Insights

Boutique tax focus Supports small to medium-sized business owners with tax preparation, planning for complex multi-entity structures, and IRS compliance support, indicating potential cross-sell of advisory services to growing firms seeking streamlined tax processes.

Virtual CFO niche Provides virtual CFO and Controller services, suggesting opportunities to upsell scalable financial leadership as clients mature or experience scale-driven needs.

Tech-enabled workflow Utilizes modern tech stack (WordPress, Google Cloud, CRM/marketing tools) to deliver organized workflows; potential to propose efficiency consulting, integration of cloud-based accounting platforms, or data analytics offerings.

Medium revenue target Annual revenue in the 1–10 million range and a lean team (2–10 employees) points to appetite for cost-effective, outsourced back-office services and scalable pricing for expanding client needs.

Compliance risk care Emphasizes delinquent filings and IRS notice support, signaling a market for proactive tax risk management services, outreach for late-filing remediation packages, and ongoing compliance monitoring for growing clients.

Similar companies to Onyx Tax, LLC

Onyx Tax, LLC Tech Stack

Onyx Tax, LLC uses 8 technology products and services including WordPress, Segment, Shopify, and more. Explore Onyx Tax, LLC's tech stack below.

Onyx Tax, LLC's Email Address Formats

Onyx Tax, LLC uses at least 0 email formats:
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Frequently Asked Questions

What is Onyx Tax, LLC's phone number?

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You can contact Onyx Tax, LLC's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Onyx Tax, LLC's official website and social media links?

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Onyx Tax, LLC's official website is onyxtax.com and has social profiles on LinkedIn.

How much revenue does Onyx Tax, LLC generate?

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As of September 2026, Onyx Tax, LLC's annual revenue is estimated to be $1M - $10M.

What is Onyx Tax, LLC's SIC code and NAICS code?

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Onyx Tax, LLC's SIC code is 8721 - Accounting, Auditing, and Bookkeeping Services and NAICS code is 5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services.

How many employees does Onyx Tax, LLC have currently?

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As of September 2026, Onyx Tax, LLC has approximately 6 employees across 1 continents, including North America. Key team members include Vice President Credit Administration: J. W., Vice President Community Banking Sales Team Leader: T. C. and Associate Vice President: S. D. Explore Onyx Tax, LLC's employee directory with LeadIQ.

What industry does Onyx Tax, LLC belong to?

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Onyx Tax, LLC operates in the Accounting industry.

What technology does Onyx Tax, LLC use?

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Onyx Tax, LLC's tech stack includes WordPress, Segment, Shopify, Google Cloud, jQuery Migrate, Brevo, WP Engine and Yoast SEO.

When was Onyx Tax, LLC founded?

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Onyx Tax, LLC was founded in 2016.
Onyx Tax, LLC logo

Onyx Tax, LLC

AccountingSouth Carolina, United States2-10 Employees

Onyx Tax, LLC is a boutique accounting firm based in Charleston, South Carolina, serving small to medium-sized business owners since 2016. The firm provides tax preparation and planning for complex, multi-entity organizations, along with IRS notice and compliance support to address delinquent filings and payment issues. It also offers virtual CFO and Controller services to give high-level financial guidance without the cost of a full-time hire, with an emphasis on clear communication, reliability, and organized workflows to keep clients compliant and confident. The company operates within the accounting industry, positioning itself as a practical partner that aims to reduce stress and simplify financial processes for its clients. Onyx Tax, LLC serves business owners seeking structured tax management and strategic financial oversight, supported by its location in Charleston and its focus on helping clients maintain a smoother, more predictable tax experience.

Section iconCompany Overview

Phone number
SIC Code
8721 - Accounting, Auditing, and Bookkeeping Services
NAICS Code
5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Founded
2016
Employees
2-10

Section iconFunding & Financials

  • $1M - $10M

    Onyx Tax, LLC's revenue is estimated to be in the range of $1M - $10M

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