Inside UKVI: how the Atlas caseworking system holds a visa applicant's record

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UKVI inside series · Part 1

How UKVI Sees Your Visa Application: From CID to Atlas, Explained for Pakistani Applicants

Most applicants picture a caseworker opening a folder with their name on it. That is not what happens. Since the Home Office moved from its old CID database to a system called Atlas, every UK visa decision starts from a single record that already knows your past applications, your fingerprints, your travel and, in some cases, decisions made about you by other countries. This guide explains what Atlas is, what it holds, and what that means before you press submit.

At a glance
Old systemCIDCase Information Database, in use from 2000
New systemAtlasFully in use by 2025, CID switched off
What changedPerson, not caseOne record links everything about you
Your rightSee your recordSubject access request, free, about one month

What CID was and why it had to go

For about 25 years, UK visa and status decisions were recorded on the Case Information Database, known inside the Home Office as CID. It was first implemented in 2000. CID was built around cases: each application was a file, and officers often had to retype the same details into other systems. By 2019 the Public Accounts Committee was warning that the Home Office was making decisions about people’s rights using data from systems that were “not fit for purpose”.

The replacement programme took about eight years. The Home Office’s own account describes “a complex 8 year journey” interrupted by Brexit, Covid, the Afghan resettlement schemes and the Ukraine schemes. Delivery dates slipped at least seven times. Contracts signed from 2020 for the new system were reported at around GBP 79.7 million, with Accenture, Mastek and PA Consulting among the suppliers.

A British passport on a table; every UK application now links to one person record in Atlas
Every application, old or new, now hangs off one person record. Photo: Unsplash.
Timeline from CID in 2000 to the switch off of CID and full use of Atlas in November 2025
Twenty five years from CID to Atlas, with the warnings and errors along the way.

What Atlas is

Atlas is the Home Office’s caseworking system for visas, status and asylum work. The Home Office says it is built and owned in house by its Migration and Borders Technology Portfolio, and that by November 2025 more than 460 teams were working on it and CID had been “successfully decommissioned”.

In practical terms, Atlas does five things that affect you:

  • It receives your online application automatically. The GOV.UK form you complete feeds straight into Atlas, which prepares the case for a team without anyone retyping it. A spelling mistake in your form becomes a data point on your record.
  • It sends the automated messages. The “application received” and “decision made” emails are generated by Atlas at set milestones through GOV.UK Notify. They are not written by the officer handling your case.
  • It produces the decision notice. Decision letters are built from templates inside Atlas, which is why letters from different officers read almost identically.
  • It feeds management reporting. Tools called Vantage and Entity Search let managers and other teams search Atlas data alongside other Home Office systems.
  • It speeds up routine work. The Home Office says productivity on student and skilled worker cases roughly doubled or tripled after the move.

Why Atlas treats you as a person, not a case

The most important change for an applicant is the shift from a case file to a person record. In CID, a 2014 visit application and a 2026 student application could sit as two separate files. In Atlas, both hang off one identity: you.

That record is tied to your biometrics. Fingerprints and facial images are stored on a separate biometrics system and matched every time you enrol again. The Home Office’s biometrics guidance says fingerprints taken from July 2021 are generally kept for up to 15 years, and reusing them on a new application can restart that period. Fingerprints are also used to check “applications against existing records” and to confirm identity when documents alone cannot.

The consequence is simple. A new passport, a changed spelling of your name, or a different agent does not create a fresh start. Your fingerprints connect the new application to everything before it.

From the published guidance and data protection assessments, an Atlas person record can bring together:

  • Every previous UK application, including ones made under a different passport or name, once biometrics match.
  • Every decision, including negative decisions and their reasons.
  • Entry and exit records collected by Border Force.
  • Aliases and alternative spellings found through matching.
  • Match results from the five country fingerprint sharing arrangement with the United States, Canada, Australia and New Zealand. The guidance says a match can return “previously unknown identity details and aliases”, past decisions in that country, where and when your biometrics were taken, and travel document details.
  • Information shared by sponsors, such as a university reporting that you did not enrol.

What this means in practice: an undeclared negative decision from the United States or Canada can surface through a fingerprint match, even if you never mention it. Declaring it honestly is always safer than hoping it stays hidden.

Diagram showing an Atlas person record linking previous applications, decisions, border records, aliases, fingerprint matches abroad and sponsor reports
What an Atlas person record can bring together, based on published guidance and data protection assessments.

What went wrong in the move

Moving millions of records from CID to Atlas was not clean, and this matters because errors in your record can shape a decision.

  • Reports in 2024 said “tens of thousands” of people were listed with incorrect information in Atlas, and the Information Commissioner’s Office opened an investigation after months of IT incidents.
  • The independent inspector found “missing interview records, record duplications, and discrepancies” between Atlas and other systems.
  • A former chief inspector said Atlas “has served to slow things down”.
  • A Public Accounts Committee report in June 2026 found that staff were still keeping their own spreadsheets alongside Atlas.
  • In asylum work, the inspector found that after the switch it “had not been possible for the Home Office to provide data or feedback on the outcome of asylum appeals” to decision makers.

For an applicant from Pakistan, the practical risk is a duplicated or merged record: two person records for the same applicant that later get joined, or a sibling’s details attached to yours because of a shared address and surname. If a decision letter mentions something you never submitted, a record error is one possible explanation and you can ask to see the record.

Atlas, the Person Centric Data Platform and your eVisa

Your eVisa is not stored in Atlas. The Home Office’s data protection assessment for the “view and prove” service explains that status data is pulled from a Person Centric Data Platform, which aggregates data from CID, Atlas, the biometrics system and several other caseworking systems. Your face image comes from the biometrics store. Each time you sign in, the service fetches that data fresh.

So when an eVisa shows the wrong name, dates or conditions, the fix has to happen in the caseworking system first. The assessment says rights requests are “actioned on core systems first, then reflected in View and Prove when status is next requested”. That is why eVisa corrections can take weeks, and why you should check your eVisa as soon as a visa is granted, not the night before you fly.

Share codes generated from your eVisa are valid for 90 days. Employers, landlords and several government bodies (DVLA, DWP, HMRC, the NHS and the Student Loans Company among them) can check your status through linked services.

Not sure how this applies to your case?

Send us your question on WhatsApp. A Westside adviser in DHA Lahore will reply, Monday to Saturday, 10:00 to 18:00.

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The reference numbers and what each one means

NumberWhere you see itWhat it is for
GWF numberYour online application confirmationIdentifies the application in the online form system; the one VFS uses
Unique Application Number (UAN)Decision letters and UKVI emailsIdentifies the application inside the Home Office
IHS referenceHealth surcharge payment receiptLinks your surcharge payment to the application
Home Office referenceOlder letters, appeals, subject access responsesIdentifies you as a person across applications
UKVI accounteVisa sign inLinks your identity document to your status record

When you chase an application, quote the GWF number to VFS and the UAN to UKVI. Quoting the wrong one is a common reason enquiries go nowhere.

How to see your own record

You have a legal right to a copy of the personal data the Home Office holds about you. This is called a subject access request. It is free, made online, and the Home Office normally has one month to respond, which can be extended for complex requests.

What you get back is usually a printout of your person record and case notes. Older cases show “GCID” notes from the CID era; newer ones show Atlas case notes. Some lines will be blanked out where an exemption applies. Reading these notes is the single best way to understand why a past application was not granted and what the next officer will see.

Be careful: a subject access request is not a way to influence a pending application and it does not speed anything up. Use it between applications, not during one.

What this means before you apply

  1. Assume everything is linked. Write the application as if the officer can see every previous UK application and decision, because they can.
  2. Declare past negative decisions, anywhere. Fingerprint sharing means undeclared decisions from the United States, Canada, Australia or New Zealand can appear on your record.
  3. Keep names, dates and addresses identical across documents. Variations create duplicate records and delay.
  4. Check your eVisa the day a visa is granted. Errors are fixed in the caseworking system first and take time.
  5. After a negative decision, read the record before reapplying. A subject access request shows what the officer saw and wrote.

This is Part 1 of our series on how UKVI handles an application from the inside. Part 2 covers the first 48 hours after you submit and Part 3 covers the checks that run before a human reads your file.

Questions applicants ask

Can a UKVI officer see my old CID records on Atlas?

Yes. Records were migrated into Atlas, and your person record links past applications to you through biometrics and biographical data. Subject access responses for older cases still show CID era notes.

If I apply with a new passport, does my old record follow me?

Yes. Fingerprint matching links the new application to your existing person record regardless of the passport used.

Why does my eVisa show wrong details?

Your eVisa pulls data from a central platform fed by Atlas and other systems. If the underlying record is wrong, the eVisa is wrong. Report the error through the GOV.UK eVisa error form; the correction is made in the caseworking system first.

How do I see what UKVI holds about me?

Make a subject access request on GOV.UK. It is free and the Home Office normally responds within one month. You will receive your person record and case notes, with some lines withheld under exemptions.

Does the Home Office share my fingerprints with other countries?

Under the five country arrangement, fingerprints can be checked against records held by the United States, Canada, Australia and New Zealand. A match can return identity details, past decisions and travel document information.

Can errors from the CID to Atlas migration affect my decision?

They can. Inspectors found duplicated and missing records and discrepancies between systems after the move. If a decision letter refers to something you never submitted, ask to see your record.

Mujtaba Maharvi, CEO of Westside Visa Consultants
About the author

Mujtaba Maharvi

Mujtaba is the CEO of Westside Visa Consultants. He began his career in 2001 as Executive Secretary to the Consul General of the Republic of Korea in Karachi, co founded Westside in London in 2003, and has since guided more than 1,000 students and families through UK, European, North American and Australian visa decisions from the firm’s offices in DHA Lahore and the UK. He holds postgraduate degrees from the University of Karachi, the University of Padua, Loughborough University and the University of West London, and writes this series from more than twenty years of reading decision letters.

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This guide is general information, not legal or migration advice. Westside Visa Consultants is an independent private advisory, not affiliated with any government, embassy or visa centre. Always check the official sources before you apply.

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