Self-hosting and SaaS are two different bets on cost, control and who carries the maintenance. Self-hosting pays off when ownership and long-run economics matter enough to you to run the plumbing. SaaS wins when you want speed and none of the operational weight.
Short answer
Self-hosting means you run open-source software on infrastructure you control: you own the data and code, pay no per-user licence fee, and carry the maintenance. SaaS means a vendor runs everything for a recurring subscription: less control, less effort. Self-hosting pays off at scale, with sensitive data, or when a per-seat bill grows faster than the cost of running the servers.
I am Manoj. I lead ERPNext and open-source deployments at MithTech, a team of Frappe specialists in Bengaluru, and most weeks I help organisations decide where their systems should live. I have seen both choices go right and go wrong. Honest take: most teams overestimate how hard self-hosting is, and underestimate how quickly a per-user SaaS bill stops feeling small.
What is the real difference between self-hosting and SaaS?
Self-hosting runs open-source software on servers you control (a cloud VM, a private cloud or your own hardware), with the source code, data and configuration in your hands. SaaS delivers the same kind of software as a subscription: the vendor owns the servers, the upgrades and the uptime, and you own an account.
The line that matters is responsibility. With SaaS, the vendor keeps the lights on and you accept their roadmap and terms. With self-hosting, that responsibility moves to you or whoever runs the servers for you, and that is what buys you control.
| Licence model | Open source (e.g. GPL-3.0), no licence fee | Per-user or per-tier subscription |
| Who runs the servers | You, or a hosting team you hire | The vendor |
| Data and code ownership | Yours outright | Vendor-held; you hold an account |
| Customisation depth | Full source access | Limited to the vendor's settings |
| Maintenance | On you or your hosting team | On the vendor |
| Exit / lock-in | Portable; low lock-in | Migration effort; vendor-defined export |
Skimmable summary: self-hosting moves both control and responsibility to you; SaaS keeps both with the vendor.
How do the two cost models compare?
The shape of the cost separates them more than any headline figure. SaaS is an operating expense that grows with users, tiers and add-ons: predictable each month, compounding as you grow. Self-hosting front-loads implementation, then pays for infrastructure and support. With open-source software there is no per-seat licence, so the cost curve flattens as headcount rises.
For a fair comparison, model three years of total cost of ownership rather than one line item. Take the SaaS vendor's current prices from its own page (editions and tiers change), then map your own growth against them.
The self-hosting cost comparator runs that model on your own figures. It starts empty, so every number is yours. It shows three totals, a verdict that can say stay on SaaS, and where the answer flips.
- SaaS grows with you. Every new user, module or premium feature is another recurring line. That is fine early and expensive later.
- Self-hosting front-loads effort. You pay for setup and hosting once, then for running and support, separate from headcount.
- Open source removes the licence. With ERPNext the software has no licence fee; you pay for implementation, hosting and support. To see what moves an implementation's cost, estimate your price.
- Both sides have hidden costs. SaaS has overage and add-on creep; self-hosting has ops time and on-call.
For the India-specific picture, see the open-source ERP guide for Indian businesses.
Who owns your data, and does India's DPDP Act change the answer?
With self-hosting, the database sits on infrastructure you control and you decide the region, the backups and the access. With SaaS, your records live in the vendor's environment under their terms, and how easily you can leave depends on the export paths they offer.
India's rules make this concrete. The Digital Personal Data Protection (DPDP) Act, 2023, with its Rules notified in November 2025, allows personal data to be transferred abroad by default and restricts it only for countries the government notifies later. Most obligations under the Rules apply 18 months after notification, from May 2027. Sector regulators can be stricter today: the Reserve Bank of India already requires payment-system data to be stored in India.
What maintenance does self-hosting really demand?
Maintenance is the real cost of ownership, and pretending it is zero is how self-hosting projects fail. Running open-source software yourself means owning security patches, version upgrades, backups, monitoring and disaster recovery. None of it is exotic, but all of it is continuous, and it is the work a SaaS subscription absorbs for you.
The checklist we give teams weighing whether to run it themselves:
Patching and upgrades
Security fixes and version updates arrive regularly. Someone must test and apply them without breaking customisations, on a schedule, not after something breaks.
Backups and disaster recovery
Automated backups with a defined recovery point and recovery time, and a restore you have actually tested.
Monitoring and uptime
Alerts on resource limits, failed jobs and downtime. This is the on-call duty SaaS carries for you.
Security hardening
Firewall rules, access controls, encryption and audit trails, which India's data-protection regime increasingly expects.
Capacity and scaling
Watching growth and resizing before performance degrades, rather than after users complain.
The infrastructure you choose decides how heavy this is. Our comparison of Hetzner vs AWS for ERPNext walks through the trade-offs, and a managed hosting service can take most of the checklist above off your hands while the stack stays yours.
When does owning your stack pay off?
When the value of control and long-run economics outweighs the weight of operations. Scale, sensitive data, deep customisation and a long time horizon push toward self-hosting. Small teams, thin IT capacity and a need to move this quarter push toward SaaS. Most organisations sit in between, which is why the managed middle exists.
Self-hosting fits when
You are adding headcount fast, handle regulated or sensitive data, need deep customisation, or want out of a subscription that grows every year. Ownership and portability matter to you.
SaaS fits when
You want to launch this quarter, have little IT capacity, run a small stable team, and prefer a predictable monthly cost with no infrastructure to run.
Managed open source fits when
You want the ownership and economics of self-hosting without the on-call rota: someone else runs the infrastructure while the code and data stay yours.
For many of the programmes we run, the answer is the third box: open-source software like ERPNext, self-hostable with no licence fee under GPL-3.0, run on managed infrastructure, so you get ownership without becoming an infrastructure company. The Open Source Definition is the test of what counts as open source.
Frequently asked questions
+Is self-hosting always cheaper than SaaS?
No. Self-hosting removes per-user licence fees when the software is open source, but adds infrastructure and maintenance cost. It usually wins over several years and at larger headcounts, where a compounding subscription overtakes the up-front work. For a small, stable team, SaaS can be cheaper and simpler.
+Does self-hosting mean I lose vendor support?
Not with open source done properly. "Open source" describes the licence, not the support model. You can still buy implementation, hosting and an SLA from a provider; the difference is that you are not tied to one vendor, and your data and customisations stay with you if you switch.
+Can I move from SaaS to self-hosting later?
Often, but the effort depends on how portable your SaaS data is. Vendors define their own export paths, so a migration ranges from simple to painful. That is why teams that expect to grow into ownership sometimes start on an open-source stack from day one.
+How does India's DPDP Act affect the decision?
It turns data location from an IT preference into a compliance question. The Act allows cross-border transfer by default, with restrictions to come through a government-notified list, while sector rules like the RBI's already require payment-system data to stay in India. Self-hosting gives you direct control over residency; confirm your own obligations with a qualified advisor.
+Is ERPNext free if I self-host it?
ERPNext has no licence fee: it is open source under GPL-3.0, and the Frappe Framework it runs on is MIT-licensed. Self-hosting it means you pay for infrastructure and, if you want it, support, but never a per-user software licence. Managed hosting is optional and priced by the provider.
+What is the safest starting point for an SMB unsure which to pick?
Managed hosting of open-source software. You get the ownership, portability and licence-free economics of self-hosting, while someone else carries patching, backups and monitoring. If your needs stay small you have lost little; if you grow, you are already on a stack that does not charge you per seat.
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Manoj · Published on 20 July 2026
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