Child custody

[lindzz143]

My 

[DoninGA]

Go to IRS Publication 501 page 13 under the heading Custodial parent and noncustodial parent - https://www.irs.gov/pub/irs-pdf/p501.pdf#page=13

The custodial parent is the parent with whom the child lived for the greater number of nights during the year. The other parent is the noncustodial parent.

[lindzz143]

I have seen this, but have also seen it listed as greater number of days in other places on the IRS website. 

Even if he has an official custody agreement stating he has them more than half the time, they will go by number of nights?  That does not seem right.

[Mike9241]

IRS code sction 152 defined dependent.

The IRS REGS (regulations) clarify and expand on what is stated in the code (in other words Congress does such a poor job in writing the tax code that clarification and expansion of what the code says is needed. in some cases the code section is only 1 page long but the regulations for that code section can exceed 100 pages) 

this is from IRS reg 1.152-4(d) - Custodial parent -

(1) In general. The custodial parent is the parent with whom the child resides for the greater number of nights during the calendar year, and the noncustodial parent is the parent who is not the custodial parent. A child is treated as residing with neither parent if the child is emancipated under state law. For purposes of this section, a child resides with a parent for a night if the child sleeps -

(i) At the residence of that parent (whether or not the parent is present); or

(ii) In the company of the parent, when the child does not sleep at a parent's residence (for example, the parent and child are on vacation together).

(2) Night straddling taxable years. A night that extends over two taxable years is allocated to the taxable year in which the night begins.

(3) Absences.

(i) Except as provided in paragraph (d)(3)(ii) of this section, for purposes of this paragraph (d), a child who does not reside (within the meaning of paragraph (d)(1) of this section) with a parent for a night is treated as residing with the parent with whom the child would have resided for the night but for the absence.

(ii) A child who does not reside (within the meaning of paragraph (d)(1) of this section) with a parent for a night is treated as not residing with either parent for that night if it cannot be determined with which parent the child would have resided or if the child would not have resided with either parent for the night.

[Critter-3]

There is no such thing in the Federal tax law as 50/50, split, or joint custody.  The IRS only recognizes physical custody (which parent the child lived with the greater part, but over half, of the tax year.  That parent is the custodial parent; the other parent is the noncustodial parent.)

Who can claim the exemption and credits depends on who is the custodial parent. (By the IRS definition of custodial parent for tax purposes - this is not the same as the legal custody that a court might grant.).

The test that the IRS uses to determine the custodial parent is where the child lived for more than 1/2 (or greater part) of the year. The IRS will go so far as to require counting the nights spend in each household - that person is the custodial parent for tax purposes (if exactly equal and more than 183 days - The custodial parent is the parent with the highest AGI, if less than 183 days then neither parent has custody so the child cannot be claimed by either parent). And yes they are that picky.

See Custodial parent and noncustodial parent  under the residency test in Pub 17

https://www.irs.gov/publications/p17#en_US_2017_publink1000170899
 
Only the Custodial parent can claim: (Child would be listed as non-dependent EIC & CC only)
-Head of Household 
-Earned Income Credit
-Child Care Credit

The non custodial parent can only claim: (Child would be listed as dependent)
-The Exemption
-The Child Tax Credit

But only if specifically specified in a pre-2009 divorce decree, separation agreement or the custodial spouse releases the exemption with a signed 8332 form - after 2009 the IRS only accepts a signed 8332 form that must be attached to the non-custodial parents tax return.

Note. If you are the non-custodial parent filing your return electronically, you must file Form 8332 with Form 8453, (U.S. Individual Income Tax Transmittal) for an IRS e-file Return. See Form 8453 and its instructions for more details.  This must be done within 3 days of your e-filed return being accepted by the IRS.