Lightwave Logic, Inc. LWLG Allowance for Doubtful Accounts Receivable (Current)

Accounts receivable are carried at their contractual amounts, less an estimated allowance for credit losses. Management estimates the allowance for credit losses using a loss-rate approach based on historical loss information, adjusted for management’s expectations about current and future economic conditions, as the basis to determine expected credit losses. Management exercises significant judgment in determining expected credit losses. Key inputs include macroeconomic factors, industry trends, the creditworthiness of counterparties, historical experience, the financial conditions of the customers, and the amount and age of past due accounts. Management believes that the composition of receivables at year-end is consistent with historical conditions as credit terms and practices and the client base has not changed significantly. Receivables are considered past due if full payment is not received by the contractual due date, which is typically 30 days from the invoice date. Past due accounts are generally written off against the allowance for credit losses only after all collection attempts have been exhausted. The allowance for credit losses was zero 0 as of December 31, 2025 and 2024.