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Finance

Invoicing
Send a polished invoice in minutes

Pick a client, add your line items, and send a clean, branded invoice by email or PDF. Track who’s paid, who’s been sent and what’s overdue — with your bank transfer details right on every invoice.

The Invoice

From draft
to paid

Build an invoice from your client list and line items, send it, and watch its status. Outstanding and overdue totals sit at the top so you always know what you’re owed.

Line items with auto totals

Add descriptions, quantities and prices; subtotal, tax and total are calculated for you.

Status tracking

Draft, Sent and Paid — with overdue flagged automatically and outstanding stats up top.

Bank details built in

Your bank transfer info prints on every invoice so clients can pay you directly.

INVOICE
#INV-2026-0042
Paid
Bill To
Acme Trading Ltd
Issued 12 Apr · Due 26 Apr
DescriptionQtyTotal
Consulting — April1012,000
Design assets13,500
Subtotal15,500
Tax0
TotalHK$15,500
Hang Seng · 024-xxxxxx-883
The Lifecycle

Every invoice, one clear path

No guessing where things stand. Each invoice moves through a simple status, with overdue flagged the moment a due date passes.

Draft

Build it from your client and items — save and edit freely.

Sent

Emailed or saved as PDF, with your bank details for payment.

Overdue if unpaid
Paid

Mark it paid with the date — it drops out of your outstanding total.

Capabilities

Billing, the easy way

Email or PDF

Send invoices straight to the client’s inbox, or save and print a clean PDF.

Clients from your CRM

Pick an existing client or add a new one — the same client list every app shares.

Outstanding at a glance

Dashboard stats show what’s owed and what’s overdue, so nothing slips.

How It Works

Set up in three steps

01
Pick a client

Choose from your client list or add a new one on the spot.

02
Add your items

List descriptions, quantities and prices; totals and tax calculate themselves.

03
Send & track

Email or PDF it, then mark sent and paid as the money comes in.

The OasysFly Advantage

No integrations. No middleware.
One shared database.

Invoicing isn’t a separate billing app to sync. Because every app shares the same database, your clients, quotes and orders are already there — so an invoice is one click from a quote, with zero re-typing.

Invoicing
Bill & get paid
One shared database
Same clients & records
Clients (CRM)
Quotations
Sales Orders
+ every other app

No connectors · No API glue · No syncing

Ready to get paid faster?

Send your next invoice in minutes — from the same record that holds your clients and quotes.

Get Started