Almost all forms have been approved
IRS officially started accepting tax returns on the 29th of January but not all the forms have been approved. While most forms, including the 1040 series, were ready on the 30th there are still some forms and instructions that have not been finalized by the IRS. For example if you pulled money out of your retirement account last year you will need to wait till at least February 6th to file your return. ZipTax has been made aware that some online tax companies allowed or are allowing taxpayers to file prior to forms being approved. In these cases we have found that an amended return will now be required to correct the taxes and credits based on the now approved forms.
If you have questions or completed your tax return prior to the 30th of January you should have your taxes reviewed to see if they will require corrections.