What is a T18 File Type?
When you start a tax return using a software program, you can choose to import data from a previous year by importing a .T17 file. You can import tax information from your H&, R Block or d'account; another tax service, such as TurboTax or TaxAct. If you do not have information to import, you will be asked to enter your basic information and social security number. It then guides you through the process of adding other tax information, including any changes in life in 2018, income, deductions, adjustments and credits at the federal and state levels.
When you save your tax return, H& Software; R Bloc d' Tax creates the T18 file to record your progress. This allows you to close your tax return and resume it at a later date. Once you have completed your tax return, you can send it electronically directly from the H& software or print and mail the return to the appropriate tax authorities.
The T18 file can also be used as a backup copy of a tax return for archiving purposes. To create a backup in Tax Software select File → Backup Tax Return....
File extension attached to the H& tax returns; R Block indicates the year of filing. T18 stores information for the 2018 tax returns, T17 stores information for the 2017 tax returns, etc.