1, enter the official account of "Guangxi Taxation 12366" WeChat; 2. Click "Run an Office"-"Mobile Tax" in the lower left corner of the menu bar; 3. Click "tax" below-"incremental room tax"; 4. After entering the page, read the handling instructions, enter the house location page, confirm the house location, enter the house information display page, and select the corresponding house. At this time, you can check your contract number and related information to confirm the house information.

5. Enter the buyer information page, fill in and confirm. 6. Enter the family information page, you can add spouse information and children information, fill in the information and confirm to enter the letter of credit guarantee page. 7. Enter the declaration form page and click "Pay".