Proud sponsor of QuickBooks Connect 2023
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!
Have questions? Contact us at qbc@mainstreet.com
$200M +
Savings claimed (so far)
2,400 +
Startups & SMBs served
$20K +
Our average credit claim

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.


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