What is the allowance for doubtful accounts?

Allowance for doubtful accounts is a contra asset account that represents the estimated portion of accounts receivable that will not be collected, reducing the net AR balance to its expected realizable value. For professional service firms, this allowance provides more accurate financial statements by recognizing that some receivables will become uncollectible. The allowance is typically calculated based on historical collection experience and current AR aging.

Key characteristics

• Contra asset reducing net AR value

• Estimates the uncollectible portion of receivables

• Based on historical collection experience

• Adjusted for current AR aging and conditions

• Creates more accurate financial statements

• Bad debt expense is recorded when the allowance is established

Why it matters for professional service firms

Without an allowance, AR and profit are overstated by amounts that will never be collected. A firm with $500K AR and a typical 3% uncollectible rate has only $485K in realizable value. The allowance ensures balance sheet accuracy and matches bad-debt expense to the period in which revenue was recognized, not when the receivable is finally written off. Professional service firms should maintain allowances based on their collection history and current AR quality.

Real-world example

Kevin's firm had $420K AR with no allowance. Historical analysis: 2.5% of billings typically became uncollectible, mostly from invoices over 90 days old. Current AR over 90 days: $45K. Allowance calculation: general reserve 2.5% of current AR ($10.5K) plus specific reserve for known problem accounts ($8K), total allowance $18.5K. Net realizable AR: $401.5K. Monthly process: review aging, assess collectibility, adjust allowance. When accounts are written off, they reduce the allowance rather than creating a sudden expense. Financial statements now reflect realistic AR value.