Built for Oman · Fawtara-ready

Oman's e-invoicing mandate is coming. Your invoices are already compliant.

Validate, seal, report and archive Fawtara invoices without replacing your ERP.

Book a briefing → See how it works

First mandate wave

Aug 2026

Wave 01 · large VAT

Validate + seal

< 200 ms

Field errors at the desk

Audit archive

10 yr

Audit-ready dossiers

Built around Oman's standards · End to end

PINT-OM Fawtara network Oman Tax Authority OAuth 2 + mTLS ASP-ready

Operator console · running today

Every invoice. Validated, reported, archived.

One live lifecycle shared by the portal, API and SDK.

Capture Validate Seal Report Archive

Today3,412 / 3,418

Avg latency142 ms

Validation pass100 %

Invoice queue · live Normal

INV-007421 Mada'in Oman Trading Tax invoice · OMR 4,820.00 Sealed

INV-007422 Al Bahja Industries Credit note · OMR 1,140.50 Reporting · OTA

INV-007423 Sohar Logistics SAOG Tax invoice · OMR 18,440.00 Sealed

INV-007424 Khimji — AP inbound OMR 6,200.00 Queued

The mandate

If you're VAT-registered in Oman, one of these dates is yours.

Mandate waves

Aug 2026 → TBA for gov.

Accepted format

Structured PINT-OM — not PDF

Product status

Ready

Console + engine running today

Record-keeping duty

10 yr

Provably unaltered, on demand

Effective date

Cohort

Who this is

Status

Aug 2026

Selected large VAT companies

Tier-1 enterprise · finance teams

Now

Feb 2027

All large VAT companies

Enterprise · regulated industries

Next wave

Aug 2027

Remaining VAT taxpayers

SME · trade · services

Scheduled

TBA

Government entities

Ministries · authorities

TBA

Who it's for

One engine. Every size of business.

AUG 2027 Scale wave

SMEs & growing businesses

A guided “make me compliant” workflow in the browser. Ready in days, not months.

Simple onboarding · Bilingual EN/AR

AUG 2026 Wave one

Enterprise finance teams

ERP connectors, bulk ops, dashboards and per-invoice audit dossiers. Wave one lands here first.

SAP · Oracle · Dynamics · Dedicated controls

TBA Final wave

Government & large groups

Isolated infrastructure and audit-first visibility, built to pass a security review.

Isolated infra · Audit visibility

Architecture

Compliant. Secure. Fast.

01 · COMPLIANT

Validate every invoice before it moves.

Local rule checks, versioned profiles and a per-invoice evidence dossier — defensible years later.

RulesPINT-OM · Schematron · monetary
FormatXML · PDF-A3
ProfileVersioned per country
DossierDefault on every invoice

02 · SECURE

Protect every customer's data, provably.

Tenant isolation, mTLS exchange, MFA + RBAC and encrypted archive. Architecture, not a promise.

KeysSigning-ready · enabled if mandated
TenancyRow-level isolation
NetworkmTLS provider exchange
AccessMFA + RBAC · audit log

03 · FAST

Never block the user. The network catches up.

Validate and seal in milliseconds; report, exchange and archive run behind a queue. Scale is a queue concern, not a UX one.

SyncValidate + seal · ~ms
AsyncReport · exchange · archive
RetriesIdempotent by design
ScaleWorkers, not users, queued

How it works

Your system stays the source of truth. The engine takes it the rest of the way.

STEP 01

Capture

Screens, ERP, SDK or API.

STEP 02

Validate

Field errors before network calls.

STEP 03

Seal

Final XML bound to its rule version.

STEP 04

Report & send

OTA and buyer delivery run async.

STEP 05

Built to clear invoices at national scale.

< 200 ms

Validate + seal

Local return. Network waits behind the queue.

99.95%

Target availability

Monthly SLO for the clearing engine.

10,000+ /min

Sustained throughput

Queue-backed headroom for mandate volume.

10 yr

Tamper-evident archive

Dossiers retained for Oman's record duty.

Design targets for the engine · verified under pre-mandate load testing

Product experience

Four interfaces, one backend contract.

For SMEs

Web app

Guided issuing and tracking.

Surfaces

Issue · Receive · Status
Download · Archive

For tax teams

Enterprise portal

Bulk actions, disputes and dossiers.

Surfaces

Dashboard · Disputes · Bulk
Dossier · Reports

For operations · running today

Operator console

The screen that runs the service.

Surfaces

Overview · Invoices · Queues
Tenants · Compliance · Billing

For developers

API & webhooks

Open API, events and connectors.

Surfaces

REST · Webhooks · ERP
Sandbox · Events

Integration

Six ways to plug Finarc into the way you already work.

01 · EmbeddedGA

Embedded SDK

Issue, receive and status inside your own portal.

JS · iframe · postMessage · CSP-friendly

02 · APIGA

REST API

Issue, validate, fetch status and pull dossiers.

HTTPS · OAuth 2 · mTLS · OpenAPI 3.1

03 · WebhooksGA

Webhooks

Subscribe to invoice, OTA and exchange events.

HMAC-SHA256 · retries · DLQ · replay

04 · ERPBeta

ERP connectors

Declarative mapping packs, starting with SAP.

SAP · Oracle · Dynamics · Tally · Zoho · QBO

05 · BatchGA

File batch

CSV or UBL/XML batches with per-row results.

SFTP · UBL 2.1 · CSV · PGP-optional

06 · SandboxOpen

Sandbox & CLI

Synthetic OTA plus local PINT-OM validation.

finarc-cli · sandbox.finarc.io · 10k/day free

sandbox.finarc.io

# Issue a tax invoice — synchronous validate + seal
curl https://api.finarc.io/v1/invoices \
  -H "Authorization: Bearer $FINARC_TOKEN" \
  -H "X-Idempotency-Key: ord-7421" \
  -H "Content-Type: application/json" \
  -d '{
    "profile": "OM-PINT-1.0",
    "document_type": "TaxInvoice",
    "seller": { "vat": "OM1100012345", "name": "Finarc Demo SAOG" },
    "buyer":  { "vat": "OM1100098765", "name": "Sohar Logistics" },
    "lines": [{
      "description": "Telematics monthly",
      "qty": 12, "unit_price": "45.50",
      "hsn": "998313", "vat_rate": 5
    }]
  }'

# → 201 · invoice sealed in 142 ms · INV-007423 · queued for OTA reporting
# Pull lifecycle status & receipts
curl https://api.finarc.io/v1/invoices/INV-007423/status \
  -H "Authorization: Bearer $FINARC_TOKEN"

{
  "id": "INV-007423",
  "state": "reported",
  "profile_version": "OM-PINT-1.0",
  "sealed_at": "2026-05-28T11:42:18Z",
  "ota": {
    "reported_at": "2026-05-28T11:42:19Z",
    "receipt_id": "OTA-2026-05-9F71A",
    "ack": "accepted"
  },
  "exchange": {
    "delivered_at": "2026-05-28T11:42:21Z",
    "counterparty": "OM1100098765"
  },
  "dossier_url": "https://archive.finarc.io/d/INV-007423"
}
# Inbound webhook · HMAC-SHA256 signed
POST https://your-app.example/finarc/webhook
X-Finarc-Signature: t=1717010522,v1=8c3a…f08e
X-Finarc-Event: invoice.sealed

{
  "event": "invoice.sealed",
  "id": "evt_01J9P3R2…",
  "created": 1717010522,
  "data": {
    "invoice_id": "INV-007423",
    "profile": "OM-PINT-1.0",
    "amount_total": "18440.00",
    "currency": "OMR",
    "buyer_vat": "OM1100098765"
  }
}

# Retries: 0s · 30s · 5m · 30m · 2h · 12h  (DLQ after)

API v1.4.2 · OpenAPI 3.1 Auth OAuth 2 + mTLS

Method

Path

Description

Rate

POST

/v1/invoices

Issue, validate & seal a new invoice

500 / min

GET

/v1/invoices/{id}/status

Lifecycle, OTA receipt, exchange ack

2,000 / min

GET

/v1/invoices/{id}/dossier

Audit dossier: XML · PDF-A3 · certs

200 / min

POST

/v1/invoices/{id}/credit-note

Issue a correcting credit note · append-only

100 / min

POST

/v1/webhooks

—

GET

/v1/profiles

Available country profile packs

—

Resources

Everything your team needs to evaluate the engine.

JSON Open

OpenAPI 3.1 specification

Endpoints, schemas, auth and errors.

v1.4.284 KB · JSONUpdated May 2026

Download spec

ZIP Open

Postman collection

Environment, credentials and examples.

v1.412 KB · ZIPUpdated May 2026

Download collection

PDF Gated

Fawtara & PINT-OM primer

Waves, accreditation and reporting triggers.

24 pages1.2 MB · PDFUpdated Apr 2026

Request PDF

PDF Gated

Security & compliance posture

Key handling, tenancy, mTLS and archive.

18 pages980 KB · PDFUpdated May 2026

Request brief

PDF Gated

Profile pack reference

Fields, Schematron, codelists and transport.

32 pages1.5 MB · PDFUpdated May 2026

Request reference

PDF Gated

Integration handbook

Adapters, SDK, webhooks, retries and archive.

48 pages2.1 MB · PDFUpdated May 2026

Request handbook

Why Finarc

A local-first engine — not a foreign black box with an Oman adapter.

Oman rules are first-class profile packs, not late localisation.

Profile pack · stacked layers Oman / v1.0

Country Rule version, fields, tax logic, codelists, language pack

Transport Exchange endpoints, certificates, reporting triggers

Accreditation Testing, local operating controls, market readiness

Operations Monitoring, support model, operating runbooks

What buyers fear

Late Oman localisation
Opaque signing and archive flows
SME screens that expose the plumbing
Compliance added after the fact

What you get with Finarc

PINT-OM built in from day one
Connect your ERP, don't migrate it
Errors in English or Arabic before send
One ten-year dossier per invoice

Getting started

Live before your wave — in three steps, not a migration.

Weeks 1–2 Step 01

Weeks 3–6 Step 02

Before your wave Step 03

Start here

Assess & connect

Map sources and open a sandbox tenant.

Validate

Prove it in the sandbox

Run real data against Oman's rules.

Go live

Seal, report, archive

Switch to production with alerts on.

First call checklist Four things to bring

Your mandate wave & date Monthly invoice volumes Source systems — ERP / billing An integration owner

Questions

Fawtara, in plain language.

01What is Fawtara, and who has to comply?

Fawtara is Oman's national e-invoicing system. VAT-registered businesses move to structured, reportable invoices in waves.

02When does the mandate actually start?

The first wave covers selected large VAT taxpayers from August 2026. Later waves cover all large taxpayers, then remaining VAT taxpayers.

03Do I have to replace my ERP or accounting system?

No. Finarc connects to your ERP, billing system or API and handles compliance around it.

04How does an invoice actually get cleared?

Capture, validate, seal, report, archive. The user gets validation fast; network work runs behind the queue.

05What happens if an invoice is rejected?

Most errors are caught before send. Rejections return a clear reason and a fix-and-resend path.

06Is my data secure, and where is it stored?

The posture is tenant isolation, mTLS exchange, MFA + RBAC and encrypted archive. Isolated infrastructure is available for large accounts.

07How long does it take to go live?

The web app can start immediately. API, SDK and connector paths usually begin in sandbox first, then move to production before your wave.

Next step

Book a working session with the Finarc Labs team.

Ninety minutes with finance, IT and compliance. Engine, rollout, decision package.

Book a briefing → Read the architecture

Direct line Open

Email hello@finarclabs.com

Region Oman · Gulf region

Response < 24h business · weekdays IST/GST

For Compliance readiness · ERP connectors · API & sandbox · go-live planning