Hello Pip0001, we only have a trail of 201 but still if you're on 2016 and don’t have a subscription, we cannot and won't sell 2021 now due to it being discontinued. You would need to migrate to QBO but obviously can't do that at the moment. You could try upgrading the file on the trail, to allow you to file, but you would need to carry on using 2016 for data as the versions aren't backwards compatible. Here is the link for the trail. We would suggest possibly use the trail to get offer the initial problem of needing to file the VAT via MTD, but that is only a month's trail, however if you only use it to file MTD and nothing else, and restore a backup on 2016 to carry on working on until you can migrate into QBO.