Migration Overview
Keeping your existing transaction history is important. If you already use a different app, you probably want to migrate it over into Actual.
Right now, only YNAB4 is officially supported. However, the API allows anyone to write a custom importer. We will work with the community to help write other importers soon.
Migration from YNAB
Migration from the old Actual Budget Desktop App
Are you coming from the original, managed Actual subscription service? That used an older desktop app version,
which doesn't have the export button. You can also create an equivalent zip archive of your budget folder.
The folder is at ~/Documents/Actual/My-Budget-abc123 by default on macOS and Linux. The the resulting zip file
can be imported into Actual via the Web app.
See Restoring how to restore that data in the new open source version.