Contractors That Get Paid on Schedule Have a Better Billing System
Cash flow is the biggest operational challenge in construction. Materials to buy, subcontractors to pay, equipment to rent — all on a payment timeline that depends on clients paying draw invoices on time and approving change orders without delay.
We build the milestone billing, deposit collection, change order approval, and automated follow-up systems that protect your cash flow through every phase of a project.
Who this is built for
- General contractors and design-build firms
- Kitchen and bathroom remodelers
- Roofing, siding, and exterior contractors
- HVAC, plumbing, and electrical contractors
- Flooring, painting, and specialty finishing trades
- Commercial build-out and tenant improvement contractors
When It Makes the Most Sense
- Draw invoices regularly paid late by homeowners or GCs
- No deposit collected before project materials are ordered
- Change orders approved verbally but never billed
- Managing billing across multiple active projects is chaotic
- Subcontractors waiting on payment because owner payment is delayed
- End-of-project billing disputes over scope and balance
Where Contractors Lose Cash Flow to Billing Problems
Construction payment delays are usually a billing process problem, not a client problem.
No deposit before materials are ordered
A homeowner approves a $25,000 kitchen remodel. The contractor orders materials, schedules labor, and then the homeowner delays. Without a structured deposit and draw schedule, the contractor is exposed from day one.
Draw invoices with no automated follow-up
A draw invoice is emailed at the 30% project milestone. Two weeks pass. The homeowner has not paid. The contractor calls once. Nothing. Meanwhile, material invoices are due and payroll is coming. Automated follow-up solves this.
Change orders approved in conversation but never formally billed
Scope changes happen on every project. When they are agreed verbally and billed informally later, disputes arise. A change order approval and payment flow documents the change and collects authorization before work begins.
No visibility across multiple project billing stages
A contractor with five active projects at different billing stages is tracking draw schedules, deposits, and outstanding invoices across a combination of email, spreadsheets, and memory. One missed invoice is a cash flow crisis.
What's Included for Construction & Contracting
The exact scope depends on your business size, existing tools, and operational priorities.
Deposit, draw & project billing
- Contract signing and initial deposit collection
- Draw schedule billing at defined project milestones
- Change order approval and billing flows
- Final invoice and punchlist payment collection
- Material deposit and subcontractor payment coordination
- Digital contract and scope approval with payment authorization
Automation & follow-up
- Automated draw invoice generation at milestone completion
- Payment reminder sequence for outstanding project invoices
- Change order approval and immediate billing flow
- Retainage release billing at project completion
- Lien waiver and compliance document coordination with payment
- Project billing dashboard — all invoices, stages, and outstanding amounts
What Changes After the System Is Built
The difference is not more effort. It is what the system does automatically.
- ✕ Contractor starts work before deposit is collected — cash flow exposure from day one
- ✕ Draw invoice emailed manually — if not paid in two weeks, one follow-up call, then awkward silence
- ✕ Change order agreed in a text message — billed informally with no documentation
- ✕ Five active projects tracked in a spreadsheet that is updated inconsistently
- ✕ Subcontractor payments delayed because owner draw has not been collected yet
- ✕ End-of-project disputes about what was included and what was billed
- ✓ Digital contract signed and deposit collected before any materials are ordered
- ✓ Draw invoice sent automatically at milestone — payment reminder sequence runs until paid
- ✓ Change order submitted as a formal document — client approves digitally and pays before work proceeds
- ✓ All project invoices visible in a single dashboard with status, amount, and days outstanding
- ✓ Draw collection tied to subcontractor payment schedule — cash flow synchronized
- ✓ Scope approval and payment history provides clear documentation for any end-of-project discussion
What Contractors Typically See
Faster draw collection and improved cash flow
Automated draw invoicing at milestone completion and systematic payment reminders reduce the average days outstanding on project invoices — keeping your cash flow aligned with project timelines.
Fewer change order disputes
Formal change order approval and billing flows document scope changes before work proceeds — eliminating the end-of-project disputes that are expensive, damaging to client relationships, and time-consuming to resolve.
Full visibility across all active project billing
A single dashboard showing every active project, every invoice stage, and every outstanding amount gives you the cash flow visibility to manage operations and subcontractor payments confidently.
Part of a Bigger System
This page covers one specific intersection. Go deeper on either side below.
See the full scope of our payments and monetization service — billing infrastructure, subscriptions, and revenue systems.
See the full picture of what FMS Studio builds for construction & contracting businesses.
Questions Contractors Ask About Payments
Draw schedules are configured at the project level based on milestones relevant to the scope — rough-in, drywall, trim, completion, for example. Each milestone triggers an invoice automatically when marked complete. The schedule can be customized for every project type and size.
We build the payment collection layer alongside or integrated with your existing estimating and project management tools. Direct integration depends on the platform, but invoice delivery and payment collection can be designed around most existing workflows.
Retainage is tracked as a separate line item on draw invoices throughout the project and released as a final billing event on substantial completion. The release can be tied to a specific approval step — such as a punch list sign-off — before the retainage invoice is issued.
Yes. Commercial billing for general contractors often involves specific invoice formats, AIA billing documents, and lien waiver requirements. We build billing flows that account for these requirements and produce the documentation that GCs and owners expect.
We build the contractor-to-subcontractor payment side of the billing system — coordinating subcontractor invoice approvals, pay-when-paid timing, and payment processing — so the entire project payment chain is organized in one place.
Ready to Build a Better System for Construction & Contracting?
Book a strategy call and we will review your current setup, walk through what a custom-built system looks like for construction & contracting, and outline the specific steps to get started.
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