Moving Home
Can You Have More Than One Mortgage? A 2026 Guide
There is no legal limit on how many mortgages you can have. What limits you is affordability, your credit file, your deposit and each lender's own rules on why you need the extra borrowing.
Written and reviewed by Davi Thakar, CeMAP qualified mortgage and protection adviser Updated
Yes, you can have more than one mortgage. There is no legal limit, but each lender has to be happy you can afford all of your borrowing together, and the type of mortgage depends on why you need it.
People end up with two or more mortgages for lots of reasons. Buying a buy to let, keeping your old home when you move, buying a second home or raising money with a second charge. Each one is assessed differently.
This guide covers how lenders look at more than one mortgage, the options when you move and the costs people forget. For the full moving process, see our home mover mortgage guide.
Can you get a second mortgage while you already have one?
Yes, if the numbers and the reason stack up. A residential lender will count your existing mortgage payment as a commitment and check you can afford both. A buy to let lender will mostly look at the rent. Most lenders want a clear, genuine reason for a second residential mortgage, such as a weekday home near work.
Why would you have more than one mortgage?
| Situation | Type of borrowing | What the lender mainly looks at |
|---|---|---|
| Buying to rent out | Buy to let mortgage | Rent compared with the payment, your deposit and experience |
| Keeping your old home and letting it | Let to buy plus a new residential mortgage | Rent on the old home, your income for the new one |
| Buying a second home or holiday home | Second residential mortgage | Your income after both payments, and why you need it |
| Buying before you sell | Bridging loan or a lender happy to carry both | Your exit plan and whether you can cover both payments |
| Raising money without remortgaging | Second charge mortgage | Equity, affordability and your existing first mortgage |
How do lenders assess more than one mortgage?
- Affordability. For a residential mortgage, the lender takes your income and subtracts all your commitments, including your current mortgage. It then tests whether you could still pay if rates rose.
- Rental cover. For buy to let, lenders usually want the rent to cover the interest by a set margin at a stressed rate. Many use 125% to 145%, depending on your tax position and the product.
- Credit file. A well run existing mortgage helps. Recent missed payments make it harder, though specialist lenders may still help.
- Deposit and equity. Each mortgage is assessed on its own property. Buy to let usually needs at least 25% down.
- Portfolio size. Once you have four or more mortgaged buy to lets, lenders treat you as a portfolio landlord and look at the whole portfolio. See our portfolio landlord mortgage guide.
Illustration only
A homeowner wants a buy to let that will rent for £1,200 a month. If a lender wants the rent to cover 125% of the interest at a stressed rate of 5.5%, the most the rent supports is about £960 a month of interest. That works out at a loan of about £209,000. If the lender used a higher stress rate or a higher cover ratio, the loan would be smaller. These are not lender quotes.
Which situations do lenders see most?
These are illustrative situations, not Option Finance client outcomes.
First buy to let
You keep your home and buy a flat to rent out. The lender looks at the rent, your deposit and your income.
Rent and deposit do most of the workMoving and keeping the old home
You let your current home and buy a new one. Two lenders need to be happy with the same plan.
Line up both lenders togetherBuying before your sale completes
Your buyer drops out but you do not want to lose the new home. Bridging can fill the gap.
The exit plan matters mostKeeping a low fixed rate
You need money for works but your current deal has a large early repayment charge. A second charge leaves it in place.
Compare the total cost, not the rateWhat are your options when you move home?
- Port your mortgage. Many deals let you take your rate to the new property. You still have to pass the lender’s current checks, and extra borrowing is usually on a separate rate.
- Take a new mortgage. If your deal is ending or the early repayment charge is small, a new lender may be cheaper overall.
- Keep the old home and let it. You need consent to let from your lender or a buy to let remortgage, plus a new residential mortgage.
- Use bridging. A bridging loan can fund the purchase before you sell. It is expensive, so you need a realistic sale plan.
Real client case: buying the next home before selling
Our client had found the right next home but hadn’t sold their current one, and didn’t want to lose the new house while they waited. They wanted to know if they could hold two residential mortgages for a while.
The challenge was affordability. Many lenders count both mortgage payments when they work out how much you can borrow. We reviewed the client’s income, existing mortgage, deposit and the new mortgage, then went to lenders willing to look at their circumstances with the old home still owned. We also went through the extra Stamp Duty. Because the client still owned the old home on completion day, the higher rates applied to the new purchase. Once the old home, their previous main home, is sold within three years, they can claim that extra Stamp Duty back from HMRC, as long as they apply within 12 months of the sale. The purchase completed without waiting for the sale, and the client could then sell the old home in their own time.
What this shows: you can buy before you sell if your income supports both payments with the right lender. Plan for the Stamp Duty surcharge up front, because you pay it on completion and only get it back after the old home sells. GOV.UK sets out the rules in its guide to claiming a repayment of the higher rates.
What about second charge mortgages?
A second charge is a separate loan secured on a home that already has a mortgage. Your first mortgage stays as it is. It can make sense when your current rate is low or leaving would trigger a big early repayment charge. Rates are usually higher than a first mortgage because the second lender is repaid after the first if the home is sold. Residential second charges are regulated, so you get the same advice standards as a normal mortgage.
What costs do people forget?
Stamp Duty. If you will own more than one home at the end of completion day and are not replacing your main home, you usually pay an extra 5% on every band in England and Northern Ireland. On a £250,000 second home that means £15,000 rather than £2,500. If you bought before selling your main home, you can claim the extra back if you sell within three years. See GOV.UK’s guide to buying an additional residential property and our Stamp Duty guide.
Income tax on rent. For individual landlords, mortgage interest is not deducted from rent. Instead you get a basic rate tax credit. From April 2027 property income will have its own rates of 22%, 42% and 47%, with finance cost relief at 22%. If your property and self-employed income is over £50,000, Making Tax Digital applies from April 2026. Our buy to let tax guide covers this.
Capital Gains Tax on a later sale. A second home or rental does not get the same relief as your main home. Gains are taxed at 18% or 24% depending on your income. See GOV.UK’s Capital Gains Tax rates.
Frequently asked questions
Is there a limit on how many mortgages I can have?
There is no legal limit. Each lender sets its own rules, and some cap how many mortgages or how much total borrowing they will accept.
Can I have two residential mortgages at once?
Sometimes. Lenders want a genuine reason, such as a home near work, and you must afford both payments from your income.
Does my existing mortgage reduce how much I can borrow?
Yes, for a residential mortgage. The payment is counted as a commitment. For buy to let, the rent usually matters more than your existing payment.
Do I pay extra Stamp Duty on a second property?
Usually yes, an extra 5% on every band in England and Northern Ireland, unless you are replacing your main home.
Can I get a second mortgage with bad credit?
Possibly, through specialist lenders. Expect a bigger deposit or higher rate, and it depends how recent and serious the issues are.
Is a second charge the same as a second mortgage?
A second charge is a loan secured behind your first mortgage on the same home. A second mortgage often means a mortgage on a different property.
Do I need to tell my lender if I let out my home?
Yes. You need consent to let or a buy to let mortgage. Letting without permission can breach your mortgage terms.
Speak to Option Finance about more than one mortgage
Tell us what you own, what you owe and what you want to do next. We will tell you straight whether the numbers work, which type of borrowing fits and what it will cost.
Book a free initial consultation using the enquiry form below. See our moving home mortgage advice, our guide to remortgaging to buy a second home and our let to buy guide.
Talk through your mortgage options
Tell us about your plans and circumstances. Your initial consultation is free.
Talk through your mortgage options
Tell us about your plans and circumstances. Your initial consultation is free.
Written and reviewed by Davi Thakar
Director & Senior Mortgage Broker
CeMAP Qualified Mortgage and Protection Adviser
Davi founded Option Finance with a vision to deliver transparent mortgage advice from a wide panel of lenders. With over 10 years in financial services, he specialises in complex cases including adverse credit, self-employed borrowers with limited trading history, and large buy-to-let portfolios. He works directly on complex cases and explains each option clearly.
Meet Davi Thakar
