2. Taxpayers should clearly state that in their daily operations, large-value business or phased business volume has increased substantially, and apply for increasing the maximum invoice amount or the maximum number of invoices held. This is the key point, and attach the sales business form, equipment sales contract form and its copy, and the certification materials for performing the contract to prove that it fully meets the application conditions.

3. This letter (written in abbreviated words at the bottom of the text) is then written on the next line of the top box-the State Administration of Taxation or the branch office.

4. Finally, write down the applicant (taxpayer's name) and application time in the lower right corner and affix the official seal.