We work with you on a personal level to determine the best solutions for your unique needs, then leverage our seasoned expertise to achieve the best possible results.


We are your trusted partner in success. Our firm is large enough to offer a full range of professional services at a fair price, but small enough to give you the individual attention that you deserve.

Staff Profiles

Low_res_IMG_7131James R. (Jim) Jenks, EA

Jim began his career as tax preparer in 1983, coming from a family of tax preparers. Both of Jim’s older brothers started preparing taxes in the 1960’s and his oldest brother is an Enrolled Agent. Both his parents were tax preparers as well as his two eldest sisters. In 2005, Jim took over part of his brother Ken Jenks’ practice when he retired, expanding his practice to over 400 clients.

In September of 2012, Jim completed the requirements to become an Enrolled Agent and in November was issued his EA credential, allowing him to provide greater taxpayer advocacy and the ability to negotiate with the IRS on behalf of his clients.

Jim specializes in tax preparation for individuals and small businesses, including Sole-Proprietorships and passive rentals.

On a personal note, Jim enjoys choral music and has sung professionally with a number of local church choirs and choruses and has performed with choirs throughout Europe, Russia, Mexico and Costa Rica.

Professional Associations:

Mission Society of Enrolled Agents (MSEA)
▸ Member/Associate Member since 2007
▸ Vice-President (2014-15, 2017-18)
▸ Education Committee Chair (2015-present)
▸ Membership Committee Chair (2012-15)

California Society of Enrolled Agents (CSEA)
▸ Member since 2012

National Association of Enrolled Agents (NAEA)
▸ Member since 2012

National Association of Tax Preparers (NATP)
▸ Member since 2011

EA# 106527

Meriel Jenks

Meriel has been with J & M Tax Service since 2006, providing part-time in-office support and return processing. Meriel had her own tax practice for 15 years during the ’70’s through ’90’s, and in 2009, after retiring from her job with a local credit union, completed her re-certification to prepare tax returns. Meriel is also and active member of MSEA as a Professional Associate. Her patience and determination ensure that every client is treated with high regard.

In her spare time, Meriel enjoys crocheting, reading and doting over her grandchildren.

Together, we are committed to providing you with the best possible tax and bookkeeping services possible. We use the latest technologies including top of the line tax software and can use e-file to get your tax refunds processed quickly and easily.

CTEC# A176533 | Merchants Bonding Company # CA759507