Head to 'Register for Online Banking' 

Enter your personal details. We’ll need details including your name, date of birth, sort code and account number

We’ll show you your customer number on screen (you're making good progress at this point). Make a note of it as you’ll need it when you log in, in the future.  If we don't need anything else from you you'll skip straight to step 7, but you may need to go to step 4, don't worry we'll let you know on screen. 

We'll then send you an activation code. We'll send you your activation code in a text message. Or if we don’t have your phone number, we’ll send it through the post

Go to the NatWest website and click ‘login’ in the top right-hand corner, have your activation code to hand

On the login page, type in your customer number and activation code

Now you need to choose a password and PIN and commit them to memory. The PIN should be four digits long and your password can be between six and twenty characters, and contain both letters and numbers

Done, finished, complete.  Now you can manage your finances anywhere you can get online.