Select purchases from the 3 bars top right. Take a photo of the receipt and complete the details asked for. You can still record the details if you don’t want to photo the receipt or just import a file.
Yes, you will be able to run a VAT/Tax report by date.
If you are registered and have entered the tax rate in your settings, you will be able to run a VAT / Sales Tax, report for your quarterly, annual returns.