You can increase your W2 withholding to cover the extra tax
or you can ask them to take withholding out of the interest & dividends
or you can send in quarterly estimates. Here are the blank Estimates and instructions…..
http://www.irs.gov/pub/irs-pdf/f1040es.pdf
The 1040ES quarterly estimates are due April 15, 2019, June 17, Sept 16 and Jan 15, 2020. Your state will also have their own estimate forms.
Or you can pay directly on the IRS website https://www.irs.gov/payments
Be sure to pick the right kind of payment and year.....2019 Estimate
