Deal Closure Checklist
Workflow a corporate development team or transaction-services CPA runs to close an M&A deal — from clearing diligence and funding the wire through HSR, SEC, and state filings into post-close purchase accounting and integration.
Due Diligence Completion
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Sign off on the quality of earnings report
Final QoE from the buy-side accounting firm should reconcile management's adjusted EBITDA to GAAP, identify run-rate adjustments, and quantify net working capital trends. Any unresolved Q-of-E items at this stage typically convert into purchase-price or escrow adjustments rather than deal-killers — flag them in the issues log for legal counsel.
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Resolve open items in the virtual data room
Walk the Intralinks or Datasite request log with deal counsel. Common stragglers: missing W-9s for foreign vendors, unsigned employment agreements for key personnel, state sales-tax registrations in nexus states. Don't sign the closing certificate while the diligence tracker still has open Q&A.
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Bind representations and warranties insurance
Confirm the R&W binder is issued by the underwriter, retention amount matches the purchase agreement, and known-issues exclusions are listed. The binder must be effective at signing — gaps between signing and closing are not covered.
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Confirm all closing conditions are cleared
Walk the conditions-precedent schedule line by line: bring-down certificate, no-MAE certification, third-party consents, payoff letters, and lien releases on UCC-1 filings. Anything still outstanding triggers the escalation step below.
Collects list -
Escalate outstanding conditions to deal counsel
Log each outstanding condition with the responsible party, expected resolution date, and downside if not cleared. Counsel determines whether to seek a waiver, push the closing date, or treat as a post-closing covenant. Do not paper over an unresolved condition with a side letter without partner approval.
Financial Settlements
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Finalize the closing flow of funds memo
Flow of funds ties out to the purchase price calculation in the agreement: base price, working capital adjustment, indebtedness payoff, transaction expenses, escrow deposit, indemnity holdback. Every wire instruction needs ABA + account + reference, confirmed via call-back to a known number — wire-fraud diversion is the single highest-dollar risk on closing day.
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Reconcile working capital to the agreed peg
Estimated closing working capital is computed from the seller's pre-close trial balance using the agreed accounting principles (these are usually a schedule to the purchase agreement, not just GAAP). Differences between estimated and actual drive the post-close true-up — document the methodology so the 90-day true-up doesn't become a dispute.
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Wire the purchase price to the paying agent
Initiate before the Fed wire cut-off (typically 5:00 PM ET, earlier for some banks). Capture the Fed reference number on the confirmation. The paying agent disburses to seller, escrow agent, and payoff lenders per the flow of funds — don't release closing documents from escrow until the agent confirms receipt.
Collects file -
Fund the escrow and indemnity holdbacks
Confirm the escrow agent acknowledges receipt of the indemnification escrow, working-capital adjustment escrow, and any specific-indemnity holdbacks. Release schedules typically run 12–18 months for general indemnification and longer for tax/fundamental reps — calendar each release date in the post-close tracker.
Contractual and Legal Execution
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Collect signatures on the purchase agreement
Counterpart signature pages collected through DocuSign or routed wet-ink for stockholders without electronic signature authority. Confirm signatory has corporate authority — board resolutions and officer certificates are part of the closing binder.
Collects file -
Execute bills of sale, assignments, and IP transfers
Asset deals require bill of sale, assignment and assumption agreement, IP assignments (recordable with USPTO and copyright office), real-estate deeds, and vehicle title transfers. Stock deals are simpler but still need stock powers and updated stock ledgers.
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Confirm third-party consents from landlords and lenders
Most commercial leases, credit agreements, and material customer contracts contain change-of-control clauses. A missed landlord consent means the buyer inherits a defaulted lease the day after closing. Track each consent against the contracts schedule — anti-assignment provisions in customer contracts are the most common unresolved item.
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Update the stock ledger and corporate records
Reflect the transfer in the stock ledger, cap-table software (Carta, Pulley), corporate minute book, and state secretary-of-state records where the entity is registered. For LLCs, file an amended operating agreement member schedule.
Regulatory Compliance and Filings
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Determine HSR notification threshold
The 2024 size-of-transaction threshold is $119.5M, with size-of-person tests below that. Antitrust counsel runs the analysis — calculation includes voting securities, non-corporate interests, and prior acquisitions within 5 years. Misreading the threshold is a $50K-per-day civil penalty.
Collects list -
File HSR notification with the FTC and DOJ
Filing fee scaled by transaction size ($30K to $2.39M). Standard waiting period is 30 days (15 for cash tender offers). Pull-and-refile resets the clock — only do it on counsel's instruction. Second requests blow up the timeline by 6+ months.
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Determine SEC reporting obligations
Public-company acquirers trigger 8-K Item 1.01 (material agreement) and 2.01 (completion of acquisition), plus pro-forma financials under Article 11 of Regulation S-X if the target meets the significance tests. Private deals usually skip this section entirely.
Collects list -
File Form 8-K within four business days
Item 2.01 8-K is due within 4 business days of closing. Audited financials of the target and pro formas are due within 71 calendar days via 8-K/A if the deal is material. Coordinate with the target's auditor early — last-minute PCAOB-compliant audits don't exist.
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File state transfer, bulk-sale, and franchise-tax forms
Bulk-sale notices (where still required — CA, IL, NJ, others) protect the buyer from successor sales-tax liability. Also: state secretary-of-state name changes, foreign-qualification updates, and final/short-period franchise returns in the seller's home state.
Post-Closure Accounting and Communication
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Issue the closing announcement to staff and customers
Internal email and town hall same-day; customer letter and press release per the agreed communications plan. Coordinate timing with HR — no employee should learn about the deal from a customer or LinkedIn post.
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Open the working capital true-up workpaper
Compute closing-date working capital using the same methodology as the estimate. Most agreements give 60–90 days for the buyer to deliver the closing statement, then a 30-day seller objection window. Maintain the supporting trial balance and reconciliations — disputes go to a neutral accounting arbitrator.
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Record opening balance sheet under ASC 805
Engage a valuation specialist for purchase price allocation: tangibles at fair value, identifiable intangibles (customer relationships, tradename, technology, non-competes) by income or cost approach, residual to goodwill. Measurement period is up to 12 months; provisional amounts should be flagged in disclosures.
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Schedule the 90-day integration review
Reviews synergy capture, retention of key employees, customer churn, and integration cost run-rate against the deal model. Surface variances >10% to the deal sponsor — this is the data the next deal's diligence will rely on.
Risk Management and Integration
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Bind the D&O tail and update commercial insurance
Six-year D&O run-off (tail) for the seller's directors and officers is typically a closing condition. Add the acquired entity as a named insured on the buyer's general liability, property, cyber, and EPLI policies — gaps in coverage between closing and renewal are the most common post-close insurance failure.
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Cut over payroll, GL, and bank-feed access
Day-1 systems work: open new payroll account in Gusto/ADP under buyer's FEIN if asset deal, transfer bank signatories, set up bank feeds in QBO or NetSuite, map the target's chart of accounts to the buyer's. Asset deals require new EINs for state withholding in many states — this is often missed and creates a Q1 941 mess.
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Stand up the integration KPI dashboard
Track synergy realization, retention, customer NPS, and integration spend in Fathom or a Power BI dashboard. The CFO presents to the board monthly for the first six months. KPIs lock in early — once a metric is missing for two months, it never comes back.
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