Tennessen Accounting & Tax Service is open for lobby pick-up and drop off Monday thru Thursday. We are available by phone Monday thru Thursday 10:00 to 3:00pm.   Please email admin@tennessen.net for general questions & inquiries or call our office at 414.964.6550.  You must call or email ahead to schedule a drop off or pick up.  Our front door will be locked, so please use the doorbell if you need assistance.  Also, please note that we have a mail slot in our front door that may be used at ANYTIME  for contactless drop off.

Anyone entering the lobby will be required to wear a face mask per local ordinance.

We are an Accredited Business of the Better Business Bureau. Click the link below to verify our reliability report.


-All clients must have ALL of their documents IN our office by April 15th to be done by the new deadline of May 17th.  Any returns brought in AFTER April 15th will automatically be filed under extension.  Please call our office if you have any questions.

-The IRS & State of Wisconsin have extended the deadline to May 17th without filing an extension.

-April 15th is STILL the due date for ALL OTHER RETURNS (corps, estates, trusts).  All payments for those returns are still due April 15th.

-April 15th is STILL the due date for 2021 estimated tax payments for federal and Wisconsin.

-If CURRENT clients would like to file an extension, please call our office.  You do need to speak to someone at the office, you cannot leave a message on our voicemail or send an email as a request.

Please see our Privacy Policy on our firm profile page.

Phone : 414.964.6550

We have been serving the North Shore area since 1968. Located on the east side of Milwaukee in a historic 1920’s building we pride ourselves in tradition and being a small business. Our friendly staff and tax professionals are here to assist you in the task of your personal or business tax affairs.

Please call or email our office or visit the Tennessen Forms tab to access the various forms we will need completed in order to prepare your tax return.  Our preparation fee is not due until the return is complete and picked up.  We accept all major credit cards as well as cash or check.  We do not deduct our fee from your refunds.  We are an authorized IRS e-file provider and are required to file all individual and most business income tax returns electronically.

If you have not taken advantage of our referral program, please do so this year!  We are here to serve you and your neighbors, colleagues, friends and family. If you refer someone, you will receive $75 off of your tax prep free and the new client will receive a one-time discount of $50. This is only for new clients referred and is available after their return is paid for.  We have determined that our biggest competition is the taxpayer who chooses to do their own return.  As we prepare over 1,200 returns annually, you can be assured that we will not miss a deduction or credit that you are entitled to.

NEW CLIENTS:  Due to the limitations surrounding COVID-19, we are not accepting walk-ins this year.  We ask that you call or email our office to set up a phone consultation with a tax preparer to see if we are a good fit in assisting you with your tax needs.

Please feel free to contact Tennessen Accounting’s staff with any questions or comments you may have – we’d love to hear from you. We pride ourselves on being responsive to our clients’ inquiries and suggestions.


Fax: 414.964.6559

Phone: 414.964.6550

Email: admin@tennessen.net