Forms don't go instantly from the IRS web site into TurboTax. After the IRS issues a form TurboTax has to update the software, test it, and submit the updated software to the IRS for approval before it can be released to users. There are a huge number of forms that all have to be updated for the new tax year. TurboTax will give priority to the ones that are used the most, or that are most likely to be needed by people who file early. Go to the following link for a list of the estimated availability dates for federal tax forms in TurboTax.
IRS forms availability table for TurboTax individual (personal) tax products
