I am a US citizen that has lived in a foreign country for 25 years. For the past 7 years I have not had an income. My spouse is the income producer and he is not a US citizen. I have not filed taxes since I have lived here. When I was working here, I never made more than the foreign exclusion limit. As I currently (and for the past 7 years) do not have an income, am I still required to file a tax return every year?
You are only required to file a tax return if your gross income exceeds certain levels. If you have had no income, then no tax return is needed - See table 1 here:
When you do indeed have income, even if below the foreign earned income exclusion amounts you must still file a tax return.
Lastly, I would caution you to keep in mind FBAR filing requirements.