Your Bookkeeper Just Quit Mid-Year. Here's the 90-Day Cleanup Playbook.

One version of this story goes like this: a bookkeeper goes silent for a month, the owner finally logs in to investigate, and discovers nothing has been reconciled since spring.

Or the bookkeeper gets fired for cause after the owner notices, say, $12,000 of "miscategorized" expenses or an unreconciled credit card account.

Or the bookkeeper simply moves on, hands over a partially-finished QuickBooks file, and disappears.

In every version, the owner is left with the same question: what do I do now?

This is the 90-day playbook.

Days 1-3: Lock down access immediately

Before anything else, this is non-negotiable.

• Confirm owner access first, then revoke departing-user sessions and access in accounting software, banking, payroll, merchant accounts and payment processors. Rotate any shared credentials and inventory connected applications. Verify legitimate integrations, payroll and scheduled tax deposits still work
• Remove the bookkeeper's user access in your accounting software. Menu paths differ between QuickBooks Online, QuickBooks Desktop and Xero. Accountant users invited through a firm are often managed in a separate section from standard users. Follow the current help article for your product and edition, then confirm the person no longer appears on any user list
• Notify your bank and ask them to remove the bookkeeper from online banking, authorized-user lists and any linked app or data-feed access
• Inventory recurring payments and saved payees. Confirm each is legitimate and owner-approved, transfer control and credentials to the owner, and stop only unauthorized items. Verify payroll, tax deposits and essential services continue on their existing schedules
• Pull a transaction list for the last 90 days from QB and bank, not because you suspect anything, but because you need a clean baseline

If there's any reason to suspect funny business (high-stress departure, defensive behavior, sudden quitting), also:

• Export the audit log or audit trail from your accounting software (its location varies by product and edition). It records changes by user, but what it captures depends on the product and its settings
• Get a forensic snapshot of the QB file before anything else changes

A departure is not evidence of misconduct. Use the same documented handoff and access review for every transition, while preserving audit records.

Days 4-10: Inventory what you actually have

Before you can hire anyone, you need to know what state things are in. Run this checklist yourself or with a trusted advisor:

Banking & cards

• Last successful bank reconciliation date (use the reconciliation history report for your product and edition)
• Last successful credit card reconciliation date
• Number of un-cleared transactions older than 60 days
• Any negative bank or CC balances per books

Revenue

• Last sales tax filing date
• Last sales tax remittance amount
• Are 1099-K / Stripe / Square / Shopify deposits being booked correctly?
• Any uninvoiced work? Any unbilled WIP?

Payroll

• Last payroll run date
• Most recent 941/state filing
• Any payroll tax notices in the mail?
• W-2/1099 readiness for year-end

A/R and A/P

• Aging report run today
• Anything in A/R older than 90 days that's actually collectible?
• Anything in A/P that's overdue?
• Any vendors threatening to pause services?

Reports

• When was the last P&L generated and reviewed?
• When was the last balance sheet generated?
• Does each reconciliation explain the difference between book and statement balances with valid outstanding payments and deposits?

A useful owner question at this stage: has each month actually been closed, or only partly worked? Verify the answer against the reconciliation reports and a close checklist. The point of this checklist is to find out exactly where you stand, not to fix anything yet.

Days 11-30: Hire competently (do not hire desperately)

The biggest mistake at this stage is panic-hiring whoever is available. Ask for a scoped plan and sample deliverables before comparing price or turnaround.

What you actually need depends on the size of the mess:

When interviewing, ask:

1. "Walk me through your monthly close process. What deliverables do I get and when?"
2. "How do you handle a month where the bank doesn't reconcile?"
3. "What's your protocol if you find something that looks like an error from a previous bookkeeper?"
4. "Can I see a sample reconciliation report and a sample close memo?"
5. "What's your turnaround for monthly reports after month-end?"

If they can't answer #4 with examples, they're not really doing what you need.

Days 31-60: Cleanup phase

Once you've hired, the cleanup follows a specific sequence. Don't let your new bookkeeper do this out of order:

1. Reconcile all bank and CC accounts in chronological order from the last clean rec forward
2. Investigate uncleared items older than 60 days. Classify each one as a duplicate, a posting error, a timing item or a genuinely outstanding payment before clearing or voiding anything
3. Bridge revenue, receivables and cash. For an accrual-basis invoice ledger, reconcile opening A/R + invoices - applied receipts - credits and write-offs = closing A/R. Investigate cutoff and unbilled revenue separately. Keep non-revenue deposits (loan proceeds, owner contributions, transfers and sales tax) out of sales. Reconcile processor gross sales, fees and settlement deposits rather than treating net deposits as revenue
4. Verify expenses match credit card and bank withdrawals + bills
5. Reconcile loans to lender statements
6. Reconcile payroll to payroll provider reports and 941s
7. Reconcile sales tax to filings and check for under-remittance
8. Generate clean P&L and balance sheet
9. Compare to prior period, does anything look impossibly different?

Illustrative planning assumption, not a measured market figure: if a 6-month cleanup of a $1-3M services business takes 30-60 hours at $75-150/hour, the cost range is $2,250 (30 hours x $75) to $9,000 (60 hours x $150). Actual hours depend on transaction volume, account count and what the cleanup uncovers, so ask for a scoped estimate.

Days 61-90: Build the discipline that prevents recurrence

This is the hardest part, and the most important. The goal isn't to clean up. It's to never need to clean up again.

Monthly close calendar

By day 90, you should have a written monthly close calendar. One illustrative schedule:

• Day 1-5 of new month: Vendor bills posted, payroll booked, all bank/CC feeds caught up
• Day 6-10: Bank/CC reconciliations completed
• Day 11-15: Revenue review, A/R aging review, accruals booked
• Day 16-20: P&L and balance sheet reviewed by owner with bookkeeper
• Day 21-25: Close memo written, prior month formally closed in software

Three monthly artifacts (non-negotiable)

Every month, you should receive:

1. Bank reconciliation reports for cash and credit-card accounts, plus loan rollforwards tied to lender statements
2. A management P&L and balance sheet with prior-period comparison
3. A close memo noting unusual items, accruals, or things to watch

If your bookkeeper doesn't produce these, problems can build up unnoticed until the next crisis.

Monthly owner review

Block 60 minutes per month with your bookkeeper and look at the three artifacts together. Ask:

• "What's the cash balance? Why did it change?"
• "What's the biggest expense category change vs. last month?"
• "Is there anything I should be worried about?"

This 60 minutes per month is what catches problems while they're small.

When the cleanup reveals something worse

Sometimes, not always, but sometimes, the cleanup reveals that the previous bookkeeper was actively wrong, not just behind. Or worse: actively dishonest.

Red flags that turn up during cleanup:

• Personal expenses booked to business accounts that the owner didn't authorize
• Vendor payments to entities the owner doesn't recognize
• Duplicate payments (vendor paid twice in the same month)
• Adjustments to revenue or expenses with no documentation
• Voids of legitimate bills with no reason
• Wire transfers outside normal vendor payment patterns

If any of these surface, preserve the records and involve qualified forensic or legal help before changing suspect entries. Keep authorized payroll, statutory filings and essential payments running; coordinate those workstreams separately from the investigation. We've covered the bookkeeper fraud red flags in depth elsewhere.

When to bring in a fractional CFO during this transition

A fractional CFO isn't just for clean ongoing operations, there are specific transition moments where the CFO oversight is worth more than its cost:

• The cleanup reveals 6+ months of accumulated error
• You're not sure you can trust the new bookkeeper to do this right
• The cleanup needs to coordinate with tax filings, sales tax cleanup, and payroll cleanup all at once
• There's a current cash crunch that needs forecasting in parallel with the cleanup

Level offers paired CFO and bookkeeping support for businesses coming off a bad bookkeeping situation. What is included depends on the signed engagement scope; entry-level bookkeeping alone does not include CFO oversight. The CFO sets the cleanup standard, oversees the bookkeeper, and runs the monthly review with the owner. Once it's stable, the CFO time can scale back.

FAQ

Should I sue the previous bookkeeper? Maybe. If you can show actual damages (penalties paid, fees for cleanup, lost business) and there's a written engagement agreement, small claims court (within your state's dollar limit, which varies by state) or civil court may be an option. For suspected fraud, criminal referral may apply. Talk to an attorney before sending a demand letter. Weigh likely legal costs and the realistic chance of collecting against the amount at stake, and check whether your business insurance includes employee dishonesty or crime coverage.

How fast can I get current? As an illustrative planning assumption rather than a measured benchmark, a 3-6 month gap with normal complexity might take 4-8 weeks. Longer gaps or more complex businesses (multi-entity, multi-state, inventory) might take 8-16 weeks. Ask any provider to base its timeline on your account count and transaction volume. Anyone promising "we'll be current in a week" for a 6-month-behind business is overpromising.

Should I switch off QuickBooks during this transition? No. Don't change two things at once. Get current first, then evaluate if QB is still the right tool. If you do need to migrate (we've written about when to outgrow QuickBooks), do it after the cleanup, not during.

What if I can't afford cleanup right now? The cleanup gets more expensive the longer you wait. If cash is tight, check upcoming payroll and tax-deposit deadlines and any active notices immediately, then establish bank reconciliations and reliable account balances. Address payroll and sales-tax filing gaps with the responsible provider, then review A/R aging. The day ranges in this article do not defer a statutory deadline. You can phase the cleanup over 60-90 days to spread fees.

Related reading:

• Year-End Is in 7 Weeks. Your Last Bank Rec Was in February.
• Bookkeeper Fraud: 17 Red Flags and a Monthly Control Checklist
• Do You Need a Bookkeeper, Accountant, or CFO?