Yes, you can complete and pay the 4th quarter estimated tax. The Q4 payment is due by 15th January, 2020, but can be paid at any time. You can also use the Electronic Federal Tax Payment System (EFTPS) to make the payment (https://www.eftps.gov/eftps/direct/EftpsHome.page).
Answers are correct to the best of my ability but do not constitute legal or tax advice.
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