Key takeaways
- Cash-basis accounting does not reflect GAAP — PE buyers and their lenders require accrual-basis (GAAP) financial statements for diligence.
- Converting from cash to accrual basis typically takes 3–6 months and costs $15K–$60K depending on business complexity.
- The conversion often surfaces EBITDA-impacting adjustments: accrued liabilities, unbilled revenue, prepaid expenses, and deferred revenue.
- Buyers who receive unconverted financials apply a discount for uncertainty — effectively pricing in conversion risk through a lower multiple or a larger quality-of-earnings adjustment.
- Companies should complete the conversion and have 2–3 years of accrual-basis financials before launching a sale process.
In this article
60%
Lower middle market companies on cash-basis accounting
3–6 months
Typical cash-to-accrual conversion timeline
$15K–$60K
Cost of accounting conversion for a $5M–$40M company
2–3 years
Accrual-basis financials needed before a process
Cash-basis accounting records revenue when cash is received and expenses when cash is paid. It is simple, tax-efficient, and works fine for operating a business. It does not work for M&A. PE buyers, their lenders, and their Quality of Earnings firms require GAAP-compliant financial statements — which means accrual-basis accounting, where revenue is recognized when earned and expenses are matched to the period in which they are incurred.
For founders who have run their businesses on cash basis for 10 or 20 years, the conversion is not merely a formatting exercise. It often changes reported EBITDA — sometimes materially. Accrued liabilities that were not on the balance sheet now appear. Revenue that was recognized on receipt may need to be deferred. Prepaid expenses that were expensed immediately need to be capitalized and amortized. The conversion surfaces accounting realities that have been invisible under cash-basis reporting.
What the conversion involves
Converting from cash to accrual basis requires reconstructing the balance sheet and income statement as if the business had always been on accrual accounting. This is done retroactively for the periods that will be presented to buyers — typically the current year-to-date plus the two prior full fiscal years.
The five core conversion adjustments: (1) Accounts receivable — record revenue earned but not yet collected. Under cash basis, if you billed $200K and collected $150K as of December 31, you recorded $150K of revenue. Under accrual, you record $200K and set up a $50K receivable. (2) Accounts payable — record expenses incurred but not yet paid. (3) Accrued liabilities — record obligations that have been incurred but not invoiced (vacation accrual, bonus accrual, warranty reserves). (4) Deferred revenue — if you received cash for services not yet delivered, that cash is a liability under accrual. (5) Prepaid expenses — costs paid in advance that benefit future periods need to be capitalized and amortized.
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The net EBITDA impact of conversion is company-specific. For some businesses, conversion increases reported EBITDA (e.g., a company with significant unbilled receivables and minimal accrued liabilities). For others, it decreases EBITDA (e.g., a business with significant accrued vacation, bonus pools, and deferred revenue). Not knowing which direction conversion will move your EBITDA before a buyer runs their own conversion is a significant process risk.
Common EBITDA impacts from conversion
The most common EBITDA-reducing adjustments that surface during cash-to-accrual conversion include several that catch founders off guard.
Accrued vacation and PTO: Many cash-basis businesses do not formally accrue vacation liability. Under GAAP, if employees have earned vacation time that has not been used, the company owes that obligation. A business with 30 employees averaging $60,000 in salary and 10 days of accrued unused PTO would carry approximately $70,000–$80,000 of vacation liability not reflected on the cash-basis balance sheet.
Accrued bonuses: Year-end bonus pools that are announced in December but paid in January are typically not accrued under cash basis. Under accrual, they are an expense in the year earned. If your 2024 cash-basis EBITDA excludes $150,000 of bonuses paid in January 2025 but earned in 2024, the accrual-basis 2024 EBITDA is $150,000 lower.
The net effect varies. For a services business with significant unbilled work (consulting, professional services, project billing delays), conversion may increase EBITDA by surfacing revenue that had not been recognized under cash basis. For a business with heavy year-end bonuses and significant PTO accruals, conversion reduces EBITDA. Running the conversion 18 months before a process gives you time to understand the impact and potentially structure compensation arrangements to minimize the negative effect.
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The timeline and cost of conversion depend on the complexity of the business, the quality of existing bookkeeping, and the accounting firm engaged.
For a straightforward services business ($5M–$15M revenue, 10–25 employees, QuickBooks or simple accounting system), conversion typically takes 60–90 days and costs $15,000–$30,000. For a more complex business ($15M–$40M revenue, inventory, multiple revenue streams, complex benefit arrangements), conversion takes 4–6 months and costs $30,000–$60,000.
Engage Accounting Firm with M&A Experience
Ideally 18+ months before process start
Conduct a Conversion Readiness Assessment
Review existing books; identify conversion adjustments required
Gather Source Documents
Customer contracts, payroll records, vendor invoices, insurance policies, employee benefit documentation
Reconstruct Balance Sheet
Build opening accrual-basis balance sheet for earliest period presented
Convert Income Statements
Reclassify all revenue and expense items for 2–3 prior years
Build Trial Balance and Supporting Schedules
Auditable workpapers for buyer's QoE firm
Review and Finalize
CPA review; address questions; produce final statements
Integrate with QoE Preparation
Accrual-basis financials are the input to the QoE analysis
The most important sequencing decision: accounting conversion should be completed before the Quality of Earnings analysis. The QoE firm normalizes EBITDA starting from GAAP financials. If the QoE firm receives cash-basis financials, they will perform their own pro forma conversion — which may differ from your version and create disputes. Having your accounting firm complete the conversion first, with supporting workpapers, gives the QoE firm a clean starting point.
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What buyers do when conversion has not been done
A seller who arrives at a process with cash-basis financial statements is not disqualified — but they are disadvantaged. Buyers will take one of three approaches.
First, the buyer's QoE firm performs their own pro forma conversion during diligence. This is time-consuming (it adds 2–4 weeks to diligence) and expensive (the buyer's accounting costs increase). The buyer typically passes that cost and time into their process — either through a longer exclusivity period, a lower offer, or a larger QoE adjustment as insurance against conversion uncertainty.
Second, the buyer requests that the seller complete the conversion before diligence begins — effectively delaying the process by 60–90 days. This is common when the buyer's lender requires audited or reviewed GAAP financials as a condition of debt financing.
Third, the buyer proceeds on a best-efforts basis and applies a discount to EBITDA (typically 5–15%) as insurance against conversion adjustments that surface post-LOI. A 10% discount on $2M of EBITDA at 6x is a $1.2M reduction in enterprise value — far more than the cost of completing the conversion before the process.
The math is straightforward: conversion before the process costs $15K–$60K and takes 3–6 months. Proceeding without conversion costs $500K–$1.5M in effective deal price (through buyer discounts) or adds 2–3 months of delay. The ROI on pre-deal accounting cleanup is among the highest available to sellers.
$30K
Typical conversion cost ($15M–$30M business)
$1.2M
EBITDA discount cost of not converting (10% on $2M EBITDA at 6x)
18 months
Recommended lead time before process
2–3 years
Accrual-basis history buyers typically want to see
FAQ: Cash to accrual conversion for M&A
Frequently asked questions
Can I just present cash-basis financials with a note explaining the differences?
Buyers and their diligence teams will not accept cash-basis financials as a substitute for GAAP statements. The QoE analysis, the debt financing underwriting, and the purchase price mechanics all require GAAP-compliant financials. A note explaining differences does not satisfy these requirements.
Does the conversion affect my taxes?
The accounting conversion for M&A presentation purposes is separate from your tax filing method. You can change your financial reporting to accrual basis without changing your tax filing method. The change in financial reporting does not trigger a change-of-method election for tax purposes unless you also change how you file your tax returns.
What is the difference between a cash-to-accrual conversion and an audit?
A conversion changes the accounting method applied to your financials; it does not add assurance that the numbers are correct. An audit is an independent verification by a CPA firm that the financial statements are fairly presented in accordance with GAAP. Some buyers require audited financials; others accept reviewed statements or accountant-compiled GAAP statements.
How does conversion interact with the working capital peg?
The working capital peg is based on GAAP working capital — which means it includes all the balance sheet items surfaced by the conversion (accounts receivable, accounts payable, accrued liabilities, deferred revenue). If you complete the conversion before LOI, you will know your normalized working capital and can negotiate the peg from an informed position.
What if my business is too small for a full conversion?
Even small businesses ($3M–$8M revenue) that are selling to PE buyers need GAAP-compliant financials. For very small businesses, the conversion is simpler (fewer employees, fewer complex transactions) and less expensive — typically $8K–$20K. The ROI on conversion is even better at smaller deal sizes where a $200K–$400K discount for accounting uncertainty represents a much larger share of total proceeds.
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Disclaimer: Financial figures and case studies in this article are illustrative, based on representative middle market assumptions, and are not guarantees of outcome. Statistical references are drawn from cited third-party research; individual transaction and operational results vary based on business characteristics, market conditions, and deal structure. This content is for informational purposes only and does not constitute legal, financial, or investment advice. Consult qualified advisors for guidance specific to your situation.
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