We can help you change your withholdings for tax year 2017 by filling out a W-4:
- Open (continue) your return in TurboTax.
- In the search box, search for W-4 or W4 (lower-case works too) and then click the "Jump to" link in the search results.
- Answer Yes when asked if you want to adjust your withholdings and follow the onscreen instructions.
- When you get ready to file, we'll provide instructions for printing out your W-4. Give it to your employer and keep a copy for yourself.
See How do I change my future paycheck withholdings?
https://ttlc.intuit.com/questions/1901003-how-do-i-change-my-future-paycheck-withholdings
