What is Bad Debt? B2B Accounts Receivable Definition

Definition

Bad Debt Explained

Bad debt is an accounts receivable balance that a company has determined it will not be able to collect, and therefore removes from its books as a loss. It occurs when a customer is unable or unwilling to pay — due to bankruptcy, financial distress, dispute, or disappearance.

Under GAAP (Generally Accepted Accounting Principles), companies must recognize bad debt either when it occurs (direct write-off method) or proactively by maintaining a bad debt reserve — also called the "allowance for doubtful accounts" — that estimates future uncollectable amounts.

For B2B companies, bad debt is not just an accounting problem — it's a cash flow catastrophe. You've already delivered services, incurred costs, and paid employees to do the work. Bad debt means all of that investment is permanently unrecovered. The most effective bad debt strategy is aggressive early-stage collection before accounts age past 60 days.

Key Points

What You Need to Know About Bad Debt

Bad debt expense vs. bad debt reserve are different things. Expense = actual write-off. Reserve = proactive estimate for future write-offs (allowance for doubtful accounts). Most companies maintain both.
Under GAAP, bad debt is typically estimated as a % of AR. Common approach: 1-5% of current AR, 10-20% of 60-90 day AR, 40-50% of 90+ day AR.
Writing off debt doesn't mean it's forgiven. You can still collect written-off accounts. If you do collect, it's recorded as a bad debt recovery, which increases income.
The 60-day window is critical. Accounts past 90 days overdue are recovered at roughly 50% the rate of accounts addressed within 60 days. Act early.
Bad debt is tax-deductible. Under IRS rules, businesses can deduct bad debts that were previously included in gross income and are now partially or totally worthless.

Bad Debt vs. Reserve

Two Ways to Account for Bad Debt

Direct Write-Off Method

When a specific account is identified as uncollectable, it's written off directly as an expense. Simpler, but not GAAP-compliant for most companies — it understates AR and overstates income during the period before write-off.

Allowance Method (GAAP)

A bad debt reserve is estimated each period based on historical patterns and aging buckets. This "allowance for doubtful accounts" reduces AR to its net realizable value — what you actually expect to collect. Required for GAAP and IFRS reporting.

Example

Bad Debt in Practice: B2B Example

Scenario: Customer Bankruptcy

Situation: A software company delivered $80,000 of custom development work. The client — a retail chain — paid the first two installments of $20,000 each, then filed Chapter 11 bankruptcy with $40,000 still outstanding.

Result: The $40,000 balance is uncollectable (creditors in bankruptcy proceedings rarely receive full payment). The software company writes off $40,000 as bad debt expense.

GAAP journal entry: Debit Bad Debt Expense $40,000 / Credit Accounts Receivable $40,000

Tax implication: The $40,000 loss is deductible in the year the debt is deemed worthless — reducing taxable income and partially offsetting the loss.

Prevention opportunity: In this case, the customer showed payment distress starting at day 45 overdue. Escalating to a formal demand at day 30-45 — before the bankruptcy filing — may have recovered the full balance.

AgentCollect

How AgentCollect Prevents Bad Debt

Stop Bad Debt Before It Forms

The most effective bad debt strategy is aggressive outreach in the 30-60 day overdue window — before accounts age into high-risk territory. AgentCollect AI agents automatically contact overdue accounts within the first week of a missed payment, significantly reducing the percentage of AR that becomes uncollectable.

Clients using AgentCollect typically reduce their bad debt write-offs by 35-50% in the first year, not because of better luck, but because no account is ever left uncontacted. Every past-due invoice gets immediate, persistent follow-up — something no human AR team can match at scale.

Related Terms

Related AR Glossary Terms

FAQ

Bad Debt FAQ

What is the difference between bad debt expense and bad debt reserve?

Bad debt expense is the actual amount written off as uncollectable in a given period. Bad debt reserve (or allowance for doubtful accounts) is a proactive estimate of expected future uncollectable amounts, set aside as a contra-asset account to reduce reported AR to its net realizable value.

Can bad debt be recovered after it's been written off?

Yes. Written-off debt can still be collected. If payment is received after a write-off, it is recorded as a recovery — reversing the write-off and recognizing income. Many companies recover 10-30% of written-off accounts through persistent collection efforts, even years later.

How do you prevent bad debt in B2B?

Key prevention strategies include: credit screening new customers before extending terms, requiring deposits or partial upfront payment for large orders, using shorter payment terms (Net 30 instead of Net 60), and beginning collection outreach within 7 days of a missed payment — before accounts age into high-risk territory.

Tired of writing off uncollected invoices?

AgentCollect AI agents contact overdue accounts in the first week — stopping bad debt before it forms. Success-only fees.

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