Invoice, get paid, and close the books on a ledger nobody can edit.
Tax invoices with CGST and SGST or IGST worked out for you, payment links through your own gateway, bank statements matched by your own rules, and a double-entry ledger that can only be added to, so the P&L is right on the day you look. Hosted in India.
Most small-business books are right until somebody checks.
The invoice changed after it was sent.
Same number, new amount, no reason and no trail. The customer has one version, the books have another, and the auditor finds both.
The bank and the books disagree on the 28th.
Every month-end starts with a statement printout and a highlighter. Three days later, one line still doesn't match.
Nobody knows who has owed what, since when.
Without ages on the money, the friendly customer gets chased and the 90-day one gets another month.
SK Billing puts every invoice, payment and bank line on one ledger that can only be added to.
Issue. Collect. Match. Close.
An invoice posts its own journal the moment it is issued. A payment by link or at the counter settles it and posts again. The bank statement is matched to both. The reports are simply the ledger, read back.
Tax worked out from where you sell and who you sell to, stamped on the document, a gapless number, and a PDF with the tax QR.
A link through your own gateway account, or a payment recorded at the counter. Advances are held and allocated with a click.
Import the statement as CSV or Excel. Your rules match descriptions, references and amounts to invoices and bills.
P&L, balance sheet and trial balance from the same journals, and a period you can lock when the month is done.
No borrowed logos. Rules you can test on the demo.
SK Billing 6.0 shipped in October 2026. These are properties of the system, not promises in a brochure; ask us to show any of them on the call.
The database itself rejects any change or delete on a posted journal. A mistake is corrected by a dated reversal with a reason code, pointing at what it reverses.
Each journal carries a SHA-256 hash of the one before it and its own lines. Change a row behind the system's back and the chain breaks where you did it.
Series numbers are gapless. A voided invoice keeps its number with the reason, so the sequence your auditor sees has no holes.
Every amount and tax line is computed in exact decimal arithmetic, never floating point. Totals add up the same way on the invoice, the journal and the report.
From the estimate to the closed month.
A document can change only as much as is honest.
Estimates, invoices, credit and debit notes and delivery challans share one numbering rule and one life: a draft you edit freely, an issued document that changes only by reversing and reposting under a new revision, and a locked one, once an IRN is stamped, the month is closed or a payment is allocated, that is corrected only by a credit or debit note. An estimate becomes the invoice in one click.
- PDF with the tax QR, sent by email or on WhatsApp
- Currency, tax treatment and branch stamped when the document is made, never re-derived
- Void keeps the number and asks for the reason
CGST and SGST, or IGST, decided by where you supply.
SK Billing compares your branch's state with the customer's place of supply and splits the tax for you: 9% and 9% inside the state, one 18% IGST line across it, and zero-rated for exports and SEZ supplies without payment of tax. HSN or SAC codes sit on every line, and on the composition scheme the document prints as a bill of supply with the statutory line. On Growth, the e-invoice JSON goes to the portal and the IRN comes back onto the invoice.
- Place of supply decides CGST and SGST, or IGST, line by line
- HSN and SAC codes on every line; bill of supply on the composition scheme
- Growth: e-invoice JSON for the portal, IRN and signed QR stamped back, with the 30-day window shown
Pick the customer. Watch the tax lines change.
An invoice for INR 10,000 of services from a branch in Tamil Nadu. Choose who it is for.
Paid by link, through your own gateway, with nothing taken by us.
Connect your own Razorpay or Stripe account once. Every invoice can carry a payment link; when the customer pays, the invoice is settled, the journal is posted and the receipt goes out. Payments in cash, card or UPI at the counter are recorded the same way. A deposit taken before the work is held as an advance and allocated to one or more invoices with a click.
- Softknack takes no cut of payments; you pay only your gateway's own fee
- Partial payments, overpayments and refunds kept straight on the customer's balance
- Invoices, reminders and receipts on WhatsApp at INR 0.15 a message, from the wallet
Who owes what, and for how long, without a spreadsheet.
Every customer and vendor has a live statement: opening balance, each invoice, payment and credit note, and the running balance after each. The aging view sorts what is owed into 0–30, 31–60, 61–90 and over 90 days, so the oldest money is chased first and the friendly customer who paid yesterday is left alone.
- Statements as PDF, sent by email from the customer's record
- Aging for receivables and payables, by customer, vendor or branch
- Balances shown on the customer's record in SK CRM
What you owe, to whom, and when it falls due.
Raise a purchase order to a vendor, record their bill when it arrives, and pay it in full or in parts. Bills post to payables and to the right expense or asset account, with the tax you can claim on its own line. Payables age the same way receivables do, so nothing is paid late by accident or early by habit.
- Purchase order to bill to payment, each with its own number
- Input GST kept apart from the expense, ready for your return
- Manual journals and sub-accounts in the chart of accounts
Month-end matching in minutes, by your own rules.
Upload the statement as CSV or Excel; the columns are mapped for you, from date and description to withdrawal, deposit and reference. Rules you set, in the order you set them, match lines by words in the description, references and amounts to open invoices and bills. A line no rule catches is matched by hand or posted straight to an expense, and the book balance and the bank balance end the month agreeing.
- Up to 100 rules, run in priority order
- Each bank account tied to its own ledger account
- Statements come in as a file you import, CSV or Excel
Mistakes are reversed in the open, never rubbed out.
Issuing an invoice debits receivables and credits sales and the tax you owe. A payment debits the bank and credits receivables. An advance sits in its own liability until it is allocated. Every one of those journals is append-only: the database refuses edits and deletes, corrections are dated reversals with a reason code, and each entry is chained to the one before by its hash, so a change made outside the system shows up where it was made. It is the kind of edit log the MCA audit-trail rule asks for, enforced where nobody can switch it off.
- Five-root chart of accounts: assets, liabilities, equity, revenue, expenses
- Hash check on the journal list: verified, or the first broken link
- Reversals point at what they reverse, with who, when and why
The reports are the ledger, read back. The month can be shut.
Profit and loss, balance sheet and trial balance on every plan, for any date range, straight from the journals: no export, no re-keying, no waiting for month-end. On Growth and Scale the GSTR-1 tables export straight from the same invoices. On Scale, each month closes with a checklist and is then locked, so nothing is posted into a period your accountant has already signed.
- P&L, balance sheet and trial balance on every plan
- GSTR-1 export on Growth: B2B, B2C small, credit and debit notes, exports, HSN summary
- Closing checklist and period lock on Scale
Businesses that invoice every day and close every month.
Built alongside the Softknack verticals, and ready today for service businesses and for traders who do not yet need e-way bills.
Consultants, agencies, clinics and studios invoicing for time and work, with SAC codes on every line.
With SK Salon: checkout invoices on the same ledger, and tips split to stylists by your rules.
With SK Works: advances, stage bills and the vendor bills behind each job.
With SK Fleet: trip invoices and corporate statements, matched to the bank.
Goods sellers who do not need e-way bills or one-click IRN yet; both are coming soon.
What is not built yet, said plainly.
Nothing on this list is sold as included today. We will tell you before any of it ships and before anything about it is priced.
Today: e-invoice JSON export and the IRN stamped back, on Growth.
Invoices that raise themselves on a schedule.
Your customers see their invoices, statements and pay, signed in.
Payment reminders sent on their own, by age of the invoice.
A seat for your outside accountant that does not count as a user.
Questions about your numbers, reminder drafts, bill scanning and bank-match suggestions, priced by use when they return.
Hosted in India. Your books, kept the way the law keeps them.
Your organisation's boundary is enforced by the database on every query, set from the verified login. Financial records are kept for statutory retention, eight years and more, even after a customer leaves; a person's contact details can be erased under the DPDP Act while the tax records that name them stay as the law requires.
- Row-level isolation: one organisation can never read another's books
- Idempotent writes: a double-click or a retried request never creates a second invoice or payment
- Every change logged: who issued, revised, voided, allocated or reversed, and why
- Statutory records locked: journals and tax records outlive contact erasure
The ledger the other products post to.
SK Salon checkouts, SK Works milestones and SK Fleet trips are invoiced through it. SK CRM shows each customer's balance and lifetime value from it. SK Drive keeps its PDFs. Your gateway settles its invoices.
Invoices that SK Salon, SK Works and SK Fleet create are covered by those products' own plans and never count toward your SK Billing invoice limit.
One price per organisation. Not per invoice line.
Starter covers selling and getting paid. Growth adds buying, banking, e-invoice JSON and GSTR-1. Scale adds the controls a multi-branch finance team needs. Before GST; 15 days free to start.
A month each, per organisation. Annual is pay 10 months, use 12. Add users, branches or invoice packs without moving up; past a point the next tier is cheaper.
Before the demo.
What does SK Billing cost?
Can an invoice be changed after it is sent?
Does it do GST e-invoicing?
Do you take a cut of payments?
We already use SK Salon, SK Works or SK Fleet. Do we need this?
Can we bring our history from our current software?
Where is our data stored?
Let's run last month's invoices through SK Billing.
Thirty minutes, no slides. Send us last month's invoices and one bank statement in any format. We load them before the call, then issue a GST invoice, take a payment by link, match the bank lines and pull the P&L, with you.
- Your customers, items and opening balances loaded
- A GST invoice issued with the right tax lines and its PDF
- A payment taken by link, allocated, and the invoice locked
- Your own bank statement matched line by line
Book a 30-min live demo
Three fields, then pick a time. India Standard Time.
You're booked.
A product specialist will run the demo. We'll confirm on WhatsApp and send a calendar invite. One ask: send us last month's invoices and a bank statement in any format and we'll load them before the call.
Prefer to talk now? WhatsApp us +91 89258 78162 · Mon–Sat 9am–7pm IST