2 copies on long bond (us folio, 8.5in x 13in) paper (portrait orientation)
No submission to BIR, instead given to each service or rent provider.
Keep one copy for your own records.
No payment due.
January 20th, April 20th, July 20th, October 20th (20 days after the end of the quarter — If this day is a Saturday, Sunday or holiday, it must be submitted by the first working day AFTER.) or upon the request of the payee.
Give a copy to each company that you withheld taxes from. E.g. landlord rental, accountant, other professional services, etc.