What is all this alphabet soup of different accounts?

They sound more complicated than they are! In reality, they all do pretty much the same thing – they are accounts in which you can own shares or funds. The differences are in their tax treatment, so it’s worth making use of them all to get free money or to be shielded from tax.

Because the government want to encourage saving in general, and saving specifically for retirement, we have a tax-sheltered saving account in the form of the ISA, and a tax-sheltered retirement saving account in the form of the SIPP. These are in addition to a general investment account, the GIA.