LupinSync Global Invoices
Cross-Border Invoicing Architecture

Global Invoicingfor Modern Business

Send, receive and manage invoices across countries, currencies and tax jurisdictions — all in one platform.

Get StartedLearn More
150+Currencies
Multi-EntityLedger Isolation
AutonomousTax Engines
API-FirstIdempotent Core

What it does

Invoicing that works the way cross-border business does

Create invoices, record payments and send PDFs from one place, whichever country, currency or tax rules each sale involves.

  • Customers in any country

    Keep each customer's address, tax ID and default currency on file, and bill businesses or individuals wherever they are.

  • The currency your customer pays in

    Issue invoices in any supported currency with the right number of decimal places. If you record an exchange rate at issue, it stays on the invoice.

  • Tax you control

    Choose the treatment on every line: a rate you set, zero-rated, exempt or reverse charge. Save tax codes once and reuse them.

  • More than one business

    Run several legal entities from one account. Each keeps its own customers, invoice numbers and branding.

Try it

See the invoice your customer gets

Change the currency or payment status. Totals, tax and the balance due update the same way they do in the app.

Currency
Payment status
Northwind Studio Ltd14 Hanover Street, London W1S 1YH
VAT GB 284 7731 06

Invoice

NWS-2026-0142
Partly paid
Billed to
Halden & Co. GmbH
Torstraße 88, 10119 Berlin
Issued
1 Oct 2026
Due
31 Oct 2026
DescriptionQtyPriceAmount
Brand identity systemLogo, type and colour guidelines1£3,350.00£3,350.00
Website designUp to 8 page templates1£5,400.00£5,400.00
Monthly supportBilled per month3£360.00£1,080.00

Payment terms: 30 days. Please quote the invoice number with your payment.

Subtotal
£9,830.00
VAT 20%
£1,966.00
Total
£11,796.00
Payments received
£5,898.00
Balance due
£5,898.00

How it works

From first invoice to paid in three steps

Setup takes a few minutes. After that, every invoice uses the details you saved, so you only fill in what changes.

  1. Set up your business

    Add your legal entity, address, tax details and logo. Pick an invoice template and a numbering format.

  2. Add customers and invoice them

    Save customers once, then create commercial or proforma invoices in their currency with the tax on each line.

  3. Send it and record payments

    Share a secure link or the PDF. Record full or part payments and the balance due updates for you.

Part payments

Record several payments against one invoice. The status moves from unpaid to partly paid to paid on its own.

Recurring invoices

Set a schedule and invoices are created for each period. Nothing is charged to your customer's card.

Proforma invoices

Send a quote-style proforma with its own number series before you issue the final invoice.

Branded templates

Choose from print-ready A4 templates and add your logo. Every PDF is rendered in the cloud.

Secure sharing

Each invoice gets a private link your customer can open and download from without an account.

WooCommerce orders

Connect your store with the free plugin and turn orders into invoices, one at a time or in bulk.

Free pluginFor WordPress and WooCommerce, v0.4.3

Invoicing, built right into WooCommerce

Install the free LupinSync plugin and turn every order into a numbered, tax-ready invoice with a polished PDF, without leaving your WordPress admin.

Download free pluginSee how it works
  • WordPress 6.4+
  • PHP 8.0+
  • WooCommerce HPOS ready
  • GPLv2 or later

For developers

Create invoices from your own code

The REST API runs on the same service as the dashboard, so anything you can do in the app you can automate.

  • Scoped API keys. Give each key only the permissions and legal entities it needs.
  • Safe retries. Send an Idempotency-Key and a repeated request never creates a second invoice.
  • Signed webhooks. Get notified when invoices are issued or paid, and verify every event.
Create a free API key
POST/api/v1/invoices
curl -X POST https://global-invoices.lupinsync.tech/api/v1/invoices \
  -H "Authorization: Bearer $LUPINSYNC_KEY" \
  -H "Idempotency-Key: order-1042" \
  -d '{
    "legalEntityId": "ent_uk",
    "buyerId": "cus_halden",
    "documentTypeCode": "commercial_invoice",
    "currencyCode": "GBP",
    "currencyExponent": 2,
    "priceMode": "TAX_EXCLUSIVE",
    "lines": [{
      "description": "Website design",
      "quantityScaled": "1", "quantityScale": 0,
      "unitPriceMinor": "540000",
      "taxes": [{
        "displayName": "VAT",
        "treatment": "TAXABLE",
        "rateBps": 2000
      }]
    }]
  }'

Security

Built for financial records

Invoices are legal documents. LupinSync is designed so they stay accurate, private and traceable.

Checked on the server

Every request is authorised on our servers against your role and legal entity. The browser is never trusted to decide.

Your data stays yours

Each account is kept separate at the database level, and each legal entity has its own customers and invoices.

Hashed API keys

We store only a one-way hash of each key. Scopes limit what a key can read or write.

Audit trail

Issuing invoices, recording payments and voiding are logged with a timestamp, so your accountant can review them.

Issued invoices don't change

Customer details, amounts and tax are snapshotted at issue, so a later edit never rewrites a sent invoice.

No card data

Subscription payments are handled by our PCI-compliant payment processor. We never see or store card numbers.

Pricing

Start free. Upgrade when your store grows.

The Free plan covers invoicing, customers, payments and the API. Paid plans add WooCommerce automation, bulk generation and premium templates.

Free

Everything you need to invoice customers and connect a WooCommerce store.

$0

Free forever

Start for free
  • Commercial invoices
  • Proforma invoices
  • Customer management
  • PDF invoice generation
  • Basic invoice templates
  • Payment tracking
  • Secure invoice delivery
  • WooCommerce store connection
  • Manual WooCommerce invoice generation
  • Recurring invoice schedules
  • REST API access
  • Webhooks

Monthly

All paid features, billed month to month. Cancel any time.

$9.99/ month

Billed monthly

Choose Monthly
  • Everything in Free, plus:
  • WooCommerce automatic invoice generation
  • WooCommerce bulk invoice generation
  • Historical WooCommerce invoice batches
  • Advanced invoice templates
  • Advanced delivery capabilities
Best value

Yearly

All paid features, billed once a year for less.

$69/ year

Billed annually
Works out to $5.75 a month, saving $50.88 a year

Choose Yearly
  • Everything in Free, plus:
  • WooCommerce automatic invoice generation
  • WooCommerce bulk invoice generation
  • Historical WooCommerce invoice batches
  • Advanced invoice templates
  • Advanced delivery capabilities

30-day money-back guarantee. If a paid plan isn't right for you, contact us within 30 days for a full refund.

Questions

Frequently asked questions

Can't find what you need? Contact our team and we'll get back to you.

It is an invoicing platform for organizations that work across countries. An organization holds memberships. Each legal entity owns its customers, numbering, and invoices.

For India-focused businesses

Your invoicing workflow, tailored for India.

LupinSync India Invoices is the invoicing product for businesses that mainly bill inside India. Global Invoices stays the product for cross-border work. Neither one replaces the other.

Explore India InvoicesDownload India Invoices

LupinSync India Invoices

GST invoicing for WooCommerce

  • GST invoices from WooCommerceIssue PDF tax invoices from orders, with HSN/SAC codes and a CGST/SGST or IGST split.
  • Financial-year numberingInvoice numbers stay sequential and aware of the Indian financial year.
  • Native WooCommerce fitWorks with HPOS and with both Classic checkout and the Checkout block.

Send your first invoice today

Create a free account in a minute. No card needed, and you can connect your WooCommerce store whenever you're ready.

Create free accountSign in