Insights & News
Firewall as a Service Cost for Australian Businesses
- July 3, 2026
Firewall as a Service is priced as a monthly fee rather than a single upfront figure, and that fee bundles the appliance, the security subscription, and ongoing management into one cost. The exact number depends on the size of firewall your business needs, which comes down to your user count, internet speed, and which protections you turn on. For most Australian SMEs the appeal is not that FWaaS is always cheaper than buying, it is that it removes the upfront capital cost and turns firewall protection into a predictable operating expense.


Key facts
- FWaaS is charged monthly and bundles the firewall appliance, the security subscription, and management into one recurring fee.
- The monthly cost scales with appliance size, which is set by user count, internet speed, and the protections enabled.
- FWaaS is an operating expense, unlike an upfront firewall purchase which is a capital cost.
- On the Sophos platform, Firewall Hardware as a Service runs on an initial twelve-month term, then continues month to month.
- Buying outright can be cheaper over a full five-year appliance life if you have the capital and manage the device well; FWaaS trades that for no upfront cost and included management.
How is Firewall as a Service priced?
FWaaS is priced on a monthly subscription that reflects the appliance model and the protection bundle, not a flat rate. A small office running a handful of users on a standard NBN connection needs a smaller appliance than a busy site with fast fibre, heavy encrypted traffic inspection, and multiple internet links for failover. The provider sizes the firewall to your actual traffic, and the monthly fee follows from that. This is why you will rarely see a single headline price advertised: quoting the wrong size either leaves you underprotected or paying for capacity you do not use.
What the fee includes is the part worth checking. On the Sophos Firewall platform we use, the monthly cost covers the XGS appliance, standard shipping, and the Xstream Protection subscription, which is the full security licence rather than a stripped-back tier. Management is on top of the vendor bundle when 4iT delivers it, so firmware, rule changes, monitoring, and tuning are part of what you pay for.
What does the monthly fee actually cover?
A Firewall as a Service fee covers four things that would otherwise be separate purchases: the hardware, the security subscription, delivery, and management. In the traditional model you buy the appliance as a capital item, buy a one or three-year security licence alongside it, pay for shipping and setup, and then either manage it yourself or pay a separate managed-firewall fee. FWaaS folds all of that into one line.
The management piece is the one SMEs most often underestimate. A firewall is not a set-and-forget device. Firmware needs updating, rules drift out of date as staff and systems change, and an appliance running old firmware is a liability rather than a protection. Bundling management into the fee means it actually gets done, rather than being the thing everyone assumes someone else is handling.
Is FWaaS cheaper than buying a firewall?
Over a full appliance life, buying outright can be cheaper if you have the capital and manage the device well, but FWaaS usually wins on cashflow and total cost of ownership once management and refresh are counted. The upfront purchase looks cheaper on a spreadsheet if you only compare the hardware price to the sum of monthly fees. That comparison misses the security licence, the management cost, and the fact that in three to five years you face another capital purchase to replace the appliance.
Here is the honest version. If you have AU$4,000 to AU$8,000 of capital spare for a mid-range appliance plus its licence, you keep it for its full life, and you have solid management already, owning it can edge out the monthly model on raw cost. For most SMEs, that is not the situation. The capital is better used elsewhere, the management is patchy, and the refresh gets deferred past end of life. FWaaS costs a little more in theory and a lot less in the ways that actually bite. (All figures ex GST, and indicative only, since appliance sizing varies.)
Why does the upfront cost matter so much?
The upfront cost matters because it is the single most common reason firewall replacements stall, even when everyone agrees the old appliance needs to go. We see the same pattern across Sydney SMEs: the ageing firewall is flagged, the replacement is agreed in principle, and then the capital quote lands and the project quietly dies on the owner's desk for another year. Meanwhile the old appliance keeps running out-of-date firmware and missing features like a built-in zero trust gateway.
Spreading the cost monthly changes that conversation. There is no capital sign-off to chase, no lump sum competing with other priorities for the same budget, and the decision becomes an operating one rather than a capital one. That is the real value of the pricing model, and it is worth more to most SMEs than shaving a few hundred dollars off the five-year total.
Frequently asked questions
How much does Firewall as a Service cost per month?
It depends on the appliance size, which is set by your user count, internet speed, and the protections you enable, so there is no single flat rate. The right way to get a figure is a short scoping call where the firewall is sized to your actual traffic. The fee bundles hardware, the security subscription, and management.
Is FWaaS a capital or operating expense?
Firewall as a Service is an operating expense, billed monthly, rather than a capital purchase. For most Australian SMEs that makes it simpler to approve, because it does not compete with other capital projects for a lump-sum budget and can be treated as a running cost.
Does the monthly fee include the security licence?
Yes. On the Sophos platform we use, the monthly fee includes the Xstream Protection subscription, so the full security licence is part of the cost rather than a separate purchase or renewal. Management by the provider is included on top when 4iT delivers it.
Will FWaaS cost more than buying over five years?
It can, on raw hardware cost alone, if you have the capital and keep the appliance for its full life. Once you count the security licence, management, and the replacement purchase at end of life, the gap narrows or reverses. FWaaS trades a small theoretical premium for no upfront outlay and an included refresh.
If you want a real monthly number rather than a range, the quickest path is a short call to size the right appliance for your network. Call 4iT on 1800 367 448, or read more about how we deliver Firewall as a Service.


About the author
Brett Muscio is the Director of 4iT Support Pty Ltd, a managed services provider based in Castle Hill, NSW. He works with SME clients across Sydney, Melbourne, and Brisbane on networking and infrastructure, including business firewalls, SD-WAN, secure remote access, and managed Wi-Fi, with on-site support across the Sydney metro area and remote delivery nationally. Connect on LinkedIn.
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