Renting out your current home: what happens to the mortgage?
If you are moving out and plan to let your home, speak to your mortgage lender before a tenant moves in. Count Ready can help you understand whether consent to let, a change with your present lender or a buy-to-let remortgage is worth exploring.
Your route depends on the lender’s terms, the property and what you plan to do next.
Can you change a residential mortgage to buy-to-let?
Possibly, but get your current lender’s permission before letting the property. Depending on your plans and its policy, the lender may consider consent to let on your existing residential mortgage or a switch to a buy-to-let arrangement. You might instead apply to a different lender for a buy-to-let remortgage. None of these routes is automatic, and you should not assume that a residential mortgage permits tenants.
The first question is not “Which rate is lowest?” It is how long you expect to let, whether you are buying another home, and what your mortgage, lease and insurance allow. GOV.UK’s landlord guidance says to get permission from your mortgage lender before renting out a mortgaged property.
Moving away temporarily?
Ask your lender about consent to let. It keeps the existing mortgage in place if permission is granted, but conditions, charges, duration and renewal vary. Get the terms in writing and check what happens when the permission ends.
Planning to let for longer?
Review a buy-to-let switch with the current lender and a remortgage with another lender where suitable. Compare the full cost, likely rent assessment and time needed—not just an advertised rate.
Buying another home?
You may need to coordinate the mortgage on the home you keep with borrowing for the new residence. Our let-to-buy guide owns that two-property journey and explains what to discuss before making an offer.
Already letting with a buy-to-let mortgage?
If you are refinancing an existing rental mortgage, use our buy-to-let remortgage guide. The checks and decision point differ from changing a home that is currently on residential terms.
If there is no mortgage on the property, there is no residential loan to convert, but the insurance, lease, tax and landlord obligations still need attention.
Consent to let or a buy-to-let mortgage?
There is no single answer for every homeowner. The present mortgage terms and your reason for moving shape the conversation with the lender.
Consent to let
Your current lender may permit you to let while retaining the residential mortgage. It can set a time limit, fee, rate change or other conditions, and may refuse a request. It is especially worth asking about if your move may be temporary or your existing deal has a substantial early repayment charge.
Do not treat consent as permanent permission or assume that another lender will grant the same terms. Ask when it expires and how to renew or end it.
Buy-to-let switch or remortgage
A buy-to-let mortgage may be relevant if you intend to let for the foreseeable future. Your current lender may have a route, or a different lender may consider an application. The property, rent, equity, applicant, proposed tenancy and wider finances can all affect the answer.
Switching can involve valuation, legal work, a new product fee or an early repayment charge. A lender may decline even where you have previously held consent to let.
Checks that can change your options
Mortgage and property
The loan balance, remaining deal period, early repayment charge and current value affect the cost of changing. Lenders may also assess property type, condition, lease length, building and any restrictions on letting.
Rent and wider finances
A buy-to-let lender may test expected rent using its own valuation and calculation, which may differ from the rent you expect or your present repayment. It may consider personal income, credit and other properties too. Criteria differ by lender and product.
Tenants and intended use
Tell your lender and adviser who will live there and how the home will be let. If a relative may occupy it, read our family-occupation guide before assuming an ordinary buy-to-let route will fit. If you plan to let to students, our student-property guide explains checks for that property and letting arrangement. Short stays or holiday letting may also need different permission or products.
Your next home and timing
If you will purchase another residence, affordability and property-tax questions arise alongside the mortgage on the home you keep. Letting and purchase dates should be planned together, especially if a transaction depends on both loans.
Do not rely on a quoted deposit, income or rental-cover percentage as a rule for every lender. An adviser should check current criteria for your exact property and plan before suggesting a route.
Costs and responsibilities beyond the mortgage rate
Compare the cost of staying with your present lender against changing product or lender. Include any consent-to-let charge, product or broker fee, valuation, legal work, exit fee and early repayment charge. Budget for repairs, insurance, agent fees and periods without a tenant; rent is not a guaranteed monthly receipt.
Insurance, lease and landlord duties
Tell your insurer the property will be let and check appropriate cover. If it is leasehold, check the lease and any freeholder permission. Any housing scheme conditions may also matter. Landlord duties differ across the UK, so check the rules where the property is located. Our landlord insurance page explains cover to discuss.
Tax when you keep or move a property
Rental income can create tax reporting and payment obligations. If you buy another home while retaining this one, additional-property transaction tax may apply; the rules differ between England, Northern Ireland, Scotland and Wales. Changing mortgage terms alone is different from buying or transferring ownership. Ask an accountant and conveyancer to assess your circumstances before committing.
For an England or Northern Ireland purchase, our SDLT calculator is an estimate, not a tax assessment. Check current HMRC additional-property guidance with your conveyancer. A transfer into a company may have separate tax and lending consequences.
What should you have ready?
Start with a short outline. An adviser can tell you which evidence is relevant and how to provide it securely after the initial conversation.
Useful for a first call
- Why you are moving and whether the letting is temporary or long term.
- Your current lender, approximate mortgage balance and deal end date.
- The property’s approximate value, expected monthly rent and intended occupants, including whether any are related to you.
- Your move date and whether you are buying another home.
- Any known lease, scheme, credit or insurance issue.
Evidence that may follow
- A recent mortgage statement and the lender’s consent-to-let or redemption terms.
- A realistic rental estimate and property details.
- Identity, income and bank evidence requested for a particular application.
- Details of any other borrowing or rental properties.
Do not put bank statements, identity documents or account numbers in an initial callback message.
Tell us what is changing
We clarify the current loan, the intended letting and your next place to live.
Compare relevant choices
We discuss your lender’s position and, where suitable, new-lender options, costs and likely evidence.
Apply if appropriate
With your agreement, we help prepare the chosen application. The lender decides after its own checks and valuation.
Check the adviser and the fee before proceeding
Who you are dealing with
Count Ready Limited says it is an appointed representative of Connect IFA Limited. Check the Financial Services Register and meet the business. The regulatory treatment of buy-to-let borrowing depends on the facts; some business buy-to-let mortgages are outside FCA regulation.
What advice may cost
Count Ready’s initial evaluation has no fee. Its Terms of Business explain any later administration and advice fees, when they become payable and how the business is paid by lenders. Confirm the charges for your case before instructing chargeable work. You can also read customer reviews in their original context.
Count Ready is a broker, not a lender. Mortgage advice cannot guarantee consent to let, a particular rate, an approved application or a completion date. Tax and legal advice should come from appropriately qualified professionals.
Changing to buy-to-let: FAQs
Can I rent out my home without changing the mortgage?
Only if your current lender permits the proposed letting under the mortgage terms, for example through consent to let. Ask before a tenant moves in, get the conditions in writing and tell your insurer. Do not assume an existing residential mortgage already allows letting.
How long does consent to let last?
It depends on the lender’s written terms and your circumstances. Some permissions are time limited or require renewal; fees or rate changes may apply. Check the expiry date and what the lender expects you to do next.
Do I need a particular amount of equity or rent?
There is no figure that applies to every lender and product. A proposed buy-to-let lender may consider the property value, loan balance, its assessment of rent and other factors. A current lender’s consent-to-let policy is a separate decision.
What if my fixed-rate deal has not ended?
Check the early repayment charge and whether your lender would consider consent to let or a product change. A remortgage may still be possible, but the full cost of leaving the deal should be compared before applying.
Can I buy another home while keeping and letting this one?
It may be possible, subject to both mortgage applications and the cost of holding two properties. Read our let-to-buy guide for the coordinated purchase and letting journey, and obtain conveyancing advice on property tax.
Will changing my mortgage itself create stamp duty?
A change to mortgage terms without a purchase or ownership transfer is different from buying an additional property. A purchase, transfer of ownership or company restructure can create tax consequences. Ask a conveyancer or tax adviser to assess the actual transaction and jurisdiction.
Could I move back into the property later?
Tell the lender before changing how the property is used. A buy-to-let mortgage may prohibit owner occupation, and returning to live there could require a different mortgage or lender permission. Check the mortgage and insurance terms before moving back.
Tell Count Ready what you plan to do with your home
A brief account of your current mortgage, intended move date, expected rent and whether you are buying another home is enough to start. We can then identify which lender terms and evidence need checking. An initial conversation is not an application or a promise that a switch is available.
Your property may be repossessed if you do not keep up repayments on your mortgage.