days until the mandatory introduction of the e-invoice
Certified Peppol network solution for secure sending and receiving of electronic invoices. Mandatory for all VAT payers from 1 January 2027.
Beginning of the voluntary period. Companies can test sending via Peppol.
Mandatory submission of e-invoices for all VAT payers. The recipient’s consent is no longer required.
Transitional period, gradual extension of obligations.
Every VAT payer established in Slovakia, who supplies a good or service in Slovakia will need to have a certified ddigital mail carrier.
SOFTIP Digital Postman is a certified Peppol Access Point solution that ensures sending and receiving electronic invoices in accordance with the current legislation. It acts as your trusted intermediary in the Peppol network - ensuring that every invoice reaches the right recipient safely and securely.
Whether you use SOFTIP ERP, another invoicing system or none at all - we have a solution for everyone.
Mandatory for all VAT payers from 1 January 2027
An electronic invoice is not just an ordinary PDF file or a digital photograph of a paper invoice. It is a structured file in XML format that contains all the required information.
PDF files are primarily intended for human reading. An e-invoice contains data in a standardized XML data structure in accordance with the EN 16931 standard and the Peppol BIS Billing 3.0 rules, so it can be automatically processed by information systems. A PDF can be attached to an e-invoice as a readable view or an attachment, but it does not replace the required XML.
Peppol is an international network and a set of common rules for the secure and standardized exchange of electronic business documents. A company connects through a certified provider and can then communicate with other network participants without having to establish a separate connection with each partner.
Digital Postman is a certified delivery service provider. It ensures the secure sending and receiving of e-invoices via Peppol, as well as their technical validation, routing, and delivery status information. SOFTIP Digital Postman offers both a web interface and an integration API.
SOFTIP Digital Mailbox is a certified Peppol Access Point solution for sending and receiving electronic invoices. It combines a simple web interface, document overview, statistics, and integration options for both SOFTIP systems and other ERP solutions.
A Peppol ID is a unique electronic address for an organization within the Peppol network. The network uses this ID to determine which provider should be used to deliver supported documents to the recipient. In Slovakia, an identifier based on the tax identification number (DIČ) is used when registering entities, in accordance with national rules.
Yes. SOFTIP, a.s. is an accredited provider of delivery services within the Peppol network for the territory of the Slovak Republic.
Yes. If you don't need full integration with an ERP system, you can manage your e-invoices through the web interface. The lowest price tier is designed for 0 to 10 documents per month, so the service is also available to users with a small volume of documents.
Yes. Larger organizations can take advantage of the REST API, role-based access controls, automated document upload and download, status tracking, and custom pricing for volumes exceeding 50,000 documents per month.
January 1, 2027, is the key date for mandatory domestic electronic invoicing. The year 2026 is a preparatory and voluntary period during which companies can select a digital mail provider, adjust their processes, and test integration.
For domestic transactions, the obligation to issue an e-invoice applies primarily to domestic VAT payers in accordance with the rules of the VAT Act. The type of supply and the status of the recipient are also decisive factors; in special cases, we recommend verifying the specific situation in accordance with the current guidelines issued by the Financial Administration.
If you are a legal entity or a taxable person, you must be able to receive e-invoices even if you are not a VAT payer. You are not required to issue e-invoices solely because of this status, but you may use them voluntarily.
No. If you are an ordinary citizen and do not run a business, mandatory electronic invoicing does not apply to you. You will continue to receive invoices for ordinary consumer services as you have in the past.
For a transaction subject to the mandatory reporting regime, the decisive document is a structured e-invoice sent via a delivery service. A PDF file sent via email alone does not satisfy this requirement. However, the PDF may be included as an accompanying readable version or as an attachment.
Yes. This requirement does not apply, for example, to certain tax-exempt supplies under the VAT Act or to cases where the taxpayer issues a simplified invoice pursuant to Section 74(3)(a) or (b). Since the exceptions depend on the specific transaction, we recommend assessing them in accordance with the current wording of the law and the Financial Administration’s guidelines.
Yes, if you are required to receive e-invoices. SOFTIP Digital Mailbox provides you with an electronic mailbox and an overview of received documents, even without full integration with your ERP system.
Choose a certified provider, register your organization, confirm your provider in the Financial Administration interface, and decide whether to use the web interface or integration with your accounting system. At the same time, set up internal processes for approving, posting, and legally archiving XML invoices.
The price is based on the actual number of documents sent and received in a calendar month. For volumes up to 1,000 documents, a monthly flat rate applies; for 1,001 documents or more, a per-document rate applies. Basic support is included in the price. You can find a complete overview of the pricing tiers in price list.
You don’t pay for a fixed package that you may not use. The billing tier is determined each month based on the actual number of documents sent and received, and may increase or decrease. The price thus naturally adapts to your business operations.
No. When you sign up, you’ll provide a realistic estimate of your expected monthly usage so that your initial tier can be set and the service activated. The monthly price is then determined automatically based on your actual usage.
The estimated volume determines the starting tier and the one-time setup fee; therefore, it should reflect the actual expected usage. It is neither a minimum purchase requirement nor a fixed monthly limit. Once the service is activated, monthly billing is automatically based on the actual number of documents sent and received.
No. When registering, please provide a realistic estimate of the number of documents. The initial range is used to correctly configure the service and determine the setup fee; after activation, the system will automatically adjust for monthly fluctuations based on actual usage.
You do not need to amend the contract or sign an addendum. The tier corresponding to the actual number of documents will automatically apply for that month. If the volume is lower the following month, a lower tier may automatically apply.
Yes. Both sent and received documents are included in the actual monthly volume.
No. This is a one-time fee for setting up the service. The amount depends on the actual starting tier selected during registration.
No. Price List Prices are listed exclusive of VAT. VAT will be added to the price at the rate in effect at the time of invoicing.
Includes use of the SOFTIP Digital Mailbox in the applicable service tier, basic support, 99.5% service availability, a web interface, an overview of sent and received documents, and the features specified in the contract, the General Terms and Conditions, and the current price list.
The Basic, Standard, and Premium plans are available. Support is provided on business days from 8:00 a.m. to 4:00 p.m. through the SOFTIP Helpdesk. Service availability is 99.5% % across all tiers; the main difference lies in the garant response and recovery times in the event of a critical incident.
This refers to a situation where essential parts of the application are unusable for activities required by law, the customer cannot proceed using an alternative method, and the problem affects the entire company. The response time begins once the incident has been properly logged with the Help Desk during support hours.
You’ll start the registration process in the Financial Administration interface, where you’ll select SOFTIP as your delivery service provider. You’ll then be sent a link to register online for the SOFTIP Digital Mailman service. During registration, you will fill in and verify your organization’s information, specify the estimated number of documents, select a support level, and electronically accept the contract, Terms and Conditions, and price list. Once registration and activation are complete, you can start using the service. You can find the entire process on the How It Works page.
On the Financial Administration portal, open the application for selecting a certified delivery service provider. The process consists of six steps:
We will then send you a link to register for the Digital Postman service. Detailed instructions with images can be found in the official FRSR manual (PDF).
On the Financial Administration Portal, the system only allows you to select an entity that has been assigned and reported a tax identification number (DIČ). If you select an entity without one, the portal will display an error message, and you will not be able to continue the process. Please verify that you have selected the correct entity. If the company does not yet have a tax ID number, apply for registration with the tax office and repeat the selection process once the tax ID number has been assigned.
The account you use to log in to the Personal Online Zone on the Financial Administration Portal is used. You can log in via the slovensko.sk portal (using a chip-enabled ID card, a chip-enabled residence permit, the Slovensko v mobile app, or an EU digital identity) or with a username and password. If you do not have an account on the portal, please register on the Financial Administration Portal first.
You will receive a message in your message inbox in the Personal Online Zone confirming that your request has been submitted. The portal will also send SOFTIP an email and an electronic notification containing your company’s contact information. We will then contact you with a registration link. If you do not hear back from anyone, the portal will notify you of the failed delivery via a message in your inbox, and you will need to repeat the process.
A warning will appear if you have previously submitted a request to SOFTIP for the same entity. If you have already successfully completed the selection process, you do not need to repeat it. If you have not received your registration from us, you can continue and resubmit the request.
Please have your organization's tax ID number, contact information, a realistic estimate of the total number of documents sent and received per month, and the desired level of support ready. You must verify your organization's information before confirming.
SOFTIP must be confirmed as the service provider no later than 60 days after the contract is signed. Service provision may begin only after the activation conditions have been met.
The contract is entered into for an indefinite term. The terms and conditions governing changes to or termination of the service are set forth in the contract and the current General Terms and Conditions.
The invoice, in XML format according to Peppol BIS Billing 3.0, is submitted to the SOFTIP Digital Mailbox. The Digital Mailbox performs validation, retrieves the recipient’s delivery information, and sends the document via the Peppol network to the recipient’s provider. You can track the document’s status via the web interface or through the API.
The received document is displayed in the web interface and can be made available to a connected information system via an API. Both the original XML and a human-readable representation generated from the XML are available.
Yes. The web interface includes a tool for creating invoices and converting them to the required Peppol BIS 3 XML format. This is particularly useful for users whose accounting system does not yet generate e-invoices.
In the web interface, you can use a tool to create and convert invoices. However, with direct API integration, the client system must submit a valid XML file compliant with UBL 2.1 and Peppol BIS Billing 3.0; the public API is not intended for converting arbitrary input formats.
The basis consists of invoices, correction documents, credit memos, and self-invoices in accordance with the supported Peppol BIS profile. The specific type is identified in XML by the document code and must correspond to its actual business meaning.
These types can be created in the SOFTIP Digital Mailbox web interface. Always issue a correction based on the actual legal and accounting nature of the document.
A standard credit memo in UBL CreditNote uses code 381 – Credit note. Peppol distinguishes between a separate CreditNote XML structure and a separate credit document code list.
Yes. SOFTIP Digital Mail supports attachments, such as PDFs, image files, and others. The maximum size of the entire invoice, including all attachments, is 10 MB.
Yes. A QR code can be a separate image attachment or part of a PDF attachment. However, the e-invoice itself must remain a valid structured XML document.
The document passes through states such as NEW, VALIDATED, PREPARING, READY, and SENDING. The final successful state is DELIVERED. INVALID indicates a validation failure, TEMPORARY_FAILURE indicates a temporary problem, and FAILED indicates a definitive delivery failure after all attempts have been exhausted or a negative confirmation has been received.
A received document can have the status NEW, READ, DOWNLOADED, or ACKNOWLEDGED. These statuses help distinguish whether a document has merely been received, viewed, downloaded, or whether its receipt has been confirmed by a downstream system.
Yes. The dashboard provides a monthly overview of the number of invoices sent and received and displays their statuses. This allows customers to see both the volume of processed invoices and the documents that require attention.
SMP (Service Metadata Publisher) is a directory component that publishes information about where a Peppol participant is registered, what types of documents it can receive, and to which technical address they should be delivered. For a given Participant ID, incoming messages are routed to the provider listed in the SMP.
SML (Service Metadata Locator) is Peppol’s discovery layer. It helps the sender find the correct SMP for a specific Peppol ID. Simply put: SML indicates which directory to search, and the SMP provides the specific delivery details.
AS4 is a secure technical protocol used by Peppol Access Points to exchange messages. It defines a standardized method for transmission, security, and delivery confirmation between providers.
Yes. The solution is ready for integration with SOFTIP systems as well as with other ERP or accounting solutions. The public REST API covers document validation and submission, retrieving received invoices, status tracking, downloading attachments, and other integration operations.
No. You can use SOFTIP Digital Mailbox via a web interface or integrate it with another information system via an API.
An API key in the X-API-KEY header or a JWT Bearer token is supported. Access to the organization's data is tied to the user account and its permissions.
Yes. Depending on the permissions assigned, a single account can have access to one or more organizations. The API provides a list of organizations available to the logged-in user.
A unique Idempotency Key is used when sending data. Repeated submissions with the same key are rejected, which helps prevent unwanted duplicates. The API also returns a transaction ID, status, and checksum for the received file.
Yes. The validation endpoint verifies file rules, XML schemas, and Schematron business rules without creating a submission transaction. It is suitable for integration development and testing.
The API supports multiple strategies: retrieving undownloaded documents, retrieving by status, or retrieving from a specific date and time. Documents can be paginated, downloaded as the original XML, and then acknowledged as received.
Yes, the integration can use polling to periodically retrieve documents and statuses. The current public API also includes webhook registration and an event schema for selected failure statuses, specifically FAILED and REJECTED. We recommend verifying the specific range of events against the current Swagger documentation during implementation.
Yes. The API allows you to download the original document, the PDF or HTML version, and individual attachments based on the transaction ID and the attachment's serial number.
In self-billing, the document may flow in the opposite direction, but the corner designations remain linked to the business roles of the supplier and the customer.
The current Swagger test version is available at publicapi.test.softipdigitalnypostar.sk/swagger. It contains endpoints, data models, and an authentication description; for production deployment, use the parameters and addresses assigned by SOFTIP.
Yes. SOFTIP acts as a certified Peppol Access Point Provider, and according to internal records, product certification for the SOFTIP Digital Mailbox solution was completed in October 2025. The solution implements Peppol requirements for addressing, transmission, security, and statistical reporting.
SOFTIP has an integrated management system that includes, among other things, ISO/IEC 27001 for information security, ISO/IEC 27018 for the protection of personal data in the cloud, ISO 22301 for business continuity, and ISO/IEC 20000-1 for IT service management. The system is regularly reviewed through certification and surveillance audits.
The certification of the integrated management system was conducted by auditors from the certification body CERTICOM. SOFTIP publishes the certificates on its website in the Management Systems section.
SOFTIP Digital Mailbox is operated on the Amazon Web Services cloud. According to the Terms and Conditions, content may be stored on remote storage servers in the Slovak Republic, other EU member states, and countries within the European Economic Area.
Access is controlled by user accounts and permissions. The integration interface supports authentication via an API key or a JWT Bearer token, and authorization restricts access to the organizations and operations assigned to a specific account.
Documents and transactions related to those documents are retained in the application for six months. This is for operational retention purposes related to the service and does not fulfill the customer’s legal archiving obligation.
No. The user is required to store invoices and output documents using their own resources as well. As of January 1, 2027, according to current guidelines, the payer must retain electronic invoices in their original XML format for ten years following the end of the calendar year to which they relate.
SOFTIP combines a certified Peppol solution, expertise in enterprise systems, over 14,000 customers, integrated security and process standards, a local help desk, and the option to choose garant response times. Instead of an isolated mailbox, you’ll gain a partner who understands invoicing, ERP, and integrations.
The basic statutory deadline remains 15 days from the delivery of the goods or services, unless otherwise specified by law. According to the FRSR, an e-invoice is considered issued only upon its transmission; therefore, the issue date should be the same as the transmission date.
Internal processes must be set up so that the invoice is sent on the date specified as the issue date. Simply receiving the invoice for processing before midnight is not sufficient if the invoice is not sent until the following day.
In the standard process, a certified delivery service provider automatically reports the selected data. Therefore, the customer does not need to manually enter each invoice into a separate form.
According to the Financial Administration’s FAQ, the fine for failure to report, incorrect reporting, or late reporting can reach 10,000 EUR, and up to 100,000 EUR in the case of a repeat violation. The law and methodology also address obvious errors and proven failures on the part of the provider; each specific case must be assessed individually.
Effective January 1, 2027, taxpayers must retain electronic invoices for ten years following the end of the calendar year to which they relate. According to the Financial Administration’s guidelines, they must be retained in their original XML format.
A confirmation of dispatch or delivery does not replace the archiving of the invoice itself. The provider retains operational logs regarding receipt and delivery for at least six months; however, the customer must fulfill their own legal obligation to archive the invoice.
For invoices delivered via a certified delivery service, this is not a general requirement for the transmission via Peppol itself. The law recognizes an electronic signature or seal as one of the methods for ensuring the authenticity of origin and the integrity of content in other forms of electronic invoicing.
Peppol is an international network that technically enables cross-border exchanges with participating members. However, the Slovak mandatory regime, effective January 1, 2027, applies initially only to domestic transactions; according to the current schedule, the extension of the mandatory regime to cross-border transactions will take effect on July 1, 2030.
That's okay. Peppol is an interoperable network: both the sender and the recipient can use different certified providers. Routing is performed based on the Peppol ID and the data published in the SMP.
For incoming transactions, only one provider may be specified for a given Participant ID in the SMP. For outgoing transactions, an entity may have contracts with multiple providers; the specific selection depends on the system configuration and contractual relationships.
The entity contacts the new provider, who will handle the changeover process. Technical migration in Peppol/SMP uses a migration code: the original provider sets it up and passes it on to the new provider; after successful registration, the link is updated. According to a direct statement from the FRSR, there are no plans for an automatic webhook notification to the original provider. Upon termination of the contract, the original provider is required to deregister the entity from the central SMP within three business days at the latest.
After the active provision of the service ends, the account will remain accessible for two more months, though active features will no longer be available. The customer must download their data and outputs no later than the end of this period; after it expires, the account and its contents will be permanently deleted.