How do I declare donations to biolife when they openly declare they don't send out 1099's but they submit them to the government?

If you donated plasma to Biolife, that is not technically a donation, instead it is you selling your plasma.  This is actually considered self-employment income, which is why TurboTax is treating it as a business.  A business doesn't mean you need to file special paperwork for form it, it simply means your income needs to be reported on Schedule C.  Schedule C is for those who go out  and are performing a service or selling something for money and are not doing for the sheer enjoyment of the act (which would then be considered a hobby)

So yes, it is income, but it is self-employment income.  So to enter this, you do not need a 1099, you simply need to use your records.  You can use your bank account records for deposits or if they gave you a prepaid card, you can use the transactions on that.

Self-Employment and Business Income

To enter your self-employment income select the following:

1. Federal
2. Income and Expenses
3. Show More next to Self-Employment
4. Start next to Self-Employment
5. Yes, to you have any self-employment income or expenses
6. Enter the type of self-employment work you do and you can select that you use your name for your business
7. Click through a few more screens and you will get to a screen that says "Your XX info"
8. Click Looks good
9. Then you will come to a screen that says Let's enter the income for your business.  It will give you the option of 1099-NEC or Other self-employed income including the 1099K , cash and checks. 
10. If you do not select one, it will not let you enter your income
11. Enter your self-employment income on the next screen
12. Continue and on the next screen click add expenses

* Please note navigation may differ slightly depending on which version of TurboTax you are using*

The income and expenses as an independent contractor  will be reported on Schedule C which is part of your overall tax return. This also means you will be subject to the 15.3% SE Tax on the profit.  If you did not pay Self Employment (SE) Taxes in 2025, and if you plan to do this again in 2026, it may be a good idea to make estimated quarterly payments to avoid penalties if you are making more than $400 a year.