Use the worksheets in the instructions for a Form 1040-ES to calculate the estimated tax for tax year 2019 - https://www.irs.gov/pub/irs-pdf/f1040es.pdf
When paying the estimated taxes and this is a joint payment then include your spouse's name and Social Security number on the form. Joint or individual the payment will be reported on your 2019 tax return if you will be filing as Married Filing Jointly.
