Kevin Calvin reported an income tax liability of $100,000 (on AGI of $420,000) on his tax return for the prior year. This year, Kevin anticipates an income tax liability of $130,000. He also has estimated that the amount of income tax that will be withheld from his wages will equal $80,000. What is the minimum amount of estimated tax payments that Kevin must pay in equal quarterly installments for the current year?

$10,000

$20,000

$30,000

$37,000

$50,000