From the first week of January through the April deadline, your systems can't blink. MJN delivers security-first managed IT that keeps accounting firms fast, compliant, and protected — with client financial data locked down and our US-based team monitoring everything around the clock.
Whether you want to supplement in-house staff or fully outsource your technology, we tailor a plan around your filing deadlines, your software, and your duty to protect sensitive financial data.
A Written Information Security Plan built to IRS Publication 4557 and FTC Safeguards Rule requirements — documented, maintained, and audit-ready.
Encryption, Zero-Trust access, and data-loss prevention to guard SSNs, returns, and financial records against breaches and identity theft.
Proactive maintenance and monitoring that keep your firm running through your busiest, highest-stakes weeks — when downtime is not an option.
Microsoft 365 hardening and advanced email security to stop phishing and business-email-compromise attacks targeting client funds.
Monitored, verified offsite backups so returns and working papers are recoverable in minutes — even during peak filing season.
Let staff and seasonal preparers work securely from anywhere with Zero-Trust VPNs and cloud-hosted desktops.
A dedicated in-house team that knows your systems and answers fast — because a frozen workstation on April 14th is an emergency.
Accounting firms are a top target for cybercriminals — you store Social Security numbers, bank details, and complete financial pictures for hundreds of clients. A single breach means regulatory exposure, lost client trust, and a busy season derailed at the worst possible moment. The IRS now requires every firm with a PTIN to maintain a written data security plan, and cyber-insurance carriers expect real controls behind it.
At MJN Technology Services, we make that protection practical. We build a dependable, secure foundation that satisfies your compliance obligations while keeping your team productive through deadline crunches. Our services scale with your firm, so your technology supports growth instead of getting in the way.
Accounting firms run on a calendar most IT providers don't understand — quarterly estimates, extensions, year-end close, and a tax season where every hour counts. MJN specializes in managed IT for Long Island CPA and accounting practices, keeping your systems fast and secure when the pressure is highest.
Our expertise covers the compliance frameworks and tax and accounting software your firm depends on every day. We manage your technology proactively — protecting client financial data, keeping you aligned with IRS and FTC requirements, and giving you one accountable partner instead of a patchwork of vendors. The MJN stack gives you the insight and guidance to make informed decisions and get real return on your technology investment.