Yes, a 1099-B for capital gains does require an upgrade when using Turbotax online. Turbotax charges based on the complexity of your return and the forms you use, not the size of your refund. You may want to investigate other tax providers. If your income is less than $73,000, you may want to check one of the IRS FreeFile providers. Turbotax dropped out of this program.
https://www.irs.gov/filing/free-file-do-your-federal-taxes-for-free
(As mentioned, you might get a consolidated statement from your broker that includes 1099-INT, 1099-DIV and 1099-B, but if the 1099-B part is blank because you had no gains, you only need to enter the INT and DIV portions and that should not require an upgrade.
However, the Deluxe version of the desktop program, installed on your own mac or PC from a CD or download, can prepare all forms and does not need to upgrade to Premier for capital gains (although the program will suggest the upgrade, you can decline).
Lastly, if you fail to report $10 of income, that will only change your tax by $1-$3. You could take the chance of leaving the income off and seeing if the IRS notices. They might leave you alone for such a small amount. (I personally would report it, but I use the desktop program.)
