Stage · MVP

Vertical ERP

MyBuildBooks

Construction accounting and ERP purpose-built for Australian builders. Not adapted from a US product.

AU compliance
8 states
Job costing
Live CVR
AI features
Native + graceful
Cash forecast
13wk + 12mo
Trust accounts
QLD + NSW + WA
Mobile
On-site PWA

Fills the gap between simple accounting tools (Xero, MYOB) that lack construction features and enterprise ERPs (Procore, SAP) that are too expensive and complex for SMEs.

The problem

Why this exists.

The Australian construction industry contributes $175B AUD to GDP and employs 1M+ workers. In 2024, 3,217 firms collapsed, many from poor cash-flow visibility. Builders cobble together Xero plus Buildxact plus spreadsheets plus email, missing cost blowouts until it is too late.

  • § 01

    3,217 firms collapsed in 2024

    Most through cash-flow blindness. Only 58.6% of invoices are paid within 30 days, and builders use 11 disconnected data environments on average.

  • § 02

    $56B annual productivity gap

    Australian construction lacks an integrated tool that handles AU accounting, construction workflows, and compliance in one place.

  • § 03

    Stuck between two extremes

    Xero ($50 to $80/mo) is great for the accountant but useless for running a building business. Procore costs $30K+ per year and assumes a US workflow.

  • § 04

    Compliance is a moving target

    BAS, GST, TPAR, Security of Payment Act, QLD Project Trust Accounts, Modern Awards, Payday Super. Generic SaaS forces add-ons or manual workarounds for every one.

What is built

Working software, not slides.

Each item below is in the codebase today. The full architecture and code walkthrough is available under NDA.

  • Live Job Costing (CVR): real-time Cost Value Reconciliation showing forecast final margin per project, with drill-down to cost code.
  • Progress claims and variations with auto GST, retention, and previous-claims calculation.
  • AU compliance baked in: BAS, GST, TPAR, Security of Payment Act for all 8 states.
  • Subcontractor management with link-based portal (no app, no login).
  • Cash flow forecasting: 13-week and 12-month rolling with 9 early-warning indicators.
  • Trust accounts: QLD PTA, NSW RTA, WA retention. QBCC compliant.
  • Two-way Xero sync from day one. Migrate gradually or run both.
  • 10 AI-native features (invoice OCR, smart bank reconciliation, risk scoring), every one degrades gracefully.
  • Mobile-first PWA that works on-site, no app store.
Modules

The product in parts.

Where the codebase is decomposed into shippable feature modules.

  • Core Accounting

    Double-entry GL, AU construction chart of accounts, GST engine, BAS auto-population with SBR lodgement, TPAR.

  • Job Costing & CVR

    Hierarchical cost codes, budget vs actual vs committed, live forecast final margin, RAG portfolio status.

  • Progress Claims & Variations

    Upstream and downstream claims, variation lifecycle, state-specific Security of Payment compliance.

  • Subcontractor Management

    ABN verification, compliance tracking, link-based portal, TPAR auto-capture.

  • Cash Flow Forecasting

    13-week + 12-month forecast, 7 scenario templates, 9 early-warning indicators.

  • Trust Accounts

    QLD PTA, NSW RTA, WA retention. Per-project per-beneficiary ledgers, quarterly statements, QBCC compliant.

  • Procurement

    POs linked to projects and cost codes, three-way matching, committed costs into CVR.

  • Reporting & Analytics

    CVR, project P&L, RAG dashboards, BAS/TPAR, retention schedule, WIP (AASB 15).

  • AI & Automation

    10 AI-native features. System works fully without AI; every feature degrades gracefully.

  • Integrations

    Xero two-way sync, Basiq bank feeds, ATO SBR, SuperStream, MYOB, Buildxact, ABA payment files.

Target market

Who buys this.

~15,000 to 20,000 mid-market Australian construction firms currently with no integrated solution.

  • Small Builder

    $500K to $5M revenue, 2 to 10 staff

    All-in-one: quote, track, invoice, BAS.

  • Medium Builder

    $5M to $50M revenue, 10 to 50 staff

    Real-time profitability and subcontractor management.

  • Large Builder

    $50M to $200M revenue, 50 to 200 staff

    Integrated ERP with trust accounts and payroll.

Pricing model

How it monetises.

No lock-in, month-to-month. Undercuts Procore (which charges 0.1 to 0.2% of project costs) while delivering construction-specific value Xero does not.

  • MBB Starter

    $99 to $199 / mo

    Solo builders, 1 to 5 projects

    Core accounting, job costing, BAS, GST, TPAR, claims, 3 users.

  • MBB Professional

    $299 to $499 / mo

    Small builders, 5 to 20 projects

    Adds subcontractor portal, retention, variations, trust accounts, 10 users.

  • MBB Business

    $699 to $999 / mo

    Mid-size, 20 to 50 projects

    Full ERP, multi-entity, advanced reporting, cash flow forecasting, 25 users.

  • MBB Enterprise

    Custom

    Large, 50+ projects

    API access, custom integrations, dedicated support, unlimited users.

Technical stack

The tools in play.

  • Next.js 14
  • NestJS
  • PostgreSQL 16
  • Redis + BullMQ
  • AWS Sydney (data residency)
  • TypeScript
  • shadcn/ui
  • Claude API
  • Prophet ML
  • Socket.io

Architecture and design phase complete (21,749 lines of implementation-ready documentation). Codebase under active development on monorepo.

What's included

The full transfer package.

Acquisition transfers everything below. Investment unlocks the same access for due diligence: code walkthrough, financial pack, customer/user list, and architecture briefing under NDA.

  • Full source code with complete git history (monorepo).
  • 20 architecture and design documents (1.1 MB / 21,749 lines), implementation-ready.
  • Database schema (56 tables), Prisma migrations, and seed data.
  • AU compliance rules engine (BAS, GST, TPAR, SoP Act, trust accounts) as configurable data, not hard-coded.
  • Brand assets, domain, and DNS handover.
  • 30 to 90 day transition with founder, including code walkthrough and architecture briefing.
  • Vendor account migration support (AWS Sydney, Claude API, Basiq, ATO SBR).
  • Full IP rights, including code copyright and the MyBuildBooks brand.
Deal shape

Open to the following.

Anything outside this list is a no for now.

  • Open to investment
  • Open to acquisition
  • Open to partnership
Take the next step

Ready to talk?

Email lands directly with me. I reply within 24 hours, send an NDA, and book a 30-minute call. From there: data room, code walkthrough, and a structured term discussion.

Invest Now Acquire Now Book an intro call

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