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Accounting & Bookkeeping

Accounts Receivable Data Quality: How to Stop Chasing Phantom Invoices

AR data quality problems inflate your receivables balance with invoices that will never be paid, distort your cash position, and lead to poor collection decisions. Here's how to fix it.

Key Takeaways
  • Phantom AR (unapplied payments, uncredited disputes, unflagged bad debt) overstates your true cash position
  • Every invoice over 90 days needs a date-stamped status note: reviewed, status, next action
  • Unapplied payments are one of the most common and least detected AR data problems
  • Track DSO monthly — an upward trend signals collections problems before they become crises
  • Disputed invoices not flagged in the system age silently and create customer relationship damage

The Phantom Invoice Problem

Your accounts receivable balance shows $145,000 outstanding. Your bookkeeper shows you the aging report. Three clients account for $80,000 of that — all invoices over 180 days old.

One client disputed the invoice 5 months ago and you haven't followed up. One client went out of business 3 months ago. One is in a payment arrangement that was set up verbally but never updated in the system.

Your "real" collectible AR is probably $65,000 — less than half of what the books show. Your reported AR doesn't reflect reality.

How AR Data Gets Corrupted

Unapplied payments: A customer pays $5,000 and the payment is posted to the wrong invoice. The correct invoice remains "open." Now you have phantom AR and an unapplied credit simultaneously.

Credits not issued: A customer receives a damaged product and asks for a credit. The credit is agreed verbally but never entered. The invoice remains open. The customer doesn't pay it. Both sides think the other is wrong.

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Disputed invoices not flagged: An invoice is disputed — the customer says the work wasn't completed or the amount is wrong. The dispute is known internally but not reflected in the accounting system. The AR ages silently.

Write-offs not taken: Invoices that are genuinely uncollectible remain on the books for years because no one has authorized the write-off. The AR balance is overstated.

The AR Quality Review Process

Monthly, run an aging report and review every invoice over 90 days:

For each over-90 invoice:

  1. Is this actually outstanding or is there an unapplied payment?
  2. Is there a dispute, credit, or payment arrangement that should be noted in the system?
  3. Is collection activity underway? What's the status?
  4. Is this collectible? If not, is it time to write it off?

Every invoice over 90 days needs a status note in your system — a date-stamped comment showing when it was last reviewed and what the current situation is.

AR Data Quality Metrics to Track

  • Average days sales outstanding (DSO): Total AR / (Annual revenue / 365). Track this monthly. Upward trend means your collections are slowing.
  • % of AR over 90 days: This bucket contains your highest write-off risk. Track it monthly.
  • Write-off rate: Total write-offs / Total invoiced. If this is rising, your credit policy or invoice accuracy has a problem.
  • Disputed invoice rate: Total invoices in dispute / Total invoices. Rising disputes indicate billing accuracy or customer relationship problems.

Sohovi tracks quality trends across runs and alerts you when a metric — null rate, duplicate count, score — moves outside its normal range.

Frequently Asked Questions

When should I write off an uncollectible invoice?

Most businesses write off invoices over 180 days with no payment activity and no reasonable expectation of collection. Consult your accountant — write-offs may have tax implications (can be taken as bad debt expense for accrual-basis businesses).

How do I find unapplied payments?

In most accounting software, look for customer credits on your AR aging or in a separate 'unapplied credits' report. QuickBooks has a specific report for this. Any credit that's been sitting unapplied for more than 30 days should be investigated.

What's a healthy DSO for a small business?

Depends on your payment terms. If terms are Net 30, a DSO of 35–45 days is typical. If your DSO is more than twice your payment terms, collections and billing accuracy need attention.

Selva Santosh

Data quality, for people who ship

Selva writes practical guides on data quality, profiling, and governance to help teams ship better data.

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