Government accounting is the authorizing, tracking and recording of revenue and expenditures. It can govern how taxes are raised and how the executive of a government spends the proceeds.

The GAO : Government Accounting Office for one ,

Fund accounting is the most important principle of government accounting. Separate funds are used to make it easier to account for all governmental costs.

advantage modified accrual accounting in government

The biggest difference is that government account is non-profit and based on funds....also called fund accounting. They do not have profits. Financial accounting tracks income and have or hope to have a profits.