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The leading tax credits solution

You build your customer base. We’ll work with you to find them the savings they’re owed, while saving you time.

We have a special partnership offer for QBC 2023 attendees. Join our partnership program and get:

  • Listed on our preferred accountants page
  • $500 for each successful referral
  • 25% off our fees for your clients for their first year

Fill out the survey on this page to join the partner program, or simply to provide feedback to help us improve our offering. Your feedback is appreciated!

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$200M +

Savings claimed (so far)

2,400 +

Startups & SMBs served

$20K +

Our average credit claim

Claim R&D Tax Credits for Your Small Business with MainStreet

Why MainStreet?

Thousands of customers served, hundreds of millions in credits earned

MainStreet is the #1 provider of tax credits. We have decades of combined experience that have allowed us to refine a methodology that will provide you peace of mind.

In the unlikely event of an audit, we’ll reimburse you up to $1,000,000 for any accountant fees, penalties, or interest you have to pay to the government due to a MainStreet error.

Why Tax Credits?

Billions left on the table

There is over $100B available but only a handful are getting claimed. Most businesses and accountants don’t even know they’re qualified.

Why Claim R&D Tax Credits from MainStreet
Claim R&D Tax Credit Documents from MainStreet

Come tax season, you’ll get:

The tax forms needed to file claims alongside annual tax returns.

A dedicated team of tax specialists, on hand to guide you with the next steps

A study prepared by our tax specialists that supports and substantiates tax credit claims