VATCalc calculates the correct tax rate to apply. Clearvo takes the finished invoice and gets it cleared by the tax authority. These tools solve different parts of the same compliance problem — and often work together.
The e-invoicing mandate landscape involves two separate obligations that are easy to conflate: determining the correct tax liability on a transaction, and submitting a structured invoice to the tax authority in the mandated format. VATCalc solves the first. Clearvo solves the second.
Takes a completed invoice — with VAT already calculated — and handles everything from there: generates the country-specific XML format (FatturaPA, KSeF FA(3), XRechnung, UBL BIS 3.0, etc.), digitally signs where required, submits to the authority or Peppol network, and returns the clearance reference. Covers all major EU mandate markets from one API call.
Calculates the correct VAT rate to apply to a transaction based on supply type, customer location, and product classification. Also covers VAT returns filing and compliance data across multiple jurisdictions. Answers "what rate applies and how much tax do I owe?" — not "how do I submit the invoice to the Italian SDI?"
Across the specific dimensions of the e-invoicing mandate problem, here is what each platform covers.
| Clearvo | VATCalc | |
|---|---|---|
| Mandate-compliant invoice formats | Generates FatturaPA, KSeF FA(3), XRechnung, Factur-X, UBL BIS 3.0, SAFT-PT, and other authority-mandated formats automatically from a standard invoice payload. | Not the primary focus. VATCalc's strength is rate determination and compliance data, not structured invoice format generation for authority submission. |
| Authority submission and clearance | Submits to Italy SDI, Poland KSeF, France DGFiP, Spain AEAT, Romania ANAF, Hungary NAV, Greece myDATA, Portugal AT, and Peppol networks. Returns clearance reference via webhook. | Not in scope. VATCalc does not submit invoices to tax authorities or manage clearance status. |
| VAT rate determination | Not in scope. Clearvo requires the VAT amount to be pre-calculated — it does not determine which rate applies to a given transaction. | Core product. Determines the correct VAT rate based on supply type, customer country, product classification, and applicable rules across 100+ countries. |
| VAT returns filing | Not in scope. Clearvo handles real-time mandate delivery — periodic VAT return preparation and filing is a separate obligation. | VAT return preparation and filing support across multiple jurisdictions. Covers the periodic reporting obligation alongside rate determination. |
| Peppol network delivery | Testbed-certified Peppol Access Point PIE001162. Buyer endpoint resolved from tax number across 26+ Peppol markets automatically. | Not a Peppol Access Point. VATCalc does not handle structured invoice delivery to Peppol network participants. |
| Finance dashboard | Dashboard shows every submission, clearance status, authority response, and rejection reason — searchable by country, customer, and date. | Compliance reporting focused on VAT liabilities, rate evidence, and return preparation — not real-time invoice clearance tracking. |
| Self-serve access | Sign up, get API keys, first invoice live the same day. Pricing published on the website. | Onboarding process varies by use case and geography. Direct comparison on self-serve speed is not straightforward. |
| Feature | Clearvo | VATCalc |
|---|---|---|
| Tax calculation (100+ countries) | ✓ | ✓ |
| US sales tax (all 50 states) | ✓ | ~ Partial |
| EU VAT & global indirect tax | ✓ | ✓ |
| E-invoicing (32 countries) | ✓ | ✗ |
| Peppol Access Point (certified) | ✓ | ✗ |
| Real-time reporting (RO/HU/GR/ES) | ✓ | ✗ |
| Self-serve signup (no sales call) | ✓ | ~ Partial |
| Published pricing & free tier | ✓ | ✗ |
Once the invoice is raised and VAT is correct, Clearvo takes it from there — format, submission, clearance, webhook.
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