A Cash ISA (Individual Savings Account) is a type of savings account available in the United Kingdom that allows individuals to save money without paying tax on the interest earned. This makes it an attractive option for those looking to grow their savings while minimizing tax liabilities. Each tax year, there is a limit on how much money you can deposit into a Cash ISA. Cash ISAs are typically offered by banks and building societies, and they can come with various features, such as instant access or fixed-term options. The interest rates may vary, so it's important to compare different providers to find the best deal for your savings goals.