In $2024,$ OCC Corporation made a charitable donation of $$400,000$ to the International Rescue Committee $($a qualifying charity$).$ For the year, OCC reported taxable income of $$1,500,000$ before deducting any charitable contributions, before deducting its $$20,000$ dividends$-$received deduction, and before deducting its $$40,000$ NOL carryover from last year. Assume the donation is a qualified contribution.

Required:

What amount of the $$400,000$ donation is OCC allowed to deduct for tax purposes in $2024,$ what is the carryover to $2025,$ and when does the carryover expire?

Assume that in $2025,$ OCC did not make any charitable donations and that it is allowed to deduct its full charitable contribution carryover, if any, from $2024.$ What book$-$tax difference associated with the charitable contributions will OCC report in $2025?$ Is the difference favorable or unfavorable? Is it permanent or temporary?

Required:

If GC actually pays $$50,000$ of this contribution on January $15$ of year $2$ and the remaining $$25,000$ on or before April $15$ of year $2,$ what book$$tax difference will it report associated with the contribution in year $1($assuming the income limitation does not apply$)?$ Is it favorable or unfavorable? Is it permanent or temporary?

Assuming the same facts as in part $($a$),$ what book$-$tax difference will GC report in year $2($assuming the income percentage limitation does not apply$)?$ Is it favorable or unfavorable?

If GC actually pays $$50,000$ of this contribution on January $15$ of year $2$ and the remaining $$25,000$ on May $15$ of year $2,$ what book$$tax difference will it report associated with the contribution in year $1($assuming the income percentage limitation does not apply$)?$ Is it favorable or unfavorable? Is it permanent or temporary?

Assuming the same facts as in part $($c$),$ what book$-$tax difference will GC report in year $2($assuming the income percentage limitation does not apply$)?$ Is it favorable or unfavorable?