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Invoice & billing software

Family business project

MK3

A practical billing tool that replaces manual document preparation in Word.

In use for the family business

The problem

Simplify invoices and quotations for my father's business, replacing a manual Microsoft Word workflow.

My role

I built the billing system around the business's document requirements.

The result

My brother currently uses MK3 to generate invoices for my father's business.

What I built

  • GST and ordinary invoices
  • Proforma invoices
  • Quotations and discounted quotations
  • A reusable document generation workflow

Take a closer look

Inside the project.

Enter client details and work items, review the GST breakdown and totals, then generate a PDF tax invoice.

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An invoice generated with business details, line items, totals, and signature fields.

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A GST tax invoice with taxable values and a breakdown of the applicable taxes.

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A quotation listing the proposed work and item rates.

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A discounted quotation showing original and revised rates together.

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