Best MainStreet Alternatives ranked by AI · updated Aug 2026

MainStreet helps startups and growing businesses identify and claim tax credits, including the U.S. R&D tax credit. Its platform combines eligibility discovery, documentation support, and filing assistance for companies without dedicated tax-credit specialists.

Developer: MainStreet Price: Custom pricing 🎯 mainstreet.com

💰 Fintech 💡 Startups R&D Tax Credit tax credits

Top 6 MainStreet alternatives

Boast.AI

💡 Pick it for deeper R&D tax-credit expertise and broader support for research-driven companies.

Boast.AI helps innovative companies calculate and claim R&D tax credits and government incentives. It combines software with specialist review and is aimed...

Pros

More specialized in R&D tax credits than MainStreet's broader credit-discovery approach
Supports claims across multiple countries and incentive programs
Combines automated data collection with expert review

Cons

Less useful for companies seeking a broad startup-finance platform
Custom pricing makes comparison difficult
Requires detailed technical-project documentation

Custom pricing

Alternatives to Boast.AI → Visit site

Neo.Tax

💡 Choose it when your priority is a structured, evidence-heavy R&D claim workflow.

Neo.Tax provides software and professional support for preparing R&D tax-credit claims. It is built for startups, technology companies, and tax professionals that...

Pros

Strong workflow for organizing technical narratives and supporting evidence
More purpose-built for R&D claims than general startup tax platforms
Can support collaboration between companies and tax professionals

Cons

Narrower scope than MainStreet's wider tax-credit discovery
Not a replacement for bookkeeping, payroll, or tax filing
Pricing is not publicly listed

Custom pricing

Alternatives to Neo.Tax → Visit site

Pilot

💡 Pick it if you want bookkeeping, tax filing, and startup finance support alongside credit guidance.

Pilot is a comprehensive software solution for managing remote teams, facilitating communication, and tracking project progress.

Starting at $10 per user per month

Alternatives to Pilot → Visit site

Kruze Consulting

💡 Choose it for full-service startup accounting with R&D credit support from a specialized advisory firm.

Kruze Consulting provides finance, accounting, tax, and HR consulting for startups.

Custom pricing

Alternatives to Kruze Consulting → Visit site

TaxTaker

💡 Pick it for a focused R&D credit process without signing up for broader startup accounting services.

TaxTaker helps businesses calculate and document R&D tax-credit claims through a guided online process. It targets startups and growing companies that want...