In enterprise income tax, taxable income can be understood as taxable profit, that is, the total income stipulated in enterprise income tax, after deducting cost loss and previous year's profit and loss adjustment, the profit recognized by tax law. Because there are differences in income between enterprise income tax and accounting standards for business enterprises, the cost loss can be deducted. The "taxable profit" recognized by the tax law is not completely equal to the "total profit" of accounting standards for business enterprises, and there are the following relations between them:
Taxable income = tax profit = accounting profit+tax adjustment increase-tax adjustment decrease
Common tax differences, including tax laws requiring that it be regarded as sales, recognized as sales revenue and regarded as sales cost; Enterprise income tax clearly stipulates the pre-tax deduction limit, such as employee welfare expenses, employee education expenses, trade union expenses, business entertainment expenses, advertising expenses and business promotion expenses. The part that exceeds the deduction limit needs to be taxed and increased in this period; Provisions on the need to obtain reasonable deduction vouchers before the final settlement of enterprise income tax, and provisions on the need to increase taxes on costs and expenses that have not obtained legal deduction vouchers before the final settlement; Enterprise income tax regulations to make up for losses in previous years, etc.
Taxable amount of enterprise income tax = taxable income × applicable tax rate-tax relief-tax credit
Taxable income is the tax basis of individual income tax. Personal income is divided into nine categories: wage income, labor remuneration income, royalty income, production and operation income, property rental income, property transfer income, interest dividend income and accidental income.
The first four items belong to the category of comprehensive income. The taxable income of comprehensive income is the balance after deducting the basic expenses of 60,000 yuan from the total comprehensive income, special deductions for social security, special deductions for children's education and other deductions confirmed according to law. Comprehensive income is subject to a progressive tax rate of 3%-45%.
Comprehensive income tax payable = comprehensive income tax payable × applicable tax rate-quick deduction
Owners of individual industrial and commercial households, investors of sole proprietorship enterprises and natural person partners of partnership enterprises pay individual income tax according to the income from production and operation. The taxable income of production and operation is the total income of production and operation minus the loss of the previous year, and the five-level excess cumulative tax rate of 5%-35% is applicable to the income of production and operation.