Doing your own corporate tax filing with the assistance of a software program helps ensure your entries are accurate. I'll be happy to steer you in the right direction with this.
Based on your description above, I suggest checking out ProFile by Intuit. ProFile is a powerful Corporate Tax Preparation Software which offers some of the highlights I've listed below:
I encourage you to learn more about ProFile using this link here. In case you have other questions, don't hesitate to reach out in the comments below. I'll be happy to assist.
Otherwise, have a great rest of the week.