Without access to your tax return, I can't saw for certain.
Schedule 4 reports other taxes such as self employment and nanny taxes.
It also reports the penalty for failing to have health insurance. This is the most likely cause of the need for the form.
See this link for a copy: https://www.irs.gov/pub/irs-pdf/f1040s4.pdf
If you don't want to pay the upgrade fee, I suggest TurboTax Free File Edition.
While the name is similar to Free Edition,
there are no upgrade fees.
To you qualify
Make less than $34,000 a year or
Qualify for the Earned Income Credit or
Active military making less than $66,000
For more information, follow these links: Free File
Program and IRS
Free File Alliance.
To get started, click here: www.taxfreedom.com.
