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Learn more →Rentalize VS Buildium
Rentalize vs Buildium
Is Buildium too US-centric for small to mid Irish letting agencies? Buildium is a mature, well-regarded platform built for American property management companies, and for that market it is a strong product. The friction in Ireland is not quality, it is jurisdiction: the accounting, the tenancy model, the screening and the compliance calendar are all built around US practice. Rentalize is built the other way round, starting from the Residential Tenancies Act and the PSRA rulebook.
VERDICT
Which one is right for you?
Rentalize wins for...
Choose Rentalize if you let property in Ireland or the UK and you want RTB registration, the rent cap, HAP, SI 199 client money and Making Tax Digital handled as standard rather than worked around.
Buildium wins for...
Choose Buildium if your portfolio is in the United States, where its accounting, screening and workflows are designed to operate.
SIDE BY SIDE
Feature-by-feature comparison
| Capability | Rentalize | Buildium |
|---|---|---|
| Primary market | Ireland and the UK | United States |
| RTB registration and rent review | Built in, with the notice and the same-day RTB copy | Not supported |
| Rent cap in force from 1 March 2026 | Calculated from published CPI data | Not supported |
| Client money under SI 199 (Ireland) | Built in with reconciliation and audit-ready records | US trust accounting model |
| UK Renters Rights Act and PRS Database | Built in | Not supported |
| Making Tax Digital | Quarterly summaries built in | Not applicable |
| US property management workflows | Not our market | Mature and well proven |
| Rent collection | Open banking and SEPA direct debit, bank to bank | US payment rails (ACH, card) |
| Entry pricing | Core from EUR 199 a month | Essential from about 62 US dollars a month, up to 150 units |
| Social and affordable housing schemes | HAP, Cost Rental, Part V, AHB and local authority workflows | US affordable housing model |
FAQ
Common questions
For most Irish agencies, yes, and the reason is structural rather than a criticism of the product. Buildium is built around US accounting, US tenant screening and US tenancy law. In Ireland you would still register tenancies with the RTB yourself, calculate the rent cap yourself, run client money to SI 199 outside the system and handle HAP manually. That is a lot of process to carry alongside a subscription.
No. Neither is supported, because neither exists in the market Buildium was designed for. Both are built into Rentalize, including the rent review notice and the RTB copy that must be filed the same day under the rules in force from 1 March 2026.
At the entry tier the headline number is lower, from around 62 US dollars a month for up to 150 units against EUR 199 for Rentalize Core Essential. Compare the total honestly though: if Buildium leaves you doing RTB registration, rent cap calculation, client money and HAP outside the system, the saving is a subscription line, not an operating cost.
For a US portfolio, most things relevant to that market. It has a long track record, deep US accounting, an established partner ecosystem and a large support organisation. If you manage property in the United States we would genuinely point you there rather than at us.
Yes. Properties, tenancies, contacts, documents and balances migrate, and migration runs as a scoped programme with defined milestones rather than an open-ended project.
Ready to switch to Rentalize?
Book a 30-minute demo on your own portfolio data. We will show you how Rentalize handles the workflows you currently run on Buildium.