Just as an example, assume that a married couple has a modified adjusted gross income of $160,000. The applicable phaseout to qualify for the tax credit is $150,000, and the couple is $10,000 over this amount. Dividing $10,000 by $20,000 yields 0.5. When you subtract 0.5 from 1.0, the result is 0.5. To determine the amount of the partial first-time home buyer tax credit that is available to this couple, multiply $8,000 by 0.5. The result is $4,000.

Here’s another example: assume that an individual home buyer has a modified adjusted gross income of $88,000. The buyer’s income exceeds $75,000 by $13,000. Dividing $13,000 by $20,000 yields 0.65. When you subtract 0.65 from 1.0, the result is 0.35. Multiplying $8,000 by 0.35 shows that the buyer is eligible for a partial tax credit of $2,800.

Please remember that these examples are intended to provide a general idea of how the tax credit might be applied in different circumstances. You should always consult your tax advisor for information relating to your specific circumstances.

The fact that the credit is refundable means that the home buyer credit can be claimed even if the taxpayer has little or no federal income tax liability to offset. Typically this involves the government sending the taxpayer a check for a portion or even all of the amount of the refundable tax credit.

For example, if a qualified home buyer expected, notwithstanding the tax credit, federal income tax liability of $5,000 and had tax withholding of $4,000 for the year, then without the tax credit the taxpayer would owe the IRS $1,000 on April 15th. Suppose now that the taxpayer qualified for the $8,000 home buyer tax credit. As a result, the taxpayer would receive a check for $7,000 ($8,000 minus the $1,000 owed).

Yes. For the purposes of the home buyer tax credit, a principal residence that is constructed by the home owner is treated by the tax code as having been “purchased” on the date the owner first occupies the house. In this situation, the date of first occupancy must be on or after January 1, 2009 and before December 1, 2009.

In contrast, for newly-constructed homes bought from a home builder, eligibility for the tax credit is determined by the settlement date.

No. A tax credit is a dollar-for-dollar reduction in what the taxpayer owes. That means that a taxpayer who owes $8,000 in income taxes and who receives an $8,000 tax credit would owe nothing to the IRS.

A tax deduction is subtracted from the amount of income that is taxed. Using the same example, assume the taxpayer is in the 15 percent tax bracket and owes $8,000 in income taxes. If the taxpayer receives an $8,000 deduction, the taxpayer’s tax liability would be reduced by $1,200 (15 percent of $8,000), or lowered from $8,000 to $6,800.

Yes. Prospective home buyers who believe they qualify for the tax credit are permitted to reduce their income tax withholding. Reducing tax withholding (up to the amount of the credit) will enable the buyer to accumulate cash by raising his/her take home pay. This money can then be applied to the downpayment.

Buyers should adjust their withholding amount on their W-4 via their employer or through their quarterly estimated tax payment. IRS Publication 919 contains rules and guidelines for income tax withholding. Prospective home buyers should note that if income tax withholding is reduced and the tax credit qualified purchase does not occur, then the individual would be liable for repayment to the IRS of income tax and possible interest charges and penalties.

Further, rule changes made as part of the economic stimulus legislation allow home buyers to claim the tax credit and participate in a program financed by tax-exempt bonds. Some state housing finance agencies, such as the Missouri Housing Development Commission, have introduced programs that provide short-term credit acceleration loans that may be used to fund a downpayment. Prospective home buyers should inquire with their state housing finance agency to determine the availability of such a program in their community.

Yes. The law allows taxpayers to choose ("elect") to treat qualified home purchases in 2009 as if the purchase occurred on December 31, 2008. This means that the 2008 income limit (MAGI) applies and the election accelerates when the credit can be claimed (tax filing for 2008 returns instead of for 2009 returns). A benefit of this election is that a home buyer in 2009 will know their 2008 MAGI with certainty, thereby helping the buyer know whether the income limit will reduce their credit amount.

Taxpayers buying a home who wish to claim it on their 2008 tax return, but who have already submitted their 2008 return to the IRS, may file an amended 2008 return claiming the tax credit. You should consult with a tax professional to determine how to arrange this.

Prospective home buyers who believe they qualify for the tax credit are permitted to reduce their income tax withholding. Reducing tax withholding (up to the amount of the projected credit) will enable the buyer to accumulate cash by raising his/her take home pay. This money can then be utilized toward the down payment.

Buyers are able to adjust their withholding amount on their W-4 via their employer or through their quarterly estimated tax payments. IRS Publication 919 contains rules and guidelines for income tax withholding. Prospective home buyers should note that if income tax withholding is reduced and the tax credit qualified purchase does not occur, then the individual would be liable for payment to the IRS of income tax and possible interest charges and penalties.