Taxpayers can deduct prepaid expenses only if the amount will be used up before 12 months since benefit started
Ex: If you prepaid for $10,000 of expenses on March 2020 and use $9,000 in 2020 and $1,000 by March 2021, you can deduct the sum ($10,000) in the 2020
If benefit is not used up before 12 months, you can only deduct what is used in the year of