You need a better intranet. Maybe the current one is unworkable, or maybe you're starting from scratch. Either way, leadership wants an answer to the same question: should you build a custom intranet or buy an existing platform?
According to Oxford University research, one in six IT projects exceeds its original budget by more than 200%. The stakes are real, and the wrong choice costs more than money. It costs time, morale, and credibility with your executive team.
In this guide, we'll walk through a structured framework for making the decision. You'll get some perspective on true costs, realistic timelines, honest scenarios where building makes sense, and how the rise of AI in the workplace has shifted the equation. No vendor spin. Just practical guidance you can bring to your next stakeholder meeting.
What does it really cost to build vs buy an intranet?
Building a custom intranet typically costs three to five times more than buying a purpose-built platform over a three- to five-year period, once you account for development, maintenance, security, and opportunity costs.
Most organizations start the conversation by comparing an in-house developer's salary to a platform subscription fee. That comparison misses the bigger picture. Here's what each path actually looks like when you add up all the costs.
The cost of building:
- Development: A small team of three to five engineers, each earning $120,000 to $180,000 per year. (The U.S. Bureau of Labor Statistics reports a median software developer salary of $133,080, with the top 25% earning $169,000 or more.) That's $360,000 to $900,000 annually before you publish a single page.
- Infrastructure: Cloud hosting, databases, content delivery networks (CDNs), and DevOps overhead. Budget $50,000 to $150,000 per year depending on scale.
- Security and compliance: Annual security audits, penetration testing, and compliance certifications add up fast. A SOC 2 audit alone can cost $20,000 to $150,000 depending on company size and complexity, according to A-LIGN, a leading SOC 2 issuer. Add the Health Insurance Portability and Accountability Act (HIPAA) and the General Data Protection Regulation (GDPR) compliance programs on top of that, and annual security and compliance costs for a custom intranet run $50,000 to $200,000 per year.
- Ongoing maintenance: Industry benchmarks consistently place annual maintenance at 15% to 25% of your original build cost. Bug fixes, browser updates, mobile compatibility, and operating system patches never stop.
- Feature iteration: Your first version won't be your final version. Every new feature request goes through your internal team, competing with other IT priorities.
The cost of buying:
- Subscription: Annual licensing based on employee count. Predictable, budgetable, and inclusive of updates.
- Implementation and migration: Typically a one-time cost, often supported by the vendor's team.
- Training: Onboarding for admins and content owners, usually included or minimal.
- Customization: Configuration within the platform (branding, page layouts, permissions) rather than development from scratch.
The costs most teams miss:
One of the biggest costs of building is the opportunity cost. Every month your IT team spends building and maintaining an intranet is a month they are not working on strategic initiatives that drive revenue. And every month without a functioning intranet is a month of lost productivity, missed communications, and employees who can't find the information they need.
Delayed deployment carries its own price tag. If it takes your team 12 months to build what a platform delivers in four weeks, that's 11 months of the problems you were trying to solve going unaddressed.
For most mid-sized to large organizations, the math is clear: buying delivers predictable costs and faster value, while building creates compounding expenses that grow with every passing quarter.
How long does each path take to deliver value?
Purpose-built intranet platforms typically go live in two to eight weeks. Custom builds average six to 18 months before a first usable version reaches your employees.
But "live" means different things depending on the path you choose.
When you buy a platform, "live" means your team has a fully functional intranet with search, publishing, communications, analytics, and integrations on day one. You spend the implementation period on content migration, branding, and configuration, not on writing code. A platform like Haystack, for example, handles infrastructure, security, and compliance out of the box, so your team can focus on the work that actually matters: creating content and organizing knowledge.
When you build, "live" usually means a minimum viable product (MVP) with basic features. Search may be limited. Mobile support may be incomplete. Analytics may not exist yet. Your team still has months of iteration ahead before the intranet reaches the experience level your employees expect.
That gap matters more in 2026 than it did five years ago. Employees use consumer-grade apps every day. They expect the same level of polish, speed, and intuitiveness from their workplace tools. Whether your team is in the office, remote, or hybrid, choosing the best intranet for remote teams matters more than ever. Asking them to wait 12 to 18 months for a basic internal platform, then telling them it will "get better over time," is a hard sell.
Every month of delay is also a month of compounding problems. Knowledge stays scattered across drives, channels, and email threads. New hires take longer to onboard. Urgent announcements go unseen. The cost of waiting isn't hypothetical.
When Riviera Utilities, a public utility serving one of the fastest-growing counties in the United States, chose to buy rather than build, they achieved 100% employee adoption within a single week of launch. Their communications lead, a department of one with no coding background, managed the entire rollout using Haystack's no-code setup and onboarding roadmaps. That kind of speed simply isn't possible with a custom build. (Read Riviera Utilities' rapid deployment experience.)
When does building your own intranet actually make sense?
Building makes sense when your organization has highly specialized compliance requirements, a dedicated engineering team with intranet expertise, and workflows so unique that no platform can accommodate them.
There are legitimate scenarios where building is the right call:
- Regulated industries with compliance needs no vendor meets. If you operate under regulatory frameworks that no commercial platform currently supports, and you've verified this through thorough evaluation rather than assumption, building gives you full control over compliance.
- A dedicated product team that treats the intranet as a core product. Building works when you have engineers, designers, and a product owner focused exclusively on the intranet, not a side project squeezed between higher-priority IT tickets.
- Truly unique workflows that can't be addressed through configuration or APIs. Some organizations have processes so specific to their industry or operations that no platform can accommodate them, even with extensive customization.
- The intranet itself generates revenue or is mission-critical to operations. If the intranet is a product, not an internal hub, the investment calculus changes.
But here's an important dose of reality. Most organizations overestimate how unique their needs are. The features that feel custom to your team, like Single Sign-On (SSO), Human Resource Information System (HRIS) integration, branded experiences, and granular permissions, are standard in modern intranet platforms. (See the full list of key features of modern intranet platforms.) "We need SSO and Workday integration" isn't a reason to build. It's a checkbox on a platform evaluation form.
Red flags that a custom build will struggle:
- The project is assigned to existing IT staff as a side project, not a dedicated team
- There is no full-time product owner with authority to make design and prioritization decisions
- Leadership expects the first version to be "good enough" and plans to iterate later with no additional budget
- The maintenance plan is vague or nonexistent
If any of those sound familiar, the build path will likely deliver a frustrating experience for everyone involved, from the team building it to the employees expected to use it.
The hybrid approach: buy the core, build around it
Most organizations get the best results by buying a proven intranet platform for the core experience, then extending it through integrations and APIs for workflows specific to their business.
"Buy the core, build around it" means you let a purpose-built platform handle the things every organization needs: publishing, search, communications, analytics, and compliance. Then you connect it to your existing tools and build custom workflows where your business truly requires them.
This works because it gives you enterprise-grade security, compliance, and a polished employee experience from day one, while preserving flexibility for the things that make your organization different.
Here's what "building around" looks like in practice:
- Connecting a custom HR workflow via API. Your benefits enrollment process is unique to your organization. Instead of rebuilding it inside the intranet, you connect it through the platform's API so employees access it directly from their digital HQ.
- Embedding a proprietary analytics dashboard. Your operations team has a custom reporting tool. Embed it within the intranet so it lives alongside company news, policies, and knowledge resources.
- Integrating a specialized compliance tool. Your industry requires a specific compliance management platform. Rather than duplicating that functionality, integrate it so employees find everything in one place.
Haystack is built for exactly this model. With 50+ pre-built enterprise integrations and open APIs, your team can extend the platform to match your workflows without maintaining the entire intranet infrastructure in-house. You invest your engineering effort where it matters most, on the parts of the experience that are genuinely unique to your organization, and let the platform handle everything else.
GoodRx took this approach when building their first-ever intranet. (Read GoodRx's intranet implementation story.) Rather than attempting a custom build across their distributed workforce, they chose Haystack and focused their effort on architecting the content experience using the platform's groups feature. Departmental stakeholders managed their own resources autonomously, and the company hit over 80% adoption shortly after launch. Their Employee Communications Manager called it "the most satisfying initiative to roll out" in her career.
A framework for making your decision
Use five criteria to guide your build vs buy decision: timeline, total cost of ownership, internal expertise, compliance requirements, and employee experience expectations.
Here's a practical framework you can bring to your next planning meeting:
- Timeline: Do you need to be live in weeks, or can you wait 12+ months? * Points toward buying: You need results this quarter. Your employees are struggling today. * Points toward building: You have 18+ months and no urgency. (This is rare.)
- Total cost of ownership (TCO): Have you calculated the full cost over three to five years? * Points toward buying: You want predictable annual costs that include updates, security, and compliance. * Points toward building: You have verified that your internal costs, including maintenance, security, and opportunity costs, will be lower. (Run the numbers honestly.)
- Internal expertise: Do you have a dedicated product team? * Points toward buying: The intranet would be a side project for your IT team. * Points toward building: You have a full-time team of engineers, designers, and a product owner committed to the intranet as their primary product.
- Compliance and security: Do you have truly unique compliance needs? * Points toward buying: SOC 2, HIPAA, GDPR, and California Consumer Privacy Act (CCPA) coverage meets your requirements. * Points toward building: You've confirmed through vendor evaluation that no platform meets your specific regulatory requirements.
- Employee experience: Can your team deliver a platform employees will actually want to use? * Points toward buying: You want consumer-grade design, intuitive navigation, and strong mobile support from day one. * Points toward building: You have dedicated UX designers and the budget for extensive user research and testing.
For most mid-sized to large organizations, the answers to these five questions point clearly toward buying a purpose-built platform. The scenarios that genuinely favor building are narrow and require substantial, sustained investment.
Frequently asked questions
Is it cheaper to build or buy an intranet?
Buying is typically cheaper when you calculate total cost of ownership over three to five years, including development, maintenance, security updates, and the opportunity cost of IT resources.
Custom builds often appear cheaper at the start. A few developers, some cloud infrastructure, and your team is off to the races. But costs escalate quickly. Maintenance alone runs 15% to 20% of your original build cost every year. Add compliance updates, feature requests, and the inevitable "we didn't budget for that" surprises, and most custom builds cost three to five times more than a platform subscription over the same period. Platform pricing is predictable and includes ongoing updates, security, and new features.
How long does it take to deploy an intranet?
Purpose-built intranet platforms deploy in two to eight weeks. Custom-built intranets typically take six to 18 months before a first version is ready for your employees.
Deployment speed depends on the complexity of your content migration, the number of integrations you need, and how much existing content needs restructuring. Modern platforms handle the heavy lifting, including infrastructure, security, compliance, and core features, so your team can focus on content and configuration rather than code.
Choose your intranet path with confidence
For most organizations, buying a purpose-built intranet platform delivers faster time-to-value, lower total cost of ownership, and a better employee experience than building from scratch. The decision is significant, and it's worth evaluating carefully using the framework above. For a deeper dive into your evaluation, download the 2026 Intranet Buyer's Guide.
If you've landed on buying, Haystack is a modern Digital Employee Experience Platform built for exactly this scenario. Your team gets enterprise-grade security and compliance (SOC 2, HIPAA, GDPR, CCPA), 50+ pre-built integrations with the tools you already use, AI-powered search and content management, and a platform you can be live on in weeks, not quarters. Non-technical teams own the experience completely, and IT stays focused on strategic work.
