Who files this?
Freelancers and businesses that have transacted with any third party (client or supplier) exceeding €3,005.06 in the calendar year. Exceptions apply: transactions already reported in 303/390 or subject to withholding reported in 111/180 are excluded.
What does it declare?
Informational declaration that cross-references data between payers and recipients. Hacienda uses it to detect inconsistencies. It generates no tax payment.
When is it due?
Throughout February of the year following the tax year.
In Autónomo Simple
The app does not manage Modelo 347 directly. Autónomo Simple exports your income and expense data in CSV/PDF so you can easily identify suppliers and clients that exceed the €3,005 threshold.