MOS 2.0 photo requirements: why most uploads are rejected on the first try

Since 27 April 2026, every karta pobytu application — temporary, permanent, EU long-term resident, and the new CUKR card — is filed exclusively online through the MOS portal at mos.cudzoziemcy.gov.pl. Paper applications submitted to the voivode after that date are rejected without consideration.

MOS 2.0 has no built-in photo editor. You upload a finished file, and the system validates it automatically. If the dimensions, format, or file size are off, the upload fails — and you cannot proceed with the rest of the application until the photo passes.

The official MOS 2.0 photo specification

These are the technical requirements the portal checks. Miss any one of them and the file is rejected at the upload step.

• File format: JPG only. PNG, HEIC (the iPhone default), and WEBP are not accepted.
• Minimum dimensions: 684×883 pixels (width × height). This matches the standard biometric ratio of 35 × 45 mm.
• Maximum file size: 2.5 MB.
• Photo age: taken within the last 6 months.
• Face coverage: 70–80% of the frame from chin to crown, eyes equidistant from the top and bottom edges.
• Background: plain, light, even. White or light grey, no shadows, no patterns, no objects.
• Look directly at the camera, neutral expression, mouth closed, eyes open.
• No glasses (unless medically required, with documentation), no headwear, hair must not cover the face.
• Sharp and in focus, natural skin tone, no filters, undamaged.

The 50 MB application-level cap

Beyond the photo, every MOS 2.0 application has a combined attachment limit of 50 MB. The photo itself is capped at 2.5 MB, so the remaining budget covers your full-colour passport scan, accommodation proof, fee receipts, and any employer or family documents. A photo that is technically valid but unnecessarily heavy eats into that budget.

Why an old photo will not work — even a “good” one

A common mistake is reusing the photo from a 2022 or 2023 PESEL registration, or a photo taken in a Ukrainian studio before relocating to Poland. Two things go wrong with that approach:

• Recency rule. The photo must be taken within the last six months. The MOS officer has the right to flag a photo that no longer reflects your current appearance.
• Pixel and format mismatch. Older photos were often digitised at 600 × 750 or were emailed as PNG, both of which fail the 684×883 px JPG requirement on a literal level.

The four rejection reasons that account for almost every failure

1. Wrong file format. iPhones save photos as HEIC by default. Sharing the photo through WhatsApp or email usually re-encodes it to JPG, but uploading directly from the Photos app often does not. Our cropper outputs JPG every time.
2. Wrong dimensions or aspect ratio. A standard phone photo is 4:3 or 16:9. The biometric requirement is roughly 4:5.14. Even a high-resolution photo will be rejected if its proportions are wrong.
3. Face too small. A “polite” photo with shoulders and chest visible leaves the face covering only 40–50% of the frame. MOS requires 70–80%. You either need to stand closer to the camera or crop tighter.
4. Busy or shadowed background. A coloured wall, wallpaper, or curtain will fail. So will a plain wall lit from one side that throws a shadow behind your head. The fix: stand against a white door in soft, even daylight, or remove the background digitally before cropping.

What happens after you upload the wrong photo

If a photo fails technical validation, MOS rejects the file at the upload step and you simply try again — no penalty. The dangerous case is a photo that passes automated checks (correct pixel size, correct format) but is later flagged manually by a voivode officer (background, expression, lighting). At that stage the application is already signed, and the system cannot edit or withdraw a submitted file. You receive a request for additional documents, which adds weeks to your timeline.

Does the same photo work for the CUKR card?

Yes. The CUKR card pathway opened on 4 May 2026 for Ukrainians who held PESEL UKR continuously for at least 365 days. It uses the same biometric photo standard as the regular karta pobytu — 684×883 px JPG, max 2.5 MB, plain light background. A photo prepared with our tool is valid for both pathways.