Claim Tax Credits
The leading tax credits solution
MainStreet takes the guesswork out of tax credits and passes the savings on to you.
Thousands of dollars are waiting, don’t miss your deadline and get started today.

$150M +
Savings claimed (so far)
2,000 +
Startups & SMBs served
$100K +
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
MainStreet works seamlessly with your CPA
Our team of tax specialists — former accountants at the Big Four — know what your CPA will need:
· Save them time and let them focus on your main filing.
· Easily add your CPA to collaborate on your MainStreet account.
· Send them what they need with the click of a button.

Savings made simple
Sign up for free in just 5 minutes. We search through 200+ credits, finding the ones that best suit your business. Once you qualify, we do the heavy lifting to claim your tax credits and pass the savings on to you.