Number of Tables & Relationships

[access12]

I want to build a Financial Database. We are provided a certain amount of budget under different heads each year. Every month we spend some money from some or all heads. Then we provide a detail of expenditure during the month under each head and the balance thereof.
My request is how many tables I need in my database. My opinion is 5 tables each for Years, Months, Heads of Expenditure,Budget Allotted, and Expenditure. Also what kind of relationships I shall make between them.
Hoping for your response.

 

[plog]

From what you've described I only see 2 tables: BudgetAllocation and Expenditures.

If you can provide sample data I get be more specific, but right now you only have 2 tables.