DIRECT ANSWER
What tax records belong in an M&A due-diligence file?
Begin tax diligence by defining the parties, entities, ownership, jurisdictions, proposed stock or asset structure, diligence period, signing and closing timeline, adviser responsibilities, and available tax records. Then reconcile federal, state, payroll, sales-tax, information-return, tax-account, basis, attribute, method, and notice facts to the deal model and purchase agreement issues handled by counsel.
Who should use this checklist
Use it to organize tax information for a proposed or completed business acquisition, sale, merger, equity transfer, asset purchase, or deemed-asset transaction.
The checklist is not legal diligence, a quality-of-earnings report, a valuation, an audit, or assurance, and it does not replace the transaction team's workplan.
- Buyers and sellers preparing for tax diligence and structure modeling
- Owners and management assembling tax-data-room records
- Legal, tax, valuation, quality-of-earnings, lender, and integration teams coordinating distinct responsibilities
- Post-closing teams assigning returns, elections, methods, tax accounts, and owner reporting
Transaction, entity, owner, and jurisdiction facts
- Buyer, seller, target, owners, related parties, legal entities, tax classifications, and ownership chart
- Proposed stock, equity, asset, merger, redemption, rollover, or deemed-asset structure
- Letter of intent, timeline, signing, closing, escrow, earnout, rollover, financing, and working-capital terms supplied through counsel
- Federal, state, local, and foreign jurisdictions and tax registrations
- Legal, tax, finance, valuation, quality-of-earnings, lender, and integration contacts and responsibility matrix
Income and information tax returns
- Federal and state income, franchise, gross-receipts, withholding, and information returns for accepted periods
- Extensions, estimated payments, refunds, carryforwards, elections, amended returns, and statute information
- Owner, partner, shareholder, beneficiary, foreign, and information-return schedules
- Tax notices, examinations, appeals, settlements, closing agreements, liens, payment plans, and uncertain positions
- Unfiled jurisdictions, late filings, missing records, inconsistent positions, and return-to-book differences
Payroll, sales tax, and state compliance
- Payroll tax registrations, Forms 941 and 940, Forms W-2 and W-3, state filings, deposits, and payroll-provider reports
- Worker classification, owner compensation, benefits, equity compensation, notices, and corrections for tax coordination
- Sales-tax permits, nexus studies, marketplace activity, returns, exemption certificates, notices, audits, and voluntary disclosures
- State income, franchise, gross-receipts, property, unclaimed-property, and local registrations or filings
- Entity qualification, licenses, legal compliance, and employment-law issues assigned to qualified counsel or other specialists
Books, basis, attributes, methods, and transaction costs
- Trial balances, tax accounts, book-to-tax schedules, fixed assets, depreciation, inventory, and accounting methods
- Inside and outside basis, tax capital, debt, owner accounts, earnings and profits, and tax-attribute schedules
- Net operating losses, credits, interest limitations, passive losses, Section 174 amounts, and limitation histories
- Transaction-cost invoices, capitalization analysis, success-based fees, financing costs, and legal or advisory categories
- Forms 3115, Sections 338 or 336(e) elections, Section 754 elections, and other method or transaction elections when relevant
Purchase-price allocation and valuation coordination
- Total consideration, assumed liabilities, contingent amounts, rollover equity, escrow, earnout, and later adjustments
- Asset inventory, classes, tax basis, fair-value inputs, goodwill, going-concern value, covenants, and other intangibles
- Form 8594 responsibilities and buyer-seller consistency questions
- Independent valuation professional, report scope, effective date, assumptions, and unresolved data needs
- Tax effects of the supported allocation for depreciation, amortization, gain, loss, and state reporting
Quality-of-earnings and post-closing boundaries
- Tax coordination may provide tax-return, tax-account, payroll, sales-tax, nexus, and tax-risk inputs to a separate quality-of-earnings engagement
- Tavella CPA Group does not issue an independent quality-of-earnings report, adjusted EBITDA conclusion, audit opinion, or assurance conclusion through this service
- A qualified independent valuation professional owns valuation conclusions
- Legal counsel owns legal diligence, agreements, indemnities, representations, covenants, disclosure schedules, and legal opinions
- Post-closing responsibility must be assigned for returns, elections, notices, tax accounts, methods, records, integrations, and owner reporting
PRINTABLE ORGANIZER
M&A tax due-diligence worksheet
Use this worksheet to assign and track records. Exchange confidential deal documents only through an approved secure data room or client workflow.
Structure and advisers
- Parties, entities, owners, jurisdictions, proposed structure, timeline, and responsibility matrix are documented
- Legal, tax, valuation, quality-of-earnings, lender, and integration roles are assigned
- Transaction documents and tax provisions are available through the secure deal process
Tax compliance and risks
- Income, franchise, payroll, sales-tax, information, owner, and state filings are collected
- Notices, audits, unfiled jurisdictions, nexus, payments, attributes, elections, and methods are listed
- Books, tax accounts, fixed assets, basis, capital, debt, and transaction costs are reconciled
Allocation and closing
- Consideration, liabilities, contingent payments, asset classes, tax basis, and valuation inputs are organized
- Form 8594, election, return, method, state, owner, and record-retention responsibilities are assigned
- Post-closing tax-account, filing, notice, integration, and adviser follow-up items are recorded
This organizer is not legal diligence, a valuation, a quality-of-earnings report, an audit, assurance, investment advice, or a promise of a transaction or tax result.
APPLY THE GUIDE
Related tools and service paths
Accounting methods and Form 3115
Review accepted method-change, Section 481(a), depreciation-correction, and post-closing return implementation work.
QSBS and Section 1202 tax
Coordinate accepted shareholder tax documentation, basis, modeling, and return reporting with counsel and valuation advisers.
PRIMARY GUIDANCE