Buildium Integration
Payments & AccountingWhat It Does
Buildium is a cloud-based property management and accounting platform designed for owner-operators running portfolios that range from a handful of units to several thousand. It covers the full operational cycle: leasing and tenant screening, rent collection and ACH processing, maintenance request tracking, owner and tenant portals, and a full general-ledger accounting engine with bank reconciliation and 1099 generation.
Why Real Estate Professionals Use It
Owner-operators and smaller sponsors who run mixed portfolios often carry the operational weight that institutional shops delegate to large PM firms. Buildium was built for exactly that profile: the GP who owns 200 units across six properties, collects rents from both residential and NNN commercial tenants, and needs clean per-property P&Ls every month for partners and lenders.
AI Solutions for Payments
Ebook
CTO's Guide to AI Implementation
Security, compliance, and vendor evaluation frameworks for AI operations
Solution
AI Transaction Coordinator
Automate document collection, deadline tracking, and stakeholder updates
Solution
Commission & Pipeline Tracker
Real-time dashboard showing deal progress and expected commissions
Key Features for Real Estate
Discover how Buildium powers real estate automation workflows
1 of 8
Feature
Property-Level Accounting and General Ledger
Full double-entry accounting engine tracking income, expenses, and equity per property. Bank reconciliation, journal entries, Chart of Accounts customization, and 1099-generation for owner distributions.
Real Estate Impact
Produces property-level P&Ls and NOI statements you can share with lenders, partners, or a CPA without reformatting. For commercial operators, the ledger captures NNN expense reimbursements, CAM charges, and tenant improvement amortization alongside base rent.
See how we automate Buildium
Get a personalized plan for your tech stack
Automation Workflows
Ready-to-deploy workflows powered by Buildium + NextAutomation
Workflow 1 of 4
Intermediate
Automated Monthly Owner Statement with AI Variance Commentary
On the first of each month, pull the prior month's ledger from Buildium for each property, compute NOI vs. prior period and vs. underwriting, generate an AI-written variance narrative that calls out delinquency and maintenance cost spikes, and email the polished statement to each owner or equity partner.
Trigger: Scheduled monthly trigger (first of month) or manual trigger from owner portal
Workflow Steps
1n8n scheduled trigger fires on the 1st of each month
2Query Buildium API: pull transactions, payment records, and work-order costs for each property for the prior calendar month
3Calculate property-level NOI, gross rent collected, delinquency rate, and maintenance spend vs. prior month
4Pass summary data to AI (Claude/OpenAI) to generate a 200-word variance commentary: what drove the change, which units are behind, and what maintenance work affected the bottom line
+3 more steps
Owner statements go out automatically on the 1st with a clear narrative explanation — no manual accounting sprint. Owners receive a professionally packaged monthly report without the PM team assembling it by hand. Delinquency and cost surprises are surfaced before owners notice them independently.
Triggers & Actions
Connect Buildium to your workflows with powerful triggers and actions
Triggers
Payment Received
Fires when a tenant payment clears in Buildium — ACH, online payment, or manually recorded receipt.
When rent arrives for a unit, update the owner's real-time cashflow dashboard and trigger a receipt confirmation to the tenant.
Lease Created
Fires when a new lease is created or a renewal lease is countersigned in Buildium.
On new lease creation, trigger tenant welcome email sequence, utility-setup instructions, and move-in checklist delivery.
Lease Expiring (Scheduled)
Poll Buildium leases by expiration date to surface upcoming renewals 90, 60, or 30 days out.
Launch a three-touchpoint renewal campaign automatically when a lease hits the 90-day-to-expiry window.
Work Order Created
Fires when a new maintenance request or work order is created by a tenant, PM, or via API.
Trigger AI triage to classify urgency, assign to the correct vendor, and notify the owner if cost estimate exceeds threshold.
Tenant Added or Updated
Fires when a new tenant record is created or an existing record is modified (move-in date, contact info, status).
On new tenant move-in, auto-create a utility notification package and send HOA/building rules document.
Outstanding Balance Detected (Scheduled Poll)
Daily poll returns all units with a past-due balance, enabling delinquency monitoring across the full portfolio.
Identify newly delinquent tenants each morning and enroll them in the graduated late-notice sequence automatically.
Actions
Create or Update Lease
Create a new lease record in Buildium or update terms on an existing lease (rent amount, end date, deposit).
After a DocuSign renewal is executed, push the updated rent amount and new end date back into Buildium automatically.
Post Transaction to Ledger
Record income or expense transactions against a property's general ledger in Buildium.
When a vendor invoice is approved in your AP system, post the expense to the correct property ledger in Buildium without manual entry.
Create Work Order
Create a new maintenance work order in Buildium assigned to a vendor or PM staff member.
After a lease expiration with no renewal, automatically create a unit-turn work order for the make-ready inspection.
Upload Document to Owner or Tenant Portal
Programmatically push a PDF or document file into Buildium's owner or tenant document library.
After the AI-enhanced owner statement is assembled, push it into each owner's Buildium portal so it is visible alongside their payment history.
Create or Update Tenant Record
Create a new tenant in Buildium or update contact details, notes, or status on an existing tenant.
When a rental application is approved in your external screening workflow, push the approved applicant into Buildium as a tenant ready for lease creation.
Generate and Retrieve Owner Statement
Trigger a statement generation for a specific owner and property period, then retrieve it as a PDF for delivery.
On the 1st of each month, trigger owner statement generation for all properties and deliver the PDFs with AI commentary to each owner's email.
Setup Guide
Get started in approximately 30 minutes to authenticate and run first read call; 2-3 hours to build delinquency monitoring and owner statement delivery end-to-end
Prerequisites
- Active Buildium account (Essential, Growth, or Premium plan — all include API access)
- Buildium API credentials: navigate to Administration → API Settings to generate a client ID and client secret
- n8n instance (cloud or self-hosted) or similar automation platform with HTTP Request node capability
- Basic familiarity with your property list, owner roster, and unit structure in Buildium
1
Generate Buildium API Credentials
Log into Buildium as an administrator. Navigate to Administration (gear icon) → API Settings. Click 'Create Credential Set' to generate a client ID and client secret. These are your OAuth 2.0 credentials. Store them securely — you will exchange them for a Bearer token at the token endpoint before every API call.
Buildium uses OAuth 2.0 client-credentials flow. The token endpoint is https://auth.buildium.com/oauth/token. In n8n, use the 'Header Auth' credential type with 'Authorization: Bearer {token}' or configure the HTTP Request node to fetch the token first and pass it forward.
2
Authenticate and Test a Read Call in n8n
In n8n, create a two-node workflow: first an HTTP Request node that POSTs to the Buildium token endpoint (grant_type=client_credentials) and returns the access_token. Pipe that token into a second HTTP Request node that calls GET https://api.buildium.com/v1/properties — it should return your property list. Confirm you can see your properties before building further.
Buildium's API base URL is https://api.buildium.com/v1/. Reference the Buildium Developer Portal (developer.buildium.com) for Swagger documentation on all available endpoints and response schemas.
3
Map Your Properties, Units, and Owners
Use the GET /properties and GET /associations endpoints to retrieve your property IDs. Pull GET /units under each property to get unit IDs. Pull GET /owners to map your owner roster. Record these IDs — they are the foreign keys you will reference when reading payments, creating work orders, and posting transactions. Store the mapping in n8n's workflow variables or a Google Sheets reference table.
If your portfolio has 10+ properties, pull the full property and unit list once, store it in a Google Sheet, and reference that sheet rather than calling the Buildium API on every workflow run. Reduces latency and API rate-limit pressure.
4
Build Your First Automation: Daily Delinquency Report
Create a scheduled n8n workflow that runs daily at 7 AM. It calls GET /leases with a filter for outstanding balances and past-due dates. Parse the results to identify units more than 3 days late. For each delinquent unit, look up the tenant name and contact, then send a summary Slack message to your asset-management channel with the full list. This proves the data pipe before you build the outreach sequences.
Start read-only. Run the delinquency report for 2-3 days before wiring outreach — verify you are catching the right units and the data is accurate before automating tenant communications.
5
Connect Owner Statement Delivery
Build the monthly owner statement workflow: on the 1st, call GET /ownerships/{ownershipAccountId}/ledger to retrieve transaction history. Feed the transaction data into an AI node to generate a variance commentary. Retrieve the Buildium-generated owner statement PDF via GET /reports/ownerstatements or use your own PDF assembly. Email the combined packet to each owner using Gmail or SendGrid.
If you want the AI commentary to be property-specific and grounded in actual figures, pass the month's totals (gross collected, vacancy loss, maintenance spend, net to owner) explicitly in the AI prompt rather than relying on the AI to read raw transaction JSON.
6
Wire the Lease Expiration Renewal Sequence
Daily at 8 AM, call GET /leases filtered by end date between today+30 and today+90. Group leases by the 90/60/30-day bucket. For leases hitting each threshold for the first time, enroll them in the appropriate email via Gmail or your email platform. Use a Google Sheets log to track which leases have already received each touchpoint to prevent duplicate sends.
The Buildium lease endpoint returns the unit address, tenant name, and lease end date. Include all three in your email template personalization tokens — tenants respond much better to emails that reference their specific unit and exact lease date than generic renewal notices.
Frequently Asked Questions
Common questions about Buildium integration
Related Integrations
Explore other tools that work great with your workflow
Ready to Automate Buildium?
Get a free AI roadmap showing how to connect Buildium with your existing tools for maximum impact.
Get Your Free AI Roadmap