"get into debt" is correct and usable in written English.
You can use it when you want to describe someone borrowing money to cover expenses. Example: To pay for college tuition, Anne had to get into debt.
"I don't want to get into debt".
He also knows how to get into debt.
"We're not encouraging you to get into debt.
People may be exploited or they may get into debt to pay for help to migrate.
Many more are expected to get into debt to fund the cost of the festive season.
The Durbin-Harkin bill would help students understand how loans work before they get into debt.
"I definitely think it's a stupid idea to get into debt when I don't have to".
When they're ill they're entitled to sick pay and aren't forced to get into debt.
So, that means they get into debt, and then they have a potential for going bankrupt as well.
A lot of local farmers get into debt just keeping the cotton fields watered.
The reason many people get into debt is because they do not have any savings to start with.
