Tax990 Knowledge Base Have questions? We've got you covered! Get Answers Support CA Form 199 E-Filing Can I check multiple checkboxes in Line F of CA Form 199 with Tax990? Yes, Tax990 enables you to check all the applicable checkboxes of line F in CA Form 199. Was this helpful? Yes No Need more help? Get in touch with our dedicated support team Contact Us (704) 839-2321 [email protected]