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1604C, 1604E, and Alphalist DeadlinesThe annual information returns and their attachment

January and February belong to the information returns: the year of withholding, reported name by name. The alphalist is the attachment that makes the annual returns mean something.

Last reviewed · Aug 2026Dates on weekends or holidays move to the next working day
The dates
1604C with its alphalist: January 31 · 1604E with its alphalist: March 1
What They Are

The year, name by name

1604C summarizes the year of compensation withholding, employee by employee. 1604E does the same for expanded withholding, payee by payee. Each travels with an alphalist in the prescribed electronic format.

The Format Trap

Validation is the real deadline

Alphalists are submitted electronically in the prescribed data structure and fail on format errors as surely as on lateness. Generating the files from books that carried the detail all year, rather than reconstructing January spreadsheets, is the entire game.

FAQ

Questions people actually search

Kailan ang alphalist?
With the 1604C by January 31 and with the 1604E by March 1.
Paper ba ang submission?
No. Alphalists go through the electronic channels in the prescribed format.
What feeds the alphalist?
Every 1601C and 1601EQ filed during the year, reconciled to the peso.

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