The verdict in three sentences
A SaaS builder turns your site into a predictable operating cost with no capex: ideal for testing fast or for a small, stable site. A custom website is an amortised investment (capex) that makes you the owner of the code, the data and the evolution path. The trade-off turns on three variables: page volume, usage horizon and your tolerance for lock-in; past a certain volume, SaaS costs more while offering less control.
Subscription vs capex: two accounting models
In Canada, the choice also has an accounting dimension. SaaS is an operating expense (opex), deductible monthly; custom is a capital asset (capex) amortised, sometimes eligible for digital-adoption grants. 2026 figures, ex-tax (Ontario HST is 13 %).
| Item (2026 ballpark) | SaaS builder | Custom |
|---|---|---|
| Entry cost | USD 800-2,500 (setup) | USD 8,000-30,000 (build) |
| Recurring | USD 15-300/mo by tier | support USD 200-500/mo |
| Accounting treatment | opex | amortised capex |
| Grants available | rarely | digital-adoption programs |
| Code ownership | no | yes |
| Data portability | limited | full |
A "business" SaaS tier at USD 150-300/month quickly rivals a custom support fee, except that support funds real evolutions, not just a right to use.
The 3-year TCO by page volume
Page volume is the real tipping point: SaaS is unbeatable under 10 pages, custom pulls ahead past 25-30 pages.
| 36-month TCO (estimate) | Small site (<10 pages) | Medium (10-30) | Large (>30) |
|---|---|---|---|
| SaaS builder | USD 2,900 | USD 6,500 | USD 13,000 |
| Custom | USD 15,200 | USD 17,000 | USD 19,500 |
| Gap | -12,300 (SaaS wins) | -10,500 (SaaS wins) | -6,500 (SaaS wins, but...) |
On pure cost, SaaS stays ahead, but the "large site" column hides exit cost and scalability limits: past 30 pages, lock-in and lack of control become strategic risks the TCO alone does not capture.
Lock-in vs control matrix
| Criterion | SaaS builder | Custom |
|---|---|---|
| Vendor lock-in | high | none |
| Design control | moderate | full |
| Exit / migration cost | high | low |
| Scalability (traffic, pages) | capped by tier | free |
| Custom GDPR/privacy compliance | limited | full |
| Time-to-market | very fast | medium |
Mini case study
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David is CEO of a B2B services mid-market firm in Toronto, on the exec team. He compares a "business" SaaS builder at USD 220/month (USD 7,920 over 3 years + USD 2,000 setup) with a custom site at USD 18,000 (support USD 350/mo). Over 3 years: SaaS USD 9,920, custom USD 30,600. SaaS wins by USD 20,680. But the site must host 45 pages, a client portal and an SEO blog: the SaaS tier caps out and portability is nil. David picks custom, judging that USD 20,680 over 3 years is the price of ownership, scalability and the end of lock-in, with a grant easing the initial capex.
FAQ
Is a SaaS builder always cheaper than custom?
On raw 3-year cost, often yes, especially under 10 pages. But it does not capture exit cost, lock-in or the scalability limits that weigh on large sites.
How is a website treated in accounting?
SaaS is an operating expense deducted monthly; custom is a capital asset amortised over years, sometimes eligible for digital-adoption grants.
What is SaaS lock-in and why does it cost?
It is dependence on a platform: design, data and features are trapped in its ecosystem. Migrating means rebuilding everything, an exit cost often underestimated.
At what volume does custom become worthwhile?
Generally past 25-30 pages, or as soon as a portal, an integration or strong SEO needs appear. Below that, SaaS stays economically unbeatable.
Can I recover my data when leaving a SaaS?
Partially: text content usually yes, but design, structure and integrations rarely. Check portability before committing to a high tier.
Let's scope your project. Share your page volume, usage horizon and integration needs, and we will price SaaS and custom with the 3-year TCO and available grants. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
