Case Studies
Feb 6, 2025

Zuzanna Ostrowska
IN this article
How Fini AI helped Column Tax level up their customer support. Fini didn't just help Column Tax manage their support — it transformed the way they work. By handling complex queries with 90+% accuracy and taking on 70+% of their support load, Fini enabled Column Tax to focus on what matters most: delivering exceptional taxpayer experience
Company Name: Column Tax
Industry: Embedded Tax Filing Services
Support Platform: Zendesk
CX Owners: Lori McCool (Head of CX), and Ryan Seekely (Head of Engineering)
About the company
Column Tax is the first ever IRS-authorized API-first tax filing product. Column Tax offers embedded tax filing through business-to-business partnerships, with maximum refund and accuracy guarantees, designed for a broad taxpayer base including individuals, gig workers, and Schedule C small businesses. As tax season approaches, Column Tax Support is preparing to meet taxpayers where they are in their tax filing experience with accurate, helpful, and concise information so they can complete their tax returns with confidence.
The Challenge: Leveling up Taxpayer Support
When Lori and Ryan reached out to us they knew AI would be the most scalable way to provide 24/7 personalized support. However, they had already spoken with multiple vendors, including some large enterprise solutions, and none seemed to check all the boxes.
Column Tax required a solution that could meet their high standards and cover:
Complex Tax Queries
Tax questions are often complicated, and most AI tools struggle to keep up. While many solutions can handle simple inquiries, they fall short when the questions become more complex. Column Tax needed an AI that could go beyond basic answers and tackle tough, detailed queries with very high accuracy.Need for Categorization and Insights
It was crucial for Column Tax to gain insights into what their customers were asking. They needed a tool that could accurately categorize queries and provide valuable data on common issues. These insights would help them improve their product and better understand the challenges their users were facing.Seamless Zendesk Integration
Since Column Tax was already using Zendesk for both email and chat support, the new AI had to fit right in without disrupting the team's workflow. They also wanted a tool that could be easily transferred to other platforms in the future if needed.End-to-End Ticket Handling
The AI solution needed to do more than just generate answers, it had to handle the entire ticket process. This included discerning the intent, customizing answers based on the business-to-business partner the taxpayer was associated with, categorizing the query, resolving queries at a high rate, and solving the related tickets, or routing more complex tickets to human agents without missing a beat.
The Search: Why Column Tax Chose Fini
Column evaluated 6 AI solutions, but Fini stood out for three critical reasons:
Unmatched Accuracy – With an accuracy rate above 90% in answering both basic and complex queries, Fini exceeded the industry standard, which hovered around 80%. This level of precision was especially crucial for the sensitive and complex nature of tax-related questions.
Comprehensive Coverage – Column Tax’s goal was to cover over 70% of all inbound support queries, and Fini’s sophisticated AI product offered the depth and flexibility to meet that target quickly and reliably.
Headless Integration – Fini’s no-code, headless product enabled seamless integration across multiple platforms like Zendesk chat and email. For Lori and her team, this meant a future-proof solution that could scale and adapt as their needs evolved.

“We needed an AI that didn’t just answer tickets but solved problems and really helped people. Fini’s accuracy in complex scenarios was a game-changer for us.” – Lori McCool, Head of Taxpayer Support
Onboarding Column Tax to Fini: Fast, Intelligent, and Efficient
Fini's onboarding process was designed to get Column Tax ready before the tax season. In just 12 weeks, we fully integrated the AI solution, customizing it to handle complex tax queries, seamlessly connect with Zendesk, and utilize personalized customer and partner data, all while minimizing disruption to the support team’s workflow. Fini onboarding team (AI engineers, Zendesk specialist, and customer success team) worked closely with Lori, Head of Column’s Taxpayer Support and an Engineer to ensure the onboarding process was smooth, without disrupting ongoing support operations.
1. Understanding Column Tax’s Needs
Duration: 1-2 weeks
Fini kicked off the project by conducting a series of in-depth meetings with the Column Tax support team. During this phase, we focused on understanding their key challenges:
Handling complex tax-related queries.
Integrating seamlessly with Zendesk, their primary support tool.
Pulling in personalized customer data, like taxpayer and partner organization names, to customize and ensure accurate responses.
Together, we defined clear goals: high accuracy (above 90%), reducing agent load by resolving at least 70% of tickets automatically, and ensuring a smooth, non-disruptive integration.
2. Customizing and Training Fini’s AI
Duration: 2-3 weeks
Once we had a solid understanding of Column Tax’s needs, our team began fine-tuning Fini’s AI. We trained the AI using Column Tax’s Zendesk macros, historical tickets, tax-specific data, and user attributes. This step ensured that Fini could:
Handle both basic and complex tax questions.
Categorize tickets accurately for efficient resolution.
Use personalized data from multiple sources to provide tailored answers. At this stage, we also worked on ensuring the AI adhered to strict accuracy standards, relying only on verified information to avoid any missteps in responses.
3. Pilot Deployment and Testing
Duration: 4 weeks
With the AI trained, we deployed it in a controlled sandbox environment within Column Tax’s Zendesk platform. During this pilot phase:
Fini AI added internal comments to support tickets, with the major objective of identifying how Fini would run in a real world scenario with actual customer questions.
Real-Time Monitoring – Throughout the implementation, Fini’s team provided hands-on support, closely monitoring the AI’s performance to make real-time adjustments. This proactive approach ensured that Column Tax was always getting the best possible outcomes from the AI.
Feedback was gathered from the support team to identify any areas for improvement. This phase was crucial in fine-tuning the AI’s ability to handle tax-specific inquiries and ensuring seamless operation within Column Tax’s existing workflows.
4. Full-Scale Rollout and Optimization
Duration: 2-3 weeks
After the successful pilot, Fini’s AI was rolled out across all of Column Tax’s support channels. During this phase:
The AI took over 70% of ticket volume, significantly reducing the load on human agents.
We continued monitoring the system in real-time and made adjustments based on user feedback to further improve accuracy and response times.
Ongoing training was provided to Column Tax’s team to ensure they could maximize the AI’s capabilities and maintain high customer satisfaction during peak tax season.
The Results: Fini Delivers Beyond Expectations
Fini didn’t just meet Column Tax’s needs; it exceeded them. One thing that sets Fini apart is that we work very closely with our customers because we truly believe that we can never be successful without our customers getting 10x ROI from our product.
Here is what we achieved together:
70+% of Inquiries Resolved Without Human Intervention – Fini’s AI took over the majority of customer queries, freeing up Column Tax’s support agents to focus on high-value interactions.
Increased Accuracy and Customer Satisfaction – With a 90+% accuracy rate in handling complex tax questions, customers received precise and timely answers, significantly boosting satisfaction levels.
Faster Response Times – Fini’s automation reduced response times 24/7 ensuring customers received instant support even while working on their taxes overnight and during during peak inquiry periods.
Reduced Support Load – The efficiency gains allowed Column Tax to handle its rapid growth affordably. Fini’s AI reduced the burden on human agents, improving both productivity and employee morale.
Zero code product - Fini is able to achieve all this with almost zero code from Columntax. Having a non-engineer be able to integrate Fini with Zendesk, and to improve Fini’s AI model makes all the difference.

"Fini wasn’t just a product, it was a partner. They worked with us every step of the way, making sure we were prepared for the tax season rush."
– Lori McCool, Head of Taxpayer Support
Key Metrics Post-Implementation:
70+% tickets are handled by Fini end-to-end. One step closer to Zero Inbox.
90+% accuracy in Fini’s responses to customer queries.
Immediate response time to customer inquiries.
Conclusion
Fini didn't just help Column Tax manage their support — it transformed the way they work. By handling complex queries with 90+% accuracy and taking on 70+% of their support load, Fini enabled Column Tax to focus on what matters most: delivering exceptional taxpayer experiences. If you're looking for a solution that boosts efficiency, reduces workload, and improves customer satisfaction, Fini is the partner you can rely on. Ready to see the difference? Let Fini help you deliver smarter, faster support today.
Zendesk + AI Integration
1. How did Fini integrate with Column Tax’s existing Zendesk system?
Fini was deployed across both email and chat in Column Tax's Zendesk instance. Its headless, no-code architecture enabled seamless setup, with minimal engineering effort. This allowed the AI to analyze incoming tickets, personalize responses, categorize them, and even draft internal comments or direct replies—all within Zendesk.
2. Can Fini work with both chat and email workflows in Zendesk?
Yes, Fini supports both email and chat workflows in Zendesk. It identifies the ticket type, discerns the intent, and either resolves the query directly or routes it appropriately. Column Tax leveraged this to deliver consistent support across all Zendesk channels.
3. Did the Zendesk integration require engineering support from Column Tax?
Almost none. Fini’s zero-code integration enabled a non-engineer to set up and launch the system. The onboarding relied more on configuration and content training than on custom engineering.
4. How did Fini handle ticket categorization within Zendesk?
Fini automatically applied relevant tags and categories to each ticket using Zendesk’s existing macros and taxonomy, helping the Column Tax team derive insights into recurring support themes.
5. Was Fini’s deployment disruptive to existing Zendesk workflows?
Not at all. Fini’s team worked closely with Column Tax’s support leads to ensure that all workflows remained intact. The AI was introduced gradually via a sandbox test phase, before expanding to full deployment.
Accuracy & Performance
6. How accurate was Fini in answering complex tax-related questions?
Fini consistently delivered over 90% accuracy on both simple and complex tax queries, significantly outperforming the industry standard of around 80%.
7. What makes Fini better at handling complex questions compared to other AI tools?
Fini goes beyond surface-level retrieval. It is trained on historical tickets, macros, and user attributes, and it continuously adapts by learning from real user interactions—especially useful in complex and high-stakes domains like tax.
8. How was Fini’s accuracy measured at Column Tax?
Accuracy was evaluated through manual human review. Support agents rated AI replies, with over 91% marked as “perfect” and 98% as “good or perfect.”
9. Did Fini use only verified knowledge for tax-related responses?
Yes, Fini’s answers were grounded in approved macros, trusted knowledge base sources, and real support interactions to ensure compliance and trustworthiness.
10. How does Fini reduce hallucinations in high-risk domains like tax?
Fini uses policy-aware guardrails, strict source constraints, and retrieval validation to ensure it doesn’t generate ungrounded or speculative answers.
Automation and Ticket Resolution
11. What percentage of Column Tax’s support tickets did Fini handle end-to-end?
Fini successfully resolved over 70% of all support tickets end-to-end, eliminating the need for human intervention in most inquiries.
12. Could Fini distinguish between different taxpayer segments or partners?
Yes, Fini dynamically used user context and partner organization data to customize responses per taxpayer—critical in a B2B2C product like Column Tax.
13. How did Fini know when to escalate a ticket to a human agent?
Fini was configured to escalate tickets that fell outside its confidence threshold, ensuring human agents stepped in only when necessary.
14. Was there a decrease in average response time after Fini’s deployment?
Yes, Fini offered instant 24/7 responses, drastically reducing wait times during peak tax season—including overnight inquiries.
15. Did Fini improve first contact resolution (FCR) rates?
Absolutely. With its high accuracy and ticket categorization capabilities, Fini resolved the majority of tickets on the first attempt, improving both CSAT and efficiency.
Use Case Fit
16. Why did Column Tax choose Fini over other AI support vendors?
Column Tax evaluated six AI vendors, but Fini stood out for its unmatched accuracy, deep Zendesk integration, and headless flexibility that could scale across platforms.
17. What specific use cases did Fini address for Column Tax?
Fini handled complex tax questions, partner-specific logic, categorization, ticket resolution, and routed escalations—all while providing real-time insights.
18. Was Fini able to personalize responses based on taxpayer history?
Yes. Fini could tailor answers using partner details, taxpayer type, and past interaction data—making it highly contextual and personalized.
19. Did Fini help Column Tax during peak tax season?
Definitely. Fini was deployed just in time for tax season, and its automation helped Column Tax handle surges in ticket volume without adding headcount.
20. Can this same setup work for other fintech or government-compliance businesses?
Yes, any company dealing with sensitive, complex, or compliance-heavy support needs (like insurance, credit, or healthcare) can benefit from Fini’s secure, high-accuracy automation.
Insights and Analytics
21. Did Column Tax get visibility into user queries using Fini?
Yes, Fini provided categorized query insights, enabling the Column Tax team to understand top pain points and areas for product improvement.
22. What analytics did Fini provide post-deployment?
Fini shared metrics such as ticket resolution rates, top categories, accuracy breakdowns, agent deflection impact, and more.
23. Could Fini track success per partner or B2B segment?
Yes, with partner-tagged data, Fini helped Column Tax see support trends by business partner, user segment, and issue type.
24. Were analytics visualized in Zendesk or Fini’s dashboard?
Fini maintained a separate, AI-native dashboard where Column Tax could drill into performance data and feedback loops.
25. Did Fini help improve support documentation indirectly?
Yes. By surfacing uncategorized or novel queries, Fini helped identify documentation gaps and supported proactive content updates.
Onboarding & Support
26. How long did it take to fully onboard Fini at Column Tax?
The entire onboarding process—from kickoff to full rollout—took just 12 weeks, including integration, training, testing, and deployment.
27. What made onboarding Fini fast and efficient?
Fini provided dedicated AI engineers, a Zendesk specialist, and a customer success manager. Together with Column’s CX and engineering leads, they collaborated closely on configuration and tuning.
28. What happened during Fini’s sandbox test phase?
Fini was piloted in a safe environment where it provided internal comments only. This helped validate performance without impacting customers directly.
29. How was feedback from Column’s support team incorporated?
Fini’s team gathered real-time feedback during testing and tuned the AI to better reflect tone, accuracy, and relevance based on real-world scenarios.
30. Was ongoing support provided after launch?
Yes. Fini’s team continued working with Column Tax post-launch to monitor quality, adjust configurations, and train the team on optimization strategies.
Impact and Results
31. What impact did Fini have on agent workload?
By resolving over 70% of tickets autonomously, Fini allowed Column Tax’s agents to focus on edge cases and escalations, greatly improving morale and productivity.
32. How did Fini affect customer satisfaction (CSAT)?
With fast, accurate, and contextual answers, customer satisfaction improved significantly—especially during critical tax filing periods.
33. Were there measurable cost savings after implementation?
Yes. Reducing agent load and improving resolution times translated to substantial operational savings, especially during high-volume periods.
34. How did Fini support operational scalability?
Fini allowed Column Tax to handle growth without hiring additional support staff, providing a scalable, future-proof solution.
35. What made Fini feel like a partner rather than a vendor?
Fini’s collaborative onboarding, high-touch support, and commitment to shared success made them feel like an extension of Column’s internal team.
Security, Compliance, and Flexibility
36. Did Fini comply with data privacy and security standards?
Yes. Given the sensitive nature of tax information, Fini implemented strict PII masking, scoped access, and compliance protocols for safe operation.
37. Was the AI grounded in verified, source-backed data?
Always. Fini answered based on trusted knowledge sources—macros, documentation, and previous support interactions—ensuring reliability.
38. Can Fini’s deployment be moved to another platform beyond Zendesk?
Yes, Fini’s headless design allows it to be ported to other platforms such as Intercom, Salesforce, or HubSpot without rebuilding the model.
39. Is Fini suitable for other B2B2C businesses with complex logic?
Absolutely. Its partner-aware logic, personalization layer, and adaptive learning make it ideal for B2B2C use cases across sectors.
40. What’s the best way to try Fini for a similar setup?
You can book a demo with the Fini team, walk through your support challenges, and launch a sandbox trial in under a week.
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