“Looks like you’ve got a one month first period which is good, should get some teething problems sorted. This means you’ll prepare your first vat return during January for payment first week February using all of December info. Your vat periods should then read Jan, April, July, October as the wording seems to suggest the first months of your quarters. Again it’s going to be the one month return which will be odd, can you find out how the programme will deal with it?”
You would need to change the settings for your VAT period.
If you go to Reports >> VAT Returns >> VAT Settings, there’s an option to set the period. On the drop down you have a selection of 4 periods, plus monthly and yearly.