Capping Elites

If I cap an elite skill on one character, does that make the skill available across the account or do I have to cap the same skill on a different character also?

It is considered unlocked on your account, but you must cap it again on a different character to use it. However, heroes can directly use any unlocked skills you have on your account, even on a different character than the one you're using.
For yourself, you'd have to recap or buy an elite tome of that profession to get the skill on that character.

TY for the quick reply.

If you bought any of the unlock packs then they will be unlocked on all your characters and henchies/heros. You'd still need an elite tome to get them for your character. Most will be easier to just capture for your self though , but the option is there.

Post Script: It would be cheaper to use reg tomes on reg skills if looking for them after a unlock skill pack. After you have bough skills from trainer and not they cost you 1k ea after a certain point. uggg. Of course the unlock pask are $9.99 (when I bought them) but all the skills of that particular campaign become available.