It depends on how it'll be used -- before or after whatever it's modifying.
He kept the business's books up to date.
or
The up-to-date books were submitted to the IRS.
Which use do you mean?
the first is OK thanks a lot !
You're very welcome!
Sure! Here's a sentence using "up-to-date": "To ensure accuracy, it's important to keep your records up-to-date by regularly updating them with the most current information."
