One option that you have is to ask your employer to withhold an additional dollar amount from your paychecks. For example, you can have an extra $25 in taxes taken out of each paycheck by writing that amount on the corresponding line of your W-4. This paycheck calculator will help you determine how much your additional withholding should be. Both 1099 workers and W-2 employees must pay gross pay vs net pay FICA taxes for Social Security and Medicare.
