Error 8888: Duplicate declaration. Only one normal declaration is allowed.

If you receive the message when filing an information return "Error 8888: Duplicate declaration. Only one normal declaration is allowed.Consult this information.

NOTE: A statement is defined as "normal" if it is neither a substitute nor a complement.

This error occurs when the declarant attempts to submit two "normal" declarations for the same model, year, and period.

Since a regular declaration has already been registered for the same model, year and period, first check if the previously filed declaration is correct.

If you need to correct it, you must submit a substitute declaration.