Updated: 30 September 2026
Every few years, the network refresh arrives on the CFO's desk as a large, lumpy capital request. The reflex is to approve it, capitalise it, and depreciate it over the years that follow. That's how networks have always been paid for.
There's now a second option: don't buy the network, subscribe to it. Network as a Service turns that capital outlay into a recurring operating expense, and with it shifts who carries the lifecycle, the support and the obsolescence risk. Which raises a question that's financial before it's technical, and therefore yours.
This guide frames the decision the way a CFO needs to see it: cash, tax, total cost and risk. Not which is trendier, but which fits your business.
NaaS is the network delivered as a subscription. Instead of buying switches, routers, licences and support and running them yourself, you pay a recurring fee for the network infrastructure as a managed service, with the hardware, software, security, support and lifecycle management bundled into one operating expense (Cisco: what is NaaS).
The provider, Cisco or a partner, typically owns and manages the equipment. You consume the network rather than owning it, and the provider handles the refresh when the hardware ages. Cisco delivers this through offerings under its Cisco+ umbrella, its Meraki cloud-managed subscriptions, and partner-delivered managed services.
The shift is less about technology than about the financial model underneath it.
One is ownership; the other is access. A CapEx refresh means buying the assets, capitalising them, depreciating them, and carrying the responsibility for support, upgrades and eventual replacement. NaaS means subscribing, expensing the fee, and handing the lifecycle to the provider.
| CapEx Refresh | NaaS | |
|---|---|---|
| Payment | Large upfront, plus support renewals | Recurring subscription |
| Ownership | You own the assets | Provider owns; you consume |
| Accounting | Capitalised, depreciated | Operating expense |
| Tax (India) | Deducted over years via depreciation | Generally deductible in-year as a service |
| Lifecycle and refresh | You carry it, including EOL planning | Provider handles the refresh |
| Support | Separate SmartNet renewals | Bundled into the subscription |
| Scaling | Buy more when needed | Scale up or down per the agreement |
| Obsolescence risk | Yours | The provider's |
| Suits | Stable, long-hold, capital available | OpEx preference, growth, managed-service appetite |
Both are legitimate. The right one depends on your finances and your appetite for managing the network's life.
Four, and they're the reasons finance teams increasingly look at it. The first is the CapEx-to-OpEx conversion: no large upfront outlay, which frees capital for the business and improves cash flow. The second is predictability, a steady subscription is far easier to budget than the lumpy, occasionally unanticipated cost of buying and maintaining infrastructure.
The third is tax timing. In many jurisdictions, operating expenses are fully deductible in the year they're incurred, whereas capital spending is deducted gradually through depreciation, so the tax benefit of NaaS arrives sooner. The fourth is risk transfer: the provider carries the obsolescence and refresh risk, and the subscription forces a natural technology check-in every few years, which prevents the dangerous habit of sweating assets past the point where they become security liabilities.
For a CFO managing cash, predictability and risk, those are substantial, and they explain the model's growth.
Not automatically, which surprises people. The instinct is that a subscription must cost more over time than owning. But over a normal refresh cycle, roughly five years, the total cost of a network subscription is generally comparable to the old model of buying the hardware and paying for support separately, because you were going to spend on both anyway.
NaaS adds a premium only in specific cases, chiefly if you'd otherwise keep the hardware far longer than a healthy refresh cycle. If your plan is to sweat switches for ten years, buying is cheaper on paper, though that saving comes with mounting security and support risk. Against a disciplined five-year refresh, the economics are close, and NaaS folds in management, support and refresh that you'd otherwise fund and staff separately. Research into consumption-based models points to meaningful gains in reduced downtime, lower operational overhead and overall savings once maintenance, staffing and refresh are all counted (NaaS financial model).
So the honest headline is: NaaS is not the expensive option it's assumed to be, over a normal refresh cadence. It's a different way to pay for a similar total, with the risk and management shifted.
Three, and a CFO should weigh them squarely. You don't own the assets, which limits control and customisation, and means nothing sits on your balance sheet at the end. You take on vendor dependence, relying on one provider for continuity, upgrades and support, which is a concentration of risk. And you commit contractually, with terms and potential termination costs that reduce flexibility if your needs change sharply.
None of these is disqualifying, but they're real. NaaS trades ownership and independence for predictability and offloaded management. Whether that's a good trade depends on how much you value each.
When the fundamentals favour ownership. If your organisation is financially stable, has the capital available, intends to run the network for a long, predictable life, and values owning and fully controlling its assets, buying can be the cheaper and cleaner choice. Some organisations also prefer the asset on the balance sheet, or operate in a way that makes capital investment straightforward.
CapEx also suits those with the internal team to manage the lifecycle well, the refreshes, the support renewals, the EOL planning, without the scramble that catches organisations who let it drift. If you can run that discipline yourself, you don't need to pay a provider to run it for you.
Two Indian factors sharpen the decision. On tax, operating expenses are generally deductible in the year incurred, while capital purchases are written down through depreciation, so NaaS can bring the deduction forward, and services carry GST as a service rather than goods, which finance teams should model with their advisers. On business pattern, India's fast-growing firms, startups and the GCCs of global companies often prefer OpEx flexibility and rapid scaling over large capital commitments, which tilts them toward subscription models.
None of this makes NaaS universally right in India; it makes the OpEx case a little stronger for growth-oriented organisations, and worth modelling properly rather than assuming.
Model it on your own numbers, not the brochure's. Weigh your cash position and whether freeing capital matters; your growth and certainty, since flexibility is worth more when the future is unclear; your appetite and capacity for managing the network's lifecycle; the true total cost over your real hold period, not a convenient one; and your tax and accounting preferences. Where cash, predictability, scaling and offloaded management matter most, NaaS makes sense. Where capital, control, ownership and a long stable hold dominate, CapEx does.
The mistake is deciding by default, approving the capital request out of habit, or chasing OpEx as a fashion, rather than modelling the two against your actual business.
The most valuable thing here isn't a verdict; it's an honest comparison built on your figures, and a partner who can deliver either model well rather than pushing the one that suits them. Proactive Data Systems, a Cisco Preferred Partner with 35 years of experience and more than 1,500 customers, delivers networks both ways, as a bought-and-supported CapEx refresh or as a managed, subscription-based service, and will model the two against your cash, tax and lifecycle position honestly. If you're weighing NaaS against a CapEx refresh, ask us to build the comparison on your numbers.
Disclaimer: This article is general information, not tax, accounting or financial advice. The treatment of NaaS and capital purchases depends on your jurisdiction and circumstances. Consult your tax and finance advisers before making a decision.
Proactive Enterprise Networking Team
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