How can I update my personal details on the HMRC app?

This video shows you how to use the HMRC app to update your personal details.
To find out more about the HMRC app on GOV.UK. go to: www.gov.uk/gov...
You can download the HMRC app:
from the App store for Apple products apps.apple.com...
from Google Play for Android play.google.co...
HMRC is the UK’s tax, payments and customs authority. We collect the money that pays for the UK’s public services and help families and individuals with targeted financial support.
You can use social media for help with general queries relating to any of HMRC’s products and services:
Twitter: / hmrccustomers
Facebook: / hmrc