An allowance for bad debt (also called an allowance for doubtful accounts) is a contra-asset valuation account set up to reflect the portion of a company’s accounts receivable that management expects will not be collected. It reduces the gross receivables on the balance sheet to a more realistic net realizable value. Related terms: bad debt expense (income statement charge for the period) and write-off (removal of a specific uncollectible receivable from the books).
Why companies use an allowance
– The face value of receivables overstates cash the firm will actually receive.
– GAAP and other accounting frameworks require receivables to be shown at expected collectible value, not simply at invoice total.
– Using an allowance matches expected losses to the period when the related sales occurred (matching principle).
Basic accounting mechanics (journal entries)
1. To record an estimated loss:
• Debit Bad Debt Expense
• Credit Allowance for Bad Debt (contra-asset)
2. To write off a specific account when it’s confirmed uncollectible:
• Debit Allowance for Bad Debt
• Credit Accounts Receivable
3. If a previously written-off account is later collected, reverse the write-off and record the cash receipt.
Two common estimation approaches
1) Sales (income-statement) method
– Apply a loss rate to current period credit sales to determine bad debt expense.
– Simple and ties expense to sales volume.
Worked example — sales method
– Credit sales this year: $1,000,000
– Historical uncollectible rate: 1.5%
– Bad debt expense = 1,000,000 × 0.015 = $15,000
Journal entry: Debit Bad Debt Expense $15,000; Credit Allowance for Bad Debt $15,000.
2) Accounts-receivable / aging method
– Build an aging schedule of receivables by how long invoices are past due.
– Assign higher uncollectible rates to older buckets because the probability of default rises with time past due.
– The target allowance equals the sum of (balance in each age bucket × estimated loss rate). The current allowance account is then adjusted to reach that target.
Worked example — aging method
Assume receivables:
– Current (0–30 days): $80,000 — estimated loss 1% → 0.01 × 80,000 = $800
– 31–90 days: $15,000 — estimated loss 10% → 0.10 × 15,000 = $1,500
– Over 90 days: $5,000 — estimated loss 50% → 0.50 × 5,000 = $2,500
Target allowance = $800 + $1,500 + $2,500 = $4,800.
If the allowance account already has a $1,200 credit balance, record an adjusting entry for the difference:
– Required increase = 4,800 − 1,200 = $3,600
Journal entry: Debit Bad Debt Expense $3,600; Credit Allowance for Bad Debt $3,600.
Adjustment and default handling
– When a specific receivable is confirmed in default and written off, the company reduces both the allowance account and the accounts receivable balance by the write-off amount (no additional expense at the time of write-off if it was previously estimated).
– Example: Company estimates $2,000,000 of loans at risk and allowance currently totals $1,000,000. The required increase is $1,000,000. Entry: Debit Bad Debt Expense $1,000,000; Credit Allowance for Bad Debt $1,000,000.
Practical step-by-step checklist for estimating and maintaining an allowance
– Gather historical collection and write-off data for at least several periods (if available).
– Prepare an aging schedule of receivables (age buckets: current, 30, 60, 90+ days, etc.).
– Determine loss rates for each age bucket based on history or industry benchmarks.
– Compute target allowance (aging method) or calculate expense via percentage of credit sales (sales method).
– Compare target allowance to existing allowance balance and record adjusting entry for the difference.
– Document assumptions, sources of rates, and periodic review frequency.
– Update rates when macro conditions, customer mix, or policy changes occur.
– Track write-offs and recoveries separately to refine future estimates.
Key requirements and best practices
– Estimates should be based on a firm’s collection history when available; new firms may use industry averages or comparable benchmarks.
– Maintain consistent methods and disclose significant judgment and inputs in financial statement notes.
– Review and adjust the allowance routinely (monthly or quarterly for many firms) to reflect current information.
Assumptions and limitations
– All estimation methods rely on judgment and historical patterns; they cannot predict every future default.
– Major macroeconomic changes, shifts in customer composition, or one-off events may require revising historical loss rates.
Short numeric recap
– Sales method: 1,000,000 × 1.5% = $15,000 bad debt expense.
– Aging method example produced a required allowance of $4,800; if existing allowance is $1,200, record $3,600 additional expense.
Sources for further reading
– Investopedia — Allowance for Bad Debt
…/a/allowance-for-bad-debt.asp
• IFRS Foundation — IFRS 9: Financial Instruments (expected credit loss model): /
– FASB — Accounting Standards Update (ASU) 2016-13: Financial Instruments—Credit Losses (CECL) — summary and resources:
– PwC — CECL implementation and guidance (practical firm-level resources):
– AccountingTools — What is the allowance for doubtful accounts?
Educational disclaimer: This content is for general education about accounting and credit-loss measurement. It is not individualized investment, tax, or accounting advice. For decisions that affect your books, taxes, or investments, consult a licensed accountant, auditor, or financial advisor.