Where to find it
Where to find your tax documents and references
Lenders, accountants and HMRC itself regularly ask for a reference number or document you were sent once and may not have kept. Each guide lists every place it can be found, usually the HMRC app, your personal tax account or a letter, what it looks like, and how to get a replacement if it's gone. Where a reference is a common target for scam messages, the guide says how to spot and report them.
- Firm no. 4549994
- ACCA
- From, per month
- £35
- Named accountant
- 1:1
- Where to find itFind your UTRYour Unique Taxpayer Reference (UTR) is a 10-digit number HMRC gives you when you register for Self Assessment or set up a limited company.
- Where to find itFind your P60A P60 summarises the pay you received and the tax deducted in a tax year, from 6 April to 5 April.
- Where to find itGet your SA302An SA302 is HMRC's calculation of your tax for a year, used as proof of income, for example by self-employed mortgage applicants.
- Where to find itFind your NI numberYour National Insurance number is made up of 2 letters, 6 numbers and a final letter.
- Where to find itFind your Gateway user IDA Government Gateway user ID is up to 12 characters long and, with a password, signs you in to HMRC online services such as your personal tax account and Self Assessment.
- Where to find itFind your P45A P45 is the form your employer gives you when you stop working for them.
- Where to find itHMRC app and tax accountThe HMRC app and your personal tax account on GOV.UK are where you find most personal tax references.
- Where to find itYour P800 tax calculationA P800 is HMRC's tax calculation letter.
- Where to find itYour P2 tax code noticeA P2 Tax Coding Notice is HMRC's letter telling you your tax code and how it was worked out.
- Where to find itCheck your NI recordYour National Insurance record shows what you've paid up to the start of the current tax year, any credits you've received, and whether gaps mean some years don't count as qualifying years for the State Pension.
- Where to find itGet a copy of your tax returnIf you filed your Self Assessment return through HMRC's online service, sign in to your HMRC online account to view returns you've made before.
- Where to find itFind your company UTRA company's Unique Taxpayer Reference (UTR) is a 10-digit number HMRC gives a limited company for Corporation Tax once it's set up.
- Where to find itFind your authentication codeThe company authentication code is a six-character code of letters and numbers that authorises online filings at Companies House, the equivalent of a company officer's signature.
- Where to find itFind your VAT numberA UK VAT registration number is a 9-digit number HMRC sends by post when you register for VAT.
- Where to find itFind your employer PAYE referenceEmployers have two HMRC references.
- Where to find itFind a CIS verification numberA CIS verification number is the reference HMRC gives a contractor when it verifies subcontractors before paying them.
- Where to find itFind your HMRC payment referenceEach tax has its own HMRC payment reference.
Questions
Is it safe to share my UTR?
Where's the quickest place to look?
For most personal references, the HMRC app or your personal tax account. Company references are usually on letters sent to the registered office.
What if I can't find it anywhere?
Each guide ends with how to get a replacement from HMRC, Companies House or your employer.
Get started
Take control of your
numbers today.
Free, no-obligation consultation. We agree the fee upfront — no surprises.
5.0 on Google · 8 reviews- Fixed fee agreed in writing before work starts — no surprise bills.
- Switching is handled for you, including the professional clearance letter.
- A named accountant who knows your business, not a call queue.