ABC Companies maintains its accounting records under the accrual method ("accrual basis") and its annual accounting period ends on December 31. During 2021, he incurred expenses amounting to $100,000, of which $40,000 had not been paid as of December 31, 2021. Of the $40,000 unpaid, $20,000 was paid in February 2022, and the remaining $20,000 was paid in April 2022. Determine how much of the expenses incurred in 2021 the business can claim as ordinary and necessary expenses in the 2021.