Iraj Core Billing · for any business
GST billing that gets you paid sooner.
Quotes, invoices, credit notes, UPI and online payments, reminders and reports — built for the way Indian businesses bill. Use it on its own, or inside Coaching and Audits.
- Numbers never skip; issued invoices never change
- Customers pay by UPI QR or online, into your account
- Every report opens in Excel
Who it's for
Any business that sends a bill.
Billing is a complete product on its own. It's also the billing built into Iraj's other products, so your books stay in one place.
Shops and distributors
GST invoices with HSN codes, place of supply and a UPI QR.
Freelancers and consultants
Quotes that turn into invoices, and a link clients pay from.
Agencies
Several business profiles, retainers in instalments, reminders.
Service businesses
SAC codes, late fees, and who owes you by how late.
Institutes
Inside Coaching: fees, instalments and receipts per student.
Audit firms
Inside Audits: bill audit fees from the same workspace.
From quote to paid
Every step of a bill, in one place.
No retyping between a quote, an invoice and your books. Each step picks up where the last one left off.
- 01
Quote
Sent, then accepted or declined with a note. Expired by its valid-until date.
- 02
Invoice
Converted from the quote in one click. Issuing gives it the next number and freezes every detail.
- 03
Shared
A private link the customer opens without an account — with your UPI QR and a Pay online button.
- 04
Paid
Online payments record themselves; cash, cheque or bank transfers in two clicks. Receipts follow.
- 05
Corrected
Never edited after issue. A credit note reduces it, and refunds what was overpaid.
- 06
Reported
Into the sales register, the GST summary and who owes you — ready to export.
What's inside
Everything a business bills with.
Built to the depth of a dedicated invoicing tool, because it is one.
Every document you send
- Quotes, proforma invoices, invoices, credit notes
- A quote becomes an invoice in one click
- Gap-free numbers by financial year: INV/2026-27/0001
- Issued invoices never change — corrections are credit notes
GST done properly
- GST, a simple tax, or none — your choice
- CGST and SGST, or IGST, from the place of supply
- HSN/SAC on every line
- A GST summary with the figures GSTR-1 and 3B ask for
Get paid sooner
- A UPI QR on every invoice
- A link customers open and pay online, into your Razorpay
- Instalments, automatic reminders, late fees
- Coupons and discounts
In your name
- Classic, Modern, Minimal or an 80 mm receipt — styled your way
- PDF and print, with your logo and signature
- Several business profiles under one login
- Your bank and UPI details on every bill
Books that add up
- Expenses and a ledger of money in and out
- Sales register, and who owes you by how late
- Income against expenses, month by month
- Every report opens cleanly in Excel
Shaped to your business
Your billing, set up your way.
A guided setup asks how you bill before you start. Nothing is decided on your behalf, and anything can be changed later.
- Tax
- GST with CGST, SGST and IGST; one simple tax like VAT; or none if you're not registered.
- Documents
- Switch quotes, proforma invoices and credit notes on or off. Turn on line discounts, extra charges, round-off and due dates only if you use them.
- Numbering
- Your own prefix and padding per document, resetting each April: INV/2026-27/0001.
- Look
- Accent colour, fonts, which columns show, your own wording — 'Student' instead of 'Bill to' — and footer text.
- Businesses
- Several legal entities or branches, each with its own GSTIN, bank account, UPI ID, logo and signature.
- Defaults
- Payment terms, notes and terms and conditions filled in on every new document.
Better together
The billing inside every Iraj product.
Add another Iraj product and it bills through the Billing you already know — one set of books, one GST summary.
CoachingBilling
Each student becomes a customer. Fees go out as GST invoices with instalments, parents pay online from the app, and reminders and late fees run themselves.
Course storeBilling
Every course or test series sold on your website gets its own GST invoice, with any coupon as its discount.
AuditsBilling
Audit firms raise GST bills for their fees in the same workspace they run audits in.
Questions
What businesses ask about Billing.
Are the invoices GST-compliant?
Yes. They carry your GSTIN, the customer's, the place of supply, HSN/SAC per line, and CGST and SGST or IGST worked out for you. The GST summary gives the figures GSTR-1 and 3B ask for. E-invoicing (IRN) and e-way bills aren't built yet.
We aren't GST-registered. Can we still use it?
Yes. Choose no tax, or one simple tax, and GST fields never appear. You can switch later; it applies to new documents.
Do our customers need an account to pay?
No. They open a private link to the invoice and pay by UPI QR or online. You see when it's paid.
Where does the money go?
Straight into your own Razorpay account — Iraj never holds it and takes no cut. Cash, bank and cheque payments you record yourself.
Can we bill from more than one business?
Yes. Add a business profile for each legal entity or branch, each with its own GSTIN, bank details, logo and signature.
Can we move from Excel or Tally?
Your accountant keeps working in what they know: every report downloads as a CSV that opens in Excel. Talk to us about bringing your customers and items across.
Do you do recurring invoices or other currencies?
Not yet. Instalment plans cover most repeat billing today; recurring invoices and multi-currency are on the list.
See your own invoice on Iraj Core Billing.
We'll set up your business details, your numbering and your template, and send you a real invoice you can pay.