If you run a small or medium business in Oman, Fawtara, Oman’s national e-invoicing system, is coming to you in 2027. Under Decision No. 189/2026, VAT-registered businesses with annual supplies of OMR 5 million or less must issue structured electronic invoices from 1 October 2027.
For many SMEs, this is a bigger change than for large companies. Large businesses usually have ERP systems and finance teams. Smaller businesses often invoice from spreadsheets, basic accounting software or a POS that wasn’t built for e-invoicing.
The good news: you have time, if you start planning now. This guide explains what’s required, your options, what it costs, and a simple month-by-month plan.
Key Takeaways
SMEs with annual supplies of OMR 5 million or less must comply from 1 October 2027.
The earlier “Phase 3: August 2027” date no longer applies; Decision 189/2026 replaced it.
Invoices must be issued in PINT OM format through an accredited service provider.
Spreadsheet and many basic accounting tools won’t be enough on their own.
Starting in early 2027 leaves enough time to choose a solution, clean data and test.
What Happened to Fawtara “Phase 3”?
Oman originally announced a four-phase rollout, with all remaining VAT-registered businesses (mainly SMEs) due in August 2027. Many articles still show that date.
Decision No. 189/2026, issued on 9 August 2026, replaced the phases with two legal dates:
Annual supplies | Compulsory from |
|---|---|
Above OMR 5 million | 1 April 2027 |
OMR 5 million or below | 1 October 2027 |
So if you were planning for “Phase 3 in August 2027,” your new date is 1 October 2027. That’s about two extra months, not a reason to wait.
Who Is Included?
You’re in the 1 October 2027 group if you are:
VAT-registered in Oman, and
Your annual supplies are OMR 5 million or less
Businesses that aren’t VAT-registered are currently outside the mandate. If you’re close to the OMR 5 million line, confirm with the Oman Tax Authority (OTA) which date applies to you.
What Fawtara Requires
Structured e-invoices: invoices created as data in Oman’s PINT OM format, not just PDFs or printed bills
An accredited service provider: every invoice passes through a provider accredited by the OTA, which validates it and exchanges it over the Peppol network
Tax reporting: invoice tax data reaches the OTA through the provider
Credit notes linked to original invoices
Receiving e-invoices from your own suppliers
Check OTA guidance for exactly which of your transactions are in scope.
Why Many SMEs Aren’t Ready Yet
Current setup | Ready for Fawtara? |
|---|---|
Handwritten or Word invoices | No |
Excel spreadsheets | No, not on their own |
Basic accounting software | Maybe: check whether your vendor will add Fawtara support |
POS system | Maybe: check with your POS provider |
ERP (ERPNext, Odoo and others) | Yes, with a Fawtara integration |
The most important question to ask your current software provider is:
“Will your system support Oman’s Fawtara e-invoicing, including PINT OM and connection to an accredited service provider, before 1 October 2027?”
If the answer is vague, plan an alternative.
Your Options
Option 1: Upgrade your current software
If your accounting or POS vendor is adding Fawtara support, this may be the simplest route. Ask for a firm date and a test before mid-2027.
Best for: businesses happy with their current software, if the vendor commits.
Option 2: Use a service provider’s own portal
Some providers offer online portals where you can create and send invoices directly.
Best for: very small businesses with low invoice volumes.
Watch out for: invoices typed twice (once in your books, once in the portal), which leads to mismatches.
Option 3: Move to an ERP with Fawtara integration
An ERP like ERPNext or Odoo connects invoicing, stock, accounts and payroll, and can be linked to your accredited provider so invoices go out automatically.
Best for: growing SMEs that have outgrown spreadsheets or need inventory, multiple branches or better reporting.
See Fawtara for ERPNext and Odoo users and ERPNext vs Odoo.
Upgrade current software | Provider portal | ERP with integration | |
|---|---|---|---|
Setup effort | Low (if supported) | Low | Medium |
Double entry | No | Often yes | No |
Inventory and accounts | Depends | No | Yes |
Grows with you | Depends | Limited | Yes |
What Will It Cost?
Costs depend on the route you choose. Budget for:
Accredited service provider fees (often per invoice or subscription)
Software upgrade or new system costs
Setup and integration work
Data cleanup: customer VAT numbers, addresses and item tax categories
Staff training
For ERPNext, there are no licence fees, so costs mainly come from setup, hosting and support. Waiting until the last few months usually costs more, as providers and implementers get busy.
Month-by-Month Plan to 1 October 2027
When | What to do |
|---|---|
November–December 2026 | Confirm you’re VAT-registered and below OMR 5 million. Ask your software provider about Fawtara support. |
January–February 2027 | Choose your route: upgrade, portal or ERP. Shortlist accredited service providers. |
March–April 2027 | Appoint your provider. Start data cleanup: customer VAT numbers, addresses, item tax categories. |
May–June 2027 | Set up and connect your system. Train staff. |
July–August 2027 | Test every invoice type: standard, zero-rated, exempt, discounts, credit notes. Fix errors. |
September 2027 | Go live early if possible (voluntary adoption) and monitor daily. |
1 October 2027 | Fawtara compulsory. |
Large businesses go live on 1 April 2027, and many will compete for providers and implementers in early 2027. Starting your planning now means you won’t be waiting in line.
SME Readiness Checklist
Confirm your obligation
VAT registration confirmed
Annual supplies checked against OMR 5 million
Your date confirmed: 1 October 2027
Choose your solution
Current software provider asked about Fawtara support
Route chosen: upgrade, portal or ERP
Accredited service provider shortlisted and appointed
Clean your data
Customer VAT numbers, legal names and addresses complete
Items have correct VAT categories
Invoice numbering is unique and sequential
Credit notes always linked to original invoices
Test and go live
All invoice types tested
Staff trained
Process for rejected invoices agreed
Live before 1 October 2027
Common SME Mistakes
Planning for the old date. August 2027 no longer applies; 1 October 2027 is your date.
Waiting for the deadline. Providers and implementers will be busy after large businesses go live in April.
Assuming your software will be updated. Ask your vendor directly, and get a date.
Typing invoices twice. Separate portals and accounting systems quickly fall out of sync.
Ignoring supplier invoices. You’ll receive e-invoices too, so plan how they reach your books.
Running Business in Other Gulf Countries?
The UAE uses a similar accredited service provider model. See choosing an accredited service provider in the UAE. Saudi Arabia works differently, with direct integration with ZATCA. See ZATCA Phase 2 integration for ERPNext.
Frequently Asked Questions
When must SMEs in Oman adopt e-invoicing?
Under Decision 189/2026, VAT-registered businesses with annual supplies of OMR 5 million or less must issue electronic invoices from 1 October 2027.
Is Fawtara Phase 3 still in August 2027?
No. Decision 189/2026 replaced the earlier phases. SMEs now have a compulsory date of 1 October 2027.
Do small businesses need special software for Fawtara?
Yes. Invoices must be created in Oman’s PINT OM format and sent through an accredited service provider, which spreadsheets and many basic tools can’t do on their own.
Can I keep using Excel for invoicing?
Not on its own. You’ll need software or a provider portal that produces compliant e-invoices and connects to an accredited service provider.
Does Fawtara apply if I’m not VAT-registered?
Currently, businesses that aren’t VAT-registered are outside the mandate.
Can SMEs adopt Fawtara early?
Yes. Voluntary adoption before your compulsory date lets you test and fix problems early.
What’s the cheapest way for an SME to comply?
It depends on your volumes and current software. Very small businesses may use a provider portal; growing businesses usually save time and errors with an integrated system like ERPNext, which has no licence fees.
Get Fawtara-Ready Without the Stress
Bizloom ERP helps Omani SMEs prepare for Fawtara, working remotely across Oman. We can:
Review your current setup and recommend the right route
Help you shortlist accredited service providers
Clean customer, item and tax data
Implement ERPNext with Fawtara integration, with no licence fees
Train your staff and test before go-live
Bizloom ERP is developing a Fawtara e-invoicing app for ERPNext, with Odoo support to follow. Learn more about our tax and e-invoicing integrations, or read our Oman e-invoicing (Fawtara) overview.
Running an SME in Oman? Message us on WhatsApp and we’ll suggest the simplest route for your business. Ask on WhatsApp
Want a readiness review? Book a Free ERP Assessment with Bizloom ERP.