You’ve downloaded the new digital bank everyone keeps talking about. You’ve typed in your details, picked a username and set up a PIN. Then you reach the identity check and it all stops. “We couldn’t verify your document. Please try again.” You try again and get the same message. Twenty minutes later you’re holding your passport at odd angles under the kitchen light, wondering why something this simple feels impossible.
If that sounds familiar, you’re far from alone. Identity verification, which the industry calls KYC (“Know Your Customer”), is one of the most common points where people give up on signing up for a fintech app. E-wallets, neobanks, investment platforms and crypto exchanges all have to confirm who you are before they let money move. Regulators require it, and fraud prevention depends on it. The checks are mostly automated, though, and automated systems are fussy in ways a human reviewer wouldn’t be.
The good news is that most rejections come down to a few fixable issues. Once you know what the system is looking for, getting approved on the first try is much easier.
What’s actually happening when you upload your ID
When you submit a photo of your ID card, passport or driver’s license, a person almost never looks at it first. Software does. It reads the text on the document, compares the photo on the ID with the selfie you take, checks security features such as holograms and fonts, and looks for signs of tampering. Some apps also cross-check your details against government or credit databases.
All of that depends on image quality. If the software can’t clearly read your date of birth, or the corners of the card are cut off, it won’t guess. It rejects the upload and asks for another. The error messages are often vague, so you’re left trying to work out what went wrong.
Think of it this way: you aren’t proving your identity to a person. You’re giving a machine a clean, readable copy of a document. That shift changes how you approach the whole process.
The usual suspects: light, focus and framing
Glare causes the most rejections. Plastic ID cards and passport photo pages reflect light, and a bright spot over your name or ID number makes that part unreadable. Overhead ceiling lights are the worst, because they shine straight down onto the card. Soft, indirect light works far better, such as sitting near a window during the day. If you see a shiny patch on the preview, tilt the card slightly until it disappears.
Focus comes next. Phone cameras are excellent, but they sometimes focus on the table instead of the card, especially up close. Tap the screen on the document before you capture it, and hold steady for a second. A slightly blurry photo might look fine to you but fail the text recognition step.
Framing matters more than most people expect. Many apps want all four corners of the document visible, with a small margin around the edges. Cropping too tightly can look like tampering to the software, because a cut-off border is one way people hide edits. Use a plain, dark background that contrasts with your card. A patterned tablecloth or a busy desk can confuse edge detection.
Finally, take the photo of the real document. Photographing a photocopy, or your ID shown on another screen, is almost always rejected. Verification systems are trained to spot exactly that.
The selfie step people underestimate
After the document comes the “liveness” check. You’ll usually be asked to take a selfie or short video, sometimes turning your head or blinking on cue. The system compares your face with your ID photo and confirms you’re a real person, not a printed picture.
A few habits help a lot here. Take off your glasses if they reflect light, and remove hats or anything covering your forehead. Face a light source rather than sitting with a bright window behind you, which turns your face into a silhouette. Keep your expression neutral, close to how you looked in your ID photo. If your passport picture is ten years old and you now have a beard, the system can usually still match you, but good lighting gives it the best chance.
The hidden culprit: file formats and size limits
This is the one that catches people off guard, especially when an app lets you upload from your gallery instead of using the in-app camera.
Many platforms have strict rules about which file types they accept and how large an upload can be. JPG is the most widely supported format. Plenty of apps either don’t accept PNG files or limit uploads to a few megabytes. That matters because screenshots, scans and edited images often save as PNG by default, and PNG files tend to be much larger than JPGs of the same picture. If you scanned your passport with a scanner app or took a screenshot of a document, you might be uploading a file the system silently rejects or can’t process.
The fix is quick. Before uploading, run the image through a free PNG to JPG file converter so you end up with a smaller, widely accepted file that keeps your text sharp. It takes less than a minute and can save you a frustrating round of failed attempts. It’s worth doing for proof of address too: utility bills and bank statements are often downloaded as screenshots or scans and run into the same format limits.
A good habit is to check the app’s help page or upload screen for accepted formats before you start. If it says “JPG, max 5MB,” take that literally.
Small details that trip up verification
Sometimes the image is perfect and you’re still rejected. In that case, look at the information itself. Does the name you typed match your ID exactly, including middle names and the order of names? Small differences in spelling or transliteration can cause a mismatch, which is common in Asia, where names may be romanized in different ways on different documents. Use the version printed on the document you’re uploading.
Check expiry dates as well. An expired ID will be rejected even if everything else is fine. And if you’ve moved recently, make sure the address on your proof-of-address document matches what you entered in the app.
When it still won’t go through
If you’ve fixed the lighting, framing and file format and still can’t get approved, stop retrying. Repeated failed attempts can sometimes flag your account for manual review or put a temporary lock on new tries. Contact the app’s support team through its in-app chat or help center instead. Many platforms can verify you manually, accept an alternative document, or tell you exactly which check failed. A two-minute conversation often solves what twenty minutes of retrying couldn’t.
It’s also worth checking whether the app supports your document type at all. Some platforms only accept passports from certain countries, or don’t support older versions of national ID cards.
Getting it right the first time
Identity verification can feel like a pointless hurdle, but it protects you as much as the platform. It makes it harder for someone else to open an account in your name or move money they shouldn’t. Once you understand that a machine is reading your documents, the steps make sense: good light, sharp focus, the whole document in frame, matching details, and a file format the system accepts.
Next time you sign up for a digital bank, e-wallet or exchange, take two minutes to prepare first. Find a spot with soft light, have your physical ID ready, check the accepted file formats, and convert any screenshots or scans before you upload. The difference between a first-try approval and an evening of “please try again” usually comes down to small preparation like that.