How to add Magento2 checkout Terms And Conditions
Step 1 – To enable Terms & Conditions, First login to your magento backend.
Then click on Store -> Settings -> Configuration
Under the Sales you can find “Checkout”. Click on that.

Based on your website/store scope Change the value of “Enable Terms and Conditions” to “Yes”.
Save the configuration. This will enable the checkbox on frontend.
Step 2 – Add Terms and Conditions Content
Store -> Settings -> Terms and Conditions

Click on “Add New Condition” button.
Please fill all the content as per your need with necessary configuration.
Save Condition
Step 3 – Goto frontend add some products in a cart & go to checkout
Now you can see the checkbox here and once you click on the text/link it will display popup with the information given in Step2.
You are done 😉