This illustrative example is a product design developed by Canvas Developers to demonstrate what our engineering team can build, rather than delivered client work. ShareRent explores a specialized Pelecard automated split billing roommate portal designed for co-living operators, property managers, and multi-tenant households. By synchronizing unequal lease shares, fluctuating utility meters, and localized payment rails, the architecture provides an end-to-end framework for multi-tenant financial settlements.
Project at a Glance: ShareRent Architectural Concept
Modern co-living spaces frequently struggle with manual spreadsheet reconciliations when allocating uneven rent obligations and fluctuating municipal utility bills among multiple occupants. ShareRent addresses this friction through dedicated proptech group billing microservices and co-living utility billing automation engineered to decouple tenant identity, ledger accounting, and transaction processing.
The technical architecture integrates a responsive Next.js frontend client for tenant onboarding and ledger inspection, a high-performance Python FastAPI backend for financial calculations and scheduled cron execution, and Supabase for relational data storage with row-level security. For payment processing and recurring debt collections, the concept interfaces directly with localized gateway infrastructure, combining Grow payment integration for digital invoice authorization with Pelecard for tokenized profile debits.
The Brief: Multi-Tenant Utility Splitting and Arrears Constraints
Managing shared residential spaces presents two primary operational hurdles: variable monthly cost attribution and cross-tenant payment liability. In typical apartment sharing agreements, room sizes dictate unequal base rental splits, while consumption-based municipal charges—such as water, gas, electricity, and municipal taxes (Arnona)—fluctuate each billing cycle. Manual collection creates friction among roommates and delays master rent settlement to property managers.
To establish dependable recurring group rent splitting Israel residential property managers require automated charge calculation and strict compliance isolation. When one tenant defaults or delays payment, the system cannot silently expose remaining occupants or freeze the shared tenancy ledger without clear audit trails. Furthermore, local payment regulations forbid storing raw credit card PAN details on application databases. Financial processing must isolate cardholder data through verified tokenization, ensuring that all recurring charges and sub-tenant debits comply with PCI DSS standards while executing localized clearing.
Engineering Approach: AI-Accelerated Scaffolding with Human Code Review
At Canvas Developers, our software engineering team in Dhaka builds full-stack systems using modern AI coding harnesses alongside senior engineering oversight. For illustrative examples like ShareRent, AI coding agents rapidly scaffold baseline boilerplate, generating repetitive schema migrations, API route definitions, and frontend UI components in Next.js. This acceleration compresses exploratory design cycles, allowing developers to model complex proptech group billing microservices in days rather than weeks.
However, AI code generation has clear failure modes in financial systems. Autonomous models routinely produce race conditions in payment state machines, misconfigure idempotency keys, and omit boundary checks in ledger arithmetic. Consequently, our experienced software engineers direct every architectural decision, audit webhook verification logic, and conduct rigorous human code reviews. Whether clients select our Private / Local AI Engineering package or Claude Code / OpenAI Codex Engineering workflow, senior engineers retain complete ownership over payment security, database integrity, and production release decisions.
What Was Built: Tokenized Split Billing and Ledger Workflows
The ShareRent concept translates complex group billing into three core user interfaces and backend workflows designed specifically for multi-tenant co-living communities.
The tenant onboarding interface features a streamlined setup screen where roommates confirm individual room allocation percentages and establish payment profiles using Pelecard recurring payment tokenization. Instead of capturing raw card details on local servers, the view initiates a secure token registration session via Pelecard's Gateway21 API. The credit card receives a 10-digit encrypted token validated through a standard J5 bank authorization transaction, securely linking recurring permissions to the tenant record.
For ongoing billing, an administrative utility dashboard lets property managers enter fluctuating meter totals alongside fixed rent. The screen displays visual split cards detailing each resident's proportional share before executing automated Grow payment integration for property management, which dispatches one-click payment links via SMS or email. When a payment window expires without settlement, automated arrears escalation triggers tokenized debits while isolating unpaid balances from co-tenants.
Finally, the shared ledger view provides an auditable double-entry portal within the Pelecard automated split billing roommate portal. Roommates inspect intuitive transaction feeds featuring real-time payment status badges, synchronized debit and credit entries, and downloadable monthly PDF statements generated by FastAPI and stored in Supabase.
Technical Considerations: Hardening Group Billing Infrastructure
Building reliable shared billing infrastructure demands defensive engineering to prevent double debits and desynchronized ledgers. When processing batch utility collections across apartment units, network timeouts or gateway retries can trigger duplicate requests. ShareRent implements strict idempotency keys within FastAPI middleware, ensuring that webhook callbacks and gateway settlement events are processed exactly once.
Furthermore, maintaining financial trust requires strict tenant data isolation. Each apartment group operates within partitioned Supabase schemas protected by PostgreSQL Row-Level Security policies. Roommates inspect only their shared apartment expenses and individual payment histories, while property managers access aggregate arrears telemetry. Combined with secure Pelecard recurring payment tokenization, this architecture prevents cross-tenant data leaks and maintains complete auditability during billing discrepancies.
Turn Proptech Concepts into Production Systems with Canvas Developers
Transforming complex billing concepts into hardened commercial platforms requires robust engineering, reliable gateway integrations, and disciplined software architecture. Whether your team requires custom Grow payment integration for property management or multi-tenant ledger systems, Canvas Developers delivers production-ready web and mobile applications.
Our experienced engineering team structures every project around clear scoping, milestone testing, and transparent delivery. Contact us through our contact form to request a scoped assessment for your next software platform.
