If you've tried uploading a document to ImmiAccount and received an error, you're not alone. The Department of Home Affairs imposes a strict 5MB per-file ceiling on all ImmiAccount uploads. Files even slightly over this limit are rejected outright — no partial upload, no warning about which page is causing the problem.
This page explains how the limit works, which file types are affected most, and how to bring oversized files under the ceiling without re-scanning everything from scratch.
What Is the ImmiAccount 5MB File Size Limit?
ImmiAccount enforces a 5 megabyte (5,120 KB) maximum per individual file across all visa application types, including partner visas (subclasses 820/801 and 309/100).
The limit applies per attachment, not per application. You can upload multiple files to a single document category, but each one must be under 5MB individually. A single 8MB PDF cannot be split across two upload slots — it must be compressed to under 5MB first.
Accepted file formats are:
- PDF — most common for multi-page documents
- JPEG / JPG — photos and scanned pages
- PNG — screenshots and digital documents
The Department does not publish a minimum resolution requirement, but compressed files that remain legible are accepted routinely.
Which Files Tend to Exceed the Limit?
Some document types consistently produce oversized files:
| Document Type | Common Issue |
|---|---|
| Multi-page bank statements | Scanned at 300 DPI, each page is 500KB–1MB |
| Joint lease agreements | 10–20 pages of a standard tenancy contract |
| Photo evidence folders | Uncompressed JPEG exports from phones |
| Payslips (multiple months) | Combined into a single PDF |
| Statutory declarations | High-resolution scans of handwritten documents |
A standard smartphone camera produces JPEG files of 3–8MB per photo. A 10-page bank statement scanned at 300 DPI will typically land between 4–10MB as a PDF. Both will frequently exceed the 5MB ceiling.
Why Compressing for ImmiAccount Is Different to General Compression
Most online PDF compressors target file sharing or email — they compress aggressively and often reduce legibility. ImmiAccount has a different requirement: the file needs to be readable by a case officer, which means text must remain sharp and photos must clearly show the relevant content (joint names, dates, signatures).
The practical target is to get files under 4.5MB to give a small buffer below the 5MB ceiling, while keeping text at a resolution where it can be read on screen without zooming.
For images, this typically means:
- JPEG quality 70–85% (not lower)
- Resizing only if the original is larger than A4 at 150 DPI
For PDFs, this typically means:
- Downsampling embedded images to 150 DPI
- Removing duplicate embedded assets (common in scanned documents)
- Not removing pages (a case officer needs the complete document)
How to Compress Files for ImmiAccount
Option 1 — VisaPrep's free in-browser compressor
VisaPrep's Immi-Optimizer compresses PDFs and images directly in your browser. Nothing is uploaded to a server — the file is processed locally and downloaded back to your device.
The tool is calibrated specifically for the 5MB ImmiAccount ceiling and flags each file as compliant or over-limit before you download. It handles both JPEG/PNG image compression and PDF optimisation (image downsampling and deduplication).
Open the free file compressor →
Option 2 — Manual compression
For PDFs: Adobe Acrobat's "Reduce File Size" or "Optimise PDF" option (available in the free web version at acrobat.adobe.com) can bring most PDFs under 5MB. Set image resolution to 150 DPI when prompted.
For images: Export from your photo app at "medium" quality (around 70–80%) rather than "best". On macOS, Preview's Export function lets you set JPEG quality with a slider.
Option 3 — Re-scan at lower resolution
If you're scanning physical documents, scan at 150 DPI rather than 300 DPI. For most A4 documents this produces a file of 200–500KB per page — well within the limit even for 10-page documents — while remaining fully legible on screen.
What Happens If You Upload the Wrong File Size?
ImmiAccount will display an upload error and reject the file. The error message typically reads something like "The file exceeds the maximum allowed size". Your application is not affected — the rejection happens before the file is attached.
You can retry the upload with a compressed version immediately. There is no penalty or flag on your application for failed upload attempts.
Organising Your Files Before Upload
Beyond the size limit, ImmiAccount requires documents to be allocated to specific category slots. Partner visa applicants upload evidence across the four official relationship assessment categories:
- Financial aspects of the relationship
- Nature of the household
- Social aspects of the relationship
- Nature of the commitment
Knowing which documents belong in which category before you open ImmiAccount saves significant time. VisaPrep's free checklist maps all four categories and tracks which standard slots you have documents ready for.
Open the free document checklist →
Administrative Disclaimer: VisaPrep is a clerical file organisation and formatting software utility. It does not provide immigration assistance, legal advice, or eligibility assessments under the Migration Act 1958 (Cth). All information on this page is a passive relay of publicly available third-party data. The ImmiAccount upload specifications described are sourced from publicly available Department of Home Affairs guidance. Users are entirely responsible for the legal accuracy and sufficiency of their own applications.