main budget; original budget
Refers to the initial, officially approved budget for a fiscal year, as opposed to supplementary budgets (補正予算). Common in political and economic news.
The government submitted the main budget proposal for the next fiscal year to the Diet.
After the main budget is passed, a supplementary budget may be compiled.
The government drew up the main budget for the next fiscal year.
The main budget was finally passed in the Diet.
The Diet is deliberating on the main budget.