Hi there! Without knowing more about your tax situation, it is difficult to answer your question other than to suggest you check out our W-4 calculator. Answer the questions by entering your info and it will assist you in determining what you should do and then you can update your W-4 accordingly. Here is the link:
https://turbotax.intuit.com/tax-tools/calculators/w4/
You can also use our taxcaster tax calculator to calculate if you will get a refund and how much or if you will owe, etc. Here is the link:
https://turbotax.intuit.com/tax-tools/
Hope this helps!