TL;DR
UKVI doesn't enforce filename rules but caseworkers process applications faster when files are named consistently: numbered prefix, descriptive type, your surname (e.g. 01_Passport_BioPage_Garcia.pdf). Our Bundler renames files automatically using Home Office conventions when you build a merged bundle.
How to name files for UKVI
- Use the format
NN_DocumentType_YourLastName.pdf— number first for sort order, descriptive name in the middle, surname last - Number sequentially (
01,02,03…) so files appear in canonical order even when uploaded separately - Use underscores not spaces — some upload systems mangle filenames with spaces
- PascalCase the document type —
Bank_Statementnotbank statement - For periodic documents include the period —
04_Bank_Statement_2025-10_Garcia.pdffor October 2025 - For multi-page categories, use sub-numbering —
03a_Bank_Statement_Sept.pdf,03b_Bank_Statement_Aug.pdf - Keep filenames under 60 characters — some systems truncate longer names
Recommended document types
| Category | Document | Suggested name fragment |
|---|---|---|
| Passport & ID | Bio page | Passport_BioPage |
| Passport & ID | Previous visa | Previous_UK_Visa |
| Passport & ID | BRP | BRP_Current |
| Financial | Bank statement | Bank_Statement_YYYY-MM |
| Financial | Payslip | Payslip_YYYY-MM |
| Financial | P60 | P60_YYYY-YYYY |
| Financial | Maintenance | Maintenance_Funds |
| Employment | Employer letter | Employer_Letter |
| Employment | Contract | Employment_Contract |
| Employment | CoS reference | CoS_Reference |
| Qualifications | Degree | Degree_Certificate |
| Qualifications | Transcript | Transcript_Bachelor |
| Qualifications | English certificate | English_IELTS_UKVI |
| Qualifications | UK ENIC statement | ENIC_Statement |
| Relationship | Marriage certificate | Marriage_Certificate |
| Relationship | Photos | Relationship_Photos |
| Travel & medical | TB test | TB_Test_Certificate |
| Travel & medical | Police clearance | Police_Clearance_COUNTRY |
Why naming matters
UKVI caseworkers see hundreds of files weekly. Consistent naming:
- Saves caseworker time — they find the document UKVI's checklist asks for without opening every file
- Reduces resubmission requests — if a file is named
IMG_4837.JPG, the caseworker may not realise it's your sponsor letter and request "the missing employer letter" - Survives re-uploads — if you have to re-upload a single file, a clear name makes it obvious which one
- Helps your future self — if there's an issue 6 months later, you can find evidence quickly in your local backup
What to avoid
- Phone defaults like
IMG_4837.JPG,Document_2026.pdf,Scan_001.pdf - Personal references like
Mom_Bank_Statement.pdf— caseworkers don't know who "Mom" is - Dates in ambiguous formats like
04-05-2026(could be 4 May or 5 April) - Special characters like
&,#,%,+— many upload systems break on these - Camera-app PDFs named like
IMG_20260501_143245.pdf - WhatsApp downloads named like
IMG-20260501-WA0042.jpg
When the Bundler renames automatically
If you use our free Bundler to merge documents into a single PDF, the filenames inside the bundle's index page are normalised automatically using Home Office conventions:
IMG_4837.JPG→01_Passport_BioPage.pdf(when categorised as passport, position 1)Statement.pdf→04_Bank_Statement.pdf(when categorised as financial, position 4)
The original filenames are preserved in the file list (so you don't lose track), but the bundled PDF's index page shows the normalised names — that's what caseworkers see.
What about the bundled file itself
For the merged bundle, the Bundler suggests:
{route}_{your-name}_{date}.pdf — e.g. skilled-worker_maria-garcia_2026-05-01.pdf
This is what UKVCAS / VFS Global sees as the upload filename. It tells caseworkers immediately what application this relates to.
Tools mentioned
- Visa Document Bundler — auto-renames files in the bundle index
- Compress PDF for UK visa — preserves filename when compressing
- Personalised checklist — names items consistently in the downloadable PDF
Sources
Common questions
- 01
Does UKVI care about my filenames?
Yes — caseworkers process tens of files per application; clear filenames help them find what they need and avoid asking for resubmissions. Filename quality is one of the small details that distinguish a smooth application from a delayed one.
- 02
What's the recommended filename format?
Numbered prefix, document type, your last name. E.g. '01_Passport_BioPage_Garcia.pdf'. The number controls order; the descriptive name tells the caseworker what's inside without opening; the surname disambiguates if multiple family members are applying.
- 03
Should I include dates in filenames?
For periodic documents (bank statements, payslips), yes — '04_Bank_Statement_2025-10_Garcia.pdf'. For one-off documents (passport, marriage certificate, employer letter), the date isn't needed in the name.
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