GİB-approved special integrator
Directly integrated with GİB — no intermediary integrator layer. e-Invoice, e-Archive, e-Waybill, e-Ledger, e-Ticket, e-SMM, e-MM all in one account. Transparent package-based pricing, not per-document credits.
e-Invoice e-Archive
Software
GİB-Approved Special Integrator · UBL 2.1 · 24/7 Support
e-Invoice is an invoice issued in electronic format that carries the same legal value as a paper invoice. It is a single-format, secure system designed to bring speed, savings and control to both parties of a transaction.
7 Document Types
GİB-Approved Special Integrator
e-Invoice · e-Archive · e-Waybill · e-Ledger · e-Ticket · e-SMM · e-MM — every flow from a single panel.
What is e-Invoice?
Secure, fast, cost-saving and eco-friendly
e-Invoice is an invoice issued in electronic format with the same legal value as a paper invoice. It is not a new type of document. It is a single-format, secure system designed for speed, savings and control between buyer and seller.
It has been put into practice by the Turkish Revenue Administration (GİB) under the Ministry of Finance. With e-Invoice you and your company gain speed, security and cost savings as key benefits. Because every step is electronic, you are freed from the paperwork burden commonly called bureaucracy.
VUK 397
For legal entities
VUK 416
For natural persons
6 Advantages
Your invoice flies away
With e-Invoice collections speed up, costs go down and nature is protected.
1
Get Paid Faster
Deliver invoices to your customers instantly. Start your collection process in the fastest, most secure way.
2
Create Invoices Easily & Fast
End costs like paper, ink, envelopes, postage and archiving. Cut your expenses to the minimum.
3
Cut Shipping Costs
Create and send your invoice instantly from any internet-connected phone, tablet or computer.
4
Send Invoices Instantly
Digitally prepared invoices reach the other party at once. No more lost-in-shipping problems.
5
No Physical Storage
Store invoices securely in digital form instead of physically. Fast access, easy archiving.
6
Protect Nature
Do business without physical paper thanks to e-Invoice. Help protect nature and support sustainability.
Mobile Invoicing THE MOBILE
THE MOBILE
INVOICE ERA
Create your invoices instantly from a smartphone, tablet or computer and send them to your customers in real time.
With the ELPO mobile app, invoice from anywhere, any time. Thanks to ERP integration, stock, customer and sales data stay in sync.
7/24
Access from anywhere
UBL 2.1
GİB-compliant format
7 e-Document Types
All e-document processes in a single panel
e-Invoice
Electronic invoice between taxpayers
Electronic document replacing paper invoices for both legal entities and natural persons. Issued in UBL 2.1 format and exchanged between parties via GİB.
TARGET AUDIENCE
GİB e-Invoice taxpayers
e-Archive
Invoice for non-registered buyers
Invoices issued to customers who are not e-Invoice taxpayers. Reported to GİB and delivered to the customer as PDF or on paper.
TARGET AUDIENCE
End consumers / non-registered companies
e-Waybill
Digital dispatch note
The electronic equivalent of the paper dispatch note used in goods movement. Digitises logistics, warehouse and shipping processes.
TARGET AUDIENCE
All companies that ship goods
e-Ledger
Journal & general ledger
Electronic version of the journal and general ledger in XBRL-GL format. Berats are sent to GİB; no physical books are kept.
TARGET AUDIENCE
Taxpayers keeping books on a balance-sheet basis
e-Ticket
Passenger / event ticket
Electronic ticket for passenger transport (road, air, sea) and events. Replaces the traditional taxable document.
TARGET AUDIENCE
Transport operators and event organisers
e-SMM
Self-employed receipt
Electronic receipt issued by self-employed professionals such as lawyers, doctors, accountants and architects instead of paper receipts.
TARGET AUDIENCE
Self-employed professionals
e-MM
Producer receipt
Electronic version of the producer receipt issued when buying goods from farmers and producers. For agriculture and livestock sectors.
TARGET AUDIENCE
Producers and raw-material buyers
Joining the System
Join the e-Invoice system in 3 ways
Pick the method that fits your needs — we will tell you which one is right for you.
Direct Integration
The Information System Integration method is designed for taxpayers able to provide an uninterrupted 24/7 connection by integrating their own information system with the GİB system.
Pros
- Full control
- Direct invoicing from the ERP
Cons
- High initial cost
- Technical responsibility on the company
- GİB certification process
Portal Method
An e-Invoice application service offered free of charge by the Turkish Revenue Administration at efatura.gov.tr. Suitable for low-volume users.
Pros
- Free of charge
- Quick start
Cons
- Manual data entry
- No ERP integration
- Inefficient at high volume
RECOMMENDED
Special Integrator (ELPO)
Special integrators are intermediary institutions authorised by the Turkish Revenue Administration to create electronic records such as e-invoice, e-ledger, e-archive invoice and e-ticket on behalf of the taxpayer. ELPO's infrastructure is ready for taxpayers with varied billing needs or high invoice volumes.
Pros
- GİB-approved infrastructure
- Ready ERP integration
- High-volume and complex invoice flows
- 24/7 support + monitoring
Cons
- Monthly subscription fee
Frequently Asked Questions
What you need to know about e-Invoice and e-Document
What is an e-Fatura?
An e-Fatura is an invoice that carries the same legal status as a paper invoice, issued electronically in UBL-TR 2.1 format and delivered between buyer and seller through the GİB system. It is not a new type of document; it is simply the digital form of the existing invoice.
What is the difference between an e-Arşiv invoice and an e-Fatura?
An e-Fatura is exchanged mutually through GİB when the buyer is also registered for e-Fatura. An e-Arşiv invoice, on the other hand, is issued when the buyer is not an e-Fatura taxpayer (an end consumer or an unregistered company); it is reported to GİB and delivered to the customer by email/PDF or as a paper printout.
Who is required to use e-Fatura?
Taxpayers exceeding a certain turnover threshold, along with those operating in sectors such as fuel, tobacco, fruit and vegetable brokerage, and e-commerce that GİB has brought into scope by communiqué, are required to use e-Fatura. Since the current turnover threshold changes with new communiqués, the legislation must be monitored.
What is a private integrator, and why is it needed?
A private integrator is an intermediary authorized by GİB with the right to create, send, and store documents such as e-Fatura, e-Arşiv, and e-Defter on behalf of the taxpayer. Companies that do not want to build their own IT infrastructure, or that issue high volumes of invoices, run the process quickly through a private integrator.
How do you switch to e-Fatura?
First, a financial seal (for legal entities) or an electronic signature (for individuals) is obtained, then a method is chosen: direct integration, the GİB portal, or a private integrator. When working with a private integrator such as ELPO, the application, setup, and ERP integration are completed within a few days.
What is an e-İrsaliye?
An e-İrsaliye is the electronic equivalent of the paper dispatch note issued during the shipment of goods. It is created electronically at the moment of dispatch and delivered through the GİB system, digitizing logistics and warehouse processes.
What is an e-Defter?
An e-Defter is the keeping of the journal and the general ledger in electronic form. The certificates (berat) are submitted to GİB, eliminating the obligation to have physical books notarized and stored.
FAQ
Everything You Want to Know About e-Invoice
"Who can use e-Invoice?", "How do I apply?", "Which software does it integrate with?" — for answers to all your questions, get in touch with us.
Go to FAQ Page Why ELPO?
7 differences that set ELPO apart in e-Document integration
Most GİB-approved special integrators just "pass invoices through." ELPO goes further — offering an integrated infrastructure that brings all 7 e-document types under a single panel, including regulatory tracking, shaped by real accountant feedback.
Regulatory changes included in the subscription
When a GİB communiqué or UBL schema change arrives, the system updates automatically. No extra development fee, no extra license, no "new version" sales pressure. Our compliance team watches it for you.
ERP-independent REST API
Ready JSON / UBL XML compatibility with both Turkish and foreign ERPs. A single webhook to your existing ERP is enough — from invoice creation to GİB delivery, the rest is automatic. If you're a software partner, use white-label mode.
KVKK + ISO 27001 + data center in Türkiye
All invoice data is hosted within Türkiye's borders. KVKK compliance file ready, ISO 27001 processes in force. None of the audit issues seen with overseas cloud integrators.
Mobile + desktop + portal
Issue the same document from the field on mobile, approve it in the office on the portal, and let your accountant push it to e-Ledger automatically. Three channels, one database — no conflicts, no double data entry.
Turkish live support · real accountant
The support team pairs a chartered accountant with a software engineer. For questions like "how do I cancel this invoice" or "how does the return scenario work," you get answers grounded in the legislation.
15-year invoice archive · instant access
Beyond GİB's mandatory 10-year retention, a 15-year archive guarantee. PDF + UBL XML download, search, and time-stamped package export for audits — queries in milliseconds.
Bulk processing + automatic rules
Transfer thousands of invoices in one click, with a rule engine for automatic routing like "customer X ⇒ e-Archive, customer Y ⇒ e-Invoice." No manual one-by-one selection — ideal for mixed retail + B2B scenarios.
7 document types in a single panel
GİB directly approved integrator
15 years archive guarantee
KVKK + ISO 27001 compliance
Türkiye data center
Data & Server Infrastructure
e-Belge data in our own cloud, 24/7 uninterrupted
Not on a plain server — it is stored in our powerful private cloud infrastructure, built from physical servers that are entirely ours and hosted in high-security certified data centers. The servers are not rented or shared; the hardware, network and security layers are ours end to end. The same infrastructure protects every ELPO product.
The e-Belge infrastructure is fully isolated
The e-Belge (e-Invoice / e-Archive) systems that process your fiscal documents run on servers that are separate and isolated — both physically and at system level from every other ELPO service. Your fiscal data stays on its own secure island; it never shares a server with another application.
Safe Harbor: ELPO
Your data on our own servers, your fiscal seal in our own HSM — entrusted to no one
In Türkiye we are the first and only company to invest in its own servers and its own HSM infrastructure at this scale. Most providers rent servers and outsource e-Invoice signing to a third party. With us, dual data centers, disaster recovery and our own HSM are in place from the start — you take no service from outside. The safe harbor is ELPO.
Rare among competitors
- Our own servers
- Our own HSM — not rented
- 2 data centers + DR
- Zero external dependency
Our Server Infrastructure Topology
Overall System Infrastructure Topology
Web portal → load-balanced web servers → HSM → PostgreSQL Cluster → database nodes. Primary Data Center + Disaster Recovery Center.
Physical Server Topology
Firewall → switch → HSM → cluster nodes → storage → replica server → long-term external backup. Dual center, dual line.
6-Node PostgreSQL Replication
Synchronous within a center, asynchronous between centers. Continuity with no data loss even if a node or a center goes down.
Data center names and addresses are not shared for security reasons. In other languages the labels inside the diagrams are translated into that language.
2
Geographically separate data centers
Primary Center + Disaster Recovery
6-node
PostgreSQL Cluster
Instant replication, no data loss
Load Balancer
Software load balancing
Service continues if a server fails
24/7
Monitoring · Support · Alerting
Uninterrupted operation
Our Data Centers
Two certified, high-security data centers. Each with: N+2 redundant UPS, dual generators, N+2 redundant cooling, FM2000 gas fire suppression and earthquake-code compliant construction.
Physical Server Inventory (two centers combined)
4
Firewall
4
Switch
4
Storage
6
Virtualization Server
2
HSM Device
2
Backup Server
2
External Disk Unit
6
Web + 6 Database Servers
Our Certifications · Management System Standards
ISO/IEC 27001
Information Security Management System
ISO 22301
Business Continuity Management System
ISO/IEC 20000-1
IT Service Management System
ISO 9001
Quality Management System
ISO/IEC 27001, ISO 22301 and ISO/IEC 20000-1 are mandatory for e-Belge (e-Invoice / e-Archive) special integrator status; with ISO 9001 we also certified our quality management.
VMware ESXi Cluster
For horizontal and vertical scaling flexibility, services are placed on virtual servers over a VMware ESXi Cluster. If one node fails, its virtual servers keep running on another node without interruption.
6-Node PostgreSQL Cluster
The portal runs on a 6-node PostgreSQL Cluster. If the primary node has an issue, Node-2 takes over automatically; Node-3 is dedicated to backup and reporting (no performance loss). All data is replicated asynchronously to the Disaster Recovery Center with a 15-minute delay — no data loss.
What is an HSM Device?
A Hardware Security Module (HSM) is dedicated security hardware that stores sensitive cryptographic keys in a physical environment and performs cryptographic operations in the most secure way. It keeps the fiscal seal and e-signatures used in e-Invoice/e-Archive signing safe — never entrusted to a third party.
System & Remote Access Security
The data centers are connected by a Site-to-Site VPN tunnel; remote access to the infrastructure is only via SSL-VPN. Servers are closed to the internet except for their service ports; remote connection is provided over RDP through the SSL-VPN on the firewall.
Data Center Access (ISO 27001)
Under ISO 27001 Information Security, system/network administrators' entry to the server rooms is logged via request form → management approval → an authorized card issued against a signature/declaration.
Business Continuity Plan
The storage has two controller cards; if one fails the other keeps serving without interruption. If both fail, the portal runs with no data loss from the PostgreSQL cluster on the instantly replicated ESXi. If the primary data center goes down entirely, service continues from the DR center.
Fiscal reporting: the HSM is ours, the USB dongle can also be yours
The HSM devices are entirely ours where your e-Invoice and fiscal filings are signed — your fiscal seal and e-signatures are kept in physically secure hardware. Taxpayers who wish can also file with their own USB dongle (fiscal seal token); we support both methods.
White-Label e-Document Integrator Partner Program
Become Their Own Integrator
Accountants, accounting software vendors, ERP companies — offer e-Document integrator service under your own brand. UI + API fully customisable, ELPO handles the engine that talks to GİB. Your customers invoice you.
API
REST + UBL XML
7 document types · send · query · archive in a single API
Brand
White-Label Portal
Customer portal on your own domain · logo · colors · help docs
Pricing
Volume-Based Commission
Per-credit pricing · VAT-inclusive partner discount · revenue share
Do the Math
White-Label & Source Code How much do you pay every year for credits and licenses?
Become an integrator under your own brand, or run fully independent with the source code. Rent continues every year — ownership is bought once. We've been a GİB special integrator since 2015; we hand you the engine.
Switch to e-Document, Speed Up
Manage all 7 e-document types in one panel on ELPO's GİB-approved special integrator infrastructure. Ready ERP integration, mobile-ready, 24/7 monitoring.
White-Label · Partnership
ELPO works like your own software house
You do what you know best — sales, technical work, production, whatever your field is. We do what we know best: software. You market ELPO products under your own brand; ELPO handles development, updates and regulatory compliance in the background, just like your own team. Launch your own software brand without writing code or building a team — let's win together.
Your brand, your domain
ELPO products as if it were your own product — your logo, your colors, your domain. Your customer sees you, not the ELPO behind it.
You run your own business
Sales, technical support, production — stay in your field. We handle the software, the thing we know best; everyone on their strong side.
ELPO owns the development
ELPO builds the product, updates it and keeps it compliant with regulations — just like your own back-office software team.
Source-code sharing when needed
If needed, we also share source code depending on the agreement. The product truly becomes yours; your future isn't tied to a single vendor.
Become a partner / reseller White-Label & Source Code — details Let's talk about revenue-share, dealership, solution partnership, OEM and — subject to agreement — source-code sharing models.