First of all, we need to determine the comprehensive income. The calculation of individual income tax is based on comprehensive income. According to your annual income of 240,000 yuan, we can preliminarily calculate your comprehensive income as follows: 240,000 yuan-6,000 yuan (threshold) = 234,000 yuan.

Next, we need to calculate the amount of personal income tax you should pay. According to the regulations of State Taxation Administration of The People's Republic of China, People's Republic of China (PRC), your annual taxable income is: 234,000-90,000 yuan (excluding expenses and special additional deductions) = 654,380+044,000 yuan.

According to the Individual Income Tax Law of People's Republic of China (PRC), the individual income tax should be: (144,000 yuan ×25%)- 1260 yuan (quick deduction) = 34,740 yuan.

Finally, the tax refund can be calculated: the taxable income is144,000 yuan-60,000 yuan (tax rate is 10%)× 10%-34, and 740 yuan (individual income tax paid) = 4,260 yuan.

How long does it usually take for the tax refund to arrive?

Under normal circumstances, the personal income tax refund can be received in about 10 working days, not more than 30 days at the latest. Tax refund refers to the tax business in which the tax authorities return the paid tax to the original taxpayer according to the prescribed procedures and formalities for some reason or under special circumstances.