How is the depreciation life determined?

Pre-tax annual operating cash flow = pre-tax annual inflow - pre-tax annual outflow = 20 - (10-2) = 12, the cost of the cost is included in the depreciation cost, and depreciation does not lead to cash outflow, can be deducted from the cost of the 12 pre-tax net cash inflow to get 12, the annual operating cash flow = after-tax annual operating cash flow = 12 × (1-33%) Various tax rates and their calculations are as follows:1. VAT rate: 3% for small-scale, 17% for general taxpayers, calculation method: sales revenue (excluding tax) X tax rate 2, business tax rate: 5% for unqualified, 3% for qualified, calculation method: sales revenue (excluding tax) X tax rate 3, surtaxes: (1) urban construction tax: 7% Calculation method: VAT (business tax) tax amount X 7%

(2) education surcharge: 3% Calculation method: VAT (business tax) tax amount X3%

(3) Local education surcharge: 2% Calculation method: VAT (business tax) tax amount X2%

4. Stamp duty: Purchase and sales contracts are discounted at three ten thousandths of the amount of purchases and sales; account books are paid at 5 yuan per book (when activated annually); annual tax is paid at the rate of "paid-in capital" and "capital stock"; and the annual tax is paid at the rate of "paid-in capital" and "capital stock". "and" capital surplus "and the sum of five ten thousandths of the payment (the first year by the full payment, and then by the annual increase in the payment)

5, enterprise income tax:

Enterprise income tax depends on whether the enterprise is authorized or checking the collection.

(1) Checking and collecting: Tax rate 20% 25% Calculation method: Taxable amount = Profit X Applicable tax rate

(2) Approved collecting: Tax rate 20% 25% Approved tax rate is the tax rate approved by the specialized administrator according to the specific situation of the enterprise: 7%, 10% Calculation method: Taxable amount = Taxable sales X Approved rate X Applicable tax rate The tax rate is the levy or percentage of the object of the tax. Tax rate is the proportion or amount of tax on the object of taxation. Tax rate is the scale for calculating the tax amount and an important symbol for measuring the tax burden. Annual depreciation rate is the abbreviation of "annual depreciation rate of fixed assets". It is the ratio of the annual depreciation of fixed assets to their original value, which reflects the extent of the value of fixed assets transferred to the cost of products or related expenses during the year. The annual depreciation rate divided by 12 is the monthly depreciation rate."