About Belt Accounting & Tax


We love label makers, color-coded files, and all things organization. Systems and spreadsheets are our friends. And a strategic conversation about your future and your financials is our favorite lunchtime topic. It’s a balanced approach to the big picture things and the ever so important details.

At Belt Accounting & Tax, we’ve designed this “accounting engine” with a focus on access, accuracy and affordability, and of course, saving you time. Whether you are simply seeking a “tax home” or are intrigued about our Flat Rate Small Business Advisory Packages, look to our team as your local partner in accounting and tax.


One thing you will notice about Belt Accounting & Tax is our commitment to the local community. Education, involvement, ongoing partnerships, and relationships are values we are extremely passionate about. You will likely see us out and about at events and programs through the following organizations:

  • Brookfield Chamber of Commerce
  • Delafield Chamber of Commerce
  • Metropolitan Builders Association
  • Pewaukee Chamber of Commerce
  • Waukesha County Business Alliance


Educating Our Team to Better Serve You!

In order to stay informed and educated on current tax laws and accounting practices, our team members are required to receive ongoing training on a wide range of topics. Our team earns a minimum of 40 hours of continuing professional education (CPE) credits each year with the ultimate goal of staying educated on pertinent information and improving our ability to serve you, our client! From the areas of accounting and taxation to business management, administration, and ethics, our team earns continuing professional education credits from the following sources:

  • National Association of Tax Professionals (NATP)
  • Thomas Reuters – Tax Software Training
  • Intuit – QuickBooks Training


Work. Life. Balanced. What does that mean to us? It means that the long hours of tax season are perfectly complemented by the friendships we form with our clients. It means that answering that weekend email is offset by the trust and responsiveness that is built in doing so. It means that we work hard, and then we play hard. That’s what our team is all about. We invite you to get to know more about the Belt Accounting & Tax team, your partners in small business financial success!


Kelli Belt - Owner, Accountant

Kelli has been in the financial services industry for over 10 years, working in public and private accounting. Missing the excitement of business ownership and working with small businesses, she started Belt Accounting & Tax in 2014. Her primary focus areas include business tax preparation, tax planning, and business and tax advising.

Through community involvement, networking, and teaching Kelli goes beyond the norm by connecting with people, building trust, and educating her clients and prospective clients. Kelli is a person who “gets things done” through teamwork, partnerships, and relationships. With a passion and enthusiasm, she loves meeting new people and helping clients succeed in new ways.

In her free time, she enjoys spending time outdoors with her husband and daughter. Whether it’s a trip to the Wisconsin Dells, skiing during the winter, or being out on the boat in the summer, it’s all about relaxing with friends and family.


  • Certified Public Accountant (CPA)
  • QuickBooks Pro Advisor


  • National Association of Tax Professionals (NATP)
  • Metropolitan Builders Association, Associate Advisory Board Member
  • Brookfield Chamber of Commerce


Kari Alonso - Accountant

Kari has been with Belt Accounting & Tax since it was founded in 2014, primarily working with our business clients. She excels at helping business owners create long-term, strategic goals, as well as managing their account reconciliations, payables, receivables, monthly reports, and sales tax reporting. Kari also assists with our personal accounting services, helping families and individuals with tax return preparation, filing, and retirement tax planning.

When Kari isn’t balancing checkbooks or preparing tax returns, she is spending time with her family and tending to her beautiful garden and flower beds.


  • Certified Public Accountant (CPA)
  • QuickBooks ProAdvisors (Online & Desktop)


Sally Gisseler - Accountant

Sally is another original member of our team. She specializes in business accounting, tax, and payroll services. In an advisory role, she helps business owners evaluate, implement, and execute on their strategic plans and financial goals. Sally also assists with our personal accounting services, helping families and individuals with tax return preparation, filing, and retirement tax planning.

Ideal activities for Sally when she’s not working in a spreadsheet or filing payroll is sitting down with a good book, going on a relaxing walk, or just spending time with her friends and family.


  • QuickBooks ProAdvisors (Online & Desktop)


Patti Maynard - Accountant

Patti joined Belt Accounting & Tax in 2014 after working with her daughter Kelli at Maynard & Belt Certified Public Accountants for over six years. Her primary focus with Belt Accounting & Tax is on business and personal tax planning and preparation. She has worked with small and medium-sized business throughout her career and loves interacting with her clients and helping them solve all their tax needs.

In addition to her work with Belt, Patti served as an Accounting Instructor at Waukesha County Technical College for over 25 years and is an active member of the Brookfield Chamber of Commerce.

Outside of work, Patti spends time her time with family and friends and enjoys taking care of her grandkids. In the summer, you can find her on Pewaukee Lake boating, paddle boarding, kayaking, or floating.


  • Certified Public Accountant (CPA)


  • Brookfield Chamber of Commerce


Rustler - Client Greeter

Our friendly Yellow Lab, Rustler has become a favorite employee for many of our clients. His primary responsibilities consist of greeting clients as they walk in the office, helping boost employee morale during the busy tax season, and napping during important client meetings.

When not entertaining clients at the office, Rustler loves visiting doggy daycare, playing fetch with his family, and being on the lake during the summer.


  • Certified Client Greeter


  • American Kennel Club