You may have some savings in an ISA already, as you have used a previous years allowance. You can move this existing pot into a new ISA if you wish, for example if there is a higher interest rate on offer from a different provider or a fixed term ISA has matured.
You can transfer all of the money you put into an ISA in earlier years or only some of it, it is down to you but you may be limited by the terms and conditions of the account. However, if you want to transfer the money you have put into an ISA in the current tax year, you must transfer all of it. Money from a cash ISA can be transferred into either another cash ISA or into a stocks and shares ISA but a stocks and shares ISA can only be transferred into another stocks and shares ISA.
An ISA must be transferred directly between your old provider and your new provider. You cannot make this transfer yourself by closing the first ISA and paying the money into a new ISA. Instead, you must ask the new ISA manager to arrange the transfer. The old manager may charge for making the transfer - check the terms and conditions to find out. Some ISA managers do not accept transfers in of existing ISAs.
Your existing ISA provider has up to 5 working days (or to the end of any required notice period) to send your ISA balance to your new provider upon receiving your ISA transfer request. This period is defined by the ISA Regulations and HMRCs ISA Guidance Notes on ISAs. Some providers will start to pay you interest from the day you submit your transfer request.
Glossary
AER
Annual Equivalent Rate: shown as a percentage, this tells you the rate of interest you will earn over the period of 1 year. If your interest is paid monthly then the AER may be higher than the gross rate.
Annual Interest
The interest of an account paid annually
Base Rate
The offical rate of interest as set out by the Bank of England
Basic Rate Tax
Basic rate tax is charged at 20% on the first £35,000 of income above your annual personal allowance. The personal allowance is £7,475 for the under 65s, £9,940 for those aged 65-74 and £10,090 for the over 75s
Cash ISA
This is a Tax Free savings account where you can save up to £5,340 in a tax year
Fixed Rate
When the rate of interest is fixed for a period of time
Fixed rate ISA
An ISA where the rate is fixed for the life of the account
Fixed term
The set length of time of an account
Gross
Total amount of interest before tax
Introductory Bonus
A fixed introductory bonus on a variable interest rate account, this is normally set for a certain length of time from the opening of the account. Once the introductory period is over the rate will return to the normal variable rate
Junior ISA
An ISA designed especially for children
Lump Sum
A one off amount of money an individual wants to make into an account
Net
Interest after tax
Stocks & Shares ISA
An ISA where your money is invested in the Stocks & Shares market
Tax-free allowance
The amount allowed to be invested in an ISA account which is free of income tax
Variable Rate
The rate of interest is not fixed so can fluctuate throughout the term of the account