good general info
read the first document entirely, it does not specifically show how the credit affects payroll IMO
**********************************************************
Check Your Withholding
How will the Making Work Pay tax credit affect you?
Most wage earners will benefit from larger paychecks in 2009 and 2010 as a result of the changes made to the federal income tax withholding tables to implement the Making Work Pay tax credit. However, some people may find that the changes built into the withholding tables result in less tax being withheld than they prefer.
If you're not eligible for the Making Work Pay tax credit, withholding changes could mean a smaller refund next spring. A limited number of people, including those who usually receive very small refunds, could in some situations owe a small amount rather than receiving a refund. Those who should pay particular attention to their withholding include:
Pensioners (see more information under Pensioners, below)
Married couples with two incomes
Individuals with multiple jobs
Dependents
Some Social Security recipients who work
Workers without valid Social Security numbers
The Making Work Pay tax credit, normally a maximum of $400 for working individuals and $800 for working married couples, is reduced by the amount of any Economic Recovery Payment ($250 per eligible recipient of Social Security, Supplemental Security Income, Railroad Retirement or Veteran's benefits) or Special Credit for Certain Government Retirees ($250 per eligible federal or state retiree) that you receive. If you are affected by this reduction, you should review your withholding to ensure that sufficient funds have been withheld to meet your tax obligation.
***************************************************************
I thought it was well-written and pretty specific. They wanted to give married working couples $800 and implement it through withholding which meant you should have expected to see an extra take-home pay of of
$31 or every two weeks. (might have been a bit more if they didn't do this the whole yr) They also warned you that some folks might have more withheld than they wanted. I don't know if you ever said how much more in take-home pay you started getting.