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

The pattern is depressingly common: 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 — the owner finally noticed the $12,000 of "miscategorized" expenses or the 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.

• Change all passwords to accounting software, banking, payroll, merchant accounts, payment processors
• Remove the bookkeeper's user access in QuickBooks/Xero (Settings → Manage Users → Remove)
• Notify your bank and ask them to flush out any saved/auto access
• Cancel any auto-pay arrangements the bookkeeper had visibility to
• 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:

• Pull the audit log from QuickBooks (Settings → Audit Log) — it shows every change made by every user
• Get a forensic snapshot of the QB file before anything else changes

Not all bookkeepers steal. Most don't. But the time to assume good faith is before a problem appears, not after.

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 (in QuickBooks: Banking → Reconcile → History)
• 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 the bank balance per books equal the bank balance per statement?

"I'm not confident I've 'closed the books' all the way." — bookkeeper, r/Bookkeeping

If you're not confident either, you're in good company. 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. Cheap or fast usually means worse.

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 — most are duplicates or errors
3. Verify revenue matches deposits + invoiced/billed amounts
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?

For a 6-month cleanup of a $1-3M services business, expect 30-60 hours of work at $75-150/hour = $2,250-$9,000.

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 the end of day 60, you should have a written monthly close calendar:

• 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 (PDF) for every cash, credit, and loan account
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, you'll be back here in 18 months.

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, stop the cleanup, preserve the data, and engage a forensic accountant. 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 does this regularly — paired CFO + bookkeeping for businesses coming off a bad bookkeeping situation. 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 or civil court is an option for amounts under $10K. For larger fraud cases, criminal referral may apply. Talk to an attorney before sending the threat letter — collection from a former bookkeeper is rarely worth it.

How fast can I get current? For a 3-6 month gap with normal complexity, 4-8 weeks is realistic. Longer gaps or more complex businesses (multi-entity, multi-state, inventory) take 8-16 weeks. 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, prioritize: bank reconciliation first (the foundation), sales tax second (penalties grow fast), payroll third, A/R aging fourth. 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 the Checklist That Caught $400K of Theft
• Do You Need a Bookkeeper, Accountant, or CFO?