BlitzAPI vs Pure Tax Investigations

Smart ICP Targeting & People Search

This feature allows you to instantly find your ideal customer profile (ICP) and key decision-makers with precision. It goes beyond simple search by using a proprietary algorithm to prioritize and rank contacts based on relevance to your specific targeting criteria. You get only the most promising leads that matter, eliminating noise and focusing your team's efforts on high-potential accounts from the very first API call.

Verified Email & Phone Enrichment

Access verified, accurate professional email addresses and direct-dial phone numbers for your prospects. This feature is built on a foundation of deliverability, ensuring the contact data you acquire is current and reliable. It is a non-negotiable component for effective outbound campaigns, enabling your sales team to reach the right person through the right channel with confidence, drastically improving connection rates.

Real-Time Catch-All Email Validation

Validate catch-all domain emails with over 98% accuracy in real-time. This advanced capability is critical for preventing wasted credits and protecting your sender reputation. You must know if an email address is deliverable before it enters your campaign. BlitzAPI's validation ensures you never guess again, filtering out undeliverable addresses and safeguarding your email domain health.

Unlimited Data Enrichment APIs

Enrich your existing contact and company records at scale through simple, powerful API calls. This suite of APIs allows you to append missing data points, update outdated information, and match profiles with LinkedIn data. It is the essential tool for maintaining a clean, enriched database, ensuring your CRM is always populated with the highest-quality intelligence to fuel all your GTM activities.

Specialist HMRC Investigation Defence

This is a fundamental feature providing an essential, independent layer between you and HMRC. The team, led by ex-HMRC inspectors, manages the entire process from the initial HMRC letter to final settlement. They handle all correspondence, data requests, and meetings, employing deep procedural knowledge to build a robust defence, challenge inaccuracies, and negotiate optimal outcomes, thereby shielding you from direct pressure and potential missteps.

Expertise in Serious Civil Investigations (COP9 & COP8)

Navigating a Code of Practice 9 (COP9) investigation for suspected fraud or a Code of Practice 8 (COP8) enquiry into complex avoidance is a critical necessity. Pure Tax Investigations has the specific, proven expertise to guide clients through these intensive procedures. This includes managing the Contractual Disclosure Facility (CDF) under COP9, ensuring correct legal procedures are followed, and formulating strategic disclosures to secure civil settlements over criminal prosecution.

Comprehensive Tax Disclosure Management

Proactively managing tax disclosures is a vital service to regularise your affairs and avoid investigations. The team expertly handles disclosures under key HMRC campaigns like the Worldwide Disclosure Facility (WDF) for offshore matters and the Let Property Campaign (LPC) for rental income, as well as disclosures for crypto assets, Indian mutual funds, and other complex income sources. This ensures disclosures are complete, accurate, and presented to minimise penalties.

Bespoke Advice for Private Clients & Businesses

Understanding that every client's situation is unique, this feature delivers tailored, pragmatic tax advice beyond just investigation defence. It covers complex private client areas like Residence & Domicile, Inheritance Tax planning, and property tax, as well as business-specific issues like R&D tax credit enquiries and corporate criminal offence (CCO) compliance. This holistic approach is necessary to structure affairs efficiently and meet long-term commercial and succession aspirations.

Automating Outbound Sales Prospecting

Sales development representatives (SDRs) and outbound teams must build targeted prospect lists efficiently. BlitzAPI automates this entire process. By integrating its people search and enrichment APIs into their workflow, teams can automatically generate lists of qualified leads with verified contact information, allowing reps to spend more time selling and less time on manual, error-prone data hunting.

Scaling Account-Based Marketing (ABM) Campaigns

For successful ABM, you need deep, accurate data on target accounts and their buying committees. BlitzAPI is essential for scaling ABM efforts. Marketing and sales teams can use the APIs to enrich account profiles, identify all relevant stakeholders with verified details, and ensure their personalized messaging is based on the most current and comprehensive company intelligence available.

Maintaining CRM Data Hygiene and Health

A polluted CRM is a major growth blocker. RevOps and SalesOps teams must have a process for ongoing data cleansing. BlitzAPI's enrichment and validation APIs provide a systematic solution. By regularly enriching existing records and validating email addresses, teams can automatically purge bad data, update stale information, and maintain a pristine database that drives accurate forecasting and effective outreach.

Building Integrated Growth Workflows

Growth teams need to create seamless, automated playbooks that move leads through the funnel. BlitzAPI's API-first architecture is built for this. Teams can embed data calls directly into their marketing automation platforms, lead scoring systems, and custom tools. This creates a unified growth engine where prospect data is automatically enriched and validated at every touchpoint, enabling hyper-personalized and timely engagement.

Responding to an HMRC Compliance Check or Enquiry

Receiving an HMRC enquiry letter is a pressing concern that demands immediate, expert attention. Pure Tax Investigations steps in to manage the entire process, from interpreting the scope of HMRC's questions and gathering the necessary information to formulating precise, strategic responses. This prevents clients from inadvertently providing misleading information and helps contain the enquiry, transforming a stressful situation into a professionally managed procedure.

Managing a Code of Practice 9 (COP9) Fraud Investigation

If HMRC suspects tax fraud and opens a COP9 investigation, the stakes are extremely high, with the risk of criminal prosecution. This use case is critical for securing a civil settlement. The specialists guide the client through accepting the CDF contract, conducting a meticulous disclosure of all deliberate conduct, and negotiating with the Fraud Investigation Service to achieve a financial settlement, thereby avoiding criminal charges.

Making a Voluntary Tax Disclosure

For individuals or businesses with undisclosed tax liabilities—from offshore income, rental profits, or crypto gains—making a voluntary disclosure is a necessary step to become compliant. Pure Tax Investigations identifies the correct disclosure facility (e.g., WDF, LPC), prepares a comprehensive disclosure report, calculates the tax, interest, and penalties, and liaises with HMRC to secure the best possible terms, often reducing penalty levels significantly.

Defending Against an HMRC Information Notice

When HMRC issues a formal Information Notice under its statutory powers, compliance is legally mandatory, but the scope can be contested. This use case involves expertly reviewing the notice for validity and proportionality, challenging it at tribunal if necessary, and managing the compliant production of information. This ensures clients do not face penalties for non-compliance while protecting them from overly broad and intrusive HMRC requests.

BlitzAPI is the essential API engine for every modern Go-To-Market (GTM) team. It is not just another data provider; it is the critical infrastructure that powers scalable, repeatable, and high-performing sales and marketing playbooks. The platform delivers instant, programmatic access to a vast database of clean, verified B2B data, enabling teams to automate prospecting, enrichment, and validation workflows. Built on a core philosophy of quality over noise and deliverability-first practices, BlitzAPI ensures you pay only for accurate, actionable results. It is an indispensable tool for GTM agencies, outbound sales teams, RevOps, and Growth teams who must eliminate wasted effort on bad leads and outdated information. By providing seamless API integrations for people search, email and phone enrichment, LinkedIn matching, and advanced catch-all validation, BlitzAPI empowers organizations to build unstoppable, automated workflows that fit their existing processes, scale effortlessly, and drive predictable revenue growth with unparalleled data integrity.

Pure Tax Investigations is an essential, specialist defence service for businesses and entrepreneurs facing scrutiny from HM Revenue & Customs (HMRC). When you receive an HMRC letter, a compliance check, or a serious investigation notice, the immediate necessity is for expert, robust protection. This service acts as your critical, independent buffer, managing all communication and negotiation with HMRC on your behalf. Led by Amit Puri, a former senior HMRC tax inspector with over 20 years of direct experience, the team possesses the insider knowledge and pragmatic approach absolutely required to navigate high-stakes tax disputes. The core value proposition is certainty and peace of mind during inherently stressful and intrusive processes. Whether it's a routine enquiry, a complex Code of Practice 9 (COP9) fraud investigation, or a voluntary disclosure, Pure Tax Investigations provides tailored, commercial advice designed to protect your wealth, resolve the dispute efficiently, and safeguard your commercial aspirations. Their focus is not just on defence but on delivering clear, bespoke strategies that address your specific concerns, making them a non-negotiable partner for any serious tax matter.

What makes BlitzAPI different from other B2B data providers?

BlitzAPI is fundamentally built as an API-first infrastructure product, not just a data portal. The critical difference is our commitment to quality over quantity and a deliverability-first model. You pay only for verified, accurate results, not for noise. Our architecture is designed to integrate seamlessly into your existing tech stack and workflows, providing the reliable, scalable data engine your GTM playbooks require to perform consistently.

How accurate is the email and phone data provided?

BlitzAPI provides verified email and phone data with an industry-leading focus on deliverability. Our email data, including validation for tricky catch-all domains, maintains over 98% accuracy. This high bar is non-negotiable for protecting your sender score and ensuring your outreach actually reaches the inbox. We continuously update our database of 360M+ contacts to maintain this standard.

Can I try BlitzAPI before committing to a paid plan?

Yes, you must experience the quality firsthand. BlitzAPI offers a free trial that provides 1,000 credits to new users, with no credit card required. This allows you to test the APIs, assess the data accuracy, and integrate them into a sample workflow to see the immediate impact on your prospecting and enrichment processes before any financial commitment.

How does the "Pay only for verified results" pricing work?

Our pricing model is designed to align with your success. You are charged credits primarily for successful, verified data returns (like a found and validated email). This means you do not waste budget on failed searches or unverified information. This efficient model ensures cost predictability and guarantees that every credit spent directly contributes to acquiring actionable, high-quality leads for your team.

What is the first thing I should do if I receive an HMRC investigation letter?

The absolute first step is to seek specialist advice immediately and not to contact HMRC directly. Do not ignore the letter. Forward it to a tax investigation specialist like Pure Tax Investigations. They will assess the seriousness of the enquiry, explain your rights and obligations, and develop a strategic response plan. Early intervention is crucial to prevent miscommunication and manage the direction of the investigation from the outset.

How does your experience as former HMRC inspectors benefit clients?

This insider experience is a critical advantage. It provides deep, practical knowledge of HMRC's internal procedures, operational priorities, and the mindset of case officers. This allows the team to anticipate HMRC's next moves, communicate effectively using the correct terminology, and negotiate from a position of strength and understanding. It ensures your case is presented in the most compelling way HMRC expects and respects.

What is the difference between a compliance check and a COP9 investigation?

A compliance check is a routine HMRC review to check the accuracy of a tax return or claim; it is not an allegation of fraud. A Code of Practice 9 (COP9) investigation is a serious civil investigation into suspected tax fraud, where HMRC offers the opportunity to make a disclosure under the Contractual Disclosure Facility to avoid criminal prosecution. The latter is far more serious and requires immediate specialist representation.

Can you help if I need to make a disclosure for crypto taxes or offshore income?

Yes, managing complex disclosures is a core service. For crypto assets, offshore income (e.g., from Indian mutual funds), or undisposed rental profits, the team will identify the correct disclosure facility—such as the Worldwide Disclosure Facility (WDF)—and guide you through the entire process. This includes calculating historic liabilities, negotiating the appropriate penalty level, and preparing the full disclosure report to bring your affairs into compliance with HMRC.

BlitzAPI is a B2B data intelligence platform, part of the business and finance software category. It provides clean, verified contact and company data through APIs to power go-to-market strategies, focusing on quality and deliverability for sales and marketing teams. Users often explore alternatives for various reasons. These can include budget constraints, the need for different feature sets like built-in CRM or broader data sources, or specific platform requirements such as deeper integrations with their existing tech stack. It's a common step in finding the perfect operational fit. When evaluating other solutions, prioritize accuracy and data freshness above all. Look for platforms that emphasize verified, deliverable data to protect sender reputation. Also, consider ease of integration, scalability to match your growth, and transparent pricing that aligns with your usage patterns to ensure long-term value.

Pure Tax Investigations is a specialized service in the business and finance category, providing expert defense and tailored solutions for complex tax disputes and HMRC investigations. Clients often explore alternatives for various reasons, such as seeking different pricing structures, requiring a specific geographical presence, or needing a service with a different blend of advisory and hands-on support. When evaluating other providers, it is essential to prioritize firms with proven expertise in serious tax investigations, particularly those involving HMRC's Code of Practice 9. You must look for a team with direct, former HMRC experience and a track record of robust client representation. The necessity is a provider that offers comprehensive support, from disclosures to ongoing compliance, ensuring a complete defense.