What is the cheapest way to file first time 1120s?

[Anonymous_ · Accepted solution]

You can purchase TurboTax Business from Amazon currently for a little over $100.

See https://www.amazon.com/TurboTax-Business-2019-Software-Download/dp/B07YH3HBL6

However, if this is actually your first 1120-S, you should most likely seek professional guidance or professional income tax preparation.

[AmeliesUncle]

The cheapest way is to go to a good tax professional, because that will save you penalties, interest, and audits from doing things wrong.  A good tax professional can also potentially advise you on how to do things to save more taxes.

In the long run, doing it yourself can be the most expensive way of doing a corporate return.