You don’t need to – but it is very helpful if you do. By linking your bank account, or by using Afirmo’s BNZ trust account, we can then see your business bank transactions and you can either match these to sales invoice or expense claims or add a category to them in order to produce a set of accounts. Afirmo uses this data to calculate your GST and income tax liabilities. You can save for these liabilities in the app, so you stay on top of your tax liabilities.