Government agency and tribunal upload limits

File size limits and accepted formats for immigration, tax and tribunal document upload portals, with each agency's own published source.

Portals: 5
Verified: 4
Checked: Oct 21

Canada

Canada: size limits and verification status
Portal	Size limit	Page limit	Data
Canadian International Trade Tribunal (CITT) electronic filingFederal, tribunalVerified	100 MBper file	None stated	Verified
CRA Submit documents onlineFederal, agencySources conflict	150MBper submission	None stated	Sources conflict
IRCC online accounts document uploadFederal, agencyVerified	4 MBper file	None stated	Verified

United States

United States: size limits and verification status
Portal	Size limit	Page limit	Data
National Visa Center (NVC) / CEAC document uploadFederal, agencyVerified	2 MBper file	None stated	Verified
USCIS online account evidence uploadFederal, agencyVerified	12MBper file	None stated	Verified

Size limits are the per-file figure each portal publishes, or per submission where no per-file limit exists. Open a portal for every rule and its source.