Write-off
Write-off is a tax concept relevant to M&A transaction structuring — how it applies affects a seller's after-tax proceeds and a buyer's cost basis.
Full Definition
A write-off is the complete removal of an asset from the balance sheet because it is deemed to have no remaining recoverable value. Unlike a write-down or impairment (which reduces the carrying value to a new, still-positive number), a write-off sets the asset value to zero, recognizing a total loss. Write-offs are recorded as expenses on the income statement, reducing earnings in the period of recognition. Common examples: writing off an uncollectable receivable, writing off obsolete inventory that has no liquidation value, or writing off a fully impaired intangible asset.
In M&A, write-offs are significant in several contexts. First, in due diligence: identifying assets on the target's balance sheet that should have been written off but have not been — overstated receivables, obsolete inventory, and impaired equipment — reveals that the target's true asset value is lower than its book value, affecting purchase price allocation and potentially the price itself. Second, in post-close integration: a new owner conducting a thorough asset review often discovers items that require immediate write-off, creating large losses in the first full year of ownership.
Write-offs also appear in the context of loan write-offs by lenders: when a lender determines that a borrower's debt is unrecoverable (in bankruptcy or extended default), the lender writes off the loan on its books. For the borrower, a debt write-off does not eliminate the obligation legally — the borrower still owes the debt unless forgiven through a formal debt forgiveness agreement. Forgiven debt creates taxable income for the borrower under IRC Section 61 unless specific insolvency exclusions apply.
From an operational perspective, consistent write-offs in a business's financials are a warning sign. A company that routinely writes off 3–5% of its receivables has a collections problem; one that frequently writes off inventory has demand forecasting or obsolescence issues. These operational patterns reduce the quality of reported earnings and signal management execution challenges.
Seller vs. Buyer Perspective
Before bringing your business to market, clean up your balance sheet. Receivables that have been outstanding for more than 180 days with no reasonable expectation of collection should be written off rather than carried as assets — buyers will discount them anyway, and carrying them overstates your working capital. Similarly, obsolete inventory should be written down or written off before a buyer's appraisal reveals inflated inventory values.
Proactively taking write-offs before the sale process signals honest accounting to buyers and reduces post-close adjustment disputes.
Scrutinize the quality of the target's balance sheet assets, not just their book value. Request an aged receivables schedule and identify any receivables that are unlikely to be collected. Request an inventory analysis that separates fast-moving inventory from slow-moving and potentially obsolete inventory. Write-off risk in these assets should be reflected either in purchase price or in working capital target negotiations.
Real-World Example
A buyer of a B2B services company discovered during diligence that $320K of accounts receivable had been outstanding for more than 12 months — most from a customer that had gone out of business 18 months earlier. These receivables were fully collectible on the seller's books at face value. The buyer required the seller to write off $270K before close (recognizing the loss in the final income statement prior to closing) and negotiated a $50K working capital adjustment for the remaining impaired receivables. The purchase price was unchanged, but the working capital target was reduced to reflect the true receivable quality.
Why It Matters & Common Pitfalls
- !Overstated receivables at close. Sellers who carry impaired receivables at full value inflate working capital and receive a higher purchase price at close. Buyers who do not examine aged receivable detail are paying for assets that will require write-off in the first months of ownership.
- !Inventory obsolescence blindness. Specialty inventory with limited resale markets can sit on the books for years at cost without a write-down, even as it becomes unmarketable. Physical inventory audits and aged inventory reports are essential diligence tools.
- !Debt write-off tax consequences. When a lender writes off debt and later forgives it formally, the borrower recognizes cancellation of indebtedness income. This is taxable unless the insolvency exception or bankruptcy exclusion under IRC Section 108 applies. Model the tax consequences before accepting debt forgiveness.
- !Write-offs masking operations. Consistent, recurring write-offs of the same asset classes each year may indicate systemic operational issues rather than one-time events. Normalize write-offs in your analysis of the target's true EBITDA — if $150K of write-offs occur every year, they are not extraordinary items.
Frequently Asked Questions
What is Write-off in M&A?↓
When does Write-off come up in a business sale?↓
Related Terms
338(h)(10) Election
A joint tax election that lets a stock sale be treated as an asset sale for federal tax purposes, giving the buyer a stepped-up tax basis in the company's assets while the seller recognizes gain as if assets were sold.
Capital Gains (Short vs Long Term)
The tax treatment of gain from selling a capital asset (like a business). Long-term capital gains (asset held >1 year) are taxed at preferential federal rates (typically 20%); short-term gains and ordinary income can be taxed at up to 37%.
Purchase Price Allocation
The allocation of total purchase price across asset categories (inventory, equipment, real estate, goodwill, etc.) for tax purposes under IRC Section 1060 — affecting seller's tax treatment and buyer's future depreciation deductions.
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Disclaimer: The information provided on this page is for educational and informational purposes only. It should not be considered financial, legal, or investment advice. Business valuations depend on many factors specific to each situation. Always consult with qualified professionals — including business brokers, CPAs, and M&A attorneys — before making acquisition or sale decisions. LegacyVector is not a licensed broker, financial advisor, or attorney. Data shown may be based on limited samples and may not reflect current market conditions.
LegacyVector Research Team
Reviewed by M&A professionals · Updated April 2026