The Exact IT Stack We Deployed for a 10-Person Accounting Firm

Recently, a local accounting firm hit 10 employees and their IT infrastructure started showing strain. Their consumer router was dropping active sessions during tax season, staff were sharing client portal logins via an unencrypted spreadsheet, and they had no central way to manage the mix of Windows laptops accessing sensitive financial data. The partners asked us to spec out a complete, secure overhaul that didn't require hiring an internal IT director. Here is the exact, real-world stack we deployed to lock down their operations.

The build addresses three failure points that consistently appear at this headcount: network hardware that can't handle concurrent device load, credential management that breaks down at this hire frequency, and no central device policy. Below is the full breakdown — hardware, software, pricing, and the rationale behind each decision.

The Deployed Stack: Monthly Cost Per User

Network hardware is a one-time investment: a complete UniFi setup for a 10-person office typically runs $800–$1,500 with no ongoing licensing fees.

iDrive Business at $13.99/month (first-year promotional rate, renews at $19.99/month from year two). Bitdefender estimated at $27–$57/device/year depending on tier and promotional pricing. Google Workspace Business Starter ($7/user/month annual) is an alternative to M365 at lower base cost, but does not include MDM — budget an additional $1–$3/user/month for a third-party MDM solution if on Google.

Why 10 Is a Real Threshold (Not Just a Bigger Version of 5)

Most business owners experience the jump from 5 to 10 employees as a people problem — more hiring, more management, more meetings. The IT dimension gets less attention, which is exactly why it catches businesses off guard.

Three things structurally change at this headcount. First, device density. A consumer router rated for "20+ devices" in the marketing materials typically shows degraded performance once 10 or more devices are actively running concurrent sessions — video calls, cloud sync, VoIP — simultaneously. The rating measures connected devices, not active throughput. Real-world degradation starts earlier than most people expect.

Second, credential complexity. At 3 people, a shared spreadsheet of passwords is an annoyance. At 10 people, with an average of 5 or more people leaving or joining each year, it's a credential hygiene problem by definition. Every departure is a potential access issue unless the process to revoke credentials is documented and actually followed — and informal credential management doesn't survive that kind of turnover.

Third, onboarding and offboarding frequency. When someone joins or leaves a 3-person team, the process is personal. When your team is 10 and growing, the informal handoff stops working. Someone forgets to remove a former employee from a shared Google Drive folder. A new hire spends their first week asking for access to eight different systems that no one documented. These aren't edge cases — they're the norm for businesses without a basic identity layer.

For a full stage-by-stage roadmap from founder to 20 employees, the IT roadmap for growing businesses covers each growth phase in detail. This article is for the owner who's in the middle of this transition right now and needs to know what to fix first.

Five Common IT Gaps at This Headcount

Before spec'ing any solution, we ran through this standard audit. All five applied at this firm — and in our experience, this pattern is consistent across businesses at this headcount.

1. Shared Wi-Fi passwords on a consumer router. Everyone who has ever visited your office potentially has your network password. If you can't remember the last time you changed it, or if it's written on a whiteboard, you have no real network separation between your business systems and personal devices. At 10 employees, this also means 10 people who might inadvertently connect a compromised personal device to the same network your business data lives on.

2. Passwords in a spreadsheet, a shared Notes file, or people's memories.

Passkeys are also worth understanding at this stage — for teams using modern SaaS tools, they're the fastest path to phishing-resistant login without adding friction.

3. No central device inventory or mobile device policy. If you can't name every device that has access to your email or business files, you don't have a device policy — you have an assumption. At 10 employees, this typically means a mix of company-issued laptops, personal phones with work email configured, and possibly a few machines from people who joined before you had a standard setup.

4. File storage scattered across personal cloud accounts. When someone leaves and their personal Google Drive or Dropbox has the only copy of a critical document, you have a single point of failure and a potential data ownership dispute. This is common at businesses that grew quickly without a deliberate file storage decision.

5. No backup that anyone has verified actually works. Cloud sync is not a backup. OneDrive and Google Drive sync deletions — if someone accidentally deletes a folder, the deletion propagates within minutes. A real backup takes a point-in-time snapshot that can be restored independently of what the sync service currently contains. Most small businesses at this stage have neither a tested backup nor a recovery plan.

If three or more of these apply, the sections below give you the fix for each, in priority order.

What Network Hardware Does a 10-Person Business Need?

The consumer router at this firm was the most visible failure point — it was dropping active sessions during peak filing periods, and the firm had no network segmentation whatsoever. Clients visiting the office connected to the same Wi-Fi network as the partner workstations handling sensitive financial data.

We deployed the UniFi Cloud Gateway Max to address both problems: VLANs to isolate guest traffic from the internal financial network, and proper QoS to eliminate the bufferbloat that was degrading video calls under filing load. Consumer routers don't give you either — no VLAN support, no centralized device inventory, no logging when an unexpected device joins the network.

Hardware Deployed:

• Gateway: UniFi Cloud Gateway Max ($279)
• Switching: UniFi Managed PoE Switch
• Access Points: 2–3 UniFi Access Points (dependent on square footage)
• Total Estimated Hardware Cost: $800–$1,500 (one-time cost, no ongoing licensing fees)

One note on cost: the hardware is a one-time investment, not a subscription. A $1,200 network that runs reliably for 5+ years costs less than two months of helpdesk tickets for a poorly-performing consumer setup.

How to Manage Passwords for a 10-Person Team

The most immediate risk at this firm was a shared spreadsheet of client portal credentials — QuickBooks Online, state tax portals, IRS e-file systems. Any one of those accounts being compromised through credential stuffing, or a former employee retaining access after departure, would have triggered a reportable incident under their client agreements.

We deployed 1Password Business so the partners could grant and instantly revoke access to client credential vaults without ever exposing the actual passwords to staff. The admin console provides a full audit log of which accounts were accessed and when — and departure offboarding is a single revocation action rather than a manual spreadsheet audit.

1Password Business at $7.99/user/month (annual billing) is what we deployed.

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Note for businesses with exactly 10 users: 1Password also offers a Teams Starter Pack at $19.95/month flat (not per-user) for teams up to 10. At exactly 10 people, that's $2/user/month — significantly less than the Business tier. The tradeoff is fewer admin controls and no SSO integration. If you're not ready to connect a password manager to your identity provider yet, the Starter Pack is a reasonable first step.

Because this firm runs a standard Windows environment, Microsoft 365 Business Premium ($22/user/month) was the obvious platform choice. The MDM inclusion was decisive: rather than paying separately for device management, we used the included Microsoft Intune to enforce disk encryption and screen locks across all 10 laptops on day one. Google Workspace Business Starter ($7/user/month annual) would have required a separate MDM tool at $1–$3/user/month additional, and the per-seat economics don't favor Google in a Windows-dominant shop.

The M365 subscription also unified the firm's file storage into SharePoint and their email into Exchange, replacing the mix of personal Google Drive folders and shared Gmail accounts that had been the previous setup.

Accounting Software: QuickBooks Online

For an accounting firm, the IT infrastructure stack is incomplete without the core business application. This firm was already running QuickBooks Online — it was the QuickBooks portal credentials, along with state tax and IRS e-file logins, that were being shared via the unencrypted spreadsheet described above. Once 1Password was deployed, all of those credentials moved into properly permissioned vaults.

QuickBooks Online Plus ($115/month, company-wide) is the right tier for a 10-person accounting firm. It supports up to five concurrent users with full accounting access, includes class and location tracking for multi-client reporting, and covers the reconciliation and payroll integration requirements typical at this size. One timing note: Intuit raised QuickBooks Online prices 15–25% across all plans effective May 1, 2026. If anyone on your team is still on a legacy or grandfathered rate, the next renewal will reflect the new pricing.

Accounting Core

QuickBooks Online

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Cloud accounting software for small businesses. Bank feeds, payroll integration, multi-user access, and financial reporting in one platform.

Bank feeds and reconciliationPayroll integrationMulti-user access (up to 5 on Plus)

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Devices: Who Owns Them, Who Manages Them

At 10 employees, BYOD-or-nothing stops being a viable approach. Not because personal devices are inherently risky — but because company data on an unmanaged device is an offboarding risk every time someone leaves.

The minimum you need to know right now: which devices have access to your business email, business files, and any internal systems? If you can't answer that in five minutes, you don't have a device inventory.

The next step is basic MDM — the ability to remotely wipe a device if someone leaves without returning it, enforce screen lock and encryption, and push security updates. At the Business Premium tier, Microsoft Intune is already included with your M365 subscription. If you're already paying $22/user/month for Business Premium, you have MDM capability you may not be using.

For Apple-heavy shops — teams where most employees are on Mac and iPhone — Mosyle Fuse is the MDM most Apple-first IT teams reach for. It handles zero-touch deployment, enforced encryption, and compliance reporting.

We're honest with clients that full MDM rollout is a Phase 2 project for most 10-person businesses. The minimum viable step this week: document which devices have access to company data and confirm that all of them have screen lock and disk encryption enabled. If someone leaves tomorrow, can you revoke their access to everything? That's the test.

If you've had recent turnover and aren't sure what access was left open, the IT offboarding guide covers the exact cleanup steps.

Backup, Endpoint Protection, and the Insurance Problem

For an accounting firm handling sensitive client financial data, ransomware is a genuine operational risk. A locked file server during tax season, or a SharePoint library wiped by a compromised account, would disrupt active client work and could trigger regulatory notification obligations. Here is how we layered the protection.

Cloud backup. What needs to be backed up: PCs, your file server or NAS (if you have one), and your M365 email and SharePoint. The last one surprises people — Microsoft's service agreement explicitly states that they are not responsible for data loss caused by user actions, and there is no built-in point-in-time recovery for SharePoint or Exchange. You need a third-party backup tool.

iDrive for Business handles the backup layer. Critically for this client, it covers Microsoft 365 — SharePoint and Exchange are not backed up by default under Microsoft's service agreement, and the firm's client documents and correspondence live entirely in M365. The Business plan is $13.99/month (annual billing, first-year promotional rate) for 500 GB across unlimited users and devices. Standard pricing is $19.99/month from year two onward. The Microsoft 365 Backup add-on is available separately; check the pricing page for current bundle rates.

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Endpoint protection. Handling sensitive client financials means ransomware is a serious operational risk — and this firm's cyber insurance policy required verifiable endpoint protection as a baseline control. We deployed Bitdefender GravityZone Business Security: a single cloud console managing all 10 endpoints, with automated ransomware rollback that restores encrypted files without manual intervention. For 10 devices, current pricing runs approximately $27–$39/device/year (reflecting the typical 30% first-year promotional discount off the ~$38.50 list price). The Small Business Security entry tier covers up to 30 endpoints at approximately $57/device/year list. First-year discounts of 30% are standard — check the Bitdefender deals page before purchasing.

Centralized Management

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Cyber insurance. This firm didn't have a standalone cyber policy, and their E&O carrier was beginning to require evidence of security controls at renewal. Cyber insurance applications at this scale require verifiable MFA, documented backup procedures, and endpoint protection as baseline controls — all of which the deployed stack now provided. A 10-employee policy typically runs under $1,500/year; the controls already in place qualified them for standard rates rather than elevated premiums or declination.

Choosing Between Managed IT Services and Internal Support

For this client, we recommended a hybrid IT model rather than full managed services. Here is the honest framework for making that call.

Full managed IT services — 24/7 monitoring, helpdesk, proactive maintenance — runs $100–$200/seat/month, or $1,000–$2,000/month for a 10-person team. Worth it when: you've had two or more security incidents in the past year, you're in a regulated industry (healthcare, finance, legal), or your team is losing 3–4 hours per week to IT issues.

Part-time IT contractor. The option most businesses at this size overlook. Budget $75–$150/hour; a setup engagement runs 10–20 hours, quarterly check-ins are 2–4 hours. Works well when the software stack is properly configured and someone internal owns day-to-day IT.

Well-configured SaaS + vendor support. Often sufficient at 10 people when IT issues are infrequent and the team is largely self-sufficient — provided someone is accountable for keeping the setup current.

The call at exactly 10 employees: a hybrid approach — quarterly contractor review, a managed security tool, and internal IT ownership — often provides the best value. Full managed services clearly pays for itself around 15–20 employees, when support requests reach a predictable weekly volume.

For the full decision framework, see the when to stop DIY IT guide.

If you're a South Florida business, iFeelTech provides managed IT services sized for 10–50 person teams — schedule a free assessment to see what makes sense for your specific situation.

What to Do This Week vs. Next Quarter

The goal here is a concrete plan you can act on, not another reading list. Here's the priority order:

This accounting firm is now on a stack that supports growth to 20+ employees without a rearchitecture — and the full deployment was completed in two weeks without disrupting active client work. The total first-year cost for the software layer runs approximately $34–$36 per user per month, plus the one-time network hardware investment. At this size, that is not an enterprise budget — it is the baseline cost of handling client financial data responsibly at 10 employees.

If your business is hitting the same thresholds, the resources below cover each layer in depth.

More IT Strategy Guides

Platform & Identity

• Google Workspace vs. Microsoft 365 — Full head-to-head on the platform decision this article frames: pricing, MDM inclusion, admin controls, and which fits Apple-centric vs. Windows-first teams.
• Does Microsoft 365 Need Backup? — Why your M365 subscription doesn't protect your data from accidental deletion, and what third-party backup options actually cover.

Network & Devices

• UniFi Small Office Setup Guide — Complete hardware build, current pricing, and room-by-room setup walkthrough for a 10-person office network.
• New Employee IT Onboarding Checklist — Per-hire checklist covering account provisioning, device enrollment, and access review for every new team member.

Security & Password Management

• 1Password Business Review — In-depth review of the recommended password manager: admin console, vault controls, SSO integration, and deployment notes.
• EDR vs. Antivirus for Small Business — How to evaluate endpoint protection for businesses at this size, and when the step up from basic antivirus is justified.
• CrowdStrike vs. SentinelOne vs. Bitdefender — Side-by-side comparison of the major endpoint platforms, including the GravityZone tier recommended in this guide.

IT Strategy & Planning

• IT Roadmap for Growing Businesses — Stage-by-stage overview from solo founder to 20+ employees; the strategic companion to this checklist.
• QuickBooks Online vs. Desktop: Which Is Right for Your Firm? — If you're still weighing subscription vs. perpetual licensing for your accounting software, this comparison covers the trade-offs at the small-business scale.
• Small Business IT Budget Planning — IT investment framework and total cost modeling for businesses in the 5–25 employee range.

For South Florida Businesses

• Managed IT Services for Miami Teams — iFeelTech provides managed IT sized for 10–50 person teams in South Florida.