How do I adjust my w4 if I am filing jointly?

[ashirley]

I am filing jointly, have dependents, have other liabilities that I don't want to make public.

[Andrew_W]

When adjusting your W-4, it is best to use a W-4 calculator such as this one: https://turbotax.intuit.com/tax-tools/calculators/w4/ 

It is designed to take into account all sources of taxable income.

When filing a joint return, all income for both spouses is reported on the same return. It is best to complete the calculator with all income information available for both you and your spouse. The calculator will provide recommendations for filling out updated W-4s for all employers (if both you and your spouse work).