As of December 8, 2014, the Superior Court of California County of San Francisco requires mandatory electronic file and serve of all subsequent documents in Civil and Probate Trust cases. (Code of Civil Procedure section 1010.6,  California Rules of Court 2.253(b)(2) and San Francisco Superior Court Local Rule 2.11.)
Electronically filed subsequent documents subject to the mandatory electronic filing requirements in probate, unlimited civil, limited civil and complex civil actions received electronically by the Court between 12:00 a.m. and 11:59:59 p.m. on a court day shall be deemed filed on that court day, pursuant to San Francisco Superior Court Local Rule 2.10K, on the day that the filing is due, will be considered timely. The document is “filed” at the date and time it is received by the Court and the confirmation of receipt is created. Any electronically filed document received by the Court on a non-court day shall be deemed filed on the next court day. Any document that is electronically filed must be processed and satisfy all other legal filing requirements to be filed as an official record.  
If you have a Court related e-filing inquiry please contact the E-filing Hotline at (415) 551-3824.
Select one of the following case types for a list of court approved Electronic Filing Service Providers to electronically file (eFile) your civil documents: