Purchasing Schema Modeling

I'm new to data warehousing. I have scenario as follows:
There is an organisation with departments. There is a list of items that departments can procure. Each department has budget for a particular item for a financial year. I have created a fact table for purchasing transactions where I have (department,item purchased, transaction date, amount and keys to my dimensions). What confuses me is the budget amount, do I have to include it in the fact table? I can see that it will be duplicated for same department purchasing same item.

I need suggestion on this schema. Thanks.

Budget should be in a separate fact.

Thanks a lot for the response
Just a follow up, since the budget is annual, it cannot be linked to Date dimension. Am I correct in saying that?
I think of adding financial year int the budget fact table rather than getting it from Date dimension which has DateKey as primary key.

Yes, you could do that provided the date dimension carries the same value. This will allow you to roll up actuals on the conformed fiscal year value.