Answer:
$81,900
Step-by-step explanation:
tax liability = (total income - total expenses + long term capital gains - short term capital gains) x tax rate
tax liability = ($730,000 - $400,000 + $90,000 - $30,000) x 21% (corporate tax established by TC&JA) = $390,000 x 21% = $81,900
Corporations pay the same tax rate for normal income or capital gains, unlike individuals who generally pay lower capital gains rates.