Set up your tax app with HMRC

The free HMRC tax app now provides quick access to tax codes, income history, self-assessment details, National Insurance records and even payment options, all from your phone.

HMRC’s free tax app is available to download from the App Store for iOS and from the Google Play Store for Android. The latest version of the app includes some updated functionality.

To set up the tax app for the first time, open the app and enter your Government Gateway user ID and password. If you do not have a user ID, you can create one within the app. After signing in, you can access the app easily using a 6-digit PIN, fingerprint or facial recognition.

The app can be used to see your:

  • tax code and National Insurance number
  • income and benefits
  • employment and income history in the previous 5 years
  • Unique Taxpayer Reference (UTR) for self-assessment
  • self-assessment tax you owe
  • your Child Benefit
  • your State Pension forecast
  • gaps in National Insurance contributions

The app can also be used to complete a number of tasks that usually require the user to be logged on to a computer. This includes to:

  • get an estimate of the tax you need to pay
  • make a self-assessment payment
  • make a Simple Assessment payment
  • set a reminder to make a self-assessment payment
  • access your Help to Save account
  • using HMRC’s tax calculator to work out your take home pay after Income Tax and National Insurance deductions
  • track forms and letters you have sent to HMRC
  • claim a refund if you have paid too much tax
  • ask HMRC’s digital assistant for help and information
  • update your name and / or postal address
  • save your National Insurance number to your digital wallet
  • check if you can make a payment for gaps in your National Insurance contributions
  • choose to be contacted by HMRC electronically, instead of by letter.

Source:HM Revenue & Customs | 09-11-2025
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Aitch
I'm Aitch, the Founder and CEO of CIGMA Accounting Ltd. As a Chartered Management Accountant and as a CIMA member, I've spent more than 16 years helping businesses, entrepreneurs, landlords, and individuals with tax planning, accounting, and HMRC compliance. As a chartered accountant in London, I'm passionate about making complex tax matters easier to understand and helping clients make confident financial decisions. Over the years, I've advised start-ups, SMEs, established companies, and high-net-worth individuals across a wide range of tax and accounting matters. My expertise includes Corporation Tax, Self-Assessment, Capital Gains Tax, Inheritance Tax planning, R&D tax relief, capital allowances, international tax, and resolving complex HMRC compliance issues. Whether clients need a business accountant, tax accountant, or strategic tax advisor, my focus is always on delivering practical advice that creates long-term value. One of my specialist areas is Making Tax Digital (MTD). I've worked extensively with businesses preparing HMRC's digital reporting requirements, helping them move to cloud accounting, improve financial processes, and adopt technology that makes compliance more efficient. I regularly speak at Making Tax Digital roadshows, industry events, and educational sessions in collaboration with Zoho Books, sharing practical insights into digital accounting, tax legislation, and the future of the profession. Many business owners looking for the best accounting firm in London are not simply searching for an accountant they're looking for trusted advice, responsive support, and long-term value. That's the approach I've taken in building CIGMA Accounting. My team and I work closely with businesses across London and the UK, providing accounting services, tax advisory, bookkeeping, payroll, VAT, company accounts, and strategic tax planning tailored to each client's goals. Through this website, I share practical guidance on UK taxation, Making Tax Digital, HMRC updates, Corporation Tax, Self-Assessment, and business finance. My aim is to provide reliable, straightforward information that helps business owners understand changing regulations, reduce compliance risks, and make informed financial decisions with confidence.