Budgetary (adjective)

1. Relating to a budget or the process of budgeting.
2. Restricted by or operating within a budget.

Origin:

From the noun budget + -ary.

Examples:

1. The company is facing a budgetary crisis.
2. He had to make a few budgetary adjustments.
3. The budgetary constraints made it difficult to plan the project.
4. The budgetary proposal was approved by the board.
5. The budgetary deficit is causing problems for the government.