Income Tax: general enquiries


Ask HMRC online

Ask HMRC’s digital assistant to find information about:

  • PAYE
  • tax codes
  • claiming a tax refund
  • proof of employment history

If the digital assistant cannot help you, you can ask to transfer to an HMRC adviser if they’re available.

Tell HMRC about changes that could affect your tax code

This service is part of the personal tax account, and you can use it to check:

  • your tax code
  • the information HMRC holds about your employment
  • an estimate of how much tax you’ll pay

Find out how to tell HMRC about a change to your personal details.

Check when you can expect a reply from HMRC

Find out when you can expect to receive a reply from HMRC to a query or request you’ve made.

If HMRC needs to contact you about anything confidential they’ll reply by phone or post.

If you think you have overpaid tax

Before you contact us you can:


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

Start your tweet with @HMRCcustomers

Twitter opening times:

Monday to Friday: 8am to 8pm
Saturday: 8am to 4pm

Closed on Sundays and bank holidays.


Call HMRC for help with:

  • questions about PAYE and Income Tax, including issues with:
  • identification and verification problems if you’re trying to register for a personal tax account
  • Marriage Allowance including:
    • making a backdated claim if your spouse or civil partner has died
    • applying for Marriage Allowance if you do not have a National Insurance number, because you do not intend to work or study in the UK
    • cancelling your claim
  • questions about tax on savings income (including refunds)
  • general enquiries about Individual Savings Accounts (ISAs)

Have your National Insurance number with you when you phone.

Before you call

This helpline uses speech recognition software, so you will be asked why you are calling HMRC. If you cannot use speech recognition software, find out how to get help from HMRC if you need extra support.

This helpline may also ask you some security questions. Make sure your personal details and address are up to date in your personal tax account or you could fail telephone security. If you do not have a personal tax account, you can create one before you check your details.

HMRC may ask if you want to add voice identification to your account. You can find out more in the Voice Identification Privacy Notice.

You can use Relay UK if you cannot hear or speak on the phone, dial 18001 then 0300 200 3300. Find out more on the Relay UK website.

0300 200 3300

Outside UK:
+44 135 535 9022

Opening times:

Monday to Friday: 8am to 6pm

Closed on weekends and bank holidays.

You can also find out information in:

Find out about call charges


Write to HMRC at this address for PAYE and Income Tax queries, except if you want to make a complaint about HMRC.

You do not need to include a street name, city name or PO box when writing to this address.

Couriers should use a different address.

Pay As You Earn and Self Assessment
HM Revenue and Customs
United Kingdom