Tax Office Number, better known as HMRC 0843 487 1818

Tax Office Number Call 0843 487 1818

Tax Office Contact NumberHer Majesty’s Revenue and Customs (HRMC) is a non-ministerial division of the Government, responsible for the administration and gathering of taxes, including income, corporation, capital gains, inheritance, value added (VAT), stamp duty and tax. In addition, HMRC also handles environmental taxes as well as National Insurance, state support benefits such as Tax Credits, the administration of anti-money laundering legislation and the protection of the UK’s borders (through the UK Border Agency).

  • 1. HMRC FAQ
Some of the most frequently asked questions regarding the HMRC
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  • 1. What are the best opening time for the HMRC?


    You can use Twitter to get general help from HMRC. We can’t discuss specific cases or an individual’s tax affairs, so please don’t give any personal details.

    Start your tweet with @HMRCcustomers

    Opening times:

    8am to 10pm, Monday to Saturday
    9am to 10pm Sunday



    Call HMRC for help with questions about Income Tax, including:

    • PAYE coding notices
    • tax overpayments or underpayments
    • P800 tax calculations

    Have your National Insurance number with you when you phone.

    0300 200 3300

    0300 200 3319

    Outside UK:
    +44 135 535 9022

    Opening times:

    8am to 8pm, Monday to Friday
    8am to 4pm Saturday
    9am to 5pm Sunday

    Closed bank holidays, Easter Sunday, Christmas Day, Boxing Day and New Year’s Day.

    Best time to call:

    Phone lines are less busy before 10am, Monday to Friday and on Sundays.

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Whether you have an enquiry relating to personal or business taxation or a related benefit, you’ll find a wealth of information at Alternatively, due to the private nature of such financial enquiries many people prefer to contact the Tax Office directly – to discuss your situation please phone the contact number provided.

For your convenience we have highlighted a range of commonly raised taxation questions – providing at-a-glance answers for your reference.

The completion of tax-returns and self-assessment online

This can seem daunting but with a little guidance, it needn’t be – we have illustrated a step-by-step guide featuring key issues, from stringent deadline dates to commercial software designed to assist with the personal tax return process.

Essential tax-return deadlines:

  • Registration for Self-Assessment – 5th Oct
  • Paper Tax Returns –  midnight 31st Oct
  • Online Tax Returns – midnight 31st Jan (the following year)
  • Final payment of any tax – midnight 31st Jan

Commercial software tools, designed to assist with self-assessment:

There are three kinds of commercial software packages available, supporting the different types of tax return, including the –

SA100 – aimed at individuals (including those who are self-employed)

SA800 – accommodating partnership tax returns

SA900 – outlining Trust and Estate tax returns

Please note that you will find a comprehensive list of commercial software suppliers at – alternatively please don’t hesitate to phone the Tax Office number provided.

Telephone assistance with the completion of self-assessment

Despite being able to conduct tax returns by post or via HMRC online, it is often necessary to discuss requirements with a taxation expert. To raise any queries you have please call the Tax Office contact number – lines are open from 8am until 8pm on a Monday to Friday and from 8am until 4pm on a Saturday.

Tax Office Contact NumberTax Credits – aspects to consider when completing your renewal

  • Did you know that if you have a child aged 16, 18 or 19 – if they are in full-time approved education or training, for example an NVQ course or relevant traineeship (unpaid), this could have a beneficial effect on the amount of benefit you receive?
  • Childcare costs: If you qualify for assistance with paying for childcare whilst you are working, benefits typically amount up to £122.50 for 1 child and up to £210 per week for 2 or more children – depending on your income and the frequency of the childcare.
  • Claiming tax credits on behalf of someone else requires you to send a signed TC689 form to the Tax Credit Office – this provides authorisation for 12 months (unless directed otherwise). Authorisation usually takes 2 days and it is possible to add more than one trustee (each with an individual TC689 form).
  • Renewing your tax credits requires some crucial information including, you National Insurance number, details of earnings (for you and your partner) for the last tax year and your unique 15-digit reference number (found in your renewal pack).
  • The Tax Credits renewal deadline is the 31st July – however, this will be confirmed in your renewal pack. Please note that missing the deadline can result in your payments being stopped.

Assistance with the completion of Tax Credits via telephone

Due to the personal nature of Tax Credits many claimants prefer to discuss their situation one-to-one – if you wish to contact the Tax Office directly, lines are open on a Monday to Friday from 8am until 8pm and on a Saturday from 8am until 4pm.

An employers’ guide to taxation procedures

As an employer there are numerous taxation aspects to be aware of, for ease of reference we have listed some of the most regularly raised questions.

Tax forms

There are a diverse range of documents that will prove essential to the running of your business, which include:

  • P11D Expenses & Benefits
  • SSP2 Statutory Sick Pay Record Sheet
  • P32 Employer Payment Record
  • SC2 Statutory Sick Pay
  • P46 (Car) – for the private use of a car by an employee or director

For a full insight into which forms are needed, click onto – alternatively please ask for details via the Tax Office phone number.


FPS and/or EPS figures should be submitted at the end of the tax year, sending relevant documents on the day you would usually pay your employees – for the majority of employers this will be the final payday before the end of tax year, which is 5th April.

Please note that your taxation software will inform you if all documentation has been successfully received by HMRC.

Tax Office Contact NumberNational Insurance contributions – employer responsibilities

If you have any staff registered as self-employed it is their responsibility to organise National Insurance payments, otherwise contributions should be calculated through your PAYE system and entered via your FPS.

Starting a new tax year – aspects to remember

April 6th 2013 witnessed the introduction of ‘real-time’ tax returns, which means employers now complete and return payroll information digitally rather than by paper. If you haven’t already made the change, most of the software required is available free of charge – once established any manual documentation must be transferred to digital format, this includes changes to tax codes, income tax details and National Insurance contribution rates.

Once again, further information can be found at or by calling the Tax Office contact number provided between the hours of 8am and 8pm on a Monday to Friday or from 8am and 4pm on a Saturday.