What is Optotax?

Optotax is India’s fastest-growing GST compliance platform, built for tax professionals by tax professionals.

Our mission is simple yet ambitious: to make GST compliance effortless for Chartered Accountants, Tax Advocates, Tax Practitioners, and businesses across India. From reconciliation to return filing and notice replies to challan management, Optotax brings every piece of GST compliance under one powerful, intuitive platform.

Today, over 85,000 tax professionals and 5,00,000+ businesses rely on Optotax to stay compliant, avoid penalties, and save time every single month.

What Does Optotax Mean?

‘Opto’ comes from the Greek word optos, meaning visible, and is rooted in opsesthai—to see. It’s also connected to ṓps, meaning “eye” or “face”.

At Optotax, that meaning comes to life in how we simplify tax compliance—Making your GST data visible, accurate, and actionable.

Optotax = Optimal Tax Compliance

No complexity. No blind spots. Just complete visibility across all your clients and filings.

Our Vision

To build India’s most trusted and intelligent tax technology platform—empowering every finance professional and business to stay compliant, audit-ready, and in full control of their GST lifecycle.

We envision a future where GST compliance goes beyond deadlines and filings—becoming a driver of better cash flow, faster credit claims, and stronger client relationships.

What We Stand For

These values shape every dashboard, feature, and report we deliver.

Built for the Real World GST Workflows

Deadlines, mismatches, delayed vendor filings—we know what everyday GST work looks like. That’s why Optotax is built to solve practical, everyday GST challenges faced by professionals and businesses.

Clarity, <br/>Not Complexity

GST shouldn’t feel like a black box. From return statuses to reconciliation gaps, we bring complete visibility—client-wise, GSTIN-wise, and report-wise—so you can act with confidence, not assumptions.

Simpler, Not Basic

Behind every clear GST interface is a powerful engine. Smart validations, reconciliations, reports—all designed for speed without compromising depth.

We Listen, We Evolve

From support chats to roadmap votes—our product evolves based on your needs. We stay curious, learn constantly, and act on what matters to our users.

Built to Scale

Whether you manage 10 clients or 100 GSTINs, Optotax adapts to your practice with the same speed, clarity, and reliability.

Purpose-Built for Compliance

Every feature is built with compliance at its core, so you’re not just meeting deadlines, you’re ahead of them with tools that think like you do.

Trusted by Professionals

With over 85,000+ CAs and tax practitioners using Optotax, we know trust isn’t just earned—it’s engineered. We back every feature with security, uptime, and accuracy—because reliability is not optional.

Backed by OPEN, Built for You

As a part of OPEN, India’s leading SME fintech network, we combine tax-first automation with enterprise-grade infrastructure—giving professionals the strength of a platform built to scale.

Built for the Real World GST Workflows

Clarity,
Not Complexity

Simpler, Not Basic

Behind every clear GST interface is a powerful engine. Smart validations, reconciliations, reports—all designed for speed without compromising depth.

We Listen, We Evolve

From support chats to roadmap votes—our product evolves based on your needs. We stay curious, learn constantly, and act on what matters to our users.

Built to Scale

Whether you manage 10 clients or 100 GSTINs, Optotax adapts to your practice with the same speed, clarity, and reliability.

Purpose-Built for Compliance

Every feature is built with compliance at its core, so you’re not just meeting deadlines, you’re ahead of them with tools that think like you do.

Trusted by Professionals

Backed by OPEN, Built for You

As a part of OPEN, India’s leading SME fintech network, we combine tax-first automation with enterprise-grade infrastructure—giving professionals the strength of a platform built to scale.

Built for the Real World GST Workflows

Clarity,
Not Complexity

Simpler, Not Basic

Behind every clear GST interface is a powerful engine. Smart validations, reconciliations, reports—all designed for speed without compromising depth.

We Listen, We Evolve

From support chats to roadmap votes—our product evolves based on your needs. We stay curious, learn constantly, and act on what matters to our users.

Built to Scale

Whether you manage 10 clients or 100 GSTINs, Optotax adapts to your practice with the same speed, clarity, and reliability.

Purpose-Built for Compliance

Every feature is built with compliance at its core, so you’re not just meeting deadlines, you’re ahead of them with tools that think like you do.

Trusted by Professionals

Backed by OPEN, Built for You

As a part of OPEN, India’s leading SME fintech network, we combine tax-first automation with enterprise-grade infrastructure—giving professionals the strength of a platform built to scale.

About OPEN

In 2023, Optotax became a part of OPEN Financial Technologies, India’s leading SME-focused financial technology company and the country’s 100th unicorn. This integration brings together Optotax’s robust tax automation strengths with OPEN’s proven infrastructure and innovation in financial operations.

With Optotax, professionals can do more than just file returns—they can manage the entire GST lifecycle, build stronger client relationships, and unlock value beyond compliance.

Backed by Global Leaders

As part of OPEN Financial Technologies, Optotax is supported by some of the world’s top investors, including Tiger Global, Temasek, 3one4 Capital, SBI Investment, and Speedinvest. Together, we are reimagining how finance and compliance come together—securely, smartly, and at scale.

Our Impact

85,000+

Tax professionals onboarded
5,00,000+

Businesses supported
30,000+

Records reconciled per minute
20+

GST reconciliation reports available for free

We exist to make GST compliance effortless—by giving professionals and businesses the tools to file faster, reconcile smarter, respond to notices efficiently, and stay 100% audit-ready.

We’re not just building features - We’re building the most reliable platform tax professionals can trust—and grow with.