Many of the cloud packages are already MTD compatible and most should be by the time MTD starts.
Sage 50 Desktop products are not MTD compatible even if you have taken out support and enjoy regular software updates.
You will still need to purchase an additional MTD module in addition to your support package (which we understand will cost £25 a month), or upgrade to a Sage 50 cloud subscription which is MTD compliant with an ongoing subscription.
QuickBooks desktop customers we understand will require a subscription, so older versions of the software will need to be upgraded, or migrated to QuickBooks online.
If you use other products, you will need to contact your software vendor to find out about their plans for MTD. If compatibility is an issue, we may be able to assist with our own VAT filer software or to help with a software upgrade or change.