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Bookkeeping & finance

Allowance for doubtful accounts: estimate credit losses before specific invoices are written off

A receivables portfolio can contain expected losses even before a specific customer balance is declared uncollectible. A documented allowance uses aging, history, customer risk, and current facts to estimate that exposure.

Published August 29, 2026Reviewed August 29, 2026 1 min read

An allowance is different from a specific write-off

A write-off removes a particular receivable the company no longer expects to collect. An allowance estimates expected credit losses across receivables that may still be legally outstanding.

Book and tax treatment can differ, so tax deductibility should not be assumed from the financial-statement allowance.

Build the estimate from observable evidence

Use receivable aging, historical write-off rates, customer concentration, disputes, bankruptcies, payment plans, economic conditions, and specific known risks.

Large individual customers may deserve a separate assessment from the general aging pool.

Reconcile the allowance roll-forward

Track opening allowance, current-period provision, specific write-offs, recoveries, and ending allowance. The schedule should reconcile to the balance-sheet contra-asset and bad-debt expense or other applicable account.

Document management judgment behind material changes.

Use the estimate to improve credit decisions

A rising allowance can indicate weakening customer quality, looser terms, slower collections, or concentration risk. Compare the trend with sales growth and days sales outstanding.

The objective is not to smooth earnings, but to make receivables more realistic and commercially useful.

Frequently asked questions

Questions buyers usually ask

What is the difference between a bad-debt write-off and an allowance?

A write-off removes a specific receivable considered uncollectible, while an allowance estimates expected losses across outstanding receivables.

Is a book allowance automatically tax deductible?

No. Tax rules for bad debts can differ from financial-statement accounting, so the tax preparer should review deductibility separately.

Official sources

Check provider facts at the source.

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