A guide to Help to Buy ISAs – Money Advice Service

A Help to Buy ISA is a government scheme designed to help you save for a mortgage deposit to buy a home. To qualify you must be classified as a first-time buyer and not own a property anywhere in the world. Savings are tax free just like with any ISA product, however, a Help to Buy ISA gives you the added bonus of getting government contributions.

https://www.moneyadviceservice.org.uk/en/articles/a-guide-to-help-to-buy-isas