Perimattic

Self-Host vs SaaS Cost Calculator

Compare the total cost of ownership between self-hosted and SaaS solutions. Find your break-even point and make data-driven infrastructure decisions.

  • Free IT Decision Tool
  • 1, 3 or 5-year TCO
  • Break-even month
The TCO Formula
TCO = Direct Costs + Indirect Costs + Hidden Costs
SaaS
  • Per-user subscription
  • Add-ons & API fees
  • Storage overage
Self-hosted
  • Infrastructure & licenses
  • IT admin time
  • Backup, security, setup

Compare total cost of ownership over time, not just the monthly price tag

Calculator

Enter Your Cost Details

Fill in your current or estimated costs for both deployment models

SaaS Costs

The per-seat subscription price charged by the SaaS vendor
Current total user/seat count
Extra modules, premium tiers, or feature packs
API call charges, webhook fees, iPaaS connectors
Fees for exceeding included storage limits

Self-Hosted Costs

VPS, cloud instances, or bare-metal server costs
Any paid licenses for self-hosted software
Initial deployment, data migration, and configuration
Monthly hours spent on maintenance, updates, and troubleshooting
Loaded cost per hour for IT staff or contractor
Backup storage, replication, and disaster recovery
Firewalls, WAF, monitoring, compliance scanning

Growth Projections

Expected annual increase in user/seat count
Expected annual increase in data volume

Time Horizon

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What You Get

A full total-cost-of-ownership comparison

Compare total cost of ownership over time, not just the monthly price tag

Total Cost Over Your Time Horizon

SaaS and self-hosted totals over 1, 3, or 5 years, including one-time setup and migration.

Break-Even Point

The month in which cumulative self-hosted cost drops below cumulative SaaS cost.

Cumulative Cost Chart

Month-by-month cumulative cost for both deployment models, with the break-even month marked.

Annual Cost Comparison

Year-by-year SaaS and self-hosted spend side by side.

Per-User Monthly Cost

What each model costs per user at the end of the period, based on projected user growth.

Growth Impact Analysis

How user and data growth change your monthly SaaS and self-hosted costs.
The TCO Formula

TCO = Direct Costs + Indirect Costs + Hidden Costs

SaaS cost each month is the per-user price times your user count (compounded by your user growth rate), plus add-ons, API costs, and storage overage that grows with your data.

Self-hosted cost each month is infrastructure (which grows at 30% of your data growth rate), licenses spread across the year, IT admin hours at your hourly rate, backup, and security tooling — plus the one-time setup cost in the first month. The break-even month is the first month where cumulative self-hosted cost falls below cumulative SaaS cost.

Choosing which tools to self-host? Try the Open-Source Stack Builder, or see our DevOps and platform engineering services.

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FAQ

Frequently asked questions

Everything you need to know about self-hosted vs SaaS cost analysis
What are the pros and cons of self-hosted vs SaaS?

Self-hosted software gives you full control over data, customization, and long-term costs, but requires IT expertise and infrastructure management. SaaS offers quick setup, automatic updates, and predictable pricing, but can become expensive at scale, limits customization, and creates vendor lock-in. The right choice depends on your team size, technical capacity, compliance requirements, and growth trajectory.

What are the hidden costs of self-hosting?

Hidden self-hosting costs include IT staff time for maintenance and troubleshooting, security patching and compliance auditing, backup and disaster recovery infrastructure, server monitoring tools, SSL certificates and domain management, bandwidth and data transfer fees, hardware refresh cycles, and opportunity cost of IT resources diverted from strategic projects. These can add 30-50% on top of base infrastructure costs.

When is self-hosting cheaper than SaaS?

Self-hosting typically becomes cheaper than SaaS when you have more than 50-100 users, need the software for 3+ years, already have IT infrastructure and staff, require heavy customization, or deal with large data volumes that trigger SaaS overage charges. The break-even point varies by application — use this calculator to find yours based on your specific costs and growth projections.

What is Total Cost of Ownership (TCO)?

Total Cost of Ownership (TCO) is the complete cost of a solution over its entire lifecycle, including direct costs (licenses, subscriptions, infrastructure), indirect costs (IT labor, training, downtime), and hidden costs (migration, integration, compliance). TCO analysis prevents decisions based solely on sticker price and reveals the true long-term financial impact of choosing self-hosted vs SaaS deployment models.

How does ManageStacks simplify self-hosting?

ManageStacks by Perimattic provides managed infrastructure for self-hosted applications, eliminating DevOps overhead while keeping you in control of your data. It handles server provisioning, security updates, automated backups, monitoring, and scaling — so you get the cost benefits and data ownership of self-hosting without needing a dedicated IT team. Think of it as the best of both worlds: SaaS convenience with self-hosted control.

Need Expert Help?

Let ManageStacks Handle Self-Hosting for You

Get the cost benefits of self-hosting without the operational burden.

Or email sales@perimattic.com