way?

No. Business buy-to-let, consumer buy-to-let and other mortgage arrangements can have different regulatory treatment and protections. The facts of the borrower and transaction matter; ask the adviser to explain the status and their permission for your case. Do not assume that every buy-to-let second charge has the same FCA or FSCS protection.

What does Count Ready charge for this review?

The initial evaluation has no Count Ready fee. The published Terms of Business list a £199 processing-stage administration fee and an offer-stage fee of £595 for standard applications (£999 for international applications). A specialist case may have different fees; Count Ready will confirm the applicable fee in writing before an application and may also receive lender commission.

Sources and limits of this guide

  • MoneyHelper: second charge mortgages explains the general charge order, repayment risk and cost comparison. Its consumer-home examples do not determine the treatment of a landlord's case.
  • FCA Handbook: buy-to-let perimeter distinguishes consumer buy-to-let from business and other mortgage arrangements.
  • MoneyHelper: further advances explains the alternative of asking an existing lender for more borrowing. Availability and the treatment of a rental-property loan depend on the actual lender and case.

This page is general UK information, not a loan offer, lender decision, tax or legal advice. Lender terms and permissions must be checked for the actual case. The rental property may be repossessed if repayments on borrowing secured against it are not maintained.

Page updated: 3 October 2026.