Nevada has no income tax, so there is no Nevada tax form to file. Your income is 100% taxable by your resident state of Illinois. In TT, answer No to the question about having earnings from another state.
Also, if your employer is not withholding Illinois taxes for you, then you need to begin making quarterly estimated tax payments to IL. See this reference:
https://tax.illinois.gov/content/dam/soi/en/web/tax/forms/incometax/documents/currentyear/individual...
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
