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Let to Buy mortgages – what you need to know

This guide was last updated 31 January 2024

For many buyers, finding their new home is not the main issue, selling their existing one is the frustrating part.

With demand for rental property at a high and rental incomes rising as a result, a growing number are looking at keeping their existing property and becoming landlords themselves. This has given rise to the let to buy mortgage, which allows you to take a mortgage on your new home, whilst renting your existing home out to tenants.

As a professional mortgage brokerage, we are well versed in this type of transaction and we thought it would be useful to put together a brief, plain-speaking guide to the things to watch out for when looking at this type of product.

Advantages Of Let To Buy

  • You can earn rent from your existing property and purchase another property anywhere in the UK, very useful if having to relocate
  • It can make all the difference in a chain situation if selling the property is proving more difficult than initially envisaged
  • It enables you to keep your current property as a long-term investment whilst the mortgage is paid by the tenants and it will even become the start of a property portfolio

Affordability and rental income

In general, any new mortgage lender calculates the maximum that they are prepared to lend you and does not take your existing mortgage into consideration as a commitment as long as the rent covers the existing mortgage payment. Different lenders have differing calculations for this, for example, a lender may want the rent to equal 125% of the mortgage payments at an assumed interest rate of 6%. If the rent does not cover this, then any additional payments will be taken off your income when calculating how much you can borrow on the new property. It can all get rather complicated! If your income is sufficient to cover your new loan and your existing mortgage, then you are home and dry.

Consent to let

Many lenders who are granting the mortgage on your new property will now want to see Consent to Let from your existing lender. This shows that your existing mortgage provider is aware that the property is going to be let out and is happy for you to do so. Some lenders will only grant this if there is a good reason, for example, job relocation, whilst others will accept but will increase the current interest rate you are paying. Whilst there are lenders who do not ask for such consent, it is always important to be above board with both lenders. Not being so can void your mortgage contract, your buildings and contents insurance and potentially lead to serious allegations. Find out more about consent to let in our handy guide.

Buy to let mortgages

Remortgaging your existing property onto an official Buy to Let or Rent to Buy Scheme is the best option for many, as this could enable you to release some much-needed equity in your current property to use as a deposit for the new one. Lenders will assess the borrowing capacity not on your current income, but on the rental income that can be achieved which is then put through a specific formula. For example, the rental income must equal 125% of the mortgage interest payments at the mortgage pay rate. This cover does vary from lender to lender so it is important to speak to an expert who understands all the small print.

Being a landlord

Whilst being a landlord can be highly profitable it is certainly not for everyone. Being woken up by the phone ringing at 3 am because of a faulty boiler and finding the time to fix little niggles can prove to be too much. Employing the services of a good management agent will reduce this stress, but eat into your profits so make sure this is costed in from outset. You should also prepare for the possibility of the odd void period. Suddenly having to pay two mortgages may be a stretch so it is a good idea to have at least 3 to 6 months of mortgage payments in an emergency account just in case. There are also a plethora of rules and regulations a landlord should know, so make sure you do your homework and know what you are liable for.

Points to consider

  • Not all homes are suitable for letting, for example, some areas may have an over-supply of one bedroom flats making renting similar property difficult
  • If your property is leasehold you will need to make sure that your lease has no restrictions on the letting of your property
  • You must inform your building and contents insurer
  • It is important to speak to an experienced Mortgage Adviser to gain all the facts before proceeding

Give us a call on 020 7220 5110 or fill out the form below to arrange a no-obligation chat!

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    Andrew Montlake

    Written by Andrew Montlake

    Andrew Montlake, better known as Monty, began his journey with an Hons degree in Economics & Politics before starting in the mortgage industry in February 1994. As a main founder of Coreco in 2009, he successfully grew the brand, marketing, and communications, and was made MD in 2019 focussing on the overall vision, strategy, and culture of the company. As Coreco’s media spokesperson, Andrew can often be seen or heard on TV and radio as well as regularly commenting in the national, local, and trade press. He is the author of this acclaimed Mortgage Blog and is well-known for his social media, podcasts, and public speaking. Andrew is now proud to serve as Chairman of the Association of Mortgage Intermediaries, (AMI) as a cheerleader for the Mortgage Industry as a whole and continues to work at the coal face, writing mortgage business and advising clients.

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