Did you register as a limited company or just a trading name? If company the above applies and additionally if you are a director holding > 15% of the shares you must submit an annual directors income tax return to the Revenue.
It would be a good idea to get recommendations of a few accountants and get quotes from them. Most small companies are audit exempt, full details are on cro website, but make sure annual returns are submitted on time or exemption will be lost. the following will be the minimum required to be prepared for the company, full set of financial statements, abridged financial statements, corporation tax return - CT1, return of third party information (46G), minutes of relevant meetings and annual return B1.