Is this analyz1. In “Unclaimed Deductions,” Alice Axia wrote about the most commonly overlooked deductions when filing a 1040 tax return. She provided information about the total number of missed deductions. In a separate article, titled “The Challenges of Estimating Tax Revenue,” Phyllis Phoenix talked about a number of reasons why estimated tax revenue may be a challenge. She did not discuss the points made by Ms. Axia. It is possible that much of the difference between tax revenue received and estimated tax revenue may be explained by looking at the additional revenue generated by overlooked deductions.ing