The verdict in three sentences
For a 50-person SME in London running 40,000 automated tasks a month, Zapier costs GBP 260 to 690 a month in 2026, against GBP 9 to 35 of server cost for self-hosted n8n in the UK, plus GBP 1,700 to 5,200 of setup and GBP 130 to 350 of monthly maintenance. Over three years, n8n usually comes out 25 to 45% cheaper once volume passes 20,000 tasks. The second argument is UK GDPR: with n8n on a UK host, client and HR data stays in a jurisdiction you control.
Cost comparison at 40,000 tasks a month
Zapier bills per task: every successful action in a Zap counts. n8n bills per execution on its cloud plan, and nothing at all when self-hosted (community edition under the Sustainable Use License, free for internal use). At 40,000 tasks, the gap becomes structural.
| Cost item (2026 estimate) | Zapier (Team or Enterprise plans) | Self-hosted n8n in the UK |
|---|---|---|
| Subscription or monthly server | GBP 260 to 690 | GBP 9 to 35 (4 to 8 GB VPS, London region) |
| Initial setup | GBP 900 to 2,600 (if outsourced) | GBP 1,700 to 5,200 |
| Maintenance and monitoring | Included on the platform side | GBP 130 to 350 per month |
| 12-month cost | GBP 4,000 to 10,900 | GBP 3,400 to 9,800 |
| 36-month cost | GBP 10,300 to 27,400 | GBP 6,700 to 19,000 |
| Extra cost if volume doubles | Next tier, x1.5 to x2 | One server size up, +GBP 9 to 25 a month |
| Native integrations | 7,000+ | 400+, plus HTTP requests and code |
In year one the gap is small because n8n setup is heavier. The advantage grows afterwards, especially as volume rises: in n8n, a loop processing 500 rows is still a single execution.
UK GDPR and hosting: what really changes
Zapier is a US company processing data mainly in the United States. The UK extension to the EU-US Data Privacy Framework makes these transfers lawful, but many DPOs at professional services firms and regulated SMEs prefer that HR, health or commercially sensitive data does not leave the UK.
| Data protection criterion | Zapier | Self-hosted n8n in the UK |
|---|---|---|
| Processing location | Mainly United States | UK (London or Manchester data centres) |
| Sub-processors | List provided by the vendor | Your host only, under your control |
| Execution logs | Stored by the vendor | On your server, configurable retention |
| Record of processing | Contract clauses and UK data bridge | Internal processing, easier to document |
| Sensitive data (health, HR) | Avoid or tightly control | Possible with encryption and access control |
| Portability | Manual Zap export | Workflows as JSON, versioned in Git |
Self-hosting brings responsibility: security updates, backups, monitoring. That is what the GBP 130 to 350 of monthly maintenance covers, including fixing workflows when a third-party API changes.
When to keep Zapier
Zapier remains the right choice below 10,000 tasks a month, when automations are simple and built by business teams themselves, or when nobody can look after a server. A hybrid approach also works: high-volume and sensitive flows (ERP sync, invoice processing, HR) move to n8n, small marketing automations stay on Zapier.
Mini case study
Emily, finance and operations manager at a 50-person engineering consultancy in Shoreditch (illustrative persona), pays GBP 530 a month for 40,000 Zapier tasks: syncing quotes between CRM and accounting, extracting supplier invoices, client reminders, contractor onboarding.
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Over 36 months, Zapier costs 530 × 36 = GBP 19,080. Migration to n8n is quoted at GBP 3,900, with a GBP 22 server and GBP 215 a month of maintenance: 3,900 + 792 + 7,740 = GBP 12,432. Saving: GBP 6,648 over three years, about 35%, with supplier and HR data hosted in London.
FAQ
Is n8n really free?
The self-hosted community edition is free for internal use. The real costs are the server (GBP 9 to 35 a month) and maintenance time, estimated at 2 to 5 hours a month.
How long does a migration from Zapier take?
For 20 to 40 Zaps, allow 3 to 6 weeks, including a parallel run to check results before switching Zapier off.
Do we need an in-house developer?
Not if maintenance is outsourced. n8n does allow JavaScript inside workflows, which helps for complex cases.
Where should n8n be hosted for UK GDPR?
With a provider offering UK data centres, on an encrypted server with daily backups. Budget GBP 2 to 4 a month for backup storage.
What if the server goes down?
Monitoring with alerts within 5 minutes and automatic retry of failed executions limit the impact. Critical workflows can be made redundant.
Let's scope your project. Send us your list of automations and your current Zapier invoice, and we will price the migration, the three-year cost and the switchover plan. 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.
