The other answers in this list seem to be correct. However, when I tried to download my 2018 data, I got the a screen with the following message: (note.... up to 45 days!!!!!!!!!!!!!)
Data & PrivacyManage your data.
We're getting your data ready to download You’ll get an email once your data is ready. This can take up to 45 days. You can also request to download Intuit data of yours that’s not connected to this account. Check if you have other Intuit data
