Negative Equity Guide — What It Means and What You Can Do
What negative equity is, how it happens, your options if you're in negative equity, and how it affects remortgaging, moving house, and selling your home.
·5 min read
Negative equity happens when your home is worth less than what you owe on your mortgage. Here’s what it means, how it affects you, and what your options are.
What Is Negative Equity?
Term
Meaning
Equity
The portion of your home you own outright (property value minus mortgage balance)
Positive equity
Your home is worth more than your mortgage — you have equity
Negative equity
Your home is worth less than your mortgage — you owe more than it’s worth
Loan-to-Value (LTV)
Your mortgage as a percentage of the property value — over 100% means negative equity
Example
Detail
Amount
Property value when you bought it
£250,000
Mortgage
£237,500 (95% LTV)
Current property value
£220,000 (prices fell 12%)
Current mortgage balance
£230,000 (paid off some)
Equity
£220,000 – £230,000 = –£10,000
Current LTV
230,000 ÷ 220,000 = 105%
What Causes Negative Equity?
Cause
How it happens
House price falls
Regional or national price drops reduce your property’s value
High LTV mortgage
Buying with a 5%–10% deposit gives very little buffer
Interest-only mortgage
Balance doesn’t reduce — any price drop causes negative equity
Additional borrowing
Taking out more lending against the property
Overpaying for the property
Paying above market value (e.g. in a bidding war)
Local factors
New development, infrastructure changes, or area decline
Does Negative Equity Matter?
Situation
Impact
You’re staying put
No immediate impact — keep paying your mortgage as normal
You want to remortgage
Difficult with a new lender; product transfer usually possible
You need to sell
You’d need to pay the shortfall — or negotiate with your lender
You want to move
Complicated — may need a negative equity mortgage
You’re separating/divorcing
Can complicate property division
You lose your job / can’t pay
More serious — lender may repossess, leaving you with residual debt
Your Options
Option 1: Stay and Wait
Detail
Information
Strategy
Continue making mortgage payments and wait for prices to recover
Timeframe
Price recovery could take 2–10+ years depending on the market
Risk
Low — as long as you can afford payments
Cost
Nothing extra — you’re just continuing normal payments
Best for
Most people — especially if you like your home and can afford it
Option 2: Overpay Your Mortgage
Detail
Information
Strategy
Pay more than your minimum payment to reduce the balance faster
Typical overpayment limit
10% of the outstanding balance per year (check your mortgage terms)
Benefit
Reduces your negative equity and total interest paid
Example
Overpaying £200/month on a £230,000 mortgage saves years and thousands in interest
Best for
People with spare income who want to fix negative equity faster
Option 3: Product Transfer with Your Current Lender
Detail
Information
Strategy
Move to a new mortgage deal with your existing lender
Advantage
No new valuation needed — lender already has the mortgage
Availability
Most lenders offer product transfers even in negative equity
Rate
May not be the best rate available, but usually better than standard variable rate
Best for
When your fixed rate ends and you want to avoid SVR
Option 4: Negative Equity Mortgage (Porting)
Detail
Information
Strategy
Transfer your mortgage to a new property when you move
How it works
Existing lender allows you to port the mortgage, including the negative equity element
Availability
Not all lenders offer this; depends on your circumstances
Restriction
The new property usually needs additional borrowing — assessed on affordability
Best for
People who need to move (job relocation, family change)
Option 5: Shortfall Sale
Detail
Information
Strategy
Sell the property for less than you owe, with your lender’s agreement
Shortfall
You may still owe the difference as an unsecured debt
Credit impact
Serious — similar to a default or arrangement
When considered
Usually a last resort, or when circumstances make staying impossible
Lender agreement
Required — you cannot just sell without clearing the mortgage
Remortgaging in Negative Equity
Option
Possibility
New lender
Very unlikely — no lender will offer 100%+ LTV on a new application
Current lender product transfer
Usually available — your best option
Switch to repayment from interest-only
Helps reduce balance — good long-term strategy
Government schemes
Currently no specific negative equity scheme; check Help to Build or local authority schemes
If You Can’t Afford Your Payments
Step
Action
1
Contact your lender immediately — they must treat you fairly
2
Ask about a payment holiday (temporary)
3
Ask about switching to interest-only temporarily
4
Ask about extending your mortgage term to reduce monthly payments
5
Get free debt advice (StepChange, National Debtline, Citizens Advice)
6
Check if you’re eligible for Support for Mortgage Interest (SMI)
7
As a last resort, discuss a voluntary sale with your lender
Support for Mortgage Interest (SMI)
Detail
Information
What it is
A government loan that pays mortgage interest if you’re on certain benefits
Who qualifies
UC, Income-based JSA, Income-related ESA, Pension Credit, Income Support recipients
Waiting period
39 weeks (9 months) for most claimants; none for Pension Credit
Payment
Government pays interest directly to your lender
Repayment
It’s a loan — secured against your property, repaid when you sell or transfer ownership
How Quickly Can Negative Equity Resolve?
Factors
Detail
House price growth
Average UK house prices have grown ~3–5% per year historically
Mortgage payments
Each repayment mortgage payment reduces your balance
Overpayments
Accelerate balance reduction
Example Recovery Timeline
Starting position
Year 1
Year 3
Year 5
Property value: £220,000
£226,600 (3% growth)
£240,500
£255,100
Mortgage balance: £230,000
£225,800 (regular payments)
£216,800
£207,000
Equity
–£800
+£23,700
+£48,100
In this example, negative equity resolves within about 1 year with normal growth and regular payments.