Sonoma County - District 10

The AARP Foundation's Tax-Aide program does tax return preparation, including electronic filing, at no cost to taxpayers. Though the focus is low-to-moderate income households headed by someone 50 years and older, there is neither an age limit nor an income cap. If you're under 50, you're still very welcome to use Tax-Aide services. AARP membership is not required.



Interested in volunteering, or getting more information about volunteering? Information specific to the program in Sonoma County is here (PDF).


To start the process of becoming a volunteer, first create a login at, which will gather some basic information (if you don't already have a login there); then go here, log in if necessary, and complete and submit the application.


The district's summer-fall tax clinic ended on October 14th. To get the California stimulus payment, normally $600, you had to file your 2020 California tax return by October 15, 2021.


We expect our regular tax season to begin again on February 1, 2022, at seven to ten sites in Sonoma County. Until then, we're available by phone or email (see below) for assistance, but are not available for face-to-face consultations or for tax preparation.

We will start accepting requests for appointments at our sites approximately mid-January. For the 2022 tax season, we will not accept walk-ins at any site (this is new). You must have an appointment in order to use our service. We will post phone numbers for our sites on this page in mid-January. 

If you need a tax return prepared between now and February 1, the only (relatively) local option that we are aware of for free tax preparation is with a different organization, Tax Aid, which is headquartered in downtown San Francisco. Your total annual income must be less than $57,000.


You can, however, file, online, at no cost, a "no taxable income" federal return, in order to claim Advance Child Tax Credit, or a missing federal stimulus payment. To do so, go here.


Our district phone number is 707-327-2401. Please call that number if you have a question about our program in general, or a question about a tax return that you filed, or about a letter you received from the IRS or California Franchise Tax Board, or about a specific tax question you have (for example, an inheritance).


You can also email us, at, with questions.


Last updated: November 14, 2021.  Comments and corrections? Please leave a message at 707-327-2401, or email us at