do not use your last check stub! it may be missing info that is crucial to a correct return. if you use a check stub and e-file, then the return can not be recalled if you find you entered incomplete or incorrect data. you will have to wait until the original return is fully processed and then file an amended return. if you go from a refund to balance due not only will you owe the additional taxes but also penalties and interest. TT will accept a return for e-filing earlier than the IRS will open e-filing. that means it just sits on TT servers until federal e-filing opens in late January.
