Let's say you want to ask someone for help, you describe your issue, and then add:
Any help would be appreciated.
? Or "is appreciated"? Or "will be"? Any other way?
"is appreciated" probably sounds too premature (?), because the person might end up not helping you. "will be" probably sounds like an obligation to say "thank you", praise or award. The way it sounds to me, but I'm not a native speaker.
Best Answer
"Any help would be appreciated" is probably the most natural and idiomatic way of making this point.
As you suggested, "is" does indeed sound premature. I'm not sure I understand your last sentence, but "will be" isn't too bad here. It does sound a little bit presumptuous in the sense that it creates more of an assumption that help "will" be provided, whereas "would be" doesn't assume that anything will be offered. But this effect is very slight. In any case, "would be" is very common, so just go with that.