Onyx Bills

Features

Everything from first quote to final balance sheet.

Sell

Quote, invoice and collect — with the right tax chosen for you.

Sales invoices

Line discounts, tax-inclusive pricing, other charges, transport details and round-off, with status tracking from Draft to Paid.

Automatic tax type

CGST + SGST or IGST is picked from your state and the shipping state — no manual switching.

Quotations to invoices

Send a quote with a validity date, track acceptance, then convert it to an invoice in one step.

Proforma invoices

Bill before goods ship, then convert once payment is confirmed.

Credit notes

Issue against a posted invoice to reduce the balance and return tracked stock.

Bulk invoice batches

Bill one product or service to many contacts at once, each with its own voucher number.

e-Way Bills

Generate e-Way Bills as part of the billing flow for movement of goods.

Buy & pay

Record what you buy, what you owe and what you have paid.

Purchase invoices

Every received line creates a new FIFO stock lot, so costs follow the stock.

Debit notes

Return goods to a vendor, reduce what you owe and deduct stock in one entry.

Payments received and made

Cash, bank, cheque, UPI, card or online transfer — applied against outstanding bills.

Expenses

Office costs, utilities and other outgoings that are not tied to a purchase.

Contra entries

Move money between cash and bank accounts and between banks.

Customers and vendors

One contact list with groups, opening balances, credit limits and a running ledger.

Stock

Know what you have, what it cost and when it expires.

Products and services

Nested categories, product types, units of measure and unit-conversion rules such as 1 Box = 10 Pcs.

Lot and batch tracking

FIFO lots draw down the oldest stock first, with a source trail for every lot.

Barcodes

Generate unique barcodes in Code128, QR or EAN-13 and print them on sticker templates.

Near-expiry reports

See expired stock and what expires in 30, 60 or 90 days, so you sell the oldest first.

Valuation and reorder alerts

Stock value at cost and retail, plus low-stock and out-of-stock alerts against your reorder levels.

Bulk CSV import

Bring in customers, vendors and products from a spreadsheet, with an import history.

Books & reports

Double-entry accounting that stays in step with every invoice and payment.

Chart of accounts

Seventeen ready-made account groups across assets, liabilities, income, expenses and equity.

Journal entries

Manual vouchers that only post when debit equals credit.

Profit & Loss and Day Book

A P&L that leaves tax out of revenue and cost, and every voucher in one chronological list.

Balance sheet and ageing

Trial balance, balance sheet and receivables and payables ageing as of any date.

GST reports

GSTR-1 and GSTR-3B summaries with HSN/SAC and tax-slab breakdowns.

Bank reconciliation

Book against passbook balances, uncleared cheques and deposits, and detailed statements.

Control & setup

Decide who sees what, keep a record of every change, and make the paperwork yours.

Up to 3 companies, one subscription

Create and switch between up to three companies under a single Onyx Bills subscription.

Roles and menu access

Administrator, User and Accounts roles, with each sidebar menu shown or hidden per role. Accounts is made for finance and reports.

Audit trail

Who created, changed, cancelled or deleted which voucher, with time, IP address and severity.

Login history

A log of every sign-in attempt against your company, successful or not.

Print layouts

A4, A5, A6 and 80 mm thermal paper, named copies such as Original for Recipient, and your logo and terms.

Numbering and financial years

Voucher prefixes and suffixes, numbering that resets yearly, and years you can close once final.

Three languages

Switch the interface between English, ไทย and Tiếng Việt.

Multiple companies

Create up to 3 companies under 1 subscription.

Many owners run more than one business. With Onyx Bills you do not need a separate subscription for each of them.

Up to three companies on a single subscription
One plan to manage and one renewal date
Also included with Onyx Combo

Start with Onyx Bills

Three companies, one subscription

Whether it is a second trading business, a branch kept on separate books or a new venture, create it under the subscription you already have.

GST & VAT

The right tax on every invoice.

In India, Onyx Bills picks CGST + SGST or IGST from your state and the shipping state, and gives GSTR-1 and GSTR-3B summaries with HSN/SAC and tax-slab breakdowns. In Thailand and Vietnam it applies flat-rate VAT on invoices and purchases and keeps tax out of your revenue and cost in the Profit & Loss.

e-Way Bills for India are part of the application.

Read: GST invoice guide →

India GST

Onyx Bills for India →

Thailand VAT

Onyx Bills for Thailand →

Vietnam VAT

Onyx Bills for Vietnam →

Reports

The reports your accountant will ask for.

Every list and report exports to PDF and Excel.

Day Book
Profit & Loss
Balance Sheet
Trial Balance
Receivables & Payables Ageing
GST Report
Bank Reconciliation
Itemized Sales
Itemized Purchases
Sales Performance
Stock Valuation
Near-Expiry Stock
Stock Movement
Audit Trail

Pricing

Plans for India

GST and VAT billing with double-entry accounting and an inventory module.

₹600 ₹6,000 / month / year

or ₹6,000 a year About ₹500 a month

Invoices, Quotations, Proforma, Credit and Debit notes
GST & VAT Sales/Purchase Invoicing
E-Way Bills (India), E-Invoicing Ready and built-in inventory
Double Entry Accounts & Ledgers
Customer & Vendor Management
Recurring Schedule
Bulk Invoice Generation
Financial Reports & P&L Statements
Up to 3 companies under one subscription
Reports Management

Start 14-Day Free Trial Choose Onyx Bills

Onyx Inventory

Stock and manufacturing for Manufacturing Plants that buy, assemble and sell.

₹700 ₹7,000 / month / year

or ₹7,000 a year About ₹583 a month

Standalone Inventory & MFG Control
Stock In, Stock Out, Opening Stock
Bill of materials (BOM) & Manufacturing Assembly
Reorder Level & Stock Alerts
Direct Master Data Management
Approval workflow for masters and entries
Reports Management

Start 14-Day Free Trial Choose Onyx Inventory

Best for Manufacturing Plants

Onyx Combo

Billing and manufacturing inventory together, with Combo Sync.

₹1,000 ₹10,000 / month / year

or ₹10,000 a year About ₹833 a month

Saves ₹300 a month vs. buying both separately Saves ₹3,000 a year vs. buying both separately

Everything in Onyx Bills and Onyx Inventory
Automated Master Data Sync (OnyxBills -> Inventory)
Real-time Manufacturing Stock Reverse Sync
Up to 3 companies under one subscription
One team, one set of numbers
Reports Management

Start 14-Day Free Trial Choose Onyx Combo

Prices shown in INR for India, plus applicable taxes.

Onyx Bills FAQs

What can I do with Onyx Bills?

Create sales and purchase invoices, quotations, proforma invoices, credit and debit notes, record payments and expenses, track stock, and run double-entry accounting reports such as Profit & Loss, Balance Sheet, Trial Balance and ageing.

Can I create more than one company?

Yes. You can create up to three companies under one Onyx Bills subscription.

Does Onyx Bills support GST?

Yes. For India it chooses CGST + SGST or IGST from the states on the invoice and gives GSTR-1 and GSTR-3B summaries with HSN/SAC and tax-slab breakdowns.

Does Onyx Bills handle VAT as well as GST?

Yes. Onyx Bills applies flat-rate VAT on invoices and purchases, and the interface can be switched to Thai or Vietnamese.

Does Onyx Bills include inventory?

Yes. It has a built-in inventory module with FIFO lots, barcodes, unit conversions, near-expiry reports and reorder alerts. For manufacturing with bill of materials, see Onyx Inventory or Onyx Combo.

Can I control what my team can see?

Yes. Administrator, User and Accounts roles let you show or hide each menu, and an audit trail records who created, changed, cancelled or deleted a voucher.

Put billing, stock and books on one page.

Create your account, or message us and we will help set up your first company.

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Billing and accounting software that keeps your books balanced.