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Solutions/Build A/Professional Services
Build A · Web Application

Build a custom invoicing system — invoice generation, delivery, and payment in one.

QuickBooks and FreshBooks are accounting platforms. If you need invoicing that's deeply integrated with your service workflow — projects, time tracking, deliverables — a custom invoicing system connects billing directly to the work.

150+
Projects shipped
99%
Client retention
~12wk
Average delivery
The problem
Service business owner or agency that needs invoicing integrated with their project workflow rather than a standalone accounting tool

Service businesses need invoicing that connects to their work. A consulting firm invoices against deliverables. An agency invoices against project phases. A contractor invoices against line items that come from a job estimate.

Why standalone accounting tools fall short for service businesses:

  • QuickBooks doesn't know about your project status or deliverables
  • Invoice line items are entered manually, not pulled from the project record
  • Invoice approval workflow doesn't exist — invoice goes out without review
  • Client disputes require going back to the project record manually

Custom invoicing connected to your workflow: Invoice line items pulled from the project record. Invoice generated with one click when a milestone is complete. Sent via email with a Stripe payment link. Payment recorded and synced to QuickBooks.

What we build

Custom invoicing system deployed — invoice generation from project records, payment collection, and accounting sync

Invoice generation

from project record, time log, or manual entry

Invoice templates

branded PDF with custom line items

Payment collection

Stripe link in the invoice email

Payment tracking

paid, partial, overdue status

Accounting sync

QuickBooks or Xero integration

Client portal

invoice history and payment for clients

Engagement

One honest number to start.

Fixed-scope, fixed-price. The number below is the starting point — final scope is built from your brief.

Tier · Web ApplicationFixed scope
From$25,000

Custom invoicing system deployed — invoice generation from project records, payment collection, and accounting sync

99% client retention across 40+ projects
Process

Three steps, every time.

The same repeatable engagement on every project. No surprises, no mystery, no billable ambiguity.

01Week 0

Brief & discovery.

We send you questions, then get on a call. Output: a written scope with every step, feature, and integration listed.

02Weeks 1–N

Build & ship.

Fixed schedule, weekly reviews. No scope creep unless you change the scope — and if you do, we reprice it transparently.

03Post-launch

Warranty & retainer.

30-day warranty on every launch. Most clients stay on a monthly retainer for ongoing features and maintenance.

Why fixed-price

Why Fixed-Price Matters Here

Invoicing systems have defined generation and payment flows. Fixed-price from the spec.

FAQ

Questions, answered.

No. The invoicing system handles invoice generation, delivery, and payment. QuickBooks or Xero handles the accounting. They're connected via API sync.

Yes. Recurring invoice templates with configurable frequency. Stripe Billing for automatic charge or manual invoice on a schedule.

Next step

Tell Ryel about your project.

Describe what you’re building and what outcome you need. You’ll have a written, fixed-price scope within the week.