To calculate the net realizable value of accounts receivable, subtract the allowance for doubtful accounts from your gross accounts receivable. If your ledger shows $150,000 in unpaid customer invoices and you estimate $12,500 will never be collected, the NRV is $137,500. That adjusted figure is what belongs on your balance sheet under GAAP, not the raw invoice total.1Securities and Exchange Commission. Significant Accounting Policies – Accounts Receivable and Allowance for Doubtful Accounts
The Two Numbers You Need
The calculation requires only two figures from your general ledger or trial balance.
Gross accounts receivable is the total dollar amount customers currently owe. Pull it from the accounts receivable sub-ledger or the current period’s trial balance. This number represents the maximum cash you would receive if every customer paid in full and on time. It is an optimistic ceiling, not a realistic expectation.
The allowance for doubtful accounts is a contra-asset that offsets the gross receivable. It represents how much of that total you realistically expect to lose to non-payment, and it appears on the ledger as a credit balance that reduces gross receivables. Accountants typically set this figure by reviewing historical collection patterns, customer creditworthiness, and current economic conditions. Under FASB guidance (ASC 310), losses on receivables must be recognized when it is probable that an amount is uncollectible and the loss can be reasonably estimated.1Securities and Exchange Commission. Significant Accounting Policies – Accounts Receivable and Allowance for Doubtful Accounts
Estimating the Allowance
The allowance is an estimate, and the method you choose determines how well it tracks reality. Two traditional approaches are still common, and a newer standard now governs most companies.
Percentage of Credit Sales
This approach applies a fixed loss rate to total credit sales for the period. If your historical data shows that roughly 3% of credit sales go unpaid, multiply the period’s credit sales by 0.03 to calculate the bad debt expense. A company with $200,000 in credit sales and a 3% loss rate would record $6,000 in bad debt expense for that period.
The method is straightforward and ties the expense directly to revenue, keeping the income statement consistent from period to period. Its weakness: it doesn’t respond to what is actually happening in your receivables. A sudden spike in overdue invoices won’t increase the allowance until you revise the loss rate itself.
Aging of Accounts Receivable
The aging method groups your outstanding invoices into buckets based on how long they have been overdue, then applies a different estimated loss rate to each bucket. A common setup looks like this:
- Current, not yet due: 1% loss rate
- 1–30 days past due: 3% loss rate
- 31–60 days past due: 5% loss rate
- 61–90 days past due: 15% loss rate
- Over 90 days past due: 40–50% loss rate
Multiply each bucket’s balance by its assigned rate and add the results. That total is your required allowance. For example, $50,000 in the 31–60 day bucket at 5% contributes $2,500, while $10,000 in the over-90-day bucket at 50% contributes $5,000. Because aging responds directly to what is happening in your sub-ledger, it produces a more precise allowance than the percentage-of-sales approach, particularly when a few large accounts are drifting past due.
The CECL Standard
The Financial Accounting Standards Board replaced the older “incurred loss” model with the Current Expected Credit Loss (CECL) model under ASC 326. The previous approach required you to recognize a loss only after it was probable that a specific receivable was impaired. CECL removed that threshold and requires you to estimate lifetime expected credit losses from the moment a receivable is created.2Federal Reserve Board. Frequently Asked Questions on the New Accounting Standard on Financial Instruments – Credit Losses
Under CECL, the allowance must reflect past loss experience, current conditions, and reasonable and supportable forecasts about the future, such as an expected recession or industry downturn. This forward-looking requirement generally produces larger allowances recorded earlier, especially when economic conditions are deteriorating. CECL is now effective for all SEC filers, smaller reporting companies, and private companies, so nearly every entity preparing GAAP financial statements uses this model today.2Federal Reserve Board. Frequently Asked Questions on the New Accounting Standard on Financial Instruments – Credit Losses
The Formula and a Worked Example
Once you have both figures, the calculation is a single subtraction:
Net Realizable Value = Gross Accounts Receivable − Allowance for Doubtful Accounts
Applied to the opening numbers: $150,000 in gross receivables minus a $12,500 allowance produces an NRV of $137,500. That $137,500 is the amount you realistically expect to collect and the figure that flows onto the balance sheet. FASB standards require trade receivables to be reported at outstanding principal adjusted for charge-offs and the allowance for doubtful accounts, which is exactly what the formula produces.1Securities and Exchange Commission. Significant Accounting Policies – Accounts Receivable and Allowance for Doubtful Accounts
Reporting NRV on the Balance Sheet
The standard presentation shows all three figures so readers can evaluate your receivables at a glance:
- Gross accounts receivable: $150,000
- Less: Allowance for doubtful accounts: ($12,500)
- Net accounts receivable: $137,500
Listing the gross amount and the allowance separately, rather than showing only the net figure, lets investors and creditors see both the total amount owed to you and how much of it management has estimated as risk. The net figure then extends into the total current assets column. This presentation is required under GAAP: receivables must be reported at outstanding principal adjusted for the allowance, and revenues must be reported net of estimated uncollectible amounts.1Securities and Exchange Commission. Significant Accounting Policies – Accounts Receivable and Allowance for Doubtful Accounts
When to Recalculate
Redo the NRV calculation at the close of every reporting period. If the allowance hasn’t been refreshed to reflect current conditions, the aging of your receivables, and (under CECL) your forward-looking view of credit losses, the NRV will be wrong, and so will the current assets figure that depends on it. The gross receivable moves every time an invoice is issued or paid; the allowance has to keep pace, or the net figure quietly drifts.
A Note on Taxes
The allowance method drives your balance sheet, but it does not drive your tax return. For federal tax purposes, the IRS generally requires businesses to use the specific charge-off method: you can deduct a bad debt only when a specific receivable actually becomes worthless, not when you estimate future losses.3Internal Revenue Service. Publication 334, Tax Guide for Small Business A wholly worthless business debt is deductible in full in the year it becomes worthless; a partially worthless business debt is deductible only up to the amount you charged off on your books during that year.4Office of the Law Revision Counsel. 26 U.S. Code 166 – Bad Debts To qualify, you must have previously included the unpaid amount in gross income, which accrual-method businesses do automatically at the point of sale, and you must show reasonable collection efforts before concluding the debt was worthless.5Internal Revenue Service. Topic No. 453, Bad Debt Deduction
Because the book allowance rarely matches the tax deduction in any given year, corporations reconcile the difference on Schedule M-1, or Schedule M-3 for corporations with total assets of $10 million or more, when filing Form 1120.6Internal Revenue Service. Instructions for Form 1120 Keep clear records of both the book allowance and the specific accounts charged off for tax purposes so the two sets of numbers can be tied out during an audit.