"To tighten the budget" means to reduce or limit the amount of money spent on certain things in order to save more money and be more careful with expenses.
Sentences with «to tighten the budget»
In this era of tightening budgets, spare funds can hardly be called a problem. (blog.edmentum.com)
She figures she can get back on track by tightening her budget a little over the next couple of years. (policygenius.com)