Case Study: A Taxdoo Alternative for Amazon and Shopify Sellers Expanding Across the EU

Finding a Taxdoo alternative for Amazon and Shopify is not just about swapping tools. For many established sellers, it’s about protecting existing DATEV workflows, avoiding VAT filing gaps, and keeping multi-channel data (Amazon, Shopify and local platforms) under control.

In this case study, we look at how a German multichannel e-commerce brand migrated from Taxdoo to hellotax for Spain, France, Poland and Czech Republic – while keeping their German accounting flows and DATEV exports intact.

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1. Background: German Amazon & Shopify brand with multi-channel growth

Our client is a German GmbH selling physical products online through multiple channels:

• Home country: Germany

• Sales channels:

  • Amazon (EU marketplaces)

  • Shopify online shop

  • Several additional local marketplaces and platforms

• Turnover range in EU & UK: Between 1 and 10 million €

• Warehousing: At least two EU locations outside Germany

• Existing VAT structure:

  • VAT registration in Germany

  • VAT registrations abroad handled via Taxdoo

  • OSS-based reporting in the EU

  • DATEV-based accounting with a German Steuerberater

Like many mature sellers, they had gradually outgrown a simple “Amazon-only” setup. Amazon, Shopify and additional local platforms all generated cross-border B2C sales into Spain, France, Poland and Czech Republic – each with its own VAT rules, thresholds and reporting formats.

When Taxdoo announced that its focus would move away from classic VAT compliance, the seller started looking for a Taxdoo alternative for Amazon and Shopify that could:

• Take over VAT compliance in ES, FR, PL and CZ

• Keep DATEV exports stable for their German accounting team

• Handle OSS data analysis and exports

• Offer Proforma invoices and Intrastat at transparent, predictable costs

They also had a hard deadline: the takeover from Taxdoo was planned for 01.04.2026.

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2. The challenge: Multi-channel VAT, Taxdoo exit and DATEV continuity

At the start of the project, the client’s main challenges were:

2.1 Taxdoo takeover with a fixed date

They wanted to end their Taxdoo contract and switch on 01.04.2026. That meant:

• No filing gaps between the last Taxdoo period and the first hellotax period

• Smooth transfer of powers of attorney (PoA) in Spain, France, Poland and Czech Republic

• Enough buffer time to avoid late filings or issues with local tax authorities

2.2 Amazon + Shopify + local platforms in one VAT engine

The seller was not only on Amazon; they also operated:

• A Shopify shop with EU-wide sales

• “A lot of extra local platforms”, as they described it

For VAT, that created three needs:

• Consolidation of all channels (Amazon, Shopify, local platforms) into a single VAT data pipeline

• Correct VAT classification per country (ES, FR, PL, CZ) and per channel

• Reliable OSS data that reflects sales from all platforms, not just one marketplace

2.3 DATEV export and SKR03 mapping

Their German accountant relied on DATEV as the core accounting system, using the SKR03 chart of accounts. Any Taxdoo alternative for Amazon and Shopify had to:

• Deliver DATEV-compatible exports (SKR03)

• Keep booking logic clear and stable for the accountant

• Avoid a massive remapping or rebuild of their accounting setup

2.4 Extra compliance layers: OSS, Proforma, Intrastat

On top of “standard” VAT:

• They needed OSS data analysis and export files, as they preferred to keep OSS filing in-house or with their advisor.

• They wanted Proforma invoices as a standardised part of their process.

• They had Intrastat obligations linked to cross-border movements of goods and wanted a predictable price per Intrastat report.

Put simply: they needed a specialised Taxdoo alternative for Amazon and Shopify that understood VAT in ES, FR, PL and CZ, could talk to DATEV, and could handle the “real life” extras – OSS, Proforma and Intrastat.

f you are currently planning or already going through a Taxdoo migration, it can help to understand the bigger picture behind tools, VAT engines and German accounting. In our in-depth guide on Taxdoo alternative for DATEV VAT exports, we explain how to separate your VAT layer from your accounting system, what to check in your DATEV files, and which migration steps to follow so your German bookkeeping continues smoothly even when your VAT provider changes. You can read it here.

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3. Why this seller chose hellotax as a Taxdoo alternative for Amazon and Shopify

After several discussions and a review of test files, the client chose hellotax as their Taxdoo alternative for Amazon and Shopify for four main reasons.

3.1 Multi-channel VAT engine (Amazon, Shopify, local platforms)

hellotax was able to:

• Connect to Amazon via API

• Connect to Shopify and ingest shop data

• Integrate additional local platforms via imports and mappings

This gave the client one VAT engine that:

• Aggregates all sales across channels

• Classifies transactions by country, VAT rate and type of transaction

• Prepares country-specific VAT returns and OSS exports based on the full picture

3.2 Focus on EU VAT compliance (not full accounting)

The seller did not want to replace their German accounting system. They wanted:

• A VAT layer that takes care of registrations, filings, OSS analysis and exports

• To keep DATEV as the single source of truth for full accounting and financial statements

hellotax fits this model:

• We specialise in VAT and cross-border compliance

• We provide DATEV-compatible exports, but we do not try to replace the accounting system

• The German Steuerberater stays in control of accounting, corporate tax and year-end work

3.3 DATEV test exports and SKR03 compatibility

Before signing, the client requested:

• DATEV test exports

• Example VAT reports

This allowed them and their advisor to verify:

• That our DATEV export fits SKR03

• That VAT codes and booking logic are understandable and consistent

• That the accountant could import our files without heavy rework

Seeing real test files was a key factor for choosing hellotax as their Taxdoo alternative for Amazon and Shopify.

3.4 Transparent pricing for Intrastat and extras

The seller also appreciated:

• A clear special price for Intrastat at 79 € per report

• A 10% discount as an established seller on monthly VAT fees

• Clear display of recurring prices for:

  • VAT filings in ES, FR, PL and CZ

  • Proforma service

  • DATEV export

  • OSS module (Soft or Full Service)

This helped them budget the switch from Taxdoo to hellotax over a full year.

If you’re mainly worried about how your accounting will cope with the change, it’s worth looking at a real example focused just on DATEV. In our Taxdoo DATEV export case study, we explain how a German e-commerce seller kept their existing accountant and workflows while switching the VAT layer and DATEV exports over to hellotax – without disrupting monthly bookkeeping. You can read the full story here,

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4. The solution: VAT layer for Spain, France, Poland and Czech Republic

The agreed setup looked like this.

4.1 Countries covered

hellotax coverage:

• Spain (ES) – VAT takeover and ongoing filings

• France (FR) – VAT takeover and ongoing filings

• Poland (PL) – VAT takeover and ongoing filings

• Czech Republic (CZ) – VAT takeover and ongoing filings

Client’s existing setup:

• Germany (DE) – accounting and DATEV remain with their existing advisor

• OSS – handled via exports from hellotax and filing by the client or their advisor

4.2 Services in the package

• VAT registrations / takeovers

  • Takeover of existing VAT numbers where already registered

  • Coordination with local tax offices during the transition from Taxdoo

• Ongoing VAT filings

  • Monthly / quarterly VAT returns (per local rules)

  • EC Sales Lists and recapitulative statements where needed

• DATEV export

  • Monthly DATEV-compatible export of sales-side data

  • SKR03-based structure matching the client’s accounting setup

• OSS handling

  • OSS Soft module: OSS data analysis and export file

  • Optional upgrade to OSS Full Service if they later want hellotax to submit OSS directly

• Proforma invoices

  • Proforma service as part of the running package, supporting logistics, B2B partners and customs

• Intrastat

  • Intrastat reports at a special price of 79 € per report

This configuration gave the client a dedicated Taxdoo alternative for Amazon and Shopify, focused on VAT and reporting in ES, FR, PL and CZ, without touching their core German accounting.

If Poland is also part of your setup, you might find it helpful to see how other sellers handled the change in that specific country. In our separate case study on a Taxdoo alternative for Poland VAT, we show how a German Amazon seller successfully moved their Polish (and Czech) VAT filings, OSS analysis and proforma invoicing from Taxdoo to hellotax without gaps in compliance. You can read the full case study here.

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5. Implementation: From Taxdoo to hellotax with a defined cut-over date

5.1 Aligning the Taxdoo end date and the hellotax start date

The planned Taxdoo takeover date was 01.04.2026. To make this work:

• We aligned the last Taxdoo filing periods for ES, FR, PL and CZ.

• We defined the first period that would be fully handled by hellotax.

• We ensured that powers of attorney and local tax office registrations would be ready in time, with enough buffer before the first deadlines.

The client was advised to confirm the order well before the cut-off date so that the 4–6 week takeover window could be fully used.

5.2 Onboarding and data connections

After the client accepted the offer and completed the order link:

1. The case was handed over to the hellotax Account Management team.

2. The client received an onboarding email with:

   • A request to connect Amazon and Shopify

   • Instructions for importing data from local platforms

   • A list of documents needed for each country (company documents, IDs, registrations, etc.)

Once connections were set up:

• Our system started pulling data from Amazon and Shopify.

• Data from local platforms were mapped into the same structure.

• Early test periods were analysed to validate VAT logic and DATEV file structure.

5.3 DATEV test exports and accountant approval

As part of the implementation:

• We generated DATEV test exports using SKR03.

• The client and their accountant checked:

  • Account mapping

  • VAT code consistency

  • Import into DATEV

Minor adjustments (e.g. specific account numbers for certain marketplaces) were made to match the accountant’s preferences.

This step is often decisive when picking a Taxdoo alternative for Amazon and Shopify: if the accountant is happy with the DATEV exports, the transition is much smoother.

5.4 OSS and Intrastat setup

For OSS:

• hellotax configured the OSS Soft module:

  • All relevant OSS transactions from Amazon, Shopify and local platforms are tagged.

  • A complete OSS export file is generated each period.

• The client uses this file internally or forwards it to their advisor for the actual OSS submission.

For Intrastat:

• We identified which flows (dispatches/arrivals) triggered Intrastat in Spain, France, Poland and Czech Republic.

• We agreed on the cadence and format for Intrastat reports at 79 € per report.

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6. Results: A stable Taxdoo alternative for Amazon and Shopify

After the go-live, the client achieved three main outcomes.

6.1 Seamless migration from Taxdoo

The transition from Taxdoo to hellotax:

• Happened around the planned 01.04.2026 date

• Did not create gaps in VAT filings

• Included timely transfer of PoA and registrations for ES, FR, PL and CZ

From the seller’s perspective, the change was “boring in the best way”: filings continued, but the underlying provider changed.

6.2 One VAT engine for Amazon, Shopify and local platforms

Instead of juggling separate tools or exports, the client now has:

• A single VAT engine (hellotax) for:

  • Amazon

  • Shopify

  • Local platforms

• One classification logic for:

  • Country of dispatch and destination

  • VAT rates per country

  • Transaction type (local sale, OSS sale, intra-EU movement, export, etc.)

This simplified their view on VAT and made the Taxdoo alternative for Amazon and Shopify feel like a natural continuation, not a downgrade.

6.3 DATEV-ready exports and less manual work

With SKR03-based DATEV exports from hellotax:

• The German accountant receives monthly files in a familiar format.

• Manual adjustments in DATEV are reduced.

• The accounting team stays in control of financial statements and corporate taxes, while hellotax focuses on VAT and compliance.

At the same time:

• OSS exports are generated automatically from all channels.

• Proforma invoices and Intrastat reports are handled within the same framework.

The seller can now focus on products, pricing and channel expansion, instead of worrying about how to replace Taxdoo’s VAT features.

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7. Lessons for other Amazon and Shopify sellers leaving Taxdoo

This project highlights a few practical lessons for other online sellers considering a Taxdoo alternative for Amazon and Shopify:

1. Plan your takeover date early

   • Set a clear cut-off date for Taxdoo and work backwards from VAT deadlines and PoA transfer times.

2. Test DATEV exports before you commit

   • Ask for sample DATEV files and check them with your accountant. If SKR03 mapping works out of the box, you save a lot of time.

3. Include all channels in your VAT engine

   • Don’t focus only on Amazon. Make sure your Shopify store and local platforms are also covered in VAT and OSS analysis.

4. Separate VAT from full accounting

   • Use a specialised VAT solution (like hellotax) for registrations, filings, OSS and Intrastat, and let DATEV remain your accounting “home base”.

5. Think beyond basic VAT filings

   • If you need Proforma invoices and Intrastat, include them in your long-term setup rather than treating them as afterthoughts.

8. External resources

For readers who want to double-check the official rules and technical background behind the case study, these neutral resources are a good starting point:

1. EU VAT and OSS rules
   The European Commission’s page on the One Stop Shop (OSS) for e-commerce explains how distance sales, thresholds and OSS reporting work across the EU, including which supplies can be declared via OSS and when local VAT registrations are still required.

2. DATEV – background and interfaces
   DATEV’s own information pages (including their international sections) outline how DATEV works with tax advisors and companies, which data formats are supported, and how digital documents and accounting data are handled in their systems.

3. Amazon VAT Calculation Service
   Amazon’s official VAT Calculation Service documentation and FAQs explain how VAT is calculated on Amazon orders, which VAT rates are applied based on registrations, and how the service interacts with invoice generation. This is useful if you sell via Amazon and want to understand the “raw” tax logic behind your transactions.

4. Shopify VAT invoices (EU & UK)
   Shopify’s help centre has a guide on VAT invoices for the EU and UK that shows what information is included on invoices, how automatic invoice generation works, and what merchants need to configure in their Shopify admin.

You don’t need to read all of these to work with hellotax, but they are handy references if you or your accountant want to see the official frameworks behind VAT, OSS and DATEV exports.

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9. Next step: Explore your own Taxdoo alternative for Amazon and Shopify

If you’re running Amazon and Shopify (plus maybe a few local platforms) and are currently using – or leaving – Taxdoo, you don’t have to rebuild your finance stack from scratch.

hellotax can:

• Take over VAT compliance in your key EU countries

• Generate clean DATEV exports (e.g. SKR03) for your accountant

• Provide OSS data analysis and export files

• Handle extras like Proforma invoices and Intrastat at transparent prices

👉 Book a free consultation with hellotax and let a VAT specialist review your current setup, your Taxdoo timelines and your DATEV requirements. Together, we can design a migration plan that gives you a stable, scalable Taxdoo alternative for Amazon and Shopify – without disrupting your day-to-day business.