Accavallo & Company, LLC

5 Common Accounting Mistakes (and How to Avoid Them)

As half of the year has passed us, and summer is approaching, now is the time for you as a business owner to look back and reflect on how your business has done thus far. While reviewing your financial health, it’s crucial to ensure your accounting practices are on point. Many small businesses unintentionally make common accounting mistakes that can lead to headaches down the road. Let’s highlight five frequent pitfalls—and more importantly, how you can avoid them.

  1. Misclassifying Expenses
    One of the most common errors is misclassifying expenses—like recording a personal meal as a business expense or lumping marketing costs in with office supplies. These mistakes can distort your financial reports, making it harder to see how your business is truly performing. Regularly review your chart of accounts, and don’t hesitate to consult your accountant when you’re unsure where to categorize an expense. Investing in accounting software that automatically classifies expenses can also reduce errors and save time.
  2. Missing Tax Deductions
    There are plenty of legitimate deductions available to small businesses—such as home office expenses, vehicle mileage, or professional development costs. Unfortunately, many owners miss these deductions either because they don’t know about them or haven’t kept good enough records to claim them. Be proactive: keep detailed records of potential deductions throughout the year and work with your accountant to ensure you’re maximizing what you can claim come tax time.
  3. Failing to Reconcile Bank Statements
    Reconciling your bank and credit card statements every month is vital. It ensures your books match what’s actually in your bank accounts and helps catch errors or fraudulent charges early. Skipping this step can lead to inaccurate financial statements and potential cash flow problems. Many accounting programs offer automated reconciliation tools—use them to make this a regular part of your monthly routine.
  4. Mixing Personal and Business Finances
    Blurring the line between personal and business expenses is a recipe for confusion—and even legal or tax issues. Using separate bank accounts and credit cards for your business isn’t just best practice; it’s essential for clean, accurate recordkeeping and for maintaining limited liability protections if you’re an LLC or corporation.
  5. Not Keeping Backup Documentation
    It’s easy to lose track of receipts and invoices when you’re busy running a business, but these documents are critical—especially if you’re audited or need to verify an expense later on. Make it a habit to scan and store your records digitally, using secure cloud-based tools to keep everything organized and accessible.

Final Thoughts

By avoiding these five common mistakes, you’ll not only reduce stress at tax time but also make better decisions throughout the year. If you’re not sure where to start, consider reaching out to a trusted accounting professional who can help you clean up your books and set up better systems for the future.

As always, should you require any assistance on your financial matters, our team at Accavallo and Company CPAs is glad to help.

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Sherri Fisher is a Tax Manager at Accavallo & Company, LLC.  Sherri has longstanding expertise in Trust and Estate Taxation, Eldercare, and Estate planning. Sherri appreciates the relationships she has built with estate planning attorneys and advisors, to provide a team approach to assisting her clients. Sherri also has seasoned experience in business and individual taxation and is partial to assisting start-ups in developing overall accounting and operating plans.

Prior to joining Accavallo & Company, LLC, Sherri was a manager in a large firm, servicing high net worth trust clients, business, and personal clients. She was also a Partner in a large bookkeeping firm, which specialized in cloud accounting systems for regional and national companies. Sherri led a team in assisting clients to organize their accounting systems.  She is a graduate of Florida Atlantic University with a B.S. degree in Accounting.    

Sherri’s experience includes working with companies and organizations in a variety of industries including:

  • Investment Trusts

  • DAPT and Family Investment Partnerships

  • Estate and Probate Administration

  • E-Commerce

  • Manufacturing

  • Construction

  • Real Estate Investment

  • Marketing and Service-based industries

In addition to her professional accomplishments, Sherri is an Intuit Advanced Pro Advisor, Intuit Future Firm Advisory Board member, member of the Valley WIN Network, and proudly served as past Connecticut Public School liaison for the Yale Tommy Fund for Childhood Cancer. Sherri enjoys time with her family, Cleveland sports, thrifting and gardening.