8 Accounting Mistakes Small Business Owners Make

Allison Dunn

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When your financial records are clear, it’s easier to pay taxes, avoid penalties, minimize waste, maximize monetary resources, and monitor your business’s financial health. Failing to implement good accounting practices can lead to business failures, including bankruptcy.

1. Failing to Keep Books​

Even when entrepreneurs believe their businesses are doing well, this can be a false conclusion if they fail to do bookkeeping.

Every month, you should be aware of how much money has gone into and out of your business that month.

Every payment should be categorized and recorded, no matter how small. With proper bookkeeping, you’ll know which aspects of your business are doing well or poorly. This information will be critical when you’re making projections, choosing what activities to focus on, deciding when to spend money, and cutting costs.

Make it a point to constantly update your financial records and books so you’ll stay ahead of your finances.

2. Not Hiring Accounting Professionals​

One of small business owners’ most common mistakes is trying to perform their accounting tasks by themselves. o make sure your business adheres to all financial regulations, consider the best practices for international monetary activities as well. For expats or those with foreign financial assets, e-filing of FBAR is a smart and secure way to report your foreign bank accounts directly.

This can set your business up to fail. Even experienced accountants and bookkeepers make mistakes, so imagine how many more errors you can make without proper training. Unfortunately, even a few mistakes can cost you more than simply hiring a professional in the first place.  You may decide to hire a CPA or an accountant. There are a few differences between a CPA and an accountant. The main difference is that a CPA will have completed more education, and is therefore able to sign off on audited financial statements.

You should also consider the opportunity cost of your time. It’s easy to procrastinate if you don’t enjoy accounting. Even if you are diligent, could your time be better spent doing other activities in your business?

Paying vendors on time, balancing bank accounts, and running payroll will be easier with the help of a professional. Whether you hire an in-house accountant or a remote freelancer, make sure to verify their qualifications, certifications, and licenses.

3. Combining Business and Personal Finances​

You can easily mess up your business by commingling – that is, combining your personal and business finances.

To avoid commingling, open a business bank account as soon as you start your business. Process all business income and expenditures through your business account, and reserve your separate personal bank account for your personal transactions. You can even enlist providers like Solution Scout to assist you with your business banking requirements.

There are exceptions to this rule. For instance, if your business is a sole-proprietorship or single-owner LLC, then you will have to comingle in regards to paying taxes. That is because your business income is reported on your personal tax return. If you have access to tax calculators and other tools, then this shouldn’t pose much of a problem. Tax experts can also take the guesswork out of the equation.

In situations where you need to pay cash, be sure to make a note and follow a system established by your bookkeeper.

4. Bad Communication​

Even when you’ve already hired the right professionals to delegate accounting tasks, errors and failures can still happen as a result of poor communication.

Meet with your bookkeeper regularly. Many bookkeepers use an association management solution, like Impexium, for easy management and collaboration. When your bookkeeper emails you  with questions or work they need from you, get back to them promptly.

5. Poor Bill Management​

A business can’t operate well without good cash flow.

To improve your bill management, invoice your customers immediately after completing a transaction. When a customer doesn’t pay on time, send follow-up reminders every week or two weeks.

To make invoicing easy, use invoicing software, create an organized system, and delegate invoicing to the right person at your company.

Should the worst happen, and you find yourself in a situation where your debts are too much for you, you can speak to a bankruptcy attorney like the attorneys here, who can help you make a plan to move forwards.

6. Not Budgeting Projects​

A classic entrepreneur mistake is to take on a project without knowing the costs. This is an easy way to spend more money than you can afford, or not charge enough for the work you’re doing.

Always set up a budget before creating a product or preparing a proposal for a client. If you review your past project budgets and compare them to your actual project costs, you can get a good idea of how much you should pad your budgets to help you earn a positive return on any project you’re planning.

It’s a good idea to share a project budget with your full project team so they can allocate time and resources appropriately. Then, as your project progresses, track your spending and take corrective measures as needed.

7. Math and Computation Errors​

7. Math and Computation Errors​

It’s common for even professional bookkeepers to make math mistakes like rounding incorrectly or entering figures in the wrong places. Quality accounting software can help you minimize errors. You can also hire an auditor to conduct brief checkups on your books and financial records.

8. Losing Important Receipts​

Expenses you incur as a small business owner can be deducted on your taxes. Such expenditures should have separate receipts, which you need to keep and record in your books. Without a receipt, it can be difficult to back up your tax deduction claims.

Unfortunately, receipts are easy to lose. One effective way to keep track of every transaction without the fear of losing any is by using a simple receipt generator. This not only ensures all your tax deduction claims are organized but also digitally secured.

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Why is it important to avoid commingling personal and business finances?

Keeping personal and business finances separate ensures accurate bookkeeping and makes tax preparation easier. It also helps you track the profitability of your business and avoid legal or tax complications. Always use a dedicated business bank account for all business transactions.

Look for software that fits your business size, industry, and specific needs, such as invoicing, payroll, or expense tracking. Popular options include QuickBooks, Xero, and Wave. Test trial versions to see which one is user-friendly for you and integrates well with your processes.

You should consider hiring an accountant as soon as managing your financial records feels overwhelming or your business grows beyond basic bookkeeping. A CPA is especially valuable during tax season, for auditing, or if you face complex financial regulations.

Using digital tools like Expensify, Dext, or QuickBooks can make tracking receipts and expenses seamless. Scan receipts immediately after purchases and store them in cloud-based systems to prevent loss. Regularly review and categorize expenses to stay organized.

Start by invoicing clients immediately after completing transactions and setting clear payment terms. Use software to automate reminders for overdue payments. Regularly review your income and expenses to identify patterns and address cash flow gaps proactively.

Picture of Allison Dunn
Allison Dunn

Allison Dunn spent 25 years as an owner and executive of several businesses, including an engineering firm, manufacturing company, and architectural firm. In 2013, Allison founded Idaho’s top-ranked business coaching company, Deliberate Directions.

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