You're required to file a non-resident tax return in any state in which you physically perform your work, if your income exceeds that state's filing threshold for non-residents. You can find each state's non-resident filing requirement on the state's tax website.
It may be true that "few do" comply with this requirement, but the purpose of this forum is to acquaint you with the tax laws that apply to your situation.
The fact that you are Florida residents simply means that your income will not be taxed by the State of Florida. It does not relieve you of your possible tax obligations to other states.
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
