How to Clean Up Messy Books After the Busy Season

Busy season is when the books fall behind. Receipts pile up, the bank feed goes unreviewed, jobs get invoiced late, and personal and business charges end up on the same card. When things slow down, the question is where to start. The order matters: doing the steps out of sequence often means doing them twice.

Step 1: Connect bank and card feeds first

QuickBooks Online bank feeds only reach back a limited time, often around 90 days depending on the bank. Every week you wait pushes more activity past that window, and anything older has to be entered from statements by hand. Connect or reconnect every bank and card account before doing anything else.

Step 2: Start from the last point you can trust

Find the last period where the books were right. Often that's the last period your CPA filed, or the last month where every account was reconciled. Work forward from there. Starting from today and working backward usually means fixing the same transactions more than once.

Step 3: Reconcile each account, month by month

Reconcile every bank, credit card and loan account to its statement, oldest month first. Reconciliation is what proves the books are complete: nothing missing, nothing duplicated. Categorizing transactions without reconciling can leave the books looking finished while they're still wrong.

Step 4: Fix coding and duplicates as you go

While reconciling, correct transactions that were categorized to the wrong account or left uncategorized, and remove duplicates. Duplicates are common after a busy season, especially when a transaction was entered by hand and then came through the bank feed too. For contractors and service companies, this is also when costs should be tied back to the jobs they belong to.

Step 5: Separate personal and business spending

Personal charges on a business account (or business charges on a personal card) should be recorded so they don't distort your expenses. Your CPA can advise on how they should be treated; the bookkeeping job is to make them visible and consistent.

Step 6: Review the balance sheet

Some accounts hide problems even after the bank accounts reconcile. Look at:

• Undeposited funds: a growing balance usually means payments were recorded but never matched to deposits.
• Loan balances: they should match the lender's statement.
• Customer deposits: deposits received before work is done shouldn't sit in income.
• Payroll liabilities: they should clear to zero as taxes are paid.
• Opening balance equity: it should generally be empty once setup is complete.

Step 7: Document what you changed

Keep a short written record of what you found and what you corrected. It makes year-end easier for your CPA and makes the next cleanup (if there is one) faster. If a correction affects a period that has already been filed, flag it and discuss it with your CPA before changing it.

Step 8: Fix what caused the mess

Books usually fall behind for a reason: the chart of accounts doesn't fit the business, job software and QuickBooks don't agree, or nobody closes the books each month. A cleanup that doesn't fix the cause tends to repeat next year. Our earlier post, Your First 3 Steps to Clean Up Your Business Books, covers the first moves in more detail.

When to get help

If the books are several months behind, accounts have never been reconciled, or your CPA is sending back questions you can't answer, a professional cleanup is often faster and cheaper than doing it yourself. Bookkeepers Lane starts every engagement with a free Books Review so you'll know what the cleanup involves before any work begins. Nothing material changes in your books without your authorization.