“I do have records of paying all of the bills at my current residence but my w2s have my old address on them also. What do you think?”--->Basically, you can claim your GF’s kids as your dependents as long as the kids must have lived with you the entire year and you must provide more than 50% of the kids’ total support during the year of 2013. If you have wrong address, you need to notify the IRS to ensure you receive any IRS refund or other correspondence. You may provide your new address in a variety of ways. You may correct the address by hand on the mailing label included in your tax package or simply write the new address on your return when you file. When your return is processed, the IRS will update your records.