As QF knows how much VAT has been charged by the company and how much VAT it has been charged, it should be able to predict how much the company VAT the company will owe (or be owed by) HMRC for the current quarter in real-time.
In either case, you can generate a VAT return which will show you the figures for that period as it stands. Nothing will be submitted until you choose to.
If you’re on accrual accounting for VAT, there’s also a summary for the period in the tax summary area (Reports >> Tax Summary).