.DM1 File Extension

TaxAct Tax Return File

Files with the DM1 extension contain saved data in the ER/Studio database model format. This format describes database structure and relationships. It is used for visualizing the data model. And for g...

General Information

Title DM1 File Extension
Extension .dm1
Full Form TaxAct Tax Return File
File Type Data File
Developer TaxAct
MIME Type application/octet-stream

File Function

Primary Function Store tax data
Additional Functions Import, Export data
Features Encrypted, Proprietary format

File Characteristics

Quality High integrity
Supports Layers N/A
Supports Transparency N/A
Editable Via TaxAct

Use Cases

Personal Tax Filing Yes
Business Tax Filing Yes
Tax Information Storage Yes

Security and Practices

Security Risks Data breach
Best Practices Secure storage, Backup

Historical/Version Information

Initial Release Varies by tax year
Latest Version Corresponds to tax year

Associated Types

Similar Extensions .tax2019, .tax2020, .tax

Software Compatibility

Software Usage Policy OS Compatibility
TaxAct Paid, Free version Windows