How to design a dependable backup and disaster-recovery strategy for a self-hosted billing system: RPO and RTO, the 3-2-1 principle, off-site copies, and tested restores.
Mario Marin4 min readWhen you run your billing platform yourself, backups and disaster recovery move from someone else's responsibility to yours. For a system that records every invoice, payment, and subscription, that is a responsibility worth taking seriously. A billing database is not something you can simply rebuild from scratch. This article covers how to design a backup and disaster-recovery strategy for a self-hosted billing system that you can actually rely on.
Billing data is both sensitive and irreplaceable. Lose it and you lose the record of who owes what, which subscriptions are active, and what has already been paid. Unlike a cache or a rebuildable index, this data has no upstream source to regenerate it from. That makes a tested backup strategy non-negotiable.
Two numbers anchor any recovery plan:
Agree these with the business before designing the mechanics, because they determine almost every other decision.
A dependable backup approach for a self-hosted billing system usually includes:
A long-standing guideline is to keep three copies of your data, on two different types of media, with one copy off-site. It is simple, durable advice, and it applies just as well to a billing database as to anything else.
A backup you have never restored is an assumption, not a safeguard. Schedule regular restore drills into a clean environment, verify that the data is complete and consistent, and time how long the process takes. This both proves the backup works and validates your RTO.
Disaster recovery goes beyond restoring a file. Document the full sequence: who declares an incident, how the environment is rebuilt, how data is restored, how integrations are reconnected, and how you confirm the system is healthy before resuming billing. Keep this runbook current and accessible even if your primary systems are down.
FluxBilling self-hosts on the Business tier only: €44.95/month with unlimited clients, plus a one-time €500 self-host fee. Lite, Starter, and Professional are managed SaaS. The licence runs on the subscription rather than a perpetual purchase, and the Self-Hosted Edition matches the managed platform — billing, DCIM, IPAM, and provisioning — deployed with a one-line installer on any Linux host. There is no free trial; every plan carries a 14-day money-back guarantee. See how self-hosting works and current pricing.
The self-hosted edition of FluxBilling runs on infrastructure you control, which means you choose how the database is backed up and how recovery works. Because it is the same platform as the managed service, the data model is well understood, so standard database backup and restore practices apply directly. The strategy is yours to design around your own RPO and RTO targets.
Backups and disaster recovery are where self-hosting demands the most discipline, and where that discipline pays off most. Define your objectives, automate your backups, keep copies off-site, and test your restores regularly. Do that, and even a serious failure becomes a recoverable event rather than a crisis.
Running billing yourself? Explore the self-hosted edition of FluxBilling and design recovery on your own terms.
Sell hosting to a consumer in another member state and the place of supply moves to them. The threshold is lower than most providers think, and the platform requirements are specific.
Data centre and cloud services sit in Annex I, which makes qualifying providers essential entities on the strictest tier. Scope tests, the 24-hour clock, and the parts that touch your billing system.
You will not run out of IPv6, which is exactly why its allocation goes undocumented. Meanwhile IPv4 leaks onto dead services. Both are billing problems, not just network ones.