If you need additional time to file just click on the appropriate extension form below and file it by mail. You must keep in mind that extending your time to file should NOT replace your need to get information to me early on. The additional time should be used to run down details that might not have been available at the regular due date, so the filing can be done in an orderly way. The additional time is NOT meant to be used as a period just to delay the inevitable. Additionally you should have made estimated payments during the year in order to avoid interest accruals, late payment and under payment of estimated tax penalties that will NOT be avoided by extending.
California Extension form 3539 for tax year 2018 is NOT available yet but will be on this page in January of 2019.
Business Extensions Federal
Non Profit Extensions
Business Extensions California
- 2017 Extension Form for CA returns 100, 100S, 199 and 109
- Form 3539 NOT available yet
Personal Extensions Federal