What should billing and invoice management software do?

The facts about billing and invoicing software

• The best invoices are born from orders — the picked, checked order becomes the invoice, so what shipped is what was billed.
• Approval is a deliberate step: quantities are committed when the invoice is approved, not by accident.
• The accounting handoff decides the tool: invoices push to Xero or MYOB; payment status mirrors back; nobody re-keys.
• Card details should never be visible to staff — BSimple stores cards via EWay on PCI DSS compliant equipment.
• BSimple includes invoicing on every plan from $180/month (AUD) — it is the output of the operations record, not a separate module.
• Where it fits: this page is one branch of the inventory management guide.

Where billing software usually goes wrong

Standalone billing tools solve the typing half of the problem and ignore the truth half. They produce handsome invoices — from data somebody re-entered. The invoice says twelve units; the warehouse picked ten; the customer disputes one line; and the truth lives in three systems that never compared notes. Every downstream cost — credit notes, reconciliation days, strained customers — traces back to the invoice being disconnected from the order.

The second mistake is treating approval as a formality. In a well-built flow, approval is the moment quantities become commitments: stock is deducted, the invoice is final, and the accounting system receives it. Software that auto-sends without that deliberate step is optimising for speed at the exact point where accuracy matters most.

What a proper invoice flow looks like

Order in. The customer orders through a portal, phone or synced store — entered once against live stock. Check and pick. The warehouse confirms the order is fillable and fills it. Approve. A deliberate step turns the checked order into an invoice — quantities committed, stock deducted. Push. The invoice lands in Xero or MYOB with GST intact; no re-entry, no export. Mirror. Payment status flows back — paid, voided — so operations and accounting agree without a reconciliation day. Collect. Cards stored securely via EWay on PCI DSS compliant equipment mean staff can charge a stored card without ever seeing the numbers, and scheduled payment options fit how trade customers actually pay.

That is the flow BSimple runs, end to end, on one record. The order management page walks the pre-invoice half of it, and the Xero integration details the handoff.

How to compare billing tools honestly

Ask where the invoice is born. If the tool generates invoices from a form, it is a typewriter with a logo — the data entry has moved, not gone. If it generates them from a checked order on the same record as stock and purchasing, billing becomes a by-product of operations rather than a department. Then test the return path: mark an invoice paid in the accounting system and see how long the operations side takes to notice — in BSimple it is immediate, because the status mirrors back.

Finally, price the whole loop including the payment stack: card storage, scheduled payments and approval workflow are included in BSimple's plans from $180/month (AUD), not upsold as premium billing features. The expense-side counterpart covers money flowing the other direction, and the tracking-software comparison covers the stock truth the invoices depend on.

Where BSimple fits

We build BSimple, so weigh that. Invoicing in BSimple is the output of the operations record: portal and phone orders, picking and packing, deliberate approval, then the push to Xero or MYOB with payment status mirroring back, and EWay-backed card storage for customers who pay by card. For wholesale, manufacturing, distribution and trade businesses, that covers the entire bill-to-collect loop without a separate billing product.

The boundary, as always: BSimple does not replace the accounting system — compliance, BAS and the ledger stay in Xero or MYOB. If you need a standalone invoicing tool for a business with no stock, any number of them will serve; if your invoices should be born from checked orders, start the free trial and take one order to invoice on day one.