Help to Buy calculator

Use our Help to Buy 2013-2020 calculator to work out what you could afford to buy in London, Scotland, Wales and the rest of England. Learn how the scheme could help you to afford your first home with a small deposit and equity loan from the government. Find out more about the Help to Buy schemes, including shared ownership, Help to Buy ISA and Lifetime ISA in our Help to Buy guide.

Help to Buy property location

Property value


Deposit amount



Equity loan as % of property value

Initial mortgage interest rate

Choose one of the examples here, or enter your own rate

Enter a different rate


Your Help to Buy calculation

  • Deposit



  • Equity loan



  • Mortgage from lender



To get that much mortgage, you'd need a total annual income of about:

£NaN - £NaN

Mortgage lenders usually multiply your salary by a maximum of 5 times to decide how much they will lend you. They will also check your credit file.

How much can I borrow?

Monthly repayments

Assuming your interest rate stays at % for the full mortgage term of 25 years.

You pay no interest on the equity loan for 5 years. In year 6, the interest rate will be 1.75%. Every year after that, it increases in line with inflation plus 1%.

YearEquity loan interest rateMonthly payment

These calculations are for guidance only.
See below for how to repay the equity loan.

Help to Buy mortgage schemes are designed to help first-time buyers across England, Scotland and Wales to get onto the property ladder.

The 4 main Help to Buy mortgage schemes are:

  • Help to Buy: Equity Loan
  • Help to Buy: Shared Ownership
  • Help to Buy ISA (now closed)
  • Lifetime ISA

What is the Help to Buy: Equity Loan?

A Help to Buy equity loan is a loan from the government which helps first time buyers purchase a new-build property, giving them access to an interest-free loan for the first 5 years.

You need at least a 5% deposit to be eligible for the Help to Buy equity loan. The government then loans you a lump sum for a specified amount of the property value and you take out a mortgage to make up the remaining amount of the purchase price. How much the government will lend you depends on where the property is:

  • Within Greater London < 40%
  • England (excluding London) < 20%
  • Wales < 20%
  • Scotland < 15%

For example, if you're buying a property in London, the Help to Buy scheme would allow you access to a government loan of up to 40% of the value of the property. The remaining 55% of the property price is covered by a residential mortgage. The government loan reduces the amount of mortgage required, giving you access to mortgages with a lower loan to value ratio (LTV) and therefore cheaper rates.

To be eligible for the equity loan, the property must be a new build and constitute your only residence. Only first time buyers can apply to the Equity Loan scheme from 2021-2023.

Between April 2021 and March 2023, a new version of the scheme will be available. It will only be open to first-time buyers in England and introduces regional property price caps.

The Help to Buy regional price caps will be:

  • North East - £186,100

  • North West - £224,400

  • Yorkshire & the Humber - £228,100

  • East Midlands - £261,900

  • West Midlands - £255,600

  • East of England - £407,400

  • London - £600,000

  • South East - £437,600

  • South West - £349,000 You can get the equity loan on Help to Buy properties with a maximum value of:

  • £600,000, in Greater London

  • £400,000, in the rest of England

  • £300,000, in Wales

  • £200,000, in Scotland

Combining the maximum equity loan percentage with the maximum property value in the different UK locations, the biggest loans you could get are:

  • £240,000, in Greater London
  • £80,000, in the rest of England
  • £60,000, in Wales
  • £30,000, in Scotland

For example:

On a £400,000 property in London, you’d need to save a minimum £20,000 deposit (5% of the property’s value). You could then get an equity loan of £160,000.

This means you'd only need a mortgage for £220,000. Without the loan, you'd need £380,000. Having the loan thus reduces your monthly repayments because you're borrowing less money from the mortgage lender.

While this might sound great, remember - you will need to pay the equity loan back. It is only interest-free for the first 5 years. If you do not sell the property before then, you'll end up repaying your mortgage plus the loan at the same time.

How to apply for a Help to Buy equity loan

Contact your local Help to Buy agent to find out what Help to Buy properties are available in your area. You can talk to them about getting the equity loan too. You can use our help to buy affordability calculator to work out whether you could afford a property using the loan scheme.

If you decide that Help to Buy is the best option for you, you may wish to contact a mortgage broker to ensure you apply for a mortgage with a lender that specifically provides Help to Buy mortgages.

You'll only receive the equity loan (via your conveyancer) once you've exchanged contracts with the seller. Up until that point, the sale is not considered confirmed.

You can apply for the equity loan until March 2021, which is the original deadline for the scheme.

Changes in Equity Loan rules in England

Between April 2021 and March 2023, a new version of the scheme will be available. It will only be open to first-time buyers in England and introduces regional property price caps.

The Help to Buy regional price caps will be:

  • North East - £186,100
  • North West - £224,400
  • Yorkshire & the Humber - £228,100
  • East Midlands - £261,900
  • West Midlands - £255,600
  • East of England - £407,400
  • London - £600,000
  • South East - £437,600
  • South West - £349,000

To qualify for the current scheme, purchases must reach completion before 31 March 2021. Scotland, Wales, and Northern Ireland have their own schemes.

Repaying the Help to Buy equity loan

You can repay the equity loan at any time without a penalty, in chunks of 10% or 20%.

You must repay it fully after 25 years, when you sell the property or when your mortgage term finishes – whatever happens first.

The loan is interest-free for the first 5 years, though you have to pay a £1 management fee every month.

In year 6, the interest on the equity loan will be 1.75%. After that, the rate increases each year by the retail price index (RPI) measure of inflation, plus 1%. This is known as ‘staired’ interest.

The rate of interest on the equity loan is fairly low, but it can add significantly to your monthly mortgage repayments, especially if you borrowed the maximum amount. To find out how much interest you would pay, you can use our help to buy monthly repayment calculator above.

For example, on a £400,000 London property, the interest in year 6 alone (on a 40% loan) would be £2,800. Remember, that interest payment is in addition to your monthly mortgage repayments.

Using a Help to Buy repayment calculator

To work out how much you will repay to the government, remember that the amount needed to fully repay the equity loan is based on the property value when you sell it, not when you bought it. This means that if property prices have gone up, you must repay more than the original loan amount.

So, if you sold that £400,000 London property for £450,000, and you had taken the full 40% equity loan (£160,000), you would have to repay the government £180,000. That’s £20,000 more than you originally borrowed.

However, if property prices fall and you only managed to sell yours for £380,000, you’d just repay £152,000. £8,000 less than you originally borrowed.

What Help to Buy mortgage schemes are available?

There are regional-specific versions of the Help to Buy equity loan, including:

  • Help to Buy South
  • Help to Buy London
  • Help to Buy Scotland

Help to Buy: Shared Ownership

The Shared Ownership scheme allows you to buy between 25% and 75% of an ex-council or new-build property. You take out a mortgage for the part that you own, and pay rent on the remaining share.

This scheme is sometimes known as ‘part buy part rent’.

On new build properties, the share you do not own is owned by the property developer. On ex-council properties, that share is owned by the housing association and in both cases, the property is a leasehold.

Because you're borrowing less money, you need a proportionally smaller deposit to buy a property.

The combined cost of the mortgage and rent payments are usually in line with what you'd pay if you had a mortgage for the whole property.

How does shared ownership work?

To qualify for the shared ownership scheme, you must be one of the following:

  • A first-time buyer
  • An ex-homeowner
  • A current shared owner looking to move

You could buy a shared ownership property with very little deposit.

For example: a 25% share of a £200,000 property is £50,000. A 5% deposit of £50,000 is £2,500 – so that's the minimum you would need to save. You then need a mortgage lender to loan you £47,500 for the rest of your 25% share.

The housing association or property developer would own the other 75% (£150,000) of the property. That's the part you would pay the subsidised rent on, which is cheaper than the market value and normally around 3%.

To calculate your total monthly payments, you would need to add this rent to your monthly mortgage repayments.

To qualify for the scheme, your total household income cannot be more than £80,000 (or £90,000 in London).

There are independent schemes for London, Scotland, Northern Ireland and Wales.

There are also similar shared ownership schemes for people with long-term disabilities and people aged 55 and over.

Additional costs on shared ownership properties

As well as your mortgage and rent, you may need to pay a service charge and/or ground rent. This is because shared ownership properties are primarily leasehold.

Unless you're a first-time buyer purchasing a property valued below £500,000, you will have to pay stamp duty.

Can I increase my equity in a shared ownership home?

You can gradually increase your share in the property by buying it from the housing association (or property developer). This is known as “staircasing”. The cost of acquiring more equity in the property depends on its current market value, so it could go up or down. You can eventually own 100% of the property but you might not be able to acquire the freehold. If that’s important to you, be sure to check with the housing association before you buy. Not every lender offers shared ownership mortgages, so it’s worth looking into the options available if you decide to pursue shared ownership.

Help to Buy ISAs - Now Closed

The Help to Buy ISA is a tax-free savings account aimed at first time buyers saving for a deposit. The government pays a 25% (£50) bonus for every £200 you save into the account and just like every ISA, the interest earned is tax-free.

This scheme was closed to new customers in November 2019.

If you already have a Help to Buy ISA, you can continue to save up to £200 into the account each month until December 2029. The maximum you can save into the scheme is £12,000, so the maximum bonus is £3,000. The 25% government bonus is only paid if you have saved £1,600 or more and use it for a deposit on your first property by December 2030.

The bonus is paid in one lump sum to your solicitor or conveyancer after you have exchanged contracts..

Lifetime ISAs

If you missed the deadline for taking out a Help to Buy ISA, worry not, as you may find a Lifetime ISA (LISA) a suitable alternative.

With a LISA, the government also adds a 25% bonus to your (tax free) savings, provided you use it to buy a first home, or for retirement.

But unlike the Help to Buy ISA, the bonus is paid at the same frequency you contribute to the pot, not just when you withdraw. So, if you pay in monthly, so does the government.

You can save up to £4,000 per year into a LISA, meaning your maximum yearly bonus is £1,000 and the account can remain open for 32 years.

Anyone aged between 18-39 can open a LISA and the money can be used either for a deposit on a first home, or for retirement (when you turn 60). You can contribute to a LISA until the day before you turn 50.

LISA Penalties

With a LISA, your funds are locked away for the first year. If you try to withdraw earlier, you will not get the 25% bonus and will have to pay a 25% fee instead.

However, on 5 May 2020, the Treasury announced that LISA holders who need to withdraw funds early will be charged 20% until April 2021.

So, if you had £1,000 in your LISA, with the 25% bonus of £250 you would have a total of £1,250. Normally, if you wanted to withdraw your savings you would be charged a 25% penalty - £312.50 – meaning you would receive just £937.50. If you made the withdrawal before April 2021, however, you would be charged 20%, or £250 – meaning you would receive your full £1,000 back.

Transferring LISAs

LISAs can be transferred from one provider to another, allowing you to chase the best rates and you are allowed to contribute to both a LISA and Cash ISA in the same year.

What’s more, if you use your LISA savings to buy a property, you can keep the account open and use it to save for retirement.

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Last updated: 15 April, 2021