Fast Billing Software is the simple way to make GST invoices and POS bills, send them to customers, see who has paid, handle returns and credit notes, and keep light accounts — all in one place. It connects to Tally and other tools you already use, so nothing is entered twice.
Between typing out bills, getting the GST right and chasing customers for payment, your counter and accounts desk lose hours every week.
Every invoice means re-typing items, rates and customer details by hand, so the queue at the counter grows and mistakes creep in.
Working out HSN codes, CGST, SGST and rounding by hand leaves you unsure whether the bill is right until the returns are due.
You lose track of who still owes you and how much, so money sits unpaid until someone finds time to call and follow up.
Pick the customer and items and the bill is ready to print or share — no re-typing and no long queue at the counter.
Tax, HSN codes and rounding are worked out automatically, so every bill is correct and you stay ready for returns.
See exactly who owes you and send gentle reminders on WhatsApp, SMS and email, so payments come in without the chasing.
Sales, receipts, credit and debit notes are recorded as you go, so your accounts are always up to date and easy to check.
It gives your counter and your accounts desk one simple system to raise bills, get paid and stay GST-ready — whether you sell over the counter, to other businesses, or by project. Here's what makes it different.
HSN codes, CGST/SGST/IGST and rounding are worked out automatically, with amount in words and e-way / e-invoice ready — so every bill is correct without the manual maths.
Quick counter bills (POS) for walk-in customers and detailed corporate tax invoices for your business clients — from the same system, the same stock and the same accounts.
You only bill what you actually dispatched, and a built-in guard stops the same goods being billed twice. When a customer returns something, the credit note is raised for you.
See exactly who owes you and how much, send friendly reminders on WhatsApp, SMS and email, and record receipts and advances against bills — so money doesn't slip through.
It connects to Tally and other accounting, GST and hardware tools you already use, so your bills, receipts and vouchers flow across without anyone re-typing them.
Sell products by SKU, or bill by project and its resources (labour, machine, material) for construction, EPC, job-work and service firms — both are GST-compliant.
Fast Billing carries every sale through one controlled cycle, from a confirmed order or dispatch to a GST tax invoice, the payment against it, and the voucher in your accounts — with credit notes and follow-up tracked, not lost.
Everything starts with a confirmed order or a completed dispatch. You raise the tax invoice against it — party bill-to and ship-to, item lines with HSN codes, quantity and rate, taxable value, and CGST/SGST or IGST computed from your tax configuration and item/party tax rules. Other charges like freight and packing attach as charge heads, the total is rounded, and the amount is spelled out in words.
Domestic invoices print as a GST-compliant tax invoice; export variants apply zero-rated or LUT treatment. Every invoice is raised against its source dispatch or order, so what you bill always ties back to what you actually sold.
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Goods leave on a delivery challan or packing slip that accompanies them, carrying the data an e-way bill needs. That challan is the dispatch document; the tax invoice is raised against it later — two deliberately distinct documents, so movement and billing never get confused.
When goods come back on a sales return, an auto credit note is raised against the original dispatch, reversing the invoiced value and correcting the customer ledger. Debit notes recover extra charges or rate differences. Cancelling an invoice releases the dispatched quantity it consumed, and a used-quantity guard keeps the same quantity from being billed twice.
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A customer receipt is recorded against one or more invoices, with any on-account advance applied to later bills. Every receipt updates the outstanding and receivables position and posts a receipt voucher to your accounts — so the ledger and the money always agree.
Outstanding invoices surface as an ageing view, and payment follow-up alerts go out over SMS, email or WhatsApp before a bill turns into a bad debt. Payment modes and clearance are tracked, so you always know what has been collected and what is still due.
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Around invoicing sits the everyday finance an SME needs: account masters and a chart of accounts, manual voucher entry for journal, payment and receipt entries, supplier-bill approval before a purchase voucher posts, expense types and approval, C-Form tracking and budgets. It is light accounting that feeds your books, not a replacement for them.
Firms that bill by project instead of by SKU can raise a bill against a project and its bill-of-resources — labour, machine and material — on progress or resource consumption, producing a GST-compliant, amount-in-words project bill for construction, EPC, job-work and service work.
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Fast Billing ships with the dashboards and MIS a billing and accounts team actually runs on — the invoice register, pending-to-bill, party-wise GST, outstanding and follow-up — plus Dhruv AI, our own AI layer for the questions a fixed report can't answer.
The primary sales-billing register — every tax invoice by party, date and status, with GST and totals, so you can see exactly what was billed and to whom, on one screen.
Order-Acceptance versus Invoice reconciliation — what was ordered against what has been billed, so the pending-to-invoice backlog is visible before it slips.
GST captured per party from the tax configuration and GSTIN masters — the report you use to reconcile GSTR-1 returns against what you actually invoiced.
Open invoices by party with ageing — current, 30, 60 and 90-day buckets — so the receivables position and who owes what is never a mystery at month-end.
Overdue invoices flagged for follow-up, with SMS, email and WhatsApp reminders and a record of who was chased and when — so collection is a process, not a scramble.
Every credit note raised on a sales return and every debit note for charges or recovery, tied back to its dispatch and invoice — the ledger corrections in one clear list.
Vendor bills against POs and GRNs with their approval status — the accounts-payable control gate before a purchase voucher is posted to your accounts.
C-Forms issued and received against inter-state sales, tracked to their invoices — legacy CST support retained for older assessments, alongside budgets and balance-sheet heads.
Dhruv AI, our own AI engine, summarises your billing and receivables dashboards in plain language and answers questions like "which parties are most overdue this month?" as a safe, read-only query.
Fast Billing is one of 12 integrated Fast Technology products built on a single platform. It sits at the cash-in end of the cycle — consuming the orders and dispatches raised in CRM, ERP, Inventory and WMS, turning them into GST tax invoices and receipts, and feeding every voucher to your accounting. One item master, one customer master, zero re-keying.
The full superset. Order acceptances and dispatches raised in ERP become the source documents Billing raises tax invoices against.
The upstream. A won enquiry becomes an order acceptance in CRM — the confirmed sale Billing turns into an invoice and a receipt.
Stock left at dispatch. Billing never touches stock again — it attaches value to what Inventory already moved out, keeping billing financial-only.
The dispatch source. Delivery challans and picked dispatches from the warehouse are exactly what Billing raises the tax invoice against.
What gets made gets billed. Finished goods from Production flow through dispatch and become the invoice at the end of the make cycle.
Bill by project. A project and its bill-of-resources feed Billing's project-billing mode — progress and resource bills instead of SKU invoices.
We map your billing process first — how invoices are raised, how GST and HSN are set up, how payments are recorded and followed up, how it should post to your accounting, gap analysis. Then we configure Fast Billing to fit your accounts desk. Not the other way around.
Post go-live is not where we disappear. Dedicated support team, multiple channels, monthly review meetings, and patches issued on feedback. We treat support as part of the product.
A manufacturer billing against dispatch, a distributor pushing high volumes, a contractor billing by project and a retail counter all invoice differently. Fast Billing serves each with GST tax invoicing, the right documents and a clean sync to your accounting.
Raise GST tax invoices against a confirmed dispatch or order, with HSN, charges and amount in words — the billing front-end that feeds your accounting without re-keying what you made and shipped.
High-volume GST billing with delivery challans, credit and debit notes, and tight receivables follow-up — so invoices go out fast and outstanding never piles up unnoticed.
Bill by project and its bill-of-resources — labour, machine and material — on progress or resource consumption, producing a GST-compliant, amount-in-words project bill for EPC and job-work.
Counter billing with barcode and QR scanning, TSC thermal printers and GST-compliant bills — fast at the till and still posting cleanly to your accounts at the back office.
Export-invoice variants alongside domestic tax invoices — zero-rated or LUT treatment, export documentation and the same clean Accounts sync, for firms selling to customers worldwide.
Service firms billing by engagement or milestone rather than by SKU — project and resource bills, receipts and light accounts, all GST-compliant and posting straight to your accounts.
Fast Billing is the operational front-end that feeds your book of record. Confirmed invoices post to Tally as sales, receipt and purchase vouchers with GST; invoice data drives GST returns, e-way bills and e-invoice QR; barcode, thermal printers and POS scanners speed the counter; and WhatsApp, email and Dhruv AI keep customers and the accounts desk informed.
See all integrationsSee how Fast Billing handles your exact billing flow. Live demo, your GST setup, your invoice format, your Accounts sync, your questions. No generic slideshow.
