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ORINCORE

Commerce and service businesses

Custom Accounting, Invoicing and GST Billing Software Development

Quotes, invoices, payments and expenses are the lifeblood of a business. Custom invoicing software can follow your pricing rules and tax setup and reduce the manual work around getting paid.

Orincore builds accounting, invoicing and billing software for service businesses, distributors and platforms, with tax-ready invoices, payment links, reminders and reports, or with integration to your existing accounting package.

See our work

What your accounting and gst billing software can include

We build only the modules you need and add the rest later, so you are never paying for a bloated package.

  • Quotes and invoices

    Branded quotes and invoices with your numbering and tax rules.

  • Payments and reminders

    Payment links, instalments and automatic overdue reminders.

  • Expenses and vendors

    Expense capture, vendor bills and approvals.

  • Taxes

    Tax calculation and reports configured as your accountant specifies, such as GST, VAT or sales tax.

  • Recurring billing

    Subscriptions and repeat invoices for retainers and memberships.

  • Accounting integration

    Sync with your accounting package or export to your accountant.

Who it is for

  • Service businesses and agencies
  • Distributors and wholesalers
  • Marketplaces and platforms that bill customers
  • Businesses with unusual pricing or tax setups

What to plan for

Practical points we cover with you before building.

  • Accountant sign-off

    Tax rules are your accountant's domain. We implement their specification and you remain responsible for compliance.

  • Data accuracy

    Financial data needs audit trails and careful testing, which we build in.

How we build it

A clear, milestone-based process with a written estimate before any work begins.

  1. 01

    Scope

    A short call to understand your process, users and priorities, then a written scope and estimate.

  2. 02

    Design

    Clickable designs and data flows you can review before development starts.

  3. 03

    Build in phases

    Working releases every one to two weeks, starting with the module that matters most.

  4. 04

    Launch and support

    Testing, launch, documentation and up to 2 months of free support, maintenance and bug fixes.

Services behind this solution

How we price projects

Frequently asked questions

Can you generate GST invoices?

Yes. We format invoices to the tax rules your accountant specifies, including GST where relevant.

Can it integrate with our accounting software?

Usually yes, if it offers an API or import format.

Can it send payment reminders automatically?

Yes. Reminders can go by email, SMS or WhatsApp.

Do you provide support after launch?

Yes. Every project includes up to 2 months of free support, maintenance and bug fixes after launch, counted from the day we hand the application over to you to launch. After that period, we do not provide free support: any further support, maintenance or changes to the service are paid, and we agree the price with you in writing before work starts.

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Ready to discuss your project?

Tell us what you want to build. You will get a written estimate range and clear next steps, with no obligation. Every project includes up to 2 months of free support after launch.

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