- Can I fax forms to the IRS?
- Yes, but only specific workflows accept fax (e.g., identity verification responses, certain notice responses, correspondence exams). Always use the fax number listed on your IRS notice or instructions. If none is provided, call the IRS to confirm the correct destination.
- What is the correct IRS fax number for my case?
- IRS fax numbers are case- and department-specific. Use the number in the upper-right of your CP/Letter notice or the instructions you received. For international taxpayer assistance use +1 (267) 941‑1055; for the Taxpayer Advocate Service use +1 (855) 297‑0055. Verify before sending.
- How should I format and prepare my IRS fax?
- Create a single PDF in this order: cover sheet → IRS notice/letter → your response → supporting documents. Use black text on white background, 300 DPI if scanned, and number pages (1/7, 2/7…). Put your name, last 4 of SSN/TIN, notice number, tax year, and phone on the cover.
- Is it secure to fax the IRS?
- Use an encrypted online fax service. Onetime Fax uses SSL encryption in transit and deletes files after delivery. Include only the last 4 digits of SSN/TIN on the cover sheet and minimize sensitive data where possible.
- How much does it cost to fax the IRS?
- Retail locations often charge per page. With Onetime Fax, the price is a flat $5 per fax (unlimited pages).
- When should I send my IRS fax?
- Send during IRS business hours for faster handling. For time‑sensitive matters, fax and also mail a certified copy as backup.
- My IRS fax failed. What should I do?
- Recheck the destination number from your notice, resend as a clean PDF, and try during business hours. If busy, retry later. See the troubleshooting guide for more fixes.
- Where can I find a cover sheet template for IRS faxes?
- Use our free templates and include the required identifiers: name, last 4 of SSN/TIN, notice/letter number, tax year, phone, and page count.