Question 1

What is VAT?

Accepted Answer

Value added tax is a consumption tax charged on taxable supplies and reported by businesses to the relevant authority. Its economic burden is generally intended to fall on the final consumer.

Question 2

Why does B2B or B2C matter for tax?

Accepted Answer

B2B means a supply to a business acting for its economic activity; B2C usually means a supply to a private or non-business customer. A company-like name alone is not sufficient evidence.

Question 3

What does reverse charge mean?

Accepted Answer

Under reverse charge the supplier generally invoices without supplier-accounted local VAT and the customer reports the tax under its local rules. It does not apply automatically to every foreign invoice.

Question 4

How is an EU VAT number validated?

Accepted Answer

VIES queries the status supplied by EU Member States for a VAT number. A valid result supports B2B classification but does not replace checks of contract, recipient and actual use.

Question 5

When may an invoice be issued without VAT?

Accepted Answer

An invoice without stated VAT needs a supportable reason. “Foreign customer” alone is insufficient because reverse charge, exemption, destination-country VAT or local registration may apply.

Question 6

What are place of supply and place of goods supply?

Accepted Answer

Place of supply applies to services, while place of goods supply applies to goods. These tax connecting factors are not necessarily the billing address, payment country or supplier establishment.

Question 7

What are OSS and IOSS?

Accepted Answer

OSS allows certain B2C supplies across EU countries to be reported through one Member State. IOSS covers certain distance sales of low-value imported goods and has additional conditions.

Question 8

How do export and import differ for tax?

Accepted Answer

An export is movement of goods out of the EU VAT territory; an import is entry of goods from a third country. Export exemption and import VAT are separate questions.

Question 9

When may foreign tax registration be required?

Accepted Answer

Foreign registration does not depend only on turnover or customer country. Stock, domestic supplies, own imports, installation supplies and fixed establishments are common triggers.

Question 10

What does Tax Decision Confidence mean?

Accepted Answer

Confidence increases when parties, countries, VAT IDs, supply type, goods movement, amounts and rule version align. It decreases with missing, conflicting or inferred data.

Question 11

When does Dynafis require manual tax review?

Accepted Answer

Manual review is a controlled state, not a technical failure. Common reasons include unclear customer status, unknown goods movement, unavailable VAT validation, mixed supply or registration risk.

Question 12

Does Dynafis replace tax advice?

Accepted Answer

Dynafis supports operational decisions through extraction, rules, warnings, sources and audit trails. Bespoke contracts, restructurings, permanent establishments or disputed interpretations require professional assessment.

Question 13

Which document and invoice formats does Dynafis support?

Accepted Answer

Supported inputs include PDF, image and text documents as well as structured formats such as UBL, CII, XRechnung, ZUGFeRD or Factur-X and KSeF-related XML data when the relevant module is enabled. Dynafis preserves the original file and maps detected content into the canonical invoice model.

Question 14

Is a PDF file already a structured e-invoice?

Accepted Answer

No. A normal PDF primarily represents the visual invoice. A structured e-invoice contains defined machine-readable data, for example UBL or CII. Hybrid formats such as ZUGFeRD or Factur-X combine a PDF representation with embedded XML.

Question 15

Which invoice data does Dynafis extract automatically?

Accepted Answer

Dynafis can detect supplier and customer details, addresses, tax IDs, invoice numbers, dates, currency, net, tax and gross amounts, line items, and order or contract references. Coverage depends on document quality and format; uncertain values are flagged rather than silently guessed.

Question 16

What happens when invoice data cannot be extracted reliably?

Accepted Answer

Dynafis shows the affected value, extraction confidence and original context. Depending on impact, it creates an information item, warning or blocker. A manual confirmation is logged, while the original document remains unchanged.

Question 17

What is the review queue and when is manual review required?

Accepted Answer

The queue contains documents with missing required data, conflicting amounts, tax uncertainty, format errors or export blockers. Fully and traceably reviewed documents should not reappear as open risks unless a relevant change occurs.

Question 18

How does Dynafis distinguish domestic and cross-border cases?

Accepted Answer

Matching country details often indicate a domestic case but are not sufficient on their own. Dynafis also considers place of supply or delivery, actual goods movement, customer status, tax ID used, establishments, marketplace roles and registrations. Incomplete context triggers confirmation or manual review.

Question 19

How does Dynafis resolve exchange rates for invoices?

Accepted Answer

Dynafis selects the rate using the transaction-relevant date and configured country rule. Source, rate, retrieval time and conversion are stored in the evidence context. When no reliable rate is available or the relevant date is unclear, Dynafis does not substitute an estimate.

Question 20

What is KSeF and how does Dynafis support the process?

Accepted Answer

KSeF is Poland’s structured invoice system. Dynafis can validate data against the active schema, process submissions using configured credentials, capture status and official references, and route errors back to the review queue. Production submissions require the necessary activation and authorization.

Question 21

How does Peppol work and is an Access Point agreement required?

Accepted Answer

Dynafis validates the document, resolves or confirms the recipient identifier and hands it to a connected Peppol Access Point. Whether the Dynafis customer needs a direct agreement or access is included in the Dynafis service depends on the selected provider and contract model and must be configured before production use.

Question 22

What happens when KSeF or Peppol rejects a submission?

Accepted Answer

Dynafis marks the submission as unsuccessful, stores the external response and links the error to the document and audit trail. Depending on the cause, a technical retry, data correction, or a new or corrective invoice may be required. A rejection is never recorded as successful delivery.

Question 23

Which exports and handoff packages does Dynafis provide?

Accepted Answer

Depending on configuration, Dynafis provides structured invoice data, accounting handoffs such as DATEV, country-specific e-invoice artifacts, CSV or JSON data and evidence packages. The export view only shows enabled formats and blocks handoff while relevant review items remain open.

Question 24

What happens during monthly close in Dynafis?

Accepted Answer

Before closing, Dynafis checks open blockers, missing exchange rates, unresolved documents and required exports. A closed period receives a clear status and a traceable archive or handoff package. Later changes must follow the configured correction or reopen workflow.

Question 25

How does the client portal work?

Accepted Answer

The portal separates client access from the internal workspace. Authorized users upload documents, see tasks assigned to them and answer questions without access to other clients or internal administration areas. Each relevant action is associated with the document and user.

Question 26

How do marketplace and shop integrations work?

Accepted Answer

A connection is enabled in the integration catalog and configured with the required credentials. The adapter imports orders, invoices, fees or payouts into the canonical model. Tax decisions, validation and export then use the same central Dynafis services as manually uploaded documents.

Question 27

How do the Dynafis API and webhooks work?

Accepted Answer

API access is protected by keys, scopes and workspace permissions. Integrations can create documents, retrieve status and consume permitted decisions or exports. Webhooks deliver events with stable technical codes so receiving systems can process changes idempotently.

Question 28

How does Dynafis store originals, evidence and the audit trail?

Accepted Answer

Dynafis separates the unchanged original from the canonical working model. Hashes, extraction and rule versions, review decisions, external responses and relevant user actions are linked in the evidence and audit context. Access and retention follow role, workspace and configured policy.

Question 29

How does Dynafis handle corrections after a completed review?

Accepted Answer

A correction does not silently overwrite the previous state. Dynafis stores the new data version, logs reason and user, and reruns dependent checks such as tax decision, exchange rate, format validation or export readiness. Unaffected results that were already confirmed remain preserved.

Question 30

Do Tax Check, invoice review, exports and the API use the same tax logic?

Accepted Answer

Yes. Document extraction and confirmed supply context feed the central Global Tax Decision Engine. Tax Check, invoice details, review queue, KSeF, Peppol, exports and the API display or consume its versioned result. FAQ and UI copy do not calculate a separate tax decision.

Help & documentation

Frequently asked questions

Tax cases & guides

Set up a workspace

Choose country and tax profile

Upload the first invoice

Use demo data

Upload PDF, XML and image files

OCR and text recognition

Einheitliches Rechnungsmodell

Common upload errors

What is the review queue?

Understand confidence score

Review AI suggestions

Manual corrections

Approval process

KSeF validator

Check XRechnung

Check ZUGFeRD / Factur-X

Peppol / EN16931

FatturaPA / Italy

Facture électronique / France

DATEV export

CSV/XLSX export

XML artefacts

Understand export packages

Free mode

AI credits

Micro-check one-off payment

Check packages

Invoice/receipt download

Sandbox vs live payments

Create clients

Invite clients

Document requests

Check usage behaviour

Admin area

Payments and invoices

Micro-checks in admin

Webhooks

System health

Audit logs

Data storage

Retention periods

Temporary files

Roles and permissions

API keys/webhooks

Micro-checks

Buy a report

Validators

What does Dynafis check automatically?

What does Dynafis not check as binding advice?

What does Human Review First mean?

How secure are my invoices?

What does a warning status mean?

Why is a regular PDF not a structured e-invoice?

Connect the KSeF API to Dynafis

Verify FA(3) fields and lines before KSeF

Submit KSeF corrections from monthly close

Why is no correction invoice created?

KSeF status, UPO, income and expenses

EU B2B services and reverse charge

EU B2C and digital services

Classifying SaaS, software development and licences

Intra-Community supply and acquisition

EU distance sales, OSS and IOSS

Foreign stock and fulfilment

Chain and triangular transactions

Services to customers outside the EU

Export, import VAT and evidence

Marketplaces, platform roles and fees

Platform fees and reverse charge

Foreign currency and VAT exchange rates

Fixed establishment and actual service recipient

How the Global Tax Decision Engine works

Resolving conflicting tax data

Required fields on international invoices