Hi orenoroborus,
I'm here to ensure you can record the donations correctly.
When you make donations or charitable contributions, how you record them depends on the type of donation you've made. Recording a cash donation is different from recording the donation of products or services that you usually sell.
To donate cash, you can set up the charitable organization you're donating to as a vendor so that, when you make a donation, you can record it as a check or a bill and payment. Then, make sure to select an expense account.
To ensure you choose the appropriate account, I suggest reaching out to your accountant so they can guide you accordingly.
You can review this article that has lists of different expense categories: Schedule C and expense categories in QuickBooks Self-Employed.
Moreover, I've added this link to get your self-employed tax information into TurboTax: Send QuickBooks Self-Employed tax info to TurboTax Self-Employed or Live.
Keep me posted whenever you have tax concerns.