Hello, if your patent is in the late payment period, you need to pay some additional late payment fees. The late payment period is about six months, and the late payment fee is an annual fee for each additional month. 5%. Therefore, your payment should include patent fees and late payment fees. Personal patents are difficult to manage. You can log in to the Zhonggao Intellectual Property Custody and Service System to monitor your patents, and you can also find out the specific amount of fees you should pay for your patents. It is more convenient and easier to manage. If the system function is simply monitored, there will be no delay failure.