Bookkeeping
Seven bookkeeping mistakes that cost business owners time and money
The most common bookkeeping mistakes we see — from mixing personal expenses to skipping reconciliations — and how to fix each one.
Alec Albanna, CPA5 min read
Bookkeeping problems rarely announce themselves. They build quietly until tax season, a loan application, or a cash crunch forces someone to look closely. These are the mistakes that come up most often — and none of them is hard to fix once you know to look.
1. Mixing business and personal spending
Personal purchases on the business card (or the reverse) turn every month-end into detective work. Use separate accounts, and when something crosses over, record it properly as an owner draw or a reimbursement.
2. Not reconciling accounts
Bank feeds are convenient, but they aren’t reconciliation. Reconciling each bank, credit card, and loan account to its statement every month is how duplicates, missing transactions, and errors get caught while they’re still easy to fix.
3. Letting the “uncategorized” account grow
Every transaction parked in “Ask my accountant” or “Uncategorized” is a decision deferred. A few is normal. Hundreds means your reports aren’t telling you much.
4. Treating loan payments as expenses
Only the interest portion of a loan payment is an expense. The principal reduces the loan balance. Recording the full payment as an expense understates profit and leaves the loan balance wrong on the balance sheet.
5. Expensing large purchases that should be capitalized
Equipment, vehicles, and other long-lived assets generally belong on the balance sheet and are depreciated, even when tax rules allow a large deduction in the first year. Recording them correctly keeps financial statements accurate and gives your CPA what they need to choose the right tax treatment.
6. Ignoring contractor paperwork
If you pay independent contractors, collect a W-9 before the first payment and track what you pay them. Chasing W-9s in January, when 1099s are due, is stressful and easy to avoid.
7. Only looking at the books once a year
Books that are only updated for the tax return can’t help you run the business. A monthly review — even a short one — turns bookkeeping from a compliance chore into a tool. (If profit and cash don’t seem to match, our article on cash flow vs. profit explains why.)
Already behind?
That’s more common than you’d think, and it’s fixable. Catch-up and cleanup work brings the books to a reliable starting point so you can move forward with numbers you trust. Learn more about our bookkeeping services.