Answer:
$26,125
Step-by-step explanation:
[($25,000 x 0.005) x 9 + $25,000]
=$26,125
Zach owe $26,125 as of December 31, 2019 because he did not fail to file - he failed to pay. Hence he owes the 0.5% per month or part of a month failure to pay penalty plus the already outstanding tax amount of $25,000 that he owed.