What is the maximum file size for USCIS online filing?

USCIS online filing commonly accepts up to 12 MB per file. Formats are typically PDF, JPG and JPEG, with TIF/TIFF accepted on some forms. Confirm on the official portal before a deadline-critical submission, as agencies change these limits without notice.

What file formats does USCIS accept?

PDF, JPG and JPEG are accepted for most online filings, with TIF and TIFF accepted for some forms. PNG and HEIC are commonly rejected. Files must not be password-protected.

What resolution should I scan documents at for USCIS?

300 DPI is the usual recommendation. Higher resolutions increase the file size without making the document any more readable to a reviewer.

My USCIS upload keeps failing. What is wrong?

It is usually one of three things: the file is over the 12 MB cap, it is in a rejected format such as PNG or HEIC, or the document is not legible because of shadow, glare or a bad angle. Fixing the lighting and angle first also makes the file compress much smaller.

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USCIS file size limit: what you can upload in 2026

The short answer. USCIS online filing commonly accepts up to 12 MB per file, in PDF, JPG or JPEG (some forms also take TIF/TIFF). Scans should be legible, and 300 DPI is the usual recommendation. Do not password-protect the file.

If your evidence upload keeps failing, it is almost always one of three things: the file is over the size cap, it is in a format the portal will not take, or the text is not legible enough to read. Here is each one.

Table of 2026 upload limits: USCIS 12 MB, IRS 15 MB, DS-160 240 KB, passport photo 54 KB to 10 MB — The caps people actually get rejected for, side by side. USCIS is 12 MB per file — the IRS allows more, and the DS-160 photo allows far less.

The limits, side by side

What	Limit
Maximum size per file	12 MB
Accepted formats	PDF, JPG, JPEG (TIF/TIFF on some forms)
Recommended scan resolution	300 DPI
Password protection	Not permitted

Checked against the official USCIS guidance in August 2026. Agencies change these without notice — confirm on the portal before a deadline-critical filing.

Why an upload gets rejected

1. The file is too large

A photo from a modern phone is 4–8 MB before you have done anything to it. Photograph five pages of a document and combine them and you are well past 12 MB. The fix is not to crank the JPEG quality down until it fits — that is what turns small print into mush. Reduce the resolution to 300 DPI, switch a text document to bitonal (pure black and white), and the file typically drops by 90% with the text still crisp.

2. Wrong format

PNG and HEIC are the usual culprits. iPhones save HEIC by default, and many portals reject it outright. Convert to JPEG or PDF before you try.

3. Not legible

A reviewer has to read it. Shadow across the page, flash glare over a data field, or a photo taken at an angle will all draw a request for evidence even when the document itself is perfect.

One thing worth knowing. USCIS and the IRS have different caps — 12 MB and 15 MB respectively — and the DS-160 visa photo is far stricter at 240 KB. There is no single government standard. Always take the number from the portal you are actually using.

How to get a scan under 12 MB and keep it readable

Photograph the document flat, filling the frame, in indirect daylight rather than with flash.
Correct the angle and lighting first — a straightened, evenly lit page compresses far better than a shadowed one, because compression spends bits on the shadow gradient.
Set the output to 300 DPI. Higher adds size without adding legibility for a reviewer.
For a text document, use bitonal. For an ID with security features or a photograph, keep colour.
Check the resulting file size before you submit, not after the portal rejects it.

Bring your file under 12 MB without wrecking the text

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Every upload limit in one tableUSCIS, IRS, DS-160, passport, email — each figure sourced and dated. DS-160 photo requirements600×600 square, JPEG only, 240 KB — and why it differs from the passport photo. Fix a blurry document photoShadow, glare and angle, corrected in your browser. Document too large to uploadHit an exact MB limit without destroying the text. HEIC file not acceptedWhy an iPhone photo gets rejected, and how to convert it. Passport renewal photoSquare, 600–1200 px, 54 KB to 10 MB — the online renewal spec. Scan at 300 DPI with a phoneWhat DPI means for a phone photo, and how to actually hit 300. Combine documents into one PDFMerge several pages into one file without blowing the size cap. DocVerify vs DOCSUPRATwo different products with a similar name. 1099 or 1040 too large?The IRS cap is 15 MB per file. DOCSUPRA for teamsBatch queue, seats and a dated compliance report. Batch-process 50 documentsOne queue, one combined PDF per matter.

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