Your HMRC UTR Number Explained

What is a Unique Tax Reference Number?

HMRC issues a unique taxpayer reference comprising ten digits (e.g., 0123456789) to all taxpayers, whether they are limited companies, self-employed individuals, or sole traders.

Personal UTR numbers are issued immediately after a self-employed individual files for self-assessment, while UTR numbers are given directly after incorporation. 

Why do I need a UTR Number?

UTR numbers are unique to the holder and, therefore used to identify a person or business for the purpose of taxation. Limited companies use UTR as a reference number when they are -

• Filing returns to HMRC;
• Communicating changes in their accounting period;
• Informing HMRC about changes in their registered details or company structure or

• Transitioning from active to dormant company.

Individuals on self-assessment use a UTR for reference when communicating to HMRC in the following instances —

• File a self-assessment tax return online or via post;
• Work with accountants or other financial advisors;
• Determine their tax bill and pre-pay taxes;
• Claim refunds;
• Track compliance with tax obligations; and
• Ensure accurate record-keeping for tax-related matters.

The reference number helps HM Revenue and Customs track earnings, calculate their liability, and monitor the fulfilment of tax obligations. 

How to Register for a UTR Number From HMRC as a Self-Employed Sole Trader

You will be issued a UTR number during self-assessment registration or when forming an LTD company. To enroll for self assessment with HMRC online, you’ll need a Government Gateway ID and password. If you do not have a business account, you can create one if you are -

• Self-employed as a sole trader
• A business partner, or 
• You need to pay for any other reason; for example, you earn income from a rental property. 

For any other reason, you’ll need to provide your full name, postal address, telephone number, and UK national insurance number and indicate why you are registering for self-assessment. 

To avoid fines, remember the deadline for when you must file returns. 

However, if you’ve ever registered but have not yet received your UTR number, contact HMRC directly through the self assessment helpline on 0300 200 3310. They will post it to you, and this takes around ten days. 

Take time to memorise your number, just like your National Insurance number, it’s yours for life.

How to find your UTR number online?

If you’ve forgotten your UTR number, there are several ways to retrieve it.

Most of your documents from HMRC will show your UTR number; refer to any tax returns letters you receive or forms such as a P60 or P45. Your corporation UTR number will also be printed on your payslip.

See if you can find your UTR number in any of the following resources —

• Get your registered name and number for a ltd company and request your corporation tax UTR online.
• Search through your online Self-Assessment account on the HMRC website.
• Check your “Welcome to Self Assessment letter” (Letter (SA250) sent by HM Revenue & Customs.
• In your “Corporation Tax Information for New Companies” letter (CT41G) sent by HMRC to the official company address 
• Any official correspondence, letters, or notices sent to you by HMRC, for instance, notices for tax payments or statements of accounts. 
• Previous self assessment, company tax returns and other documents. 

However, if you still can’t access previous tax documents (or you want to check your company UTR number), get in touch with HM Revenue & Customs through the self assessment helpline, and they’ll post it to you in 10 working days, or to the registered company address in case of a company utr number.

How do I get a UTR number if I am a Non-Resident?

The law requires non-residents to pay taxes on their UK earnings but not their foreign income. If you are a non-resident, you can apply for UTR through the Government Gateway with the necessary credentials. To get them, you’ll need to have lived in the UK at some point and at least have a National Insurance number (NINO). 

If you do not have NINO, it is possible to register for self-assessment using form SA1, used by those who need to register for UTR number for reasons other than self-employment. As you fill out the PDF, indicate the reason for not providing your NINO. 

Next, you will be asked why you must complete a tax return. Some of your options include if you are - 

• Receiving annual income from a trust or settlement;
• Earning an annual income of over £100,000;
• Getting untaxed income that cannot be collected through your PAYE tax code;
• Earning Income for Child Benefit purposes of over £50,000, and you or your partner is entitled to receive Child Benefit payments on or after 7 January 2013; and 
• Required to pay Capital Gains Tax to pay. 

If you have other reasons for completing your returns, you will be required to give the relevant details. 

Once you obtain a UTR number, you can create a Government Gateway account, sign up for HMRC online services, and file self assessment tax returns. 

For a non-resident company or a collective investment vehicle (CIV) that operates in the country or owns UK-based assets such as shares or land, you are liable to pay your company tax using form CT600 corporation tax return. To file your returns, you will need to provide the following details — 

• Company name (prior names if applicable), registered overseas address, and all contact details.
• Date of incorporation
• Name and addresses of directors
• The date you became liable for company tax 

How do I register for a Company UTR?

To record your company as “active” with HMRC for tax (this must be done within three months of starting any form of business activity or receiving business-related income), you’ll have to provide the following details:

• Company name and company registration number (CRN);
• Trading start date (this will determine the start date of your initial corporate tax accounting period);
• Main address where your business activities are active (this doesn’t have to be your registered office address);
• Outline your company’s principal activities (your SIC code will be needed here).
• The date your company accounts will be noted is also known as the “Accounting Reference Date (ARD).” It is the anniversary of the last day of the month of your business formation;
• Any other information on whether you’ve taken over an existing company/or are part of a group; and 
• Comprehensive details of all company directors (names, addresses, National Insurance number).

If applicable, any information regarding the appointment of an agent (accountant/tax advisor) who handles your company’s tax-related issues.

How long does it take to get a UTR?

How long it takes to get a UTR depends on your circumstances. 

• Individuals register for self assessment online and get their UTR number within ten working days. 
• Non-resident individuals with all the necessary documentation can get their UTR within 21 working days after enrolling for self assessment on the HMRC website. Non-UK resident landlords can register for the Non-resident Landlord (NRL) scheme by calling or writing to HM Revenue and Customs using the following details: 

• For a limited company registered with Companies House, HMRC will automatically get a notification of their formation and send their UTR number within 14 days of incorporation.
• Non-resident corporations must register for corporate tax within three months of becoming liable to pay UK corporate tax. If the corporation has a Government Gateway User ID, HMRC will send the code online. If not, the company will need to create an account and allow up to 8 weeks to process the registration and get access codes to your overseas address.

I lost my UTR number; what do I do?

For lost UTR, don’t worry. Simply look through your correspondence with HM Revenue & Customers. If you cannot trace it, you can call HMRC on 0300 200 3310 to ask about your number and +44 161 931 9070 for those outside the UK. HMRC cannot give your UTR number over the phone, but they’ll send it to you by post in 10 working days.

What is the difference between a UTR Number and a Tax Code?

A UTR number and tax code are tax-related numbers in the UK but for different purposes. A unique tax reference is a 10-digit number identifying an entity for taxation matters issued by Her Majesty Revenue and Customs (HMRC) to individuals or companies.

On the other hand, a tax code is used to identify employers, pension providers, and taxpayers within the context of withholding tax that combines numbers and letters with a distinct meaning. The numbers in a tax code represent the tax-free income an employee can earn in a year, while the letter reflects the employee's situation and how it affects the employee. Therefore, tax codes are not static (they change every year) and are not unique to individuals, and there are situations where two or more people with similar tax dynamics can have the same code.

Currently, the most common tax code is 1257L, which means you can earn up to £12,570 before HMRC requires you to pay your income tax. The letter L means the employee is entitled to the standard tax-free personal allowance. Other letters, such as M, mean the employee has received a transfer of 10% of your partner’s Personal Allowance.

What is a tax return?

Taxpayers must file annual returns with HMRC by post or online, declaring their income and any other relevant financial details helpful in calculating tax liability and scheduling payments or requesting refunds in case of an overpayment. The form is called self assessment because each individual is responsible for reporting their income.

What are the Self Assessment deadlines?

To not miss a deadline, you first need to know that tax dates do not go according to calendar years and are filed in arrears (for the previous year’s income). For instance, when submitting forms in 2023, you are reporting based on 2022 income.

The present tax year starts from April 6, 2023, to April 5, 2024, shortened as 2023/2024, and HMRC requires that self assessment returns be filed by October 5, 2024, if it was your first time filing. Midnight October 31, 2024, and January 31, 2025, are the deadlines for filing a paper tax return and online filing, respectively. HMRC also requires that you pay taxes you owe by January 31, 2025.

Who needs to file a self assessment Tax Return?

In the UK, most people pay tax at source in the form of PAYE (Pay as You Earn) and are not required to file for self assessment. However, according to HMRC, you must file a self assessment tax return (known as an SA100) if, during the tax year, you were -

• Self-employed as a ‘sole trader’ and earned more than £1,000 (before taking off anything you can claim tax relief on);
• A partner in a business partnership, a minister of religion, or a trustee;
• A resident or non-resident who earned over £2,500 in terms of an untaxed interest, rental income, commission, etc;
• Earned over £10,000 before tax in savings and investments or have You have an annual income of £100,000 or more before tax;
• You have capital gains income received by selling or giving away shares or any other relevant asset;
• Had a total taxable income of above £100,000; and
• Had to pay the High Income Child Benefit Charge.

If you need clarification on your situation, please write to us at info@capital-office.co.uk, and we will give you all the information necessary to make a sound decision.

How do I file a Self-Assessment Tax Return Online?

You can file online using form SA100 if you are self-employed and must submit returns for reasons such as receiving rental income.

However, to file returns for a —

• Partnership use the Partnership Tax Return (SA800);
• Trust or an estate files through the Tax and Estate Tax Return (SA900);
• Non-resident using the Residence, remittance basis, etc. (Self Assessment SA109);
• Report  chargeable events, such as the maturity of a life insurance policy, by filing the electronic flat text file specification (previously called magnetic media specifications) — for UK insurers only or the HMRC chargeable events spreadsheet;
• Minister of religion by supplementary pages SA102M; and 
• SA103L for Lloyd's underwriters. 

How do I pay my tax bill?

You can pay your self assessment tax bill by 31 January for taxes owed from the previous year through -

• Online or telephone banking (Faster Payments);
• Debit or corporate credit card online;
• Your bank or building society; 
• Your online bank account;
• CHAPS or Bacs

Note that HMRC’s banking address is:

What are the Self-Assessment Tax Bill Deadlines?

Submitting returns is complex; you must get the timing right to avoid penalties. Note taxation forms are not submitted based on calendar years but tax years and are filed in arrears (for the previous year’s income). For instance, if you are filing returns in 2023, you are filing for 2022 income.

How do you apply for a Company UTR number?

When you set up your LTD company, Companies House automatically sends a notification to HMRC to issue you with a Unique Taxpayer Reference (UTR) number.

What is the difference between a Tax Rebate and a Tax Refund?

Both terms refer to an after-tax refund a taxpayer receives after overpaying their tax invoice. The refund (rebate) refers to the sum you receive from the government when your taxes exceed your actual tax liability.

How do I file my first tax return online?

If this is your first time filing a tax return, begin by enlisting for self assessment. Complete the registration process online on the GOV.UK website. Once registered, you will be assigned a Unique Taxpayer Reference (UTR) number.

Next, gather documents such as P60, P45, and any other relevant tax paperwork. With your documents in hand, determine if you can file online or if you ought to use commercial software and follow the appropriate instructions. The deadline for submitting your tax return is midnight on the 31st of January, following the end of the tax year, and you should always expect to receive a confirmation from HMRC that they have received your return.

Any taxes you owe must be paid by midnight on the 31st of January following the end of the tax year. Various payment methods are available, including online, phone, or postal.

Remember, you can contact HMRC for support if you encounter any questions or require assistance with the tax filing process.