Try these tools to figure the W-4:
http://www.irs.gov/Individuals/IRS-Withholding-Calculator
https://turbotax.intuit.com/tax-tools
http://turbotax.intuit.com/tax-tools/calculators/taxcaster
Who can I claim as my dependent?
You can claim a child, relative, friend, or fiancé (etc.) as a dependent on your 2018 taxes as long as they meet the following requirements:
Qualifying child
- They are related to you.
- They aren't claimed as a dependent by someone else.
- They are a U.S. citizen, resident alien, national, or a Canadian or Mexican resident.
- They aren’t filing a joint return with their spouse.
- They are under the age of 19 (or 24 for full-time students).
- No age limit for permanently and totally disabled children.
- They live with you for more than half the year (exceptions apply).
- They didn't provide more than half of their own support for the year.
Qualifying relative
- They don't have to be related to you (despite the name).
- They aren't claimed as a dependent by someone else.
- They are a U.S. citizen, resident alien, national, or a Canadian or Mexican resident.
- They aren’t filing a joint return with their spouse.
- They lived with you the entire year.
- They made less than $4,150 in 2018 ($4,250 in 2019).
- You provided more than half of their financial support.
When you add someone as a dependent, we'll ask a series of questions to make sure you can claim them.
