The advertised price of a SaaS subscription is not the full cost. Annual price increases, paid add-ons, integration middleware, admin time, and switching costs add 20 to 40 percent to the headline subscription price. A CRM that looks like 40 per seat per month often costs 55 to 65 per seat when all the hidden costs are included. For a UK SME with 50 users across multiple SaaS tools, the hidden costs can add 15,000 to 30,000 per year on top of the subscription total.
We help UK businesses understand the true cost of their SaaS stack and identify where custom software can reduce it. The first step is knowing what you are actually paying.
How Much Do SaaS Prices Increase Over Time?
SaaS prices are not fixed. Gartner research on SaaS pricing trends consistently shows annual price increases of 5 to 10 percent. Some increases are gradual, year-on-year. Others come as step changes when a vendor changes pricing tiers, acquires another company, or rebrands the platform.
Example: A CRM at 50 per seat per month. With 7 percent annual increases:
- Year 1: 50 per seat (600 per year per user)
- Year 2: 53.50 per seat
- Year 3: 57.25 per seat
- Year 4: 61.25 per seat
- Year 5: 65.50 per seat (786 per year per user, a 31 percent increase)
For 50 users, the five-year cost is not 150,000 (50 x 50 x 60 months). It is approximately 172,000 with price increases. And this is before any tier changes or larger jumps.
What Are SaaS Add-On Costs?
SaaS platforms advertise a base price. The features you actually need are often charged as add-ons:
- API access: Many platforms restrict API calls or charge for higher limits. Essential if you need integrations.
- Advanced reporting: Basic dashboards are included. Custom reports or data exports often require a premium tier.
- Additional storage: Base storage is limited. Additional storage is charged per GB.
- Single sign-on (SSO): Often only available on enterprise tiers, adding 10 to 20 per seat.
- Premium support: Standard support may mean 48-hour response times. Faster support costs more.
- Sandbox or staging environments: Some platforms charge for non-production environments.
A platform advertised at 30 per seat can realistically cost 45 to 55 per seat with the add-ons most UK SMEs need. Always ask what is included versus what is extra before committing.
What Does SaaS Admin Time Really Cost?
Managing multiple SaaS tools consumes real staff time. For each tool, someone needs to:
- Provision and deprovision user accounts
- Manage permissions and role changes
- Handle billing and reconcile invoices
- Provide first-line support to users
- Manage integrations and troubleshoot sync failures
- Review security and access periodically
The Office of National Statistics reports the average UK knowledge worker costs approximately 35,000 per year including overheads. If managing 10 SaaS tools takes 10 percent of one person's time, that is 3,500 per year in hidden admin cost. For a dedicated IT manager, the percentage is higher.
What Are SaaS Switching Costs?
Switching cost is the friction a vendor creates to keep you locked in. It includes:
- Data export: Some platforms make it difficult to export your data in a usable format. Proprietary formats, limited export options, or paid export services.
- Lost configurations: Custom workflows, automations, and integrations built in the SaaS platform do not transfer to a new system.
- Retraining: Staff need to learn a new system. This takes time and temporarily reduces productivity.
- Data migration: Moving data to a new system requires mapping, cleaning, and importing. This is real work that takes days or weeks.
- Historical data: Some platforms do not allow export of historical activity logs or communication records. You lose context when you leave.
These switching costs are deliberate. They make it expensive to leave, which is why SaaS vendors can raise prices with confidence. Understanding switching costs before you adopt a SaaS tool helps you choose platforms with good data portability.
How Do Integration Costs Add Up?
Connecting SaaS tools to each other requires either middleware (Zapier, Make, Workato) or custom integration. Both cost money:
- Middleware subscriptions: Zapier pricing starts at about 20 per month for limited tasks and scales to 500 or more per month for high-volume usage. A business with 10 integrations running 50,000 tasks per month can pay 300 to 600 per month.
- Custom integration: Building and maintaining custom integrations costs 5,000 to 15,000 per integration. See our guide on API integration costs.
- Integration failures: When an integration breaks (and they do), someone needs to diagnose and fix it. This is unplanned time and cost.
For a UK SME with 8 SaaS tools, integration costs can add 5,000 to 15,000 per year on top of subscription costs.
What Is the True Cost of SaaS?
Putting it together, a UK SME with 50 users on a CRM at an advertised 50 per seat per month actually pays:
- Subscription: 30,000 per year (with price increases over five years, approximately 34,000)
- Add-ons (API, reporting, SSO): 6,000 to 10,000 per year
- Admin time: 2,000 to 4,000 per year
- Integration tools: 2,000 to 5,000 per year
- Total true cost: 40,000 to 53,000 per year
The advertised price was 30,000 per year. The true cost is 40,000 to 53,000 per year, a 33 to 77 percent premium. Over five years with price increases, the total is 220,000 to 280,000.
Custom software at a 60,000 build cost with 10,000 annual maintenance totals 130,000 over five years, with no price increases, no add-on costs, and no per-seat scaling. The comparison is clear at this user count.
Use our SaaS ROI calculator to calculate your true SaaS cost, and see our guide on custom software vs SaaS TCO for the full comparison. Ready to discuss replacing your SaaS stack? Book a free discovery call.