wife gets $200,000 and gifts $100,000 to husband, what does she pay taxes on and what does the husband pay tax

Answer 1

Well! As a US citizen, you've unlimited transfer between the husband and the wife. For Non-resident alien and resident alien, they are a bit different. No Tax on the Person Receiving your Gift or Estate No Income Tax Deduction Making a gift or leaving your estate between spouses does not ordinarily affect your federal income tax. You cannot deduct the value of gifts you make between the wife and the husband.

Where does the wife gets $200,000?
Here are 39 pages of possible taxable and nontaxable income
http://www.irs.gov/pub/irs-pdf/p525.pdf

PS Essentially there is no gift tax (assuming they are US citizen). However, they may need to pay income taxes for the $200,000. I am sure they would endup filling the tax together. I am sure there exist no tax benefit for them to file seperate return (unless one has a huge amount of itemized deduction and the other has some as well).

Long Crazy Explanation:

For calendar year 2006, the first $120,000 of gifts to a spouse who is not a citizen of the United States (other than gifts of future interests in property) are not included in the total amount of taxable gifts made during that year.
No Gift Tax Return Needed
Generally, you do not need to file a gift tax return unless you give someone, other than your spouse, money or property worth more than the annual exclusion ($11,000 in 2002, 2003, 2004 and 2005; $12,000 beginning in 2006) for that year. Although a return may be required, no actual gift tax will become payable until the cumulative lifetime taxable gifts exceed the applicable exclusion amount. The donor is primarily responsible for the payment of the Gift Tax. An estate tax return generally will not be needed unless the estate is worth more than the applicable exclusion amount ($1,000,000 for 2002) for the year of death. This amount is shown in the section under Unified Credit.

No Tax on the Person Receiving your Gift or Estate
The person who receives your gift or your estate generally will not have to pay any gift tax or estate tax because of it. In addition, that person will not have to pay income tax on the value of the gift or inheritance received. NOTE: There are some technical applications for "Income in Respect of Decedent" under §691 that will have to be considered for income earned but not otherwise taxed prior to the date of death.

No Income Tax Deduction
Making a gift or leaving your estate to your heirs does not ordinarily affect your federal income tax. You cannot deduct the value of gifts you make (other than gifts that are deductible charitable contributions).

Generally, the following gifts are not taxable gifts.

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Gifts that are not more than the annual exclusion for the calendar year.
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Tuition or medical expenses you pay for someone (the educational and medical exclusions).
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Gifts to your spouse.
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Gifts to a political organization for its use.
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Gifts to qualified charities (a deduction is available for these amounts).

Answer 2

Gifts between spouses are not subject to gift tax.

What she will pay taxes on could be zero to $200,000, depending on where she got the $200,000 - you don't say where it came from.

Answer 3

gift tax, well are as high as 50%. so 100k to uncle sam.