Payment of social security and provident fund in Tianjin. My basic salary is 4550 yuan, and the company's social security contribution base is 3000 yuan.

Endowment insurance is 19% for enterprises and 8% for individuals, that is, you pay it to 240 yuan once a month. The maximum contribution ratio of enterprise provident fund is 1 1%, and the maximum contribution ratio of individual is 1 1%. If calculated by 1 1%, 220 yuan.

Personal income tax should be, personal monthly salary minus social security fees and housing provident fund. That is 4550-240-220=4090 yuan.

20 15 personal income tax payable in Tianjin = taxable income × applicable tax rate-quick deduction. The tax exemption amount is 3500 yuan. That is, after deducting five insurances and one gold, the balance of more than 3500 yuan will be taxed. Your "five insurances and one gold" only provide provident fund and endowment insurance, and other insurances are not mentioned, so after deducting 4090 yuan, you belong to the second gear, that is, the part that exceeds 1455 and is less than 4 155 yuan. The tax rate of this part is 10%, and the quick deduction is 105.

Personal income tax payable = taxable income × applicable tax rate-quick deduction. That is 4090x 10%- 105=304 yuan.

You should pay 304 yuan in tax every month.