Tax consequences should ALWAYS be discussed with professional tax advisor - so regardless of what you read here, please...please check out any conclusions with your tax professional. The tax code is rather complicated, and life tends to be messy, with mitigating financial circumstances that could alter the "rule of thumb" findings -
That being said, I would look at the information at IRS.gov regarding capital gains issues. It will depend upon how long you and your husband have owned your home, whether or not it has been your principal residence for that entire time, etc. to determine if you meet the capital gains exclusion on principal residence. It used to be that you would have to "roll your investment" into another home to avoid capital gains, but the laws have changed and now it is not necessary to reinvest your gains up to certain limits. It's possible that you will owe no tax at all, even if you never purchase another home.