Annual revenue and expenses between $5,000 and $150,000


Our standard corporate tax package includes the preparations of the Form 1120 – Federal C-Corp filing or Form 1120-S for S-Corporations, one State tax return if required, and the preparation of Form 5472 for companies with foreign ownership.

To file this tax return your annual income and/or expenses must be between $5,000 and $150,000. This threshold is not based on income the company retains, but turnover as received into the company bank account, or income received in any other way.

This package includes:

US Single Owner/Sole Proprietor:

  • Preparation of Form 1040
  • Preparation of Schedule C
  • One State Income Tax Filing (if applicable).

Foreign Single Owner/Sole Proprietor:

  • Preparation of Form 1120/1120-S
  • Preparation of Form 5472 (Foreign owners report)

Multi Owner:

  • Preparation of Form 1065
  • Preparation of Schedule K-1s for up to four members
  • One State Income Tax Filing (if applicable).

After registration instructions for how to upload your documents and a link for  our simple tax questionnaire will be sent for you to complete. After that has been submitted you will be assigned to one of our experienced accountants in the order of signup. The tax accountant assigned will reach out to you once they start your tax return for any additional information required. Your tax returns will be provided for you to review prior to GBS e-filing them with the IRS.

*Please note this is the starting price for US owned and foreign owned corporate tax preparation. For additional forms and more complex tax situations, additional fees may apply.








if billed annually



one time

Annual revenue and expenses between $5,000 and $150,000
A partner, not a provider

At GBS, we build lasting relationships that follow you from seed to expansion. Our flexible model is designed to respond to your evolving needs throughout your startup’s journey.


We have a track record of success

5+ years

For over half a decade, GBS has helped entrepreneurs take care of their books and taxes.

3,000 clients

Thousands of startups, small, and growing businesses choose GBS as their trusted financial partner.

5 continents

Teams from all over the world have used our next-gen accounting services to accelerate growth.

50 States

Our tax pros can assist C-Corps, S-Corps, and LLCs incorporated in states across the US.

Related Services


Annual revenue and expenses $5,000 or less







Annual revenue and expenses over $150,000






Free resource

Business Tax Calendar

We’ve created this handy widget to keep track of important business tax deadlines for your startup that you can automatically add to your calendar.

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Filing Deadlines

Extension Dates

Tax Payment Dates