Skip to content
Company

Electronic Fiscalisation (EFI) in Montenegro

Guide to electronic fiscalisation (EFI) in Montenegro: who is obliged, how to register business premises, operators and software on the SEP portal, what a fiscal invoice must contain (IKOF, JIKR), what to do when the internet is down, and the fines (up to €40,000). Both cash and non-cash invoices are fiscalised in real time through the Tax Administration's fiscal service.

6 steps
Updated: 16.09.2026

At a glance

Timing
Depends on obtaining the certificate and software; business premises must be registered at least 24 h before the first invoice
Cost / tax
No Tax Administration fee; the cost of the e-signature certificate and software depends on the chosen provider
  • The Tax Administration charges no fee; you only pay for the certificate and software.
  • Business premises must be registered at least 24 hours before the first invoice.
  • Registration and invoices go through the SEP portal (sep.tax.gov.me).
  • The duty to fiscalise does not depend on being VAT-registered.

Procedure

Obligors are (1) natural persons liable to personal income tax who must issue invoices (entrepreneurs), (2) legal entities liable to corporate income tax who must issue invoices (d.o.o. etc.) and (3) taxpayers selling goods or services through self-service machines — Art. 4 of the Fiscalisation Law. Fiscalisation covers both cash and non-cash payments (Art. 1–2). Not obligors (Art. 5): sale of tickets/tokens in scheduled passenger transport, sale of own agricultural products at market stalls, purchase of agricultural products by VAT payers, universal postal services, banking and insurance, payments for games of chance, sales on board the national air carrier. Mixed activities are exempt only for the Art. 5 activities (Art. 6).

Entrepreneur / director1 day

The obligation does not depend on VAT registration: the Art. 4 test is being a personal/corporate income taxpayer with a duty to issue invoices, which also applies to small entrepreneurs below the €30,000 turnover threshold.

The obligor must use a certificate for electronic signature issued by a certification service provider under the e-signature regulations to sign fiscal invoices and to authenticate in the exchange with the Tax Administration (Art. 10 para. 2–3). The certificate (or a soft certificate) is installed on the electronic payment device (ENU) — hardware with software that creates, sends and receives fiscal-invoice messages (Art. 3 item 8).

ObligorNo statutory deadline — depends on the certificate provider
Certificate for electronic signature / seal — issued by a qualified trust service provider registered with the Ministry of Public Administration

Before using the fiscal service the obligor electronically submits data on each business premises separately, at least 24 hours before it starts issuing fiscal invoices (Art. 14 para. 1). Data: TIN, geolocation, address, type of premises (incl. online shop and mobile premises), activity code, working hours and days, start date, temporary closures, end date, floor area, payment mode (cash/non-cash), status, owned or rented (Art. 14 para. 2). The Tax Administration generates a unique premises code. Any change (closure, new premises, change of activity) is reported at least 5 days before it occurs (Art. 14 para. 6). Registration is done on the Self-service EFI Portal (SEP): https://sep.tax.gov.me/self-care (test environment: https://efitest.tax.gov.me/self-care).

Obligor1 day (deadline: 24 h before start)
Business-premises data (13 items from Art. 14 para. 2)SEP portal user manual (Tax Administration)

For every person issuing invoices the obligor assigns an operator code, links it to that person's JMB and reports it to the Tax Administration (Art. 8). Before using the fiscal service it also reports the software producer and maintainer: name, seat, TIN, software name and the unique producer/maintainer code assigned by the Tax Administration (Art. 15–16). The software must embed the producer code and must not allow non-issuance of invoices or avoidance of fiscalisation (Art. 11 para. 1, Art. 15 para. 4).

Obligor + software vendor1 day
Operator code registration (code + JMB)Software producer and maintainer data (name, seat, TIN, software name, unique code)

Before going live the obligor is given the possibility to test the fiscal service (Art. 11 para. 2; test SEP portal). Every fiscal invoice is signed electronically and sent to the Tax Administration in real time; the Tax Administration returns the unique invoice code (JIKR), which is printed on the invoice together with the obligor's code (IKOF) (Art. 12–13). Besides the VAT data, a fiscal invoice contains: invoice number (invoice / premises / year / ENU), hour and minute, operator code, IKOF, JIKR, payment method (cash, card, bank transfer, other), payment due date if not paid immediately, and the buyer's TIN for B2B / non-cash transactions (Art. 7 and 9). At the start of each working day the cash deposit per ENU is reported to the Tax Administration (Art. 12 para. 2). Cancellation and refund invoices are fiscalised too (Art. 21). A notice on the obligation to issue and take an invoice must be visibly displayed at every point of sale (Art. 32 para. 9 of the VAT Law).

Obligor / operatorOngoing
Fiscal invoice with IKOF and JIKRDaily cash-deposit report per ENU

A buyer may check within 90 days of issue whether the invoice was reported to the Tax Administration (Art. 22).

Temporary internet outage: invoices are issued without a JIKR (IKOF only); the obligor must restore the connection and send them within 2 days, otherwise notify the Tax Administration (Art. 17). Fiscal service failure: invoices are recorded in an invoice book previously certified by the Tax Administration; within 5 days the service must be restored or the Tax Administration notified on the prescribed form, and the invoices sent electronically within the same period (Art. 18). Areas without internet coverage: the obligor works in off-line mode with a certificate from the Agency for Electronic Communications on unavailability of internet (issued within 30 days, valid one year, renewable) and delivers the invoices to the Tax Administration by the 10th of the month for the previous month (Art. 19–20).

Obligor2 days / 5 days / by the 10th of the month
Invoice book certified by the Tax Administration (fallback procedure)Certificate of the Agency for Electronic Communications on internet unavailability (only for uncovered locations)

Need an accountant?

Leave an enquiry — we'll forward it to an accounting firm. No obligation.

Who is and who is not an obligor (Art. 4–5)

Who is and who is not an obligor (Art. 4–5)
ObligorNot an obligor
Entrepreneur (personal income tax payer) issuing invoicesSale of tickets/tokens in scheduled passenger transport and luggage fees
Legal entity (corporate income tax payer) issuing invoicesSale of own agricultural products at market stalls
Sales through self-service machinesPurchase of agricultural products by VAT payers
Both cash AND non-cash payments (B2B invoices too)Universal postal services; banking, insurance and reinsurance
Online shops and mobile premises (registered as premises type)Payments for games of chance; sales on board the national air carrier

Deadlines in the fiscalisation procedure

Deadlines in the fiscalisation procedure
ActionDeadlineArticle
Register premises before the first invoice24 hours before startArt. 14 para. 1
Report a change of premises data5 days before the changeArt. 14 para. 6
Report cash depositAt the start of each working day, per ENUArt. 12 para. 2
Internet outage — reconnect and send invoices2 daysArt. 17 para. 2
Fiscal service failure — invoice book, notice and delivery of invoices5 daysArt. 18 para. 2 and 4
Off-line mode (no coverage) — deliver invoicesBy the 10th of the month for the previous monthArt. 19 para. 3
Agency certificate on internet unavailabilityIssued within 30 days, valid 1 yearArt. 20 para. 4–5
Buyer's verification of an invoice90 days from issueArt. 22

Fines (Art. 24, 26–28)

Fines (Art. 24, 26–28)
OffenceLegal entityEntrepreneurResponsible / natural person
Not issuing fiscal invoices via the fiscal service; software allowing avoidance; machines without fiscalisation; no invoice book; not using off-line mode (Art. 26)€8,000–40,000€2,000–12,000€1,300–4,000
Incomplete invoice content/number, no certificate, premises not registered 24 h ahead, changes not reported 5 days ahead, 2/5-day and 10th-of-month deadlines (Art. 27)€4,000–20,000€1,000–6,000€650–2,000
Operator code not linked to JMB / not reported; no Agency certificate (Art. 28)€3,500–15,000€1,000–6,000€300–2,000 (responsible) / €650–2,000 (natural person)
Measure: ban on activity (Art. 24)Up to 90 days or until the cause is removed——

Additional notes

The law applies from 1 January 2021; the old tax cash registers (Regulation on the tax cash register) ceased to apply on 1 June 2021 (Art. 29–32). There is no 'fiscal cash register' device — the system is software-based: certificate + software + permanent internet connection.

According to the consolidated text on gov.me the law includes amendments up to Off. Gazette 8/21; the July 2026 tax package (Off. Gazette 104/26) does not amend the Fiscalisation Law.

IKOF (obligor's identification code) is generated by the obligor's software, JIKR (unique invoice code) by the Tax Administration — both are alphanumeric and graphic records on the invoice (Art. 3 items 1–2, Art. 13).

Questions and support: IRMS portal (https://irms.tax.gov.me/public/), e-mail [email protected], tel. 19707.

Required Documents

  • Certificate for electronic signature / seal
  • Business-premises data (TIN, geolocation, address, type, activity, working hours, floor area, payment mode, owned/rented)
  • Operator code registration with JMB
  • Software producer and maintainer data with unique code
  • Invoice book certified by the Tax Administration (fallback)
  • Agency certificate on internet unavailability (if applicable)

FAQ

How do I cancel (storno) a fiscal invoice I have already issued?+

An issued fiscal invoice has already been sent to the Tax Administration in real time (Art. 2), so it is not deleted or edited. Instead you issue a new invoice that cancels (storno) the previous one; an invoice showing a full or partial return of goods or services is issued the same way. All provisions of the law apply to such an invoice accordingly (Art. 21): it goes through the fiscal service, is signed with the electronic certificate, gets an IKOF and a JIKR (Arts. 10, 12–13) and takes the next number in the continuous sequence for that business premises and device (Art. 9). The exact button or menu depends on your fiscalisation software.

Are B2B invoices paid by bank transfer fiscalised too?+

Yes. The law covers fiscalisation of both cash and non-cash payments (Art. 1–2). A non-cash invoice shows the payment due date and the buyer's TIN (Art. 7) and is numbered per Art. 9.

Do I have to fiscalise if I am not VAT-registered?+

The law ties the obligation to being a personal/corporate income taxpayer with a duty to issue invoices, not to VAT registration (Art. 4). Entrepreneurs below the €30,000 VAT threshold still have a duty to issue invoices, so they are covered too.

What if the internet goes down?+

You issue invoices without a JIKR (IKOF only) and within 2 days reconnect and send them to the Tax Administration; if you cannot, you notify the Tax Administration (Art. 17). If the fiscal service itself is down, invoices are entered in the certified invoice book and delivered within 5 days (Art. 18).

When do I register new premises or a closure?+

New premises at least 24 hours before the first fiscal invoice; any change, including temporary or permanent closure, at least 5 days before it occurs (Art. 14).

How high are the fines for not issuing a fiscal invoice?+

€8,000–40,000 for a legal entity, €2,000–12,000 for an entrepreneur, €1,300–4,000 for the responsible person (Art. 26), plus a possible ban on activity for up to 90 days (Art. 24).

Related guides