USCIS Online Filing Evidence document upload
Official requirementAdd each required file. Conditional files are marked optional.
Requirement verified August 21, 2026 · Source: USCIS — Tips for filing forms online ↗
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Documents this application needs
Supporting evidence file
PDF/JPG · ≤12000 KBAdditional evidence file
Only if it applies to youPDF/JPG · ≤12000 KB0/1 files ready
Sources disagree on this
Megabyte interpretation
USCIS says files "must not be larger than 12MB" without defining MB; a binary reading allows ~12.58 million bytes.
How we handle it: UploadPrep targets 12,000,000 bytes, the stricter decimal reading, so the file passes either way.
Accepted format subset
The tips page also accepts TIF/TIFF for some forms, which this editor does not produce.
How we handle it: UploadPrep prepares PDF or JPEG, both universally accepted by myUSCIS.