Tax Filing

The future of taxes for startups

Next-level collaboration between tax experts and technology takes the hassle out of filing your US corporate taxes so you can get back to scaling your business.

What‘s Included

Flat-rate tax returns for all sizes of startups

Maintain compliance, maximize savings, and reduce admin time for your startup with the help of our cost-effective tax filing for C-Corps, S-Corps, and LLCs.

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Dedicated accountant

Your assigned accountant will guide you through the process every step of the way.

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Tax-saving techniques

We review your situation to uncover every possible tax credit and deduction for your business.

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Fast turnaround times

Never miss a deadline. Our advanced tech and expert tax team will help you file quickly.

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Fully remote tax filing

Convenient online document-sharing, communication, and e-file make it easy to work with us.

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Trusted privacy & security

We protect your data and identity with industry-leading security practices.

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100% Compliant. Guaranteed.

We stand behind our work. In the unlikely event of an audit, we’ve got your back.


A new solution to an old challenge

At GBS, we’re pioneering a new way to help rapidly growing businesses solve their tax problem. We leverage an efficient tech stack paired with personalized care to deliver more value.


Top tax pros for startups

Bootstrapping to Series A and beyond, we’ve got you covered. Our tax experts have years of experience working with companies just like yours.

Multiple reviews by IRS enrolled agents

Up-to-date with the latest tax legislation

Founded and run by entrepreneurs


Finally get an ROI on your taxes

When it comes to investing in your startup’s future, we know that every dollar counts. Extend your runway by maximizing every dollar in tax savings.

Flat-rate tax return pricing

Discover credits and deductions

All-inclusive solutions available

our clients

More than 3,000 companies use GBS

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