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Tax Season Scams: How Cybercriminals Target Financial Data

Written by Atlantic Technology Services | Mar 31, 2026 6:36:47 PM

Tax season is busy enough without worrying about cybercriminals — but unfortunately, it’s one of the most active times of year for financial scams. As an MSP, we regularly see attackers increase their efforts between January and April because they know sensitive financial information is being shared, deadlines create urgency and people are more likely to respond quickly without verifying requests.

Understanding how these scams work is the first step toward protecting your business and your personal data.

Why Tax Season Is a Prime Target for Cybercriminals

During tax season, organizations exchange large amounts of confidential information — Social Security numbers, bank account details, payroll records and employee data. That makes businesses especially attractive targets.

Cybercriminals rely on three key factors:

  • urgency (“You must respond immediately”)
  • authority (“This is from your accountant or the IRS”)
  • opportunity (increased document sharing)

Attackers don’t need advanced hacking tools when a convincing email can trick someone into handing over sensitive information.

Common Tax Season Scam Tactics We See

Many tax-related cyberattacks begin with simple social engineering. Here are the most common methods businesses encounter.

IRS Impersonation Emails

Scammers frequently send emails pretending to be from the IRS requesting verification of tax information or payment confirmation. These messages often include:

  • Fake links
  • Malicious attachments
  • Threats of penalties or enforcement action

The IRS WILL NEVER initiate contact through email, text or social media requesting sensitive financial information.

Fake W-2 Requests (Business Email Compromise)

One of the most damaging scams targets HR and accounting staff. Attackers impersonate executives and request copies of employee W-2 forms. Because these requests appear to come from leadership, employees sometimes respond quickly without verifying the request — resulting in large-scale exposure of employee data.

“Updated Banking Details” From Vendors or Accountants

Another common tactic involves emails that appear to come from:

  • Your CPA
  • Payroll provider
  • Vendor
  • Or financial partner

The attacker requests updated payment information or asks you to resend tax documentation. These messages are designed to redirect payments or capture sensitive files.

Fake Tax Software or Document Links

Attackers may distribute links disguised as tax prep portals, secure document upload pages or updated tax forms. Clicking these links can install malware or lead to credential theft.

How These Scams Impact Businesses

Tax season attacks don’t just affect individuals — they often target entire organizations. If successful, attackers may gain access to:

  • Employee Social Security numbers
  • Payroll records
  • Banking information
  • Login credentials
  • Client financial data

This can lead to identity theft, fraudulent tax filings, compliance exposure and reputational damage.

For businesses in regulated industries like healthcare, manufacturing, architecture/engineering, and financial services, these risks are even more significant due to compliance obligations and reporting requirements.

How to Protect Your Organization During Tax Season

The good news is that most tax-season scams can be prevented with a few proactive steps.

  • Train your team to recognize phishing attempts: Employees should always pause before responding to requests involving financial documents, payroll information, account changes or urgent executive requests. Verification should happen through a second communication method whenever possible (see MFA note below).
  • Use secure document-sharing tools: Avoid sending sensitive tax documents through unsecured email. Instead, use encrypted portals or approved collaboration platforms.
  • Enable multi-factor authentication (MFA): Even if credentials are stolen, MFA adds another layer of protection that can stop attackers from gaining access.
  • Watch for unusual requests from leadership: Executive impersonation scams are extremely common during tax season. Establish a simple internal verification process before sharing sensitive files.
  • Keep systems updated and monitored: Modern cybersecurity protection tools can identify suspicious behavior before damage occurs — but they must be properly configured and actively monitored.

A Strong Cybersecurity Strategy Makes the Difference

Tax season scams are successful because they rely on timing and trust — not technical sophistication. That’s why awareness, preparation, and proactive monitoring matter so much.

As your technology partner, our goal is to help simplify, secure, and strengthen your environment so your team can focus on running your business — not worrying about cyber threats. To make sure your business is prepared for this tax season and future ones, schedule your free cybersecurity assessment with our team.