The goal of this thesis is to determine characteristics and differences between accounting of enterprises, sole proprietorships and associations. Scientific methods used in this thesis are analysis and synthesis, description and comparison method. By comparison of mentioned accounting bases, the entrepreneurs are obligated to use double-entry bookkeeping, sole proprietorships use single-entry bookkeeping and associations can use double-entry or single-entry bookkeeping according to its size and decision of single-entry bookkeeping. The difference between this two accounting basic methods is that double-entry bookkeeping represents accrual category and single-entry bookkeeping method represent cash basis category. When comparing books of accounts the entrepreneurs and associations (which use double-entry bookkeeping) are obligated to have journal and general ledger, but there is difference in maintaining subledger records, where the entrepreneurs are more focused on subsidiary ledger of production, payroll, costumers, suppliers while the associations are more focused on subledger records of long-term and short-term non-financial assets, records of financial assets and liabilities. Sole proprietorships entities are obliged to maintain book of revenues and expenses, book of long-term assets, book of receiepts and book of claims and liabilities, while the books obliged for associations who use single-entry bookkeeping are cash-book, book of revenues and expenses, book of incoming accounts (invoices), book of outgoing accounts (invoices) and book of long-term non-financial assets. Regarding financial statements, entrepreneurs are obliged to maintain six (balance sheet, income statement, statement of other comprehensive income, cash flow statement, statement of changes in equity and notes) financial statements, associations who are obliged to use double-entry bookkeeping are obliged to maintain four (balance sheet, statements of income and expenses, short statement of income and expenses and notes) financial statements, while associations who use single-entry bookkeeping are obliged to maintain one (cash inflow and outflow statement) financial statement. Regarding the process of calculation of financial result, entrepreneurs have more complex calculations in comparison with 72 sole proprietorships who are obliged to implement corporate profit tax, while sole proprietorships who are obliged to implement income tax and associations, calculate financial result by simple deduction of income and expenses.