5 Providers That Offer Secure Tax Preparation Support for CPA Firms 

5 Providers That Offer Secure Tax Preparation Support for CPA Firms 
What are the top-rated outsourced tax preparation services for medium-sized CPA firms?

Most CPA firm owners assume the risk in offshore tax preparation is the offshore part. It isn’t. The risk is trusting a provider’s word instead of asking for proof, and that distinction is where firms get burned. 

In the first half of 2025 alone, nearly 300 tax professional data breaches were reported, affecting as many as 250,000 clients. That number includes firms that never sent a single file offshore. Data theft doesn’t discriminate by geography. It discriminates by whoever skipped the verification step, wherever they happen to be sitting. 

This article covers what security actually requires under IRS rules, which certifications are worth asking for by name, and which established providers hold up once you check. 

5 providers worth evaluating for secure tax preparation

A provider’s marketing page will tell you they’re “committed to security.” That phrase means nothing on its own. What actually matters is which specific certifications they hold, how they handle the Section 7216 consent process, and whether they can name the exact location their client data sits in.  

Here’s how a handful of established tax preparation outsourcing companies USA firms rely on actually stack up against those questions: 

Security certifications, delivery model / IRC Section 7216 relevance, and data location for five tax preparation outsourcing providers
Provider Certifications publicly documented Delivery model & Section 7216 relevance Where client data is handled
Datamatics Business Solutions (DatamaticsCPA) AICPA SOC 1 Type II, SOC 2 Type II, ISO/IEC 27001:2022, ISO 9001:2015, GDPR Offshore delivery team — 7216 consent applies.  Mumbai, Maharashtra, India (named facility)
Entigrity States “compliance with SOC, ISO, and GDPR standards” — report type, ISO number, and auditing firm not named publicly Offshore delivery team — 7216 consent applies Multiple India offices (Ahmedabad HQ, plus Mumbai and Vadodara)
QX Accounting Solutions (QXAS) SOC 2 Type II, ISO 27001:2022, ISO 27701, Cyber Essentials Plus, GDPR — audited by British Standards Institution (BSI) Offshore delivery team — 7216 consent applies.  India, via QX Global Group operations
Analytix Solutions States “Globally Compliant ISO 27001:2022, HIPAA, SOC 2” — SOC 2 type and auditing firm not specified publicly Hybrid model — whether 7216 consent applies  US HQ in Woburn, Massachusetts, with delivery operations also in India (including Pune)
Paro No company-wide SOC 2 report or ISO 27001 certification publicly published for the platform Different model entirely — an AI-matched marketplace of independently vetted freelancers, not an offshore delivery team. 7216 relevance depends on where the assigned expert is located. Varies by freelancer; not a centralized delivery facility

Datamatics Business Solutions (DatamaticsCPA)

Datamatics is one of the few providers in this space that treats security documentation as part of onboarding rather than something a firm has to chase down after signing. The certification stack is the broadest of the group, and the consent process is handled proactively rather than left for the firm to sort out on its own. 

USPs: 

  • Holds AICPA SOC 1 Type II, SOC 2 Type II, and ISO/IEC 27001:2022 certifications, more layered coverage than most competitors in this list 
  • Builds the Section 7216 consent process into standard onboarding, so firms aren’t left drafting their own workflow from scratch 
  • Works directly in Drake, Lacerte, UltraTax CS, and CCH Axcess, avoiding the file-conversion risk that comes with reformatting client data between systems 
  • Runs a structured pilot before any full-volume engagement begins, giving firms a chance to verify controls before client data moves at scale 

Entigrity

The appeal here is continuity. Rather than rotating staff across a pooled team, Entigrity assigns a dedicated offshore professional to a firm’s work specifically. 

USPs: 

  • Uses a staff augmentation model, so the same individual works your firm’s files consistently rather than rotating between clients 
  • Consistent staffing makes access logs and internal audits easier to trace back to one person 
  • Maintains SOC 2 and ISO 27001 security credentials 
  • Best suited to firms that want long-term continuity over a pooled-team structure 

QX Accounting Solutions (QXAS)

QXAS covers a wide service range under one roof, which appeals to firms that want tax, bookkeeping, and payroll handled by a single provider rather than three separate vendor relationships. 

USPs: 

  • Operates delivery centres in both India and Mexico 
  • Spans tax preparation, bookkeeping, and payroll under one provider 
  • Worth asking directly which specific centre handles your firm’s files, since a multi-country footprint means certification confirms the standard, not the exact physical location of a given client’s data 

Analytix Solutions

The US headquarters is the differentiator here, giving firms a domestic contact for anything urgent rather than relying entirely on offshore hours. 

USPs: 

  • Pairs a US headquarters with offshore delivery teams 
  • Gives firms a domestic point of contact for security escalation, useful if something needs a fast answer outside normal offshore business hours 
  • Runs SOC 2-aligned controls on the delivery side 
  • Built its client base largely through referrals, worth asking about directly in reference calls 

Paro

Paro takes a different approach to the security question entirely: rather than managing offshore data transfer risk, it removes the offshore variable altogether by matching firms with vetted, US-based finance and accounting professionals. 

USPs: 

  • Markets U.S.-based tax and accounting talent, which can reduce offshore disclosure and cross-border workflow concerns 
  • Removes offshore data residency and cross-border transfer questions from the security conversation entirely 
  • Vets professionals individually rather than running a large offshore delivery centre, which suits firms wanting a single named specialist rather than a team structure 
  • Best suited to firms with clients in regulated industries, government-adjacent work, or states where client sensitivity around offshore data handling creates real friction, even when the offshore provider is properly certified 

None of these are the flashiest names on a search results page. What actually separates them from the rest of the market is simpler than a features list: they’ll produce the certificate, the consent workflow, and the data residency answer the moment you ask, without a delay that makes you wonder what they’re checking with legal first.  

What data security means under IRS rules?

IRS Section 7216 makes it a federal misdemeanor for a tax preparer to disclose client tax information without consent. Violations carry fines up to $1,000 and up to a year in prison, rising to $100,000 in cases tied to identity theft. The civil version, Section 6713, adds a $250 penalty per violation, capped at $10,000 a year.  

The IRS has permitted offshore tax preparation since 2006, provided the taxpayer gives written consent, so secure offshore tax preparation services aren’t operating in some legal grey area. They’re explicitly allowed, as long as the paperwork and the safeguards behind it are real. 

The IRS also requires every tax professional to maintain a Written Information Security Plan as part of its Security Summit initiative. Any outsourced tax preparation services for accounting firms you’re evaluating should be able to describe how their own practices line up with what your firm’s WISP already requires, not just wave at a general compliance claim. 

What certifications a provider should actually hold?

Ask for two things by name: SOC 2 Type II and ISO 27001:2022. SOC 2 Type II confirms a provider’s security controls were tested over a sustained period, typically six to twelve months, rather than checked once and forgotten. ISO 27001:2022 certifies a documented information security management system covering physical access, staff vetting, and incident response. 

Get the actual certificate and its issue date. A provider genuinely serious about data security in offshore tax preparation will hand this over without making you ask twice, along with a signed data processing agreement and a straight answer about where client data physically lives. 

Is it safe to outsource tax preparation to an offshore team?

Yes, provided the provider is operating the way the law actually allows. What tends to go wrong isn’t the offshore piece. It’s a firm skipping the Section 7216 consent, or trusting a provider’s word instead of asking for the certificate. 

Three things need to be true at once for IRS-compliant tax preparation outsourcing to hold up: written client consent under Section 7216, a provider with current and verifiable certifications, and your firm’s own review layer before anything reaches a client or the IRS. Firms that end up in the breach headlines are almost always missing one of those three, not all of them. 

Here’s the section with a short lead-in before the bullets for each provider, and a slightly heavier hand on Datamatics without tipping into an obvious sales pitch. 

Conclusion

A provider’s security posture isn’t a line item you can take on faith. It’s the difference between an arrangement that’s genuinely defensible and one that’s quietly exposing your firm to liability every time a file moves. The providers worth your time treat Section 7216 consent, current certification, and honest answers about data residency as standard practice, not as awkward questions they’d rather sidestep. 

Datamatics Business Solutions holds AICPA SOC 1 Type II, SOC 2 Type II, and ISO/IEC 27001:2022 certifications across its tax and accounting outsourcing work for US CPA firms. If you’d like to see the documentation directly and talk through how the Section 7216 consent process would work for your clients, talk to our team and start your tax prep season before the rest of the competition. 

Established providers hold current SOC 2 Type II or ISO 27001 certification. Always verify the actual certificate and issue date rather than relying on a website claim.

SOC 2 Type II and ISO 27001:2022 are the standard. SOC 2 Type II confirms controls were tested over 6 to 12 months; ISO 27001 certifies a documented information security management system. Ask for current, dated documentation directly.

Yes, when the provider holds current certifications and your firm obtains proper client consent under IRS Section 7216. The IRS has permitted offshore preparation since 2006 with written taxpayer consent. Risk comes from skipping these safeguards, not from the offshore location itself.

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Harsh has over 10 years of experience working with CA/CPAs and accounting firms in the UK & USA, helping them to streamline their F&A processes & achieve back-office operational excellence while staying focused on client advisory & strategic aspects of their business.

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