About Us


Mosher Bookkeeping is proud to serve our brave men and women of the military as a veteran-owned business. CEO Katie Mosher is from a multi-generational military family and offers 15% off of bookkeeping and payroll services for all active duty and veteran-owned businesses.

Katie discovered her passion for accounting while working for a high-profile forensic accountant. Thinking of herself as a CSI for books; she loves helping people, whether it be discovering where loved ones want their money to go or looking for criminal activity. This dedication to our clients is the driving force in every aspect of our firm where we use forensic bookkeeping to take seemingly unsolvable problems and organize them into clear and concise reports.

Staying ahead of the curve is a constant challenge in the ever-changing climate of payroll and taxes. As technologies change, we stay on top of the latest and greatest to leverage those most beneficial to you. A great example of one such technology is Knowify - a construction management software that provides the tools to grow your business, whether it's commercial construction, residential contracting, or service work.

With over 27 years of experience, Mosher Bookkeeping wants to be your financial partner so that you can spend more time with your customers and growing your business. 


Katie is an Advanced Certified QuickBooks ProAdvisor and she and her team work with the latest online accounting software. If you are ready to join the digital accounting world, we can help you get there with our specialized tutorials and consulting. We use apps and plugins to customize your books to your individual business's needs.


-Advanced Certified QuickBooks ProAdvisor
-Certified Elite TSheets Pro
-Member of The American Institute of Professional Bookkeepers
-Over twenty years of accounting and bookkeeping experience
-HubDoc Certified Advanced Partner
-Knowify Certified Construction Management Advisor

Privacy and Security

Being fully certified and insured, we take your privacy and security very seriously.   All of your account access is protected behind our secure access portal.  Logins are shared through LastPass to keep your information secure but available to you at all times.  Hubdoc integrations make sharing paperwork as safe, secure, and easy as taking a photo. At Mosher Bookkeeping, we have tried to make our services fit your comfort level by providing virtual meetings, digital files and online trainings!



Peggy has worked as an accountant / full-charge bookkeeper for over forty years within a wide variety of business types, including the hospitality industry, the non-profit sector and various service-based businesses. She does her work with small to medium sized businesses, where the work is most challenging. 


With a BS in accounting and several years of experience in Financial Statement preparation, account reconciliations, and working with various auditors including Public Accountants, NYSE, ASE and CBOT auditors, Kathy brings a vast amount of knowledge to our team. Most recently she passed the IRS Enrolled Agent exam so that she can represent her tax clients before the IRS. Let Kathy undertake your business’s complex tasks to find the best innovative solutions.


Hannah brings a Master's Degree in Accounting to the team and has worked for several large tax firms over her career. She passed her CPA exam in 2019 and has developed a specialty in tax services for small to medium sized businesses. We are excited to add her experience and knowledge of both bookkeeping and tax accounting!


Katie is an Advanced Certified QuickBooks ProAdvisor with over 27 years of experience in bookkeeping and accounting practices. She is a  long time member of The American Institute of Professional Bookkeepers and the Digital Bookkeepers Association. Specializing in forensic accounting and cleanups, Katie has been the local business person of the year for 3 years running. 


Up at 3am and have questions about our business? Not to worry, our Chat Bot is available 24/7! Give it a try!

Need to talk to someone in person, send us a quick message in the contact form. We love to talk about accounting!

Do you just have to get that file sent to us ASAP? Don't fret, you are always able to send files through our secure portal.