How to Allow for Doubtful Accounts in Money Management

Everyone · How-to · Updated October 1, 2026 · LearnLife Editorial

What Do You Need Before Starting to Allow for Doubtful Accounts?

Before setting up an allowance for doubtful accounts, you need thorough records of your accounts receivable—the money owed by customers or clients. Collect invoices, payment histories, and aging reports that categorize outstanding amounts by how long they’ve been unpaid (for example, 0–30 days, 31–60 days, etc.). These aging reports help identify which accounts are more likely to become uncollectible.

You should also have some historical data or knowledge about past unpaid bills. For instance, if historically 3 out of every 100 customers fail to pay, you can use that as a baseline. If you’re a small business or managing personal loans, keep records of payments and defaults to guide your estimates.

Additionally, your accounting software or bookkeeping system must be able to handle two key accounts:

• Allowance for Doubtful Accounts: a contra asset account that reduces accounts receivable on the balance sheet
• Bad Debt Expense: an expense account on the income statement that reflects estimated losses

If you don’t have these accounts set up, prepare to create them or work with an accountant to do so. This groundwork ensures that when you estimate and record doubtful accounts, your financial records reflect reality.

What Is an Allowance for Doubtful Accounts and Why Is It Important?

An allowance for doubtful accounts is a way to anticipate that some customers will not pay their debts, so your accounts receivable balance is adjusted to reflect a more realistic amount. Without this allowance, your financial statements may show inflated income and assets because they assume all debts will be collected.

This allowance is important because it:

• Matches expenses to the same period when sales were made, following the matching principle in accounting
• Prevents sudden large hits to income when debts are written off, by spreading anticipated losses over time
• Gives a clearer picture of your true financial health and cash flow situation
• Helps with budgeting and planning, since you expect some losses instead of being surprised by them

For example, if your accounts receivable total $10,000 but you expect $500 won’t be collected, your net receivable on the balance sheet should be $9,500. The $500 is recorded in the allowance for doubtful accounts.

How Do You Estimate the Allowance for Doubtful Accounts?

Two main methods help estimate doubtful accounts:

1. Percentage of Sales Method

This method applies a fixed percentage to total credit sales within a period. For example, if you sold $50,000 on credit last month and expect 2% to be uncollectible based on past experience, you would record $1,000 as bad debt expense.

To use this method:

• Review your historical bad debt as a percentage of credit sales
• Apply that percentage to your current credit sales
• Record the resulting amount as an estimated allowance

This method is simple but doesn’t consider the age of specific debts.

2. Aging of Accounts Receivable Method

This method categorizes outstanding invoices by how long they have been unpaid, assigning different risk levels to each category. Older invoices are generally less likely to be collected.

Example aging categories and estimated uncollectible percentages:

• 0-30 days: 1%
• 31-60 days: 5%
• 61-90 days: 15%
• Over 90 days: 40%

If you have $5,000 in 0-30 days, $2,000 in 31-60 days, $1,000 in 61-90 days, and $500 over 90 days, your estimated allowance would be: (5,000 x 1%) + (2,000 x 5%) + (1,000 x 15%) + (500 x 40%) = $50 + $100 + $150 + $200 = $500

This method takes into account the likelihood of collection based on the age of the debt, making it more accurate.

Choosing between methods depends on your business size, data availability, and accounting goals. Smaller businesses with limited data may prefer the percentage of sales method, while detailed aging data supports the aging method.

What Are the Steps to Record an Allowance for Doubtful Accounts?

Follow these detailed steps to set up and maintain your allowance for doubtful accounts:

1. Review Your Accounts Receivable Look at your outstanding invoices and payment histories. Organize them into aging categories if possible to understand which debts are overdue and by how much.

1. Estimate the Uncollectible Amount Use the percentage of sales or aging method to calculate how much of your receivables might not be collected. Document your assumptions and calculations for transparency.

1. Make the Journal Entry Record the bad debt expense and set up or adjust the allowance account: Debit Bad Debt Expense (increases expenses, lowering net income) Credit Allowance for Doubtful Accounts (a contra asset account that lowers accounts receivable)

Exact wording for the journal entry: “Debit Bad Debt Expense $X; credit Allowance for Doubtful Accounts $X.”

1. Adjust the Allowance Regularly At the end of each accounting period (monthly or quarterly), recalculate your allowance based on updated data. Increase or decrease the allowance by making additional journal entries.

1. Write Off Specific Uncollectible Accounts When you confirm that a specific invoice is uncollectible: Debit Allowance for Doubtful Accounts Credit Accounts Receivable

This removes the specific uncollectible amount from your books without impacting income again, since the expense was already anticipated.

This process ensures your financial statements stay accurate and reflect real risks.

How Can You Tell if the Allowance for Doubtful Accounts Worked?

You can evaluate the effectiveness of your allowance by:

• Comparing your estimated bad debts to your actual write-offs over time. If you consistently write off more than your allowance, your estimates are too low; if less, they may be too high.
• Checking whether your net accounts receivable balance matches the cash you actually collect.
• Monitoring fluctuations in your bad debt expense and allowance balances. Sudden spikes may indicate a need to update estimates or collections procedures.
• Using your allowance as a planning tool to set realistic budgets and cash flow expectations.

For example, if you estimated $500 in doubtful accounts this quarter but ended up writing off $1,000, increase your future allowance percentage or review your collection policies. Conversely, if you wrote off only $100, you may reduce your allowance next period.

Regular review helps keep your financial reporting truthful and useful.

What Should You Do When the Allowance for Doubtful Accounts Is Not Accurate?

If your allowance is frequently inaccurate, take these steps:

• Reassess Your Estimation Method: Review whether the percentage or aging categories need adjustment. For example, if your industry economic conditions change, your historical percentages might no longer apply.
• Improve Data Quality: Make sure your accounts receivable and aging reports are current and free of errors. Missing or outdated data can lead to wrong estimates.
• Increase Frequency of Reviews: Instead of quarterly, review monthly if your business has volatile receivables or experiences rapid changes.
• Enhance Collections Efforts: Contact customers with overdue accounts early and set clear payment terms to reduce bad debts.
• Consult an Accountant: Professional advice may help refine your estimation and recording methods, especially as your business grows.

Example exact wording to update allowance: “Debit Bad Debt Expense $X; credit Allowance for Doubtful Accounts $X” to increase allowance, or the reverse to decrease it.

By addressing inaccuracies promptly, you avoid surprises and maintain healthy financial records.

How Can This Process Be Adapted for Managing Kids' Allowances?

While allowance for doubtful accounts is an accounting concept for business, parents can adapt the idea to teach kids about money responsibility and managing expectations.

For example:

• If children lend money to friends or siblings, parents can encourage kids to set aside a small “loss fund” or understand that some loans may not be repaid, just like businesses expect some uncollectible debts.
• Teach kids to budget their allowance with an “allowance for mistakes” or unexpected losses, helping them learn to save and manage money prudently.
• Use simple versions of aging accounts by reviewing which debts or borrowed money are overdue and discussing the risks of lending.
• Encourage kids to keep records of allowances earned, spent, and lent, promoting good financial habits.

Parents might say: “Since sometimes friends can’t pay you back right away, it’s smart to expect a little loss and save some money just in case.”

This approach builds financial awareness and responsibility in children, preparing them for real-world money management.

Frequently asked questions

What is the difference between allowance for doubtful accounts and bad debt expense?

The allowance for doubtful accounts is a balance sheet account estimating uncollectible receivables, reducing assets. Bad debt expense is an income statement account showing the cost of those estimated losses during a period.

How often should the allowance for doubtful accounts be reviewed?

It should be reviewed at least quarterly, but businesses with frequent changes in receivables may review monthly or as needed to keep estimates accurate.

Can individuals use allowance for doubtful accounts for personal loans?

Yes, individuals can apply the concept informally to anticipate that some personal loans may not be repaid, helping with budgeting and financial planning.

What happens if no allowance for doubtful accounts is made?

Financial statements may overstate income and assets, leading to unrealistic expectations and potential cash flow problems when debts go unpaid.

How is a specific bad debt written off?

Debit the allowance for doubtful accounts and credit accounts receivable for the specific amount, removing it from the books without affecting income again.