Pure Tax Investigations vs ZenCall
Side-by-side comparison to help you choose the right product.

Pure Tax Investigations
When HMRC calls, we guide your business through the storm to secure peace of mind.
Last updated: March 1, 2026
ZenCall
Experience crystal-clear international calls directly from your browser with ZenCall's simple pay-as-you-go pricing.
Last updated: February 27, 2026
Visual Comparison
Pure Tax Investigations

ZenCall

Feature Comparison
Pure Tax Investigations
Frontline Expertise from a Former HMRC Inspector
Our team is led by Amit Puri, who spent over 20 years as a senior Tax Inspector at HMRC. This insider perspective is invaluable. We understand the tactics, priorities, and operational approaches of HMRC from the other side of the table. This allows us to anticipate challenges, craft compelling defences, and negotiate from a position of strength, ensuring our clients have a formidable advocate who speaks HMRC's language.
Bespoke, Client-Centric Strategy
We reject a one-size-fits-all approach. Your tax affairs and the investigation you face are unique. Our process starts with listening. We delve into your specific circumstances, concerns, and goals. From this understanding, we build a discreet, clear, and completely bespoke strategy designed to achieve the best commercial outcome while managing stress and providing certainty every step of the way.
Comprehensive Investigation & Disclosure Management
We provide end-to-end support across the entire spectrum of HMRC engagement. This includes managing serious civil fraud investigations (COP9), complex avoidance enquiries (COP8), compliance checks into large businesses, and facilitating voluntary disclosures through campaigns like the Worldwide Disclosure Facility (WDF) and Let Property Campaign (LPC). We handle the process so you can focus on your business.
Proactive Peace of Mind & Certainty
We recognise the profound pressure and intrusion a tax investigation brings. Our role extends beyond technical advice to being a steadying hand. We work tirelessly to demystify the process, provide clear timelines, and offer straightforward advice. Our goal is to lift the burden from your shoulders, providing the peace of mind that comes from having a dedicated, expert team in your corner.
ZenCall
Browser-Based Convenience
No downloads, no hassle. ZenCall operates entirely within your browser, allowing you to make international calls with just a few clicks. This feature ensures that you can connect with anyone, anywhere, without the need to install additional software or apps.
Transparent Pricing Model
With ZenCall, you only pay for the minutes you use. This straightforward pricing structure eliminates hidden fees and long-term contracts, making it easy for individuals and businesses to manage their communication costs efficiently.
High-Quality Calls
ZenCall is designed to deliver crystal-clear audio quality, ensuring that your conversations are smooth and professional. Whether you are catching up with family or discussing business strategies, you can rely on ZenCall for stability and clarity in every call.
Flexible Usage Options
Whether you need to make occasional calls or require a more extensive calling solution for your team, ZenCall provides flexible options. Users can purchase credits that never expire, allowing for spontaneous or planned calls without the pressure of a looming subscription deadline.
Use Cases
Pure Tax Investigations
Navigating a Code of Practice 9 (COP9) Investigation
You have received a COP9 letter, indicating HMRC suspects serious tax fraud. This is a critical juncture. We guide you through the Contractual Disclosure Facility (CDF) process, helping you make a valid disclosure to avoid criminal prosecution. We manage all communication with HMRC's Fraud Investigation Service, building a robust defence to settle your affairs and secure your future.
Responding to an HMRC Compliance Check or Enquiry
HMRC has opened a routine enquiry into your company's tax return or a specific deduction, like R&D claims. The requests for information are piling up, distracting you from your business. We step in as your authorised agent, handling all correspondence, gathering the necessary evidence, and professionally challenging any unreasonable demands to bring the enquiry to a swift and fair conclusion.
Making a Voluntary Disclosure via a Campaign
You have undisclosed income from offshore assets, rental properties, or cryptocurrency gains. We help you voluntarily regularise your affairs through HMRC's disclosure facilities, such as the Worldwide Disclosure Facility (WDF) or Let Property Campaign (LPC). We prepare and submit a complete disclosure, negotiating the best possible terms to minimise penalties and interest, turning a problem into a resolved matter.
Defending Against Complex COP8 or Avoidance Scheme Enquiries
Your business or trust has used a tax planning arrangement now under scrutiny by HMRC's Counter Avoidance directorate under COP8. These are highly complex, technical investigations. Our specialists analyse the scheme, the relevant law, and HMRC's position to mount a rigorous defence, protecting your financial position through negotiation, Alternative Dispute Resolution (ADR), or at Tribunal if necessary.
ZenCall
Connecting with Family Abroad
ZenCall is the perfect solution for families who want to keep in touch with relatives living far away. With no app downloads required, family members can easily make calls from their computers, ensuring that they never miss important moments or updates.
Supporting Remote Teams
For remote teams spread across different countries, ZenCall offers a reliable communication tool that fosters collaboration. Team members can hold meetings and discussions seamlessly, enhancing productivity without the barriers of traditional calling methods.
Customer Support for Global Clients
Businesses with international clients can leverage ZenCall to provide customer support that feels personal and accessible. The platform's competitive pricing allows companies to offer high-quality support without incurring excessive costs.
Emergency Calls While Traveling
Travelers can use ZenCall to stay connected with friends and family back home during their journeys. With the ability to make calls from any location with an internet connection, users can reach out in case of emergencies or for assistance, providing peace of mind.
Overview
About Pure Tax Investigations
Imagine receiving a letter from HMRC. The official envelope feels heavy in your hands, its contents threatening to unravel years of hard work. This is where the journey with Pure Tax Investigations begins. We are not just advisors; we are your dedicated navigators through the stormy seas of tax disputes and investigations. Founded by Amit Puri, a former senior HMRC Tax Inspector with over two decades of experience, we specialise in acting as an independent, robust buffer between our clients and HMRC. Our mission is to provide peace of mind and clarity to businesses, entrepreneurs, and private clients facing everything from routine compliance checks to the most serious civil investigations under COP8 and COP9. We listen first, understanding that every client's story is unique, and then we fight tooth and nail with a tailored, pragmatic approach. Our core ethos is to preserve wealth, address deep-seated concerns, and help realise our clients' aspirations by turning a period of uncertainty into a journey toward resolution and security.
About ZenCall
ZenCall is an innovative browser-based international calling platform that revolutionizes the way individuals and teams communicate across borders. Imagine being able to connect with loved ones, business partners, or clients anywhere in the world, all from the comfort of your laptop or desktop. With ZenCall, you can make high-quality voice calls to mobile phones and landlines without the need for apps, SIM cards, or subscriptions. This makes it an incredibly convenient solution for busy professionals, remote workers, and families who want to stay connected regardless of geographical barriers. The platform operates on a transparent, per-minute pricing model, ensuring that users only pay for what they use. This flexibility is perfect for those who require reliable global calling without being tied down by long-term contracts. Calls are initiated within seconds, with optimized clarity and stability, allowing you to communicate effortlessly. ZenCall is not just about making calls; it's about creating a seamless and stress-free communication experience that prioritizes user control and simplicity.
Frequently Asked Questions
Pure Tax Investigations FAQ
What makes Pure Tax Investigations different from my accountant?
While your accountant is vital for compliance, a tax investigation is a specialist adversarial process. We are dedicated tax defence specialists with frontline HMRC experience. We act as an independent buffer, focusing solely on investigation strategy, negotiation, and dispute resolution. We fight for you with a level of niche expertise and tactical understanding that general practice accountants typically do not possess.
How do you handle communication with HMRC during an investigation?
We become your authorised agent, meaning all direct communication from HMRC comes to us. We manage every letter, email, and phone call. This shields you from the stress and potential missteps of direct contact. We ensure all responses are strategic, consistent, and professionally crafted to protect your interests and steer the investigation toward a favourable resolution.
What is the typical outcome of a tax investigation you handle?
Our goal is always the optimal commercial outcome for your specific case. This can range from a successful "no change" conclusion where HMRC closes the enquiry, to negotiating a financial settlement that is significantly lower than HMRC's initial calculations. We also aim to secure certainty, finality, and the peace of mind that comes from having your affairs settled correctly and conclusively.
Do you only handle cases for large businesses?
Absolutely not. Our services are vital for entrepreneurs, private clients, SMEs, and large corporations alike. Tax investigations are deeply personal and stressful regardless of business size. We provide the same dedicated, senior-level expertise and bespoke approach to all our clients, whether facing a personal capital gains enquiry or a multi-million pound corporate tax dispute.
ZenCall FAQ
How do I get started with ZenCall?
Getting started with ZenCall is easy. Simply visit the ZenCall website, create an account, and you can begin making calls immediately. No credit card is required for the initial sign-up, and free credits are included.
Are there any hidden fees with ZenCall?
No, ZenCall prides itself on its transparent pricing model. You only pay for the minutes you use, and there are no hidden fees or long-term contracts involved.
Can I use ZenCall from any device?
ZenCall is designed to work on any device that supports a web browser, including laptops and desktops. This flexibility allows you to make calls without being tied to a specific device or needing to download additional applications.
What happens if I run out of credits?
If you run out of credits while using ZenCall, you can easily purchase additional credits at any time. The credits you buy never expire, allowing you to manage your calling needs without pressure.
Alternatives
Pure Tax Investigations Alternatives
When a business faces the daunting prospect of an HMRC investigation, finding the right specialist support is a critical journey. Pure Tax Investigations operates in this high-stakes niche, offering expert navigation through complex tax disputes to protect client interests and provide peace of mind. It's a service built on deep, insider experience for those who need a formidable advocate. Businesses often explore alternatives for various reasons. They may be seeking a different fee structure, require a service with a specific regional focus, or simply wish to compare the expertise and approach of different firms before making such an important decision. The need for the right fit is paramount when dealing with sensitive financial matters. When evaluating other options, look for a proven track record in tax dispute resolution, clear transparency in their process, and, crucially, direct experience with HMRC's investigation frameworks. The ideal partner should not only offer robust defense but also provide a sense of clarity and control throughout what can be a stressful process.
ZenCall Alternatives
ZenCall is a browser-based international calling platform that enables users to make high-quality voice calls to mobile phones and landlines around the globe without the need for apps, subscriptions, or SIM cards. This innovative service appeals to individuals, remote workers, and small teams seeking a straightforward and cost-effective way to connect with others internationally. While ZenCall offers transparent pay-as-you-go pricing, users may find themselves exploring alternatives for various reasons, such as specific feature requirements, pricing structures, or platform compatibility. When searching for an alternative, it's essential to consider the calling quality, the ease of use, and whether the service aligns with your calling habits and needs. The right choice will ensure seamless communication, whether for personal or professional purposes.