How much does it cost to build a custom CRM in 2026?
A custom CRM covering the features most SMBs actually use — contact records, deal pipeline, activity logging, email integration, reporting, and a mobile view — typically costs £35,000–£55,000 to build in total. Shared across a founding cohort of five firms, each pays £7,000–£11,000 upfront. Annual running cost is ~£3,000 flat. For a 20-user team on a £30/seat/month CRM, break-even is inside two years; for a £60+/seat CRM, year one.
What scope is included in a custom CRM build?
Contact records, deal pipeline, activity log, email integration, reporting.
Standard CRM scope: contact and company records, deal pipeline with stages, activity log (calls, emails, meetings), task reminders, basic email integration, CSV import/export, team reporting, and a mobile view. Advanced scope (cost increases): territory management, complex forecasting, full email marketing, CPQ quoting, or deep ERP integration.
When should you NOT replace your CRM?
If the CRM drives your full marketing stack with 20+ integrations, custom replacement risk outweighs savings.
If you use HubSpot's full suite — CRM + Marketing Hub + Service Hub + sequences + ad integration — that is an integrated platform, not a simple CRM. If your CRM syncs simultaneously with your ERP, finance system, and customer portal, the integration cost of rebuilding rivals the SaaS licence. In those cases, we say so in discovery rather than take a build that does not deliver clean value.
Related questions
Yes. Gmail and Outlook sync via standard OAuth APIs is standard CRM scope. Emails are stored on your own database, not a third-party mail service.
Sources
- Rollout IT CRM build estimates (2025, based on 50+ projects delivered)
- Retool 2026: ~35% of organisations have replaced a SaaS with custom software
See what your SaaS spend looks like with a flat annual fee.
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