My initial reaction is claiming additional deductions shouldn't cause you to need to pay in to taxes next year. I'm not a tax attorney, so you may want to get a sample 1040 and complete it based upon your husband's income, and then check the total tax you will expect to owe (if any) and compare it to how much is being withheld from your husband's pay. Based upon some rough calculations for your 2008 tax return that you will file in 2009, I think you would be able to take an approx. $11,000 standard dedecution (assuming you don't itemize dedecutions) along with approx. $14,000 in personal exemptions (including your new child), which would leave you with no more than $21,000 of taxable income based upon your husband's current salary. And that is at the highest end since it doesn't take into account any pre-tax deductions that may already be taken out of your husband's paycheck at his work (eg., health insurance). On $21,000 of taxable income, the tax would potentially be approx. $2,700; however, you will still probably get a $2,000 child tax credit for your 2 kids, leaving you with $700 in tax. If your huband's paystub shows more than $60 in federal income tax withheld, then I would suggest that you have your husband amend his W-9 with additional exemptions and resubmit it to his payroll department. He might even claim more than 4 exemptions (maybe even 5). We currently claim substantially more than 4 exemptions even though my husband and I only have 2 kids currently. Good luck.