Comparison May 3, 2026 · 9 min read

Stampli vs ininvoice: comparison for Spanish SMEs

Stampli is a US accounts payable automation platform built for mid-market North American companies. ininvoice is a Spain-native AP tool for SMEs handling 100-2,000 invoices a month. This page explains what Stampli does well, where it doesn't fit a Spanish SME, when ininvoice is the better choice, and when it isn't.


What Stampli is and who it's built for

Stampli, founded in 2015 in Mountain View, California, is an AP automation platform centered on collaboration and contextual communication around the invoice. Its flagship feature is Billy the Bot, an AI assistant that learns from team behavior to automate GL coding, approvals, and matching.

Its typical customer is a mid-market North American company (100-1,000 employees) running US-family ERPs: NetSuite, Sage Intacct, QuickBooks Online, Microsoft Dynamics, Oracle. The strength sits in internal collaboration over each invoice and in progressive automation based on learning team behavior.

Where Stampli doesn't fit a Spanish SME

Five recurring frictions:

1. Enterprise pricing with no public list. Stampli doesn't publish tariffs. Sales contact required. Public mentions on review platforms place entry pricing in the low three-digit USD range per user per month, with annual minimums and feature-based modules.

2. Annual contract. Typical 12-month spend commitment. For a first AP automation rollout, that's a heavy commitment.

3. Zero support for Verifactu, SII, and FacturaE. Stampli is built for US tax reality (1099, W-9, ACH). No Verifactu module, no SII, no FacturaE 3.2.x. For a Spanish SME that forces an external compliance layer.

4. No integrations with Spanish ERPs. Stampli integrates with NetSuite, QuickBooks, Sage Intacct, Microsoft Dynamics, Oracle, Acumatica. Holded, Spanish Sage 50/200, A3 ERP, Contasol or Quipu aren't there. Custom development is required.

5. English-only support on US time zones. The Customer Success team operates mainly in English on PST/EST. Day-to-day account conversations happen in English.

Feature-by-feature comparison

FeatureStampliininvoice
Public pricingNot published, on requestEUR 249/month up to 300 invoices/month
CommitmentTypical annual contractNo commitment
Activation timeVariable, weeks with guided onboardingInstant, no consultant
Implementation costVariable, usually with setup feeNone
Line-level OCR / IDPYes, via Billy the BotYes
Three-way matching (invoice / PO / delivery note)YesYes: 2% or EUR 1.50/line tolerance (OR-mode)
Duplicate detectionYesMulti-signal (supplier + number + date + amount + hash)
Conversational assistant on the invoiceYes: Stampli advantageNo
Communication threads on invoiceYes: Stampli advantageLimited
Integrated payments (US ACH, virtual cards)Yes: Stampli advantageNo (out of scope)
Verifactu complianceNoYes, designed for Verifactu/SII/FacturaE
Works with Holded / Sage 50/200 / A3NoImportable CSV export
Native Spanish (es-ES) supportMainly EnglishYes, team based in Spain
Data hosted in the EUMulti-region per contractYes, EU (Frankfurt)
0-100 risk score per invoiceApproval rulesYes, explicit numeric score

Where Stampli wins, we call it out. The product is mature, its AI assistant has years of iteration, and US payment coverage is stronger. Where it doesn't fit a Spanish SME is in local tax compliance, integrations with national ERPs, and pricing.

Pricing: Stampli vs ininvoice

ininvoice publishes its price: EUR 249/month, up to 300 invoices/month, no implementation cost, no commitment (cancel with one month's notice).

Stampli operates on on-demand pricing. Public reviews (G2, Capterra) mention rates from the low three-digit USD per user per month range, with annual minimums, feature fees, and a setup fee. First-year TCO usually lands in the high five figures for a Spanish SME.

The question isn't only how much it costs. It's how much it costs before you find out whether it works for your company. With ininvoice, you're processing real invoices instantly and validating whether matching works for your reality.

Spanish tax compliance: the critical factor

Spain has three active regulatory fronts:

  • Verifactu: mandatory for companies from January 1, 2027.
  • Mandatory B2B e-invoicing: issuers above EUR 8M from September 2026.
  • SII: 4-day VAT reporting from the bookkeeping entry.

Stampli isn't built around this framework. ininvoice is. It's a Spanish product designed with SII, Verifactu, and FacturaE as starting points. Check any specific case with your tax advisor.

When Stampli IS the right call

Stampli is the right decision when:

  • Your company is a Spanish subsidiary of a US group that has already standardized on Stampli.
  • You operate on NetSuite, QuickBooks, or Sage Intacct and Stampli's native integration adds clear value.
  • You need the Billy the Bot conversational assistant for internal coordination across distributed teams.
  • Your finance team operates in English on US time zones.
  • Your volume is enterprise (1,000+ invoices/month) and enterprise pricing is acceptable.

When to pick ininvoice

  • You process between 100 and 2,000 supplier invoices a month.
  • Most of your suppliers are Spanish.
  • Your ERP is Holded, Sage 50/200, A3, Contasol, Quipu, or Excel plus an external advisor.
  • You need to comply with SII and prepare for Verifactu without a year-long IT project.
  • You want to validate ROI before locking into an annual contract.
  • You need Spanish-language support and data hosted in the EU.

Want to see invoice-PO-delivery note matching on your own invoices?

ininvoice processes your real invoices instantly, no consultant, no implementation project. Book your demo.

Frequently asked questions

How much does Stampli cost in Spain?
Stampli doesn't publish pricing. Public reviews mention ranges starting in the low three-digit USD per user per month with annual minimums. First-year TCO typically in the high five figures.
Does Stampli offer Spanish-language support?
Customer success and support operate mainly in English on US time zones. Day-to-day work with the Stampli team is in English.
Does Stampli integrate with Holded, Sage 50/200, or A3?
Native integrations are NetSuite, QuickBooks, Sage Intacct, Dynamics, Oracle, and Acumatica. Holded, Spanish Sage 50/200, A3, and Contasol aren't on the list. ininvoice exports to all three.
Is Stampli compliant with Verifactu and SII?
No. Stampli has no Verifactu, SII, or FacturaE module. ininvoice is built around all three.
Can I migrate from Stampli to ininvoice?
Yes. Export supplier, PO, and invoice history via CSV/API and connect your mailbox to ininvoice. Typical parallel run: 1-2 weeks.
Does ininvoice have a Billy the Bot-style AI assistant?
Not in equivalent form. Our focus is automatic matching and exception routing. A conversational layer on the invoice isn't a product priority.

Get started this week

EUR 249/month · up to 300 invoices/month · no commitment · no implementation cost · instant activation.

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