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The six month rule is a lender convention, not a law. Most mortgage lenders will not lend against a property until the current owner has been registered at the Land Registry for at least six months. It applies in two directions: if you bought a property recently and want to remortgage it, most lenders will make you wait, and if you want to sell within six months of buying, the buyer’s lender may refuse to lend to them until the six months are up.
The rule exists because of mortgage fraud. Buying a property cheaply, inflating the value with a quick sale or a remortgage and walking away with the difference is an old trick, and the six month wait makes it harder. Lenders follow guidance in the UK Finance Mortgage Lenders’ Handbook, which tells the conveyancer to report any seller who has owned the property for less than six months.
Does the six month rule apply to every lender?
No. A minority of lenders will remortgage from day one, usually on the basis of the price you paid rather than a higher valuation, and some will consider a purchase from a seller who has owned for less than six months if the reason is sensible. That is where a broker earns their money, because the lenders who relax the rule are not the ones most people go to first.
Who does it catch most often?
Auction buyers, people who bought with cash or a bridging loan and want to refinance, refurbishment investors and anyone whose circumstances changed quickly after buying. Landlords are the largest group, which is why I keep a section on it in my buy to let mortgage hub.
Most lenders want the owner registered at the Land Registry for six months before they will remortgage the property
A buyer's lender may refuse to lend if the seller has owned the property for less than six months
A minority of lenders lend from day one, often at the purchase price rather than a higher valuation
How does the six month rule work when you remortgage?
The clock starts on the date your ownership is registered at the Land Registry, not the date you completed. Registration can lag completion by weeks or, in a busy period, months, so the six months can be longer than it sounds. Once you are past it, the full lender market opens up and the property is valued in the normal way.
Inside the six months, most lenders decline outright. The ones that will consider it split into two groups. The first will lend within six months but base the loan on the lower of the purchase price and the current valuation. If you paid £200,000 and the surveyor now says £240,000, the lender treats it as worth £200,000, so a 75% loan is £150,000 rather than £180,000. The second group will accept the new valuation where you can show the works that justify it, with invoices, before and after photographs and a schedule of what was done.
This matters most for people who bought to refurbish. The plan is usually to buy with cash or bridging, spend £30,000 on the property, then remortgage on the higher value to pull the money back out. Under the six month rule that plan stalls unless the lender is one of the few that will look at it early, and the loan may still be capped at what you paid.
How does the rule affect auction purchases?
Auction buyers usually have 28 days to complete, which is too short for a standard mortgage, so many complete with a bridging loan and plan to refinance. The six month rule then sits between them and the exit. The bridging loan keeps charging while they wait, so the cost of the wait needs building into the sums from the start. My page on auction property mortgages covers how to arrange the exit before you bid rather than after.
What happens if you sell within six months of buying?
The problem is the buyer’s lender rather than yours. When the buyer’s conveyancer checks the title and sees you have owned for less than six months, the handbook requires them to report it to the lender. Some lenders then decline, some ask for an explanation and a further valuation, and some carry on. The buyer may not find out until they are weeks into the purchase, which is when a chain collapses.
A cash buyer is unaffected. A buyer using one of the more flexible lenders may also get through. If you have a genuine reason to sell quickly, such as a job move, a relationship breakdown or a purchase that went wrong, it helps to have that reason written down early so the buyer’s broker can place the case with a lender that will accept it.
What are the exceptions to the six month rule?
The common exceptions are inherited property, where the executor or beneficiary is selling or remortgaging after probate, property being sold by a lender in possession, property bought from a developer under a part exchange scheme, and transfers between family members or on divorce. Lenders treat these differently from a quick flip because the reason for the short ownership is obvious. Some lenders also waive the rule where the owner has held the property under a different title, for instance after a transfer into a limited company, though that is lender specific and worth checking before the transfer.
How does the six month rule affect a bridging exit?
Bridging is short term and expensive, and a term mortgage is the usual way out of it. If the bridging loan was used to buy, the term lender is in the same position as any remortgage lender and most will want the six months to have passed. The safer approach is to agree the bridging term with the exit in mind, and to have the exit lender identified before the bridge is drawn. My bridging loans page goes through how I approach the exit first.
What I see in practice
In my experience lenders have become more open to a day one remortgage than they were a few years ago, so the six month rule is less of a wall than it used to be. It still varies by lender and by how the purchase was funded, which is why I check the exit before an auction or refurbishment purchase is committed, not after.
Speak to an expert
If you bought recently and need to remortgage or sell before six months is up, send me the completion date, what you paid and what has been done since, and I will tell you which lenders would look at it.
What should you check before relying on a quick remortgage?
The first thing to check is the registration date at the Land Registry, because that is the date lenders count from. You can look it up for a few pounds and it may be later than you expect.
The second is the basis of valuation. If your plan depends on the property being worth more than you paid, find out whether the lender you have in mind will use the new value inside six months or cap the loan at the purchase price. That single point decides whether a refurbishment project releases its money in month three or month seven.
The third is the cost of waiting. A bridging loan running for an extra four months while you wait for the six month rule to pass can cost more than the difference between a flexible lender and a mainstream one. If the numbers are tight, it is often cheaper to arrange the bridge for the full period from the outset rather than extend it under pressure later.
For a landlord with an existing rental property, the six month rule is only one part of the picture, and the rest of the process is set out in how a buy to let remortgage works. Whether an early remortgage is the right route depends on what you paid, what the property is worth now and how long you can afford to wait. Your home may be repossessed if you do not keep up repayments on your mortgage.
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