Tax invoices in the Gazette format, straight from your books.
Connect Xero, QuickBooks, Zoho Books or Odoo, or upload a spreadsheet. TaxFlow checks every invoice, gives it the next serial number and lays out both TINs and 18% VAT the way the Gazette asks.
- No card needed
- Read-only access to your books
- Cancel any time
Tax invoice no.
Issued on download
Date of invoice
10/05/2026
_________
Lotus Lane Designs (Pvt) Ltd
_________
Kelani Spice Traders
Sample with fictional businesses and TINs.
01 / 05
Connect once.
Sign in with Xero, QuickBooks or Zoho Books, add Odoo or a Google Sheet, or upload a spreadsheet. TaxFlow reads your invoices and customers; nothing to retype.
Company
Lotus Lane Designs
TIN 123456789
02 / 05
Your invoices, synced.
Every invoice appears in one list with the customer, date and amount straight from your books.
Invoices
Synced from XeroBlue Lagoon Tours
INV-0043 · 10/01/2026
Rs 84,500.00
Hill Country Tea Co.
INV-0044 · 10/02/2026
Rs 126,000.00
Galle Fort Crafts
INV-0045 · 10/03/2026
Rs 42,750.00
Coral Reef Designs
INV-0046 · 10/04/2026
Rs 310,200.00
Kelani Spice Traders
INV-0047 · 10/05/2026
Rs 199,999.50
Sample data.
03 / 05
Checked before you issue.
TaxFlow checks the fields the Gazette asks for, and tells you exactly what is missing, such as a purchaser TIN.
Before you issue
Kelani Spice Traders · INV-0047
- Supplier TIN on file
- Invoice and supply dates
- Line values and 18% VAT
- Serial ready to issue
- Purchaser TIN missingAdd TIN
04 / 05
Issued, numbered, locked.
Each tax invoice gets the next serial in the YYMMM_QQQQ_XXXXX format, locked for good, with an original and a duplicate.
Serial register
Branch MAIN05 / 05
Every client, one register.
Accounting firms run the same flow for every client, with staff seeing only the clients they handle.
All clients, October
0 of 5 doneSample practice view.
What changed
Every VAT tax invoice now follows one layout.
Gazette Extraordinary No. 2481/22 sets the fields, their order and their format. Here is each one, and where TaxFlow gets it from.
Source: Gazette Extraordinary No. 2481/22, Inland Revenue Department of Sri Lanka. The start date was moved to 1 October 2026 by a later Gazette; confirm the latest notice with the IRD.
Features
Built for Sri Lankan VAT invoices, and nothing else.
TaxFlow does one job: turning the invoices you already have into correct tax invoices.
Serial numbers that stay in order
TaxFlow issues each YYMMM_QQQQ_XXXXX serial and locks it, per branch. No gaps, no duplicates.
TINs from your contacts
Supplier and purchaser TINs come from your settings and contacts. Missing a purchaser's TIN? We flag it before you issue.
VAT to the cent
Value, 18% VAT and total are worked out from your invoice lines and shown in LKR to two decimals.
Original and duplicate
Print the original for your buyer and a duplicate for your files, both from the same issued record.
Every invoice on record
Find, re-print or send any tax invoice, credit note or debit note you have issued, whenever your auditor asks.
Read-only and private
TaxFlow only reads your books. Access tokens and bank details are encrypted with AES-256. Disconnect any time.
For accounting and tax firms
Every client’s tax invoices, in one register.
Connect each client's Xero or QuickBooks once. Issue, check and archive tax invoices for all of them.
- Each client keeps its own TIN, logo, bank details and serial sequence
- Connect several Xero organisations in one sign-in
- A needs-attention list: missing TINs, expired connections, invoices to fix
- Staff access by client, and a white-label portal for your clients
All clients, October
0 of 5 doneSample practice view.
Pricing
Priced in rupees. Start free.
Pay monthly, or yearly and get two months free.
Free
Try it on real invoices.
Rs 0
Free for as long as you like
- 1 company, 1 user
- 2 customers, 5 tax invoices each per month
- Xero, QuickBooks or spreadsheet upload
- Gazette checks, original and duplicate
- "Prepared with TaxFlow" footer line
Pro
For most VAT-registered businesses.
Rs 1,290
/ month
- Unlimited customers and invoices
- Credit and debit notes
- Email delivery and bulk download
- Zoho Books, Odoo and Google Sheets
- Sinhala and Tamil field labels
- Filing calendar
- No TaxFlow footer, 2 users
Business
For branches and finance teams.
Rs 3,290
/ month
- Everything in Pro
- Branch serial codes
- Approvals, auto-issue and auto-send
- WhatsApp sending from your own number
- Payment links, reminders and receivables
- VAT Return Pack
- IRD e-invoice sync, test mode today
- API, webhooks and audit log, 5 users
Practice
For accounting and tax firms.
Rs 790
per active client / month
- Pro features for every client
- Rs 690 per client above 50, minimum 5
- Unlimited staff, access by client
- One register across all clients
- White-label client portal
- Business features: + Rs 1,000 per client
TaxFlow Personal
Your own income tax return, computed free.
Answer a short wizard, enter each income source and what was already deducted, and see your tax, instalments and every IRD deadline for the year of assessment. A Filer pass (Rs 4,900 a year, or Rs 490 a month) adds the cage-by-cage return pack, Schedule 7 CSV and evidence bundle; Filer Plus (Rs 9,900) covers business, partnership and other income. Practices prepare client returns from Rs 1,900 each.
Prices in Sri Lankan rupees, paid securely through PayHere. IRD e-invoice sync runs in test mode until the Inland Revenue Department opens its e-invoicing system to software providers.
Questions
What people ask before they start.
TaxFlow lays out every tax invoice to the fields and format in Gazette Extraordinary No. 2481/22 and checks each one before it is issued. The details on it, such as TINs and amounts, come from your own books, so you stay responsible for them. We suggest your accountant looks over your first few invoices.
The Gazette 2481/22 layout applies to VAT tax invoices from 1 October 2026, after the start date was moved by a later Gazette. Check the latest notice from the Inland Revenue Department or ask your tax advisor.
No. TaxFlow also works with Zoho Books, Odoo and Google Sheets on Pro, and anyone can upload a CSV or Excel file using our template.
No. TaxFlow only reads your invoices and customers. If you correct a customer TIN or address in TaxFlow, the correction is kept in TaxFlow and your books stay as they are.
Connections use each provider’s official sign-in with read-only access. Access tokens and bank details are encrypted with AES-256, and you can turn on two-step verification. Business and Practice plans also keep an audit log of every action. We never sell your data.
Yes, on the Business plan. You connect your own WhatsApp Business number, and TaxFlow sends the PDF with your approved message template, plus payment reminders if you want them.
Everything you have issued stays available to view and re-print. To issue more tax invoices that month, upgrade to Pro, or wait for the next month.
Yes. On Pro and Business you can invite your accountant to your company. Accounting firms can also use a Practice workspace to manage all their clients, with a branded portal where clients download their invoices.
Plans are billed in rupees through PayHere, monthly or yearly (Practice is billed monthly for active clients). You can cancel any time from Plan and billing, and your plan stays active until the end of the period you paid for.
Talk to a person
Questions about your invoices, or setting up a firm?
Message us on WhatsApp or email and the TaxFlow team will get back to you.
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