About Us

Our Locations


Nestled in the Fox Valley, Greenville is a thriving community that welcomes new vision. Businesses make their home in Greenville every year, whether it’s a new plant or a retail location. Your business is an important part of this growth. That is why you should entrust your tax preparation and small business accounting with us. Our certified public accountants and tax preparers are ready to handle every accounting need, from business tax filing, to payroll, to business financial planning and quarterly reports. We are the local experts.


Resting on the shores of Lake Michigan, Sheboygan has long been a tourist destination for Wisconsin residents. However, it is also the location of major economic growth and development. Konkel Accounting was fortunate enough to expand to the Sheboygan this past year. It may be a new location, but the service is as professional and personalized as ever. The expertise and knowledge of taxes and accounting can be found at the Sheboygan location as well as Greenville.

About Mark Konkel:Mark standing blue tie white shirt 289

I’m a Certified Public Accountant (CPA), with 25 years of tax experience.   A member of the American Institute of CPAs, the Wisconsin Institute of CPAs, and the National Association of Tax Professionals (NATP), I also am a member of the Board of Directors of the Wisconsin Chapter of NATP.

I’m in the tax preparation business because I hate to see the government take away money that you worked so hard for.  It’s your money—I want you to keep it.  Everyone in my office will do their level best to reduce your tax as much as it legally can be.

Confiding in a tax preparer can be stressful, so we offer a friendly, relaxed service with deep technical knowledge of tax law.