.TAX File Extension

Tax Return File

The IRS requires Form 4868 to file a federal extension. Each state has unique requirements for its own tax extension. You may wonder what's next after filing an extension. We've addressed common quest...

General Information

Title TAX File Extension
Extension .tax
Full Form Tax Return File
File Type Data File
Developer Intuit
MIME Type application/octet-stream

File Function

Primary Function Store tax data
Additional Functions Tax return submission
Features Encrypted, Formatted text

File Characteristics

Quality Structured data
Supports Layers N/A
Supports Transparency N/A
Editable With software

Use Cases

Personal Tax Filing Yes
Business Tax Filing Yes
Tax Professionals Yes

Security and Practices

Security Risks Sensitive data exposure
Best Practices Encryption, Secure storage

Historical/Version Information

Initial Release Varies by software
Latest Version Yearly updates

Associated Types

Similar Extensions .tax2009, .tax2018, .tax2020

Software Compatibility

Software Usage Policy OS Compatibility
TurboTax Paid Windows, Mac
H&R Block Tax Software Paid Windows, Mac
TaxAct Paid Windows