it's pretty unlikely that it is under 1, imo.
there are, afaik (and excluding countries with like 40 cases), three places where we have a pretty decent idea of the number of people infected. not perfect, but pretty good.
1. diamond princess. they tested everyone on board. death rate 1.7% there are still patients in critical condition, so it may go up. caveat - not a natural age distribution population.
2. south korea. they still have new cases, so they didn't get everyone, but pretty close. death rate 2.2% (still going up).
3. iceland. same as s korea. death rate 0.5%. however, the majority of their infections were identified in the last three weeks, their death rate will go up more than will the dp and sk rates, who have older cases.
germany is a bit different, although they've done a great job of testing, they still get thousands of new cases every day, so they haven't come all that close to identifying everyone. at any rate their CFR is currently 2.8%, hard to say what it will end up as or what their IFR is.
coming at it from a different angle, gates has said he thought the IFR is around 1.2%. no attribution, but presumably that's an estimate from the research group he funds. and an academic paper i saw somewhere gave an estimated IFR of 1.4% from chinese data.