Mainstreet
Mainstreet is a financial technology company that provides comprehensive back office solutions designed specifically for small businesses. The platform streamlines bookkeeping, discovers hidden tax credits, and helps manage finances through an AI-powered suite of tools.
Overview
Mainstreet helps small businesses automate their back office operations, allowing them to reclaim time and focus on growth. The platform has served tens of thousands of businesses and has discovered millions in tax credits for its clients.
Key Offerings
- Automated Bookkeeping: Eliminates manual spreadsheets and receipt management
- Tax Credit Discovery: AI-powered identification of eligible tax credits and deductions
- Financial Management: Unified platform for all financial operations
- Interactive Tools: Tax savings calculators and ROI visualizations
Partnerships
Mainstreet partners with leading financial and business platforms including Gusto, Relay, Bluevine, Shopify, and Square to provide integrated solutions.
Banking Services
Mainstreet is a financial technology company (not a bank). Banking services are provided by i3 Bank, Members FDIC. Visa® debit cards are issued by i3 Bank pursuant to a license from Visa U.S.A. Inc.
Target Audience
Small business owners and entrepreneurs looking to automate their back office operations, streamline bookkeeping, and discover tax savings opportunities.
Key Features
- Automated bookkeeping and receipt management
- AI-powered tax credit discovery
- Interactive tax savings calculator
- ROI journey visualization and tracking
- Integration with major platforms (Gusto, Shopify, Square, etc.)
- Unified financial dashboard
- Pass-through FDIC deposit insurance
- Visa debit card access
Use Cases
- Small business back office automation
- Tax credit and deduction discovery
- Bookkeeping streamlining for growing businesses
- Financial workflow optimization
- Consolidating multiple financial tools into one platform
Pros
- Comprehensive all-in-one back office solution
- AI-powered tax credit discovery can find hidden savings
- No setup fees and cancel anytime policy
- 30-day free trial available
- Integrations with popular business platforms
- SOC 2 compliance (pending) for security
Cons
- Specific pricing not publicly listed - requires custom quote
- SOC 2 compliance still pending
- Banking services provided through partner bank, not directly
- Foreign transaction fees may apply in some cases
Pricing
Custom pricing based on business needs and transaction volume. No setup fees. 30-day free trial available. Cancel anytime.


