Ask IH: Would you use a service that automates accounting and bookkeeping for SaaS companies?

I've just started a company with Stripe Atlas, which was really streamlined and easy. I was a little surprised to learn that I'll need to pay an accountant thousands of dollars to file my corporate income taxes. I knew I would need help from attorneys and accountants, but it feels like most of this should have been automated by now. If I use Bench, I'll also need to spend $115 per month for bookkeeping.

I'm running a pretty simple SaaS app. I take payments via Stripe, spend money on Heroku and AWS, and... not much else. I feel like it shouldn't be that hard to automate my bookkeeping and automatically e-file IRS Form 1120 (and Form 5472.)

I'm thinking about building a service that does this for small SaaS startups, and companies that make money from mobile apps. I've put up a landing page: https://www.nanobooks.co

I just need to validate the idea before I start writing any code or working with accountants. Please leave a comment (or sign up for the mailing list) if this is something you need, or would have used in the past. I'd also love to hear any feedback, or advice about how I could validate the idea

Thanks very much!