The benefits of doing your accounting "in the cloud" are tremendous. You get to be able to add receipts and payments while you are waiting for the train or your next meeting, in fact, you can keep your accounts up to date wherever you have an internet connection.
Most of the best cloud accounting solutions also provide a REST API through which you can connect your accounts to an eCommerce solution. For example, Kashflow and Shopify integrate seamlessly together and will save you a lot of extra typing.
You can also give access to your accountant who can check the entries before you file any returns or ask them to double check your entries and keep your accounts up to date every month.
VAT returns? File them electronically every quarter. No need to sit wading through a pile of receipts ever again!