Side by side
| Rentmark | Buildium | |
|---|---|---|
| Entry price | $19.99/mo or $199.90/yr, flat | From $62/mo (Essential) |
| Pricing model | One flat plan, unlimited units | Tiered, scales with portfolio |
| E-signatures | Included, unlimited | $5 per document on Essential |
| Online payment setup | Use your own Stripe / PayPal / Zelle — no setup fee | $99 per bank account on Essential |
| Move-in / move-out inspections | Included, tenant co-fills | Paid add-on on Essential |
| Trust accounting & owner statements | Not offered | Yes |
| Association (HOA) management | Not offered | Yes |
| Open API | Not offered | Yes, on Premium |
| Built for | Landlords who own their units | Management companies and large portfolios |
What Buildium costs
Buildium's published pricing starts at $62/month for Essential, $192/month for Growth and $400/month for Premium, with add-on fees on top: $5 per e-signature document on Essential, $99 per bank account setup for online payments, and a separate monthly cost for property inspections.
Read from their own pricing page on 10 August 2026. Prices change — check theirs before you decide, and tell us if this page has gone stale.
Rentmark, for comparison, is $19.99 a month or $199.90 a year — one plan, every feature, unlimited properties, no per-document or per-account fees. The full pricing page lists exactly what is free and what the subscription turns on.
When Buildium is the better choice
Genuinely, and we would rather you read this before subscribing than after:
- You manage units on behalf of third-party owners and owe them statements
- You need trust accounting to keep client funds properly segregated
- You run homeowner or community associations alongside rentals
- Your portfolio is large enough that per-door economics beat a flat fee, and you need an API
When Rentmark is the better choice
- You own the units you manage, and nobody is asking you for an owner statement
- You have somewhere between one and forty doors
- You want the bill to stay the same the year you buy another property
- You would rather not pay per e-signature, per bank account and per inspection module
What switching actually involves
The part people expect to be painful is free: you can create a Rentmark account and enter every property, unit, tenant and lease you have without paying anything. Nothing is metered at that stage, so you can rebuild your portfolio in full, look at it, and decide afterwards.
The subscription starts when you want Rentmark to do things — generate the monthly rent schedule, issue receipts, chase late payments, open the tenant portal, run inspections and keep the accounts. Export is always available as CSV, in both directions of the decision.