I have a one time $250K capital gains from stock sale in March 2019. Am I penalty proof if I pay 100% of 2018 tax owed thru withholdings by 2019 year end?

[karcar]

My 2018 taxable income was $162,000.

[TomD8 · Accepted solution]

See this:  https://turbotax.intuit.com/tax-tips/small-business-taxes/estimated-taxes-common-questions/L1luHqVdl

Note that you must pay at least 110% of the previous year's income tax liability if your prior year's AGI exceeded $150,000.