How To Use Uncollectible In A Sentence

Whenever an account receivable from a specific customer is determined to be uncollectible, it no longer qualifies as an asset and should be written off.
The employees who maintain accounts receivable or handle cash receipts should not have authority to issue credit memoranda or to authorize the write-off of receivables as uncollectible.
Equal to the gross amount of accounts and notes receivable, less an estimate of the portion that may prove to be uncollectible.
Of the $152.1 million the hospital wasn't paid to GMH in fiscal 2008, more than $117 million is estimated to be "uncollectible," the audit states. Guampdn.com - Local News
Copyright Office as uncollectible, the Copyright Office will cancel the registration and will notify the remitter. Copyright Basics

Uncollectible loans are generally thought to exceed 20 % of all lending.
OVERALL LIMIT- In no case shall the total payments required pursuant to subparagraph (A) exceed the amount of the uncollectible share.
Five of the six biggest card issuers posted their lowest rates for charge-offs, or accounts written off as uncollectible. Citigroup earnings and other business news
Wells Fargo's revenue has been under pressure because loans it got with the acquisition of Wachovia in 2008 are running off or are being charged off as uncollectible, and low interest rates cut the bank's revenue from lending and investing. Wells Fargo Eyes Dividend Despite Economic, Business Headwinds
- The consultants said the state should create a mechanism by which old and uncollected debt can be reclassified as "uncollectible," so state resources can be redeployed toward debts worth pursuing. DesMoinesRegister.com - NEWS
a bad (or uncollectible) debt
Notice that this entry is exactly the opposite of the entry as uncollectible.
I agree that the ‘loans’ should only be written off when they do in fact become uncollectible, that is the rule for everybody else. The Volokh Conspiracy » A Tax Break for Trial Lawyers?
Based upon past experience, the uncollectible accounts expense is estimated at some percentage of net credit sales.