Doubtful debts are those debts which a business or individual is unlikely to be able to collect. The reasons for potential non-payment can include disputes over supply, delivery, the condition of item or the appearance of financial stress within a customer's operations. When such a dispute occurs it is prudent to add this debt or portion there of to the doubtful debt reserve. This is done to avoid over-stating the assets of the business as trade debtors are reported net of Doubtful debt. 

When there is no longer any doubt that a debt is uncollectible, the debt becomes bad. An example of a debt becoming uncollectible would be:- once final payments have been made from the liquidation of a customer's limited liability company, no further action can be taken.

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A debt is defined as a debt which arises from a debtor-creditor relationship based upon a valid and enforceable obligation to pay a determinable sum of money. The debt in question must also be considered worthless. This distinction is further broken down into the level of collectibles. One must determine whether the qualifying debt is completely or partially worthless. A partially worthless status means a portion of the debt may be recovered in future periods. Numerous factors are taken into consideration including the debtor’s insolvency status, health conditions, credit standing, etc.