What account should I code the expense of using Quickbooks to?

Allow me to share additional information, @sandraslocum.

For your QuickBooks Self-Employed subscription, it falls under the Taxes and licenses category. This way, you'll be able to categorize deductible tax and license fees related to your self-employed work. If your bank is connected to online banking, the system automatically categorizes this expense.

To learn more about the Taxes and licenses as well as the Schedule C Categories, check out the topics from this link: Schedule C and expense categories in QuickBooks Self-Employed.

As always, feel free to contact a professional accountant or bookkeeping professional if you need further assistance with recording this expense.  These individuals have the training and the know-how to help business owners such as yourself. 

Also, feel free to read the topics from our help articles in case you need references while working with QuickBooks in the future.

Let me know if you have any other questions. I'm a few clicks away to help. Keep safe and have a great day!