hello bmay:
figuring out withholding can be cumbersome. the new w-4 is a bit different than in the past, there is no longer a spot where you claim exemptions. My suggestion is you use our tax calculator and project the taxdue /or refund.
see this link regarding the w-4. and the tax calculator
https://turbotax.intuit.com/tax-tips/irs-tax-forms/what-is-a-w-4-form/L2NapDzX2
tax calculator: https://turbotax.intuit.com/tax-tools/calculators/w4/
note follow the screens will ask you for your current wages, ytd income tax withholdings/ withholdings per paycheck etc. at the end , the summary will allow you to adjust withholdings to give the projected refund. A great tool to correctly withhold on the w-4.
hope this helps.