I'm in the process of researching a startup opportunity focusing on accounting with a CPA friend of mine. Specifically, the startup we're thinking of launching would produce monthly financial statements (P&L, Cashflow, Balance Sheet).
What we're offering here is to produce the above listed financial statements for a few startups/small businesses (USA only, sorry) from the Hacker News community for free for a month (or more if it seems worthwhile), to test the process we've developed. The basic premise of the startup is to save small businesses the trouble of using Quickbooks or similar applications, and to enable them to upload a (hopefully pretty simple) list of documents from which accurate, third-party, objective financial statements are produced. In a sense what we're considering is similar to tripit.com, except the information will be uploaded via the web instead of forwarded by email, and we'll produce financial reports, not trip itineraries.
We know that financial information is sensitive and confidential, and we will treat it accordingly. Fortunately, there is a CPA on board to ensure that all rules, regs, and best practices are followed. Nonetheless, since this is such a sensitive matter, we'd like to request some time to talk with whoever might take us up on this offer to discuss confidentiality and security issues before any information exchange takes place. If you have any questions, I'd be happy to answer them here, and you can look up my personal email address in my HN profile. Thanks!
If people are going to trust their accounting to you to provide you with test users, I think you should at least provide the first 10 or 20 test clients with a free service for a year. Changing accountant is a big deal and so "one month free" is not much at all.