1. Mixing personal and business transactions

What it is: Using one bank account or credit card for both personal and business spending.

Why it matters: Blending transactions muddies records, increases audit risk, and makes cash flow unclear.

Quick fix: Open dedicated business accounts and update payment methods in apps and subscriptions.

2. Skipping regular reconciliations

What it is: Waiting months to match bank and credit card statements to the ledger.

Why it matters: Missing reconciliations hide duplicate charges, bank errors, or fraud until it is costly to unwind.

Quick fix: Reconcile weekly or monthly and set recurring reminders in your calendar or bookkeeping software.

3. Inconsistent categorization

What it is: Similar expenses are labeled differently from month to month.

Why it matters: Reports become unreliable, and tax deductions can be missed or questioned.

Quick fix: Create a short chart of accounts and stick to it; document rules for common vendors.

4. Poor documentation of receipts

What it is: Receipts, invoices, and mileage logs are missing or scattered.

Why it matters: Without support, expenses may be disallowed and it is harder to answer vendor or tax questions.

Quick fix: Snap photos and attach them to transactions in your app; store digital copies in a shared folder.

5. Overlooking sales tax and payroll liabilities

What it is: Sales tax, payroll tax, or franchise fees are not tracked as separate liabilities.

Why it matters: Funds can be spent accidentally, leading to penalties or cash crunches when payments are due.

Quick fix: Use liability accounts, run aging reports, and move tax funds to a separate savings account.

6. Misclassifying owner draws and contributions

What it is: Owner withdrawals or personal payments into the business are treated like income or expenses.

Why it matters: Financial statements become misleading, affecting profit decisions and lender conversations.

Quick fix: Post owner-related transactions to equity accounts labeled Draws and Contributions.

7. Ignoring accounts receivable follow-up

What it is: Invoices are sent but not monitored for timely payment.

Why it matters: Cash flow stalls and collections take longer the more time passes.

Quick fix: Send friendly reminders before due dates, automate late notices, and review open invoices weekly.

8. Not backing up or restricting access

What it is: Accounting files are stored on one device or shared broadly without roles or permissions.

Why it matters: Data loss or accidental edits can disrupt operations and delay reporting.

Quick fix: Enable cloud backups, use user roles in your software, and keep an admin log of changes.

Pro tip: A brief quarterly review with a bookkeeper can reveal small issues before they create tax-time stress.