You may have 3 options to consider:
1. If you are using using QBD UK 2020 or older versions, you can buy a one time license for QBD UK 2019 or 2020 version to upgrade your file. You don't need to comply with MTD regulation.
2. If you are using QBD 2021, consider migrating your data to QB Online or another cloud based accounting app. You can buy a 3rd party conversion service and you may ask to migrate data with some data types (e.g attachments, purchase order, estimate, etc).
3. Switch to QBD US version and you can still buy the one time license for QBD 2021 US version. You have to buy a 3rd party conversion service.
