.TAX12 File Extension
TurboTax 2012 Tax Return File
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What is a TAX12 file?
Tax return created with TurboTax 2012 tax preparation software; contains United States tax forms for the 2012 tax year along with data entered by the user; may be encrypted, which requires a password to open.
NOTE: While TAX12 files can be opened with TurboTax, most TurboTax 2012 tax returns are saved with a .TAX2012 file extension.