The British bank have teamed up with Google to test the us of their Google Home voice assistant to tell them their balance and detail customers' recent spending.
Users will have to say a pin to access the data.
A pilot will see 500 people test out the fear for three month.
Natwest said: "We are exploring voice banking for the first time and think it could mark the beginning of a major change to how customers manage their finances in the same way mobile banking made a huge impact," said Kristen Bennie, head of NatWest's Open Experience digital innovation centre.
"This technology will make it easier for people to bank with us and could bring particular benefits to those who have a disability as voice banking eliminates the need for customers to use a screen or keyboard.
"This is one of a number of services that the bank is aiming to develop this year that uses cutting edge, innovative technology to better serve our customers."