BahiBill — WooCommerce GST Invoice & Packing Slips

A WooCommerce GST invoice for every order

Indian buyers — especially businesses claiming input tax credit — expect a proper tax invoice, not an order email. BahiBill creates a WooCommerce GST invoice PDF as soon as an order is processing: your GSTIN and the buyer's, HSN or SAC code on every line, place of supply with its state code, reverse-charge flag and the total in words, in rupees and paise.

CGST, SGST or IGST — worked out for you

When the place of supply is in your own state, tax is shown as CGST + SGST (UTGST in union territories); otherwise it is IGST. Tax amounts come from the order's own tax lines, calculated in paise, so taxable value plus tax always equals the order total. An HSN-wise tax summary can be printed under the items.

• Store GSTIN checked for format, state code and check digit
• HSN/SAC on products and variations, with a store default and shipping SAC
• Numbering like NW/26-27/0101 with financial-year reset, never duplicated
• Invoices attached to order emails and downloadable from My Account

Your brand on every document (Pro)

The template designer adds your logo, accent colour, bank and UPI details, terms, signatory label and footer, and lets you choose which fields appear — SKU, phone, shipping address, payment method, customer note. Preview the design with your latest order before saving.

B2B sales, refunds and proformas (Pro)

Business buyers can enter their GSTIN at checkout — on the block or classic checkout — and an invalid number is rejected before the order is placed. Refunds get numbered credit notes that reference the original invoice with the correct tax split, and on-hold orders can be sent a proforma invoice.

Exports for your accountant (Pro)

Download a ZIP of invoice, credit-note or packing-slip PDFs for any date range, and a monthly GSTR-1-style CSV pack (B2B, B2CL, B2CS, credit notes, HSN summary and a sales register) built from issued invoices. Review the figures with your accountant before filing.

Every settings tab explained

All settings live under WooCommerce → PDF Invoices, and each tab has its own Save button. Store & GST holds your legal name, GSTIN (checked for format, state code and check digit), the invoice format — India GST, International or Automatic from your store country — the default HSN or SAC code, the SAC code for shipping lines, the paper size (A4 or US Letter) and the delete-data switch. Numbering & emails sets the prefix and suffix with placeholders such as {fy}, {fy_short}, {year}, {yy} and {month}, padding, the start number for stores moving from another system, the reset rule (never, every calendar year or every financial year from 1 April), the order statuses that create an invoice automatically and which emails get a PDF attached. HSN and SAC codes are entered on each product and variation under Product data.

• Template designer (Pro): logo, accent colour, visible fields, HSN-wise summary, terms, bank/UPI details, signatory and footer
• Checkout, credit notes & proforma (Pro): GSTIN field optional or required, credit-note and proforma number series
• Exports (Pro): ZIP of PDFs by date range and the monthly GSTR-1-style CSV pack
• In the free version the Pro tabs are visible but locked, and documents use the default design

How it works for customers and for your team

When an order reaches a status you chose (processing and completed by default), BahiBill reserves the next invoice number and the PDF goes out with the order email. Logged-in customers see an Invoice button on My Account → Orders and on the order page; guests receive their invoice by email. Your team gets an Invoice & documents box on every order with buttons for the invoice, packing slip and, in Pro, proforma and credit notes, an Invoice column on the orders list, and a bulk action that prints many invoices or packing slips into one PDF for the day’s dispatch. Download links only work for a logged-in shop manager or the logged-in customer who owns the order; a guessed or edited link returns an error.

Who BahiBill is for

BahiBill is written first for Indian WooCommerce stores: D2C brands shipping across states, wholesalers whose business buyers need a GSTIN on the invoice to claim input tax credit, and shops that hand monthly figures to an accountant. The automatic international format means a store outside India can use the same plugin for VAT or sales-tax invoices and packing slips, although that format was built but not covered by the automated tests.

Compatibility and requirements

BahiBill needs WordPress 6.4 or higher, WooCommerce 8.0 or higher (tested up to 11.2) and PHP 7.4 or higher (tested on 8.3). It declares compatibility with high-performance order storage and the cart and checkout blocks; the Pro GSTIN field uses WooCommerce’s Additional Checkout Fields API on the block checkout and a normal billing field on the classic checkout. PDFs are drawn by a bundled copy of the open-source dompdf engine with the DejaVu Sans font, so the rupee sign prints correctly; remote fetching and scripts inside the PDF engine are switched off. The ZIP exports need PHP’s zip extension. Multisite was not tested.

Honest limits

BahiBill does not create e-invoice IRP JSON — we could not verify it against the official schema, so it is not offered. The checkout does not check that a GSTIN’s state code matches the billing state, only its format, state code and check digit. GSTR-1-style CSVs are not certified against the GST portal; review them before filing. PDFs are generated when opened, so seller details and design follow your current settings, while numbers, dates, amounts and HSN codes stay as issued. Bulk printing is capped at 200 orders and a ZIP at 300 documents. Refunds entered as an amount only print one refund line without a tax split, because WooCommerce records no tax for them.