I registered with Avalara for using their MTD add in filer for future VAT Returns. Received an email from them and a pdf file for instrutions. It did not add in automatically but eventually was able to add the add in through using options and add in for the excel file. I registered my company and logged in HMRC and authorised on the HMRC portal Avalara for filing for MTD. The Avalara was on the menu of the excel file, however when I closed the excel file and opended it, the Avalara add in disappeared. I went through the same procedure and had to register and authroise HMRC again, but again the Avalara add in disappears.
Has anyone used the Avalara MTD filer or had the same problems I am having and can help.