Can 2 parents claim a child 6 months each? Parents do not share shelter costs or cost of living

[AmyW]

No, a child can only be claimed on one tax return.

You may be able to claim your child as a qualifying child if:

• They are under 19, or a full-time student and under 24 years of age. There is no age limit if they are permanently and totally disabled.
• They lives with you for more than half of the year (Temporary absences, like going to college does not count)
• You provided more than half of their support for the tax year
• You are the only person claiming them

See the article below for the rules about claiming a qualifying child. 

https://turbotax.intuit.com/tax-tools/tax-tips/Family/Tax-Exemptions-and-Deductions-for-Families/INF...

Here is a worksheet that will help you determine if you provide more than half of your child's  support:

https://apps.irs.gov/app/vita/content/globalmedia/teacher/worksheet_for_determining_support_4012.pdf

[macuser_22]

However, if the he parents have been separated at all times during the last 6 months of the year and live apart, then there is a way to "split" certain credits.

See “Children of divorced or separated parents or parents who live apart” in IRS Pub 17 for full information.

<a rel="nofollow" target="_blank" href="https://www.irs.gov/publications/p17#en_US_2017_publink1000170897">https://www.irs.gov/publications/...>