Buying a fund generally refers to a way for some people who have spare money to invest, and use their temporarily unused money to buy a fund to invest, so as to preserve value and win income.

Under normal circumstances, investors in funds will be involved in three kinds of taxes: (1) income tax, and dividends and capital gains of investors will be levied. (2) Transaction tax, that is, the tax that the fund needs to pay when trading. (3) Stamp duty, the tax payable on the relevant documents in the transaction. At present, China has not levied income tax on individual investors' fund dividends and capital gains, and the investment income obtained by institutional investors should be incorporated into the taxable income of enterprises and levied enterprise income tax. The investment object of this fund is the securities market. The fund manager has paid various tax rates stipulated by the stock exchange when investing, and investors do not need to pay transaction tax when purchasing and redeeming open-end funds. For investors to buy and sell funds, stamp duty is temporarily exempted.

The process of investors buying fund shares during the raising period of open-end funds and before the establishment of funds is called subscription. Investors who subscribe for this fund shall fill in the subscription application form and pay the subscription fee at the fund sales point. The registration authority shall go through the relevant formalities and confirm the subscription.

After the establishment of open-end funds, the process of investors applying to fund management companies for purchasing fund shares through sales agencies is called subscription.