The Conservatives say they would stop some households being able to get unlimited benefit payments, by reforming the household benefit cap.
The cap is a limit on the total amount of benefit payments most working age people can receive.
However, there are exemptions for people on some benefits, including Personal Independence Payment (Pip), and for households on universal credit which earn £881 or more a month.
If they win power, the Tories have said they would only exempt households from the cap if all adults who can work do so, while receiving benefits such as Pip would no longer be an automatic exemption.
The party said its proposals would deliver at least £1bn of savings annually.
Conservative leader Kemi Badenoch said the plans would “stop those who abuse the system getting almost unlimited welfare payments”.
A total of 111,000 households in Great Britain are affected by the cap, according to the latest government figures.
However, the Tories said more than 2.3 million households were claiming benefits above the cap due to exemptions, including work.
