Compress a PDF for IRS Documentation Upload Tool
IRS Documentation Upload Tool takes PDFs up to 15 MB. PDF Desk shrinks yours to just under it, right in this tab.
Max 15 MBPDF / JPEG / PNG
Files stay on this device. Nothing is uploaded.
IRS Documentation Upload Tool upload limits
| Document | Max size | Min size | Formats |
|---|---|---|---|
| Each uploaded file Up to 40 files; each PDF limited to 120 pages. | 15 MB | — | PDF, JPEG, PNG |
Where this number comes from
“They may then upload scans, photos or digital copies in JPEG, PNG or PDF format, with a maximum file size of 15 MB per file.”
— IRS expands secure digital correspondence for taxpayers (FS-2023-05), 2023-02. Checked October 2026.
PDF Desk aims at 14.5 MB, a little under the limit, because some portals count 1 KB as 1,000 bytes.
If the file will not get small enough
Scan in black and white at 150 DPI instead of colour. Remove blank and duplicate pages with Delete pages. If the portal allows several files, cut the PDF with Split PDF and upload the parts.
Other portals in United States
Limits of other portals
Questions
What is the maximum PDF size for IRS Documentation Upload Tool?
Each uploaded file: 15 MB. Source: irs.gov, checked October 2026.
IRS Documentation Upload Tool still rejects my PDF. Why?
Check that it is not password-protected, that the file name has no special characters, and that it is a few percent under the limit — some portals count 1 KB as 1,000 bytes.
Are my PDFs uploaded?
No. PDF Desk opens and writes the file with JavaScript inside your browser tab. Nothing is sent to a server, so it is safe for contracts, IDs and bank statements.