Just want to clarify. Cadets receive W2s meaning they take federal and state income taxes are taken out. BAS(given for break periods) is not taxable, and so essentially all cadets will receive the same base pay in any given year. For C4Cs the question becomes whether it is more advantageous for parents to claim as a dependent if they are able to, but I personally have never seen a tax situation with my peers where itemizing makes sense. Most cadets will probably receive a refund/break even with standard deduction.
For clarification, parents only have the option of declaring the cadet/mid a dependent if the cadet/mid lived at home for more than 1/2 the year. So only C4C's can be considered (you can split a lot of hairs regarding when Basic/Plebe summer started) if they were your dependent or not. Preppies and prior enlisted don't have this option - they are independent.
Cadets/Mids are typically briefed on filing tax returns and their status as a dependent or not for the first few months they are at the academy.
I think they 'earn' $1185 per month in taxable wages, which for six months is less than $7200 gross on the Box 1 of the W2. They would essentially have to be 'trust fund babies' to even considering itemizing vs the standard deduction. (All the 'allowances' they receive for food and such never appear on the W2 - great for tax purposes, not so good when realize that money is not factored into retirement calculations)
TurboTax (and probably other tax software companies) make their product available for free to military members. The most difficult thing cadets/mids need to sort out when using this product is selecting what rank to select for the 'free' version. Historically, Turbo Tax has not provided 'Cadet/Mid' as a recognized rank in their system. Pick O-1 or E-1 - their is no intent to deceive, the company simply isn't sophisticated enough to include 'Cadet' as an option.
If you do claim your C4C on your tax return for 2022 - Make certain your cadet/mid knows you did it. This would generate a 'Red Flag' at the IRS for someone to be claimed on 2 separate returns for the same period.
As a general rule, you aren't paying tuition, food, books, medical costs (though you might still be carrying them on your medical insurance plan), etc - cut them loose and leave them off your return.
Some organizations will offer mids/cadets 'deals' to prepare their tax return. It should take the typical cadet about 20 minutes to do their own return.