Managed IT for CPA & Accounting Firms in Orange County & Los Angeles
Tax-season uptime, IRS Publication 4557 compliance, WISP documentation, and QuickBooks/Lacerte/UltraTax support built for California CPAs.
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For a California CPA firm, downtime between January 15 and April 15 isn't an inconvenience — it's revenue that never comes back. Our accounting practice is built around one principle: nothing critical is allowed to fail during tax season, and the environment is documented well enough to satisfy an IRS Written Information Security Plan requirement.
We support firms across Tustin, Irvine, Glendale, and Pasadena — solo EAs to 40-preparer firms — and the pattern is identical: a mix of desktop tax software (Lacerte, UltraTax, ProSeries, Drake), QuickBooks Desktop and Online, secure client portals, and a wall of confidential financial data that must never leak.
IRS Publication 4557 — WISP mandate
Every paid preparer with a PTIN must maintain a Written Information Security Plan. IRS-CI enforcement has increased. We produce and maintain the WISP for you, mapped to your actual controls.
Wire-fraud and W-2 phishing spikes
January through April is peak season for CEO-impersonation and vendor-impersonation attacks. We layer DMARC, banner tagging, and mailbox-rule alerting to catch the attack before the wire goes.
Tax software that hates change
Lacerte and UltraTax updates weekly during season, and one bad Windows update can knock out billing. We test-image every patch before it hits your workstations.
Compliance
Compliance frameworks we align CPA clients to
The IRS, FTC, and California expect a documented, tested, monitored security program — not a folder of PDFs. We keep the paperwork current and the controls provable.
IRS Publication 4557 (WISP)
Written Information Security Plan documented, staff-trained annually, and revised whenever your environment changes.
FTC Safeguards Rule (16 CFR Part 314)
Applies to tax preparers as financial institutions — MFA, encryption in transit and at rest, incident response, vendor oversight.
IRS Publication 1345
e-file provider security requirements — TIN protection, monitoring, and reporting suspicious activity within 24 hours.
CCPA & California AB-2273
Consumer records handling and breach-notification obligations.
What we deliver
The cpa & accounting firms IT stack, end to end
- Tax software supportLacerte, UltraTax CS, ProSeries, Drake, ATX — installations, network builds, and season-readiness testing.
- QuickBooks & bookkeepingQuickBooks Desktop Enterprise (multi-user hosting), QuickBooks Online, Xero, and Sage 50 environments hardened and backed up.
- Secure client portalsSmartVault, TaxDome, Canopy, ShareFile, or Suralink — deployed with SSO and MFA baked in.
- Encrypted emailMicrosoft Purview, Mimecast, or Virtru so 8879 delivery and PII handoffs meet safeguards standards.
- MFA on everythingEntra ID conditional access, hardware keys for admin accounts, and phishing-resistant MFA for staff — required by Safeguards.
- Immutable backup + 4-hour RTORansomware-resilient backup with tested restore. Tax data is one of the highest-value targets for extortion, and we treat it that way.
Real-world outcome
Case in point: an Irvine tax practice, March 12
A 15-preparer Irvine firm called at 6:20 AM: two workstations were showing ransomware notes. By 6:35 we had every endpoint isolated. By 9:00 the affected users were working from clean laptops on a segmented VLAN. By noon the environment was fully restored from immutable backup and forensics were preserved for the carrier. Not a single 1040 was delayed. Their WISP was updated within two weeks and the incident response was documented — the client stayed on track for a clean IRS renewal.
They kept our season alive when it could have been catastrophic. We didn't lose a return.
— Managing shareholder, Irvine CPA firm
FAQ
CPA & Accounting Firms IT — questions we get
Do you write and maintain our IRS WISP?
Yes. We produce the Written Information Security Plan required by IRS Pub 4557, keep it aligned with your actual controls, and update it whenever your environment materially changes. Staff acknowledgment tracking is included.
Can you host QuickBooks Desktop for multi-user access?
Yes — either through Intuit's authorized hosting partners or on our own Azure-backed environment with proper SQL configuration, backup, and license compliance.
How do you handle Lacerte and UltraTax updates during season?
We stage updates in a test image first, verify they don't break your macros or e-file components, and only roll them into production once verified. Rollback plans are prepared for every release.
What's your plan if we're hit with ransomware in March?
Isolation within 30 minutes, critical systems back up from immutable backup within 1–4 hours, and every affected user on a clean workstation within a business day. We've done this during peak season and clients did not miss client deadlines.
Do you support remote seasonal preparers?
Yes. We provision hardened laptops, conditional-access-gated VPN, and time-boxed access so seasonal staff get exactly what they need for the window they need it — then it's revoked.
Can you help us prepare for the FTC Safeguards Rule?
Yes. Risk assessment, MFA rollout, encryption verification, incident response plan, employee training, and the annual written report — we own the full program.
Services most cpa & accounting firms clients start with
Bring industry-grade IT to your cpa & accounting firms practice
Tell us about your environment. A Southern California engineer responds within one business hour — no sales pitch.
- No obligations, no onboarding fees
- 24/7 emergency line for active issues