What should I put in the number of allowances I'm claiming?

[liriasla]

Filling out w4 in first job. I am single, and my parents can't claim me as a dependent anymore.

[xmasbaby0]

Try the W-4 calculator.https://turbotax.intuit.com/tax-tools/calculators/w4/

[SweetieJean]

Also see Paychecks here:
<a rel="nofollow" target="_blank" href="https://www.usatoday.com/story/news/politics/2017/12/18/how-soon-after-president-trump-signs-tax-bil...>

[SweetieJean]

Under the new tax law, there will no longer be any personal exemptions starting in 2018.