Saving a deposit to buy a home is no small feat. Especially in London, where first time buyers typically need around £45,000 for a 10% deposit, according to research from Nationwide.
The government recognises this affordability challenge of raising a sufficient deposit to step onto the housing ladder. So, it launched a 5% deposit mortgage initiative: the Mortgage Guarantee Scheme, allowing home buyers to borrow a 95% mortgage.
Introduced in 2021 as a temporary response to the COVID-19 pandemic’s impact on the mortgage market, which caused lenders to withdraw low-deposit mortgages, an updated version of the Mortgage Guarantee Scheme became permanently available in July 2025.
Here, we’ve broken down what the scheme is, how it works and how it can help you buy your first home.
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