- About Greenback
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Services + Pricing
- Federal Tax Return Preparation: FAQs
- Late Tax Return Preparation: FAQs
- Foreign Bank Account Reporting
- Foreign Account Tax Compliance Act Reporting
- Small Business Tax Return Preparation: FAQs
- Streamlined Filing Package for Tax Compliance: FAQs
- UK Self-Assessment Tax Return: FAQs
- Canadian Tax Return Preparation: FAQs
- Additional Expat Tax Services
- Consultations
- Tax Prep Process
- Account Assistance
- Completing Your Questionnaire
- Support
What Types of Files Can I Upload?
You can upload a variety of file types to your secure Greenback Tax Companion account. We accept:
- Image files: JPG, JPEG, PNG
- Document files: PDF, DOC, DOCX, XLS, XLSX
- Compressed files: ZIP (ideal for uploading multiple documents at once)
For the smoothest experience, ensure files are clearly labeled and under 5MB each. If your file is larger, we recommend compressing it before uploading.
If you haven’t registered yet, just click the “Get Started” button in the top right corner of your screen to jump right in!
Last updated on May 26, 2025