Payday loans costs will be capped under plans being announced by Chancellor George Osborne.
New financial regulator the Financial Conduct Authority will set the level of the cap, which will cover fees charged on the loans as well as interest.
Treasury officials said the Government had always kept the case for a cap under review and there is now "growing evidence" internationally to support the move.
More top news
Taiwan has taken a new approach to covering the Labour leadership contest.
A 14-year-old boy has said he has been added to a police database after sending a naked image of himself to a female classmate by Snapchat.
Britons are using social media to spread their message that those fleeing persecution are welcome in the UK.