The IRS Document Upload Tool's limits
According to the IRS's official explainer on the Document Upload Tool (the text script of its video), checked in September 2026, the tool accepts JPEG, PNG or PDF files. Each submission can include up to 40 files, each up to 15 MB. Scans, photos and digital copies are all accepted, and the IRS warns that special characters in file names can cause upload errors.
You usually reach the tool from your notice, through the QR code or the address printed on it. Only use it when your notice tells you to.
Why a file goes over 15 MB
Typed forms are small. Heavy files almost always come from color photos or scans of many pages, like a year of receipts. That's exactly what ConvertirDocs compresses: it recompresses the photos inside the PDF and leaves text and vector graphics untouched, so real text stays selectable.
The tool shows the size before and after. If it can't reach the target, it gives you the smallest version it could make and explains why.
Free and private
ConvertirDocs is 100% free: no sign-up, no account and no usage limits. Compression runs in your browser, so your tax documents never leave your device.
Common mistakes and upload errors
Blurry photos are a bigger problem than size: shadows, glare and tilted pages make amounts hard to read. Don't compress until numbers blur. Name files plainly with letters, numbers and hyphens, like 2025-childcare-receipts.pdf, and avoid symbols such as #, & or %.
If an upload fails, check the file type, the 15 MB size, and the name for special characters. A password-protected bank PDF can't be opened by a reviewer, so remove the password with “Unlock PDF” if you have it.