Visitor's visa requirements

Hi, everyone, it’s been so long since I last applied for a visitor’s visa, but I’m taking a short break between ARC’s and I’m thinking about what I need once again to get back into Taiwan. Checklist so far: copy of work contract offered, photos, outgoing transit ticket dated prior to final date of stay, wasn’t there also a bank statement? How much did you need? Am I forgetting anything obvious here? Thanks for any help…
Bub