.TT18 File

The tt18 file extension is associated with TurboTax 2018, a tax preparation and financial solution for Mac and Microsoft Windows, developed by Intuit.

The tt18 file stores Canadian federal and provenience tax data as well as income and personal data.

TT18 files are used for storing tax information in electronic form, should be printed and mailed.

Files with tt18 file extension are related to the TurboTax 2018, a tax preparation and financial software for Mac and Windows. A tt18 file contains tax return data, should be printed and mailed.

How to open:

You can open and work with these *.tt18 files using TurboTax accounting software.

How to convert:

It is likely that tax returns forms can be exported to PDF at least. Perhaps some data conversion within TurboTax is also possible.