CSLB Law & Business ExamBusiness FinancesMedium
A sole proprietor contractor deposits customer payments directly into a personal checking account that is also used for household expenses. What is the primary business risk of this practice?
- AIt converts the business into a corporation for liability purposes
- BIt eliminates the need to file quarterly estimated taxes
- CIt automatically triggers a CSLB license suspension
- DIt makes it difficult to track business cash flow and substantiate tax deductions
Show answer & explanationAnswer & explanation
Correct answer: D. It makes it difficult to track business cash flow and substantiate tax deductions
Commingling personal and business funds makes it hard to accurately track income, expenses, and deductions, and can create problems if the IRS audits the business. Best practice is to maintain a separate business bank account.
Why the other options are wrong
- A. Business structure (sole proprietorship vs. corporation) is a legal designation, not determined by bank account use.
- B. Estimated tax obligations are unrelated to which account funds are deposited into.
- C. Commingling funds is a poor financial practice but does not by itself trigger license suspension.
Commingling of Funds
The practice of mixing personal and business money in the same account, which weakens financial recordkeeping and tax documentation.
- Best practice: maintain a separate business bank account
- Commingling makes it hard to track true profitability
- Weak recordkeeping increases audit risk and complicates deductions
Memory trick: Keep business and personal money in separate lanes to avoid a financial pile-up.