Taxdoo
Founded 2016 · 42 employees on LinkedIn · 6 known investors
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Taxdoo provides accounting and VAT compliance software for e-commerce sellers, automating multichannel financial processes such as sales, returns, fees, and payments while producing GoBD-compliant, DATEV-compatible data. It handles VAT filings (UStVA, OSS, ZM) directly to tax authorities and connects to platforms like Amazon, eBay, and JTL for online merchants and their tax advisors.
Also known as TAXDOO · Taxdoo GmbH
Founders & leadership
Taxdoo was founded in 2016 by Dr. Roger Gothmann.

Investors · 6
Funding
SEC filings, press & company announcements$21M disclosed across 1 of 4 rounds · 2020–2021
- Undisclosed amountSeries BDec 2021 · 2 sources
Tiger Global (lead), 20VC, Accel, Visionaries Club
Source ↗ - $21MSeries ADec 2020 · 3 sources
Accel (lead), 20VC, HTGF, Visionaries Club
Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
Company profile
researched Aug 2026Taxdoo is a Hamburg, Germany-based financial compliance and accounting software company serving e-commerce merchants, their tax advisors, marketplaces and enterprises. Its platform ingests transaction-level data from marketplaces, online shops, ERP systems, payment providers and banks, evaluates it against applicable VAT regulations, and prepares and submits filings. Reports including the German VAT pre-return (UStVA), One-Stop-Shop (OSS) and EC sales lists (Zusammenfassende Meldung) are transmitted directly from Taxdoo Accounting to the responsible tax authorities, and transaction data is made available in the dashboard as Excel or CSV exports for line-item verification.
The product bundles bookkeeping with compliance: sales, returns, fees and payments are prepared automatically, bookings are made on a daily basis in a GoBD-compliant manner, payments are matched with revenues, and users can select among different charts of accounts and currencies. Data is delivered each morning into the tax advisor's DATEV system. Taxdoo also applies AI to check the VAT rates applied on outgoing invoices, flagging suspected errors in the customer dashboard, and offers a payroll accounting add-on. Onboarding includes a personal session in which interfaces are connected, the customer's current setup is reviewed and the first month of bookkeeping is completed jointly; it is charged once, depending on package scope. Tax advisory itself is provided by partner firms on the platform.
Historically, Taxdoo positioned itself as an API-based "Financial Operating System for e-commerce," offering apps for international VAT compliance, accounting, invoicing and payments, and opening the platform to third-party developers; ERP provider Xentral, for example, built its own Taxdoo data connectors.
Founding story
The three founders — Matthias Allmendinger, Roger Gothmann and Christian Königsheim — identified the opportunity while completing PhDs in finance and economics at the University of Hamburg, where their research into VAT showed how complex cross-border sales tax regimes were for ordinary merchants and that the problem could be addressed with automation. The company was founded in May 2016, after the founders finished their doctorates. Gothmann brought international VAT expertise from a 10-year tenure at the German ministry of finance.
Business model
Software-as-a-service sold in packages to online merchants and to tax firms, with a one-off onboarding fee charged according to package scope; tax advisory services on the platform are delivered by partner tax firms rather than by Taxdoo itself.
Subscription-style software packages plus a one-time, package-dependent onboarding charge.
Traction
As of December 2021 the company reported more than 1,700 merchant customers plus numerous tax professionals and several marketplaces across Europe, with named customers including Ankerkraut, Social Chain, Beiersdorf, air up, YFood, OmniDeal and sellvin. Headcount grew from 45 to more than 170 (reported elsewhere as around 200) people within a year of the Series A. The website currently cites over 50 interfaces and more than 1,000 users.
Latest developments
The current product positioning centres on TAXDOO Accounting, a daily-updated, GoBD-compliant multichannel bookkeeping product that transmits UStVA, OSS and ZM filings directly to tax authorities and delivers DATEV data to the customer's tax advisor each morning, complemented by AI-based checking of VAT rates on outgoing invoices, a payroll accounting add-on, and tax advisory provided by partner firms on the platform. The site also covers e-invoicing (E-Rechnung) for online merchants and private equity in the tax advisory market.
▸Full profile — market position, technology, go-to-market, geography, history, risks & controversies
Market position
Described in 2021 coverage as the leading VAT and financial compliance platform in European e-commerce, working with more than 1,700 merchants, tax professionals and marketplaces. It won the TAXCELLENCE Award 2020 as best 'Tax Technology Solution'. Coverage noted that broader fintech players such as Stripe were moving into sales tax calculation services, making the segment competitive and Taxdoo a potential partner or acquisition target.
End-to-end automation of the entire workflow — aggregation of data from multiple channels, analysis under all applicable regulations, preparation and filing of returns across the EU, and integration back into the seller's accounting system — combined with in-house VAT expertise; co-founder Roger Gothmann is described as an international VAT expert following a 10-year tenure at the German finance ministry. The company presents itself as the first multichannel e-commerce bookkeeping solution covering invoices, payment and transaction data and automated booking runs in one place, scalable from 100 to 100,000 transactions, and able to combine multiple interfaces (e.g. JTL with Amazon or eBay) without duplicate records.
Technology
API-based platform with automated connectors to more than 50 interfaces spanning marketplaces, shops, ERP systems, payment providers and banks. It automates transaction-level data ingestion, tax calculation and filings across Europe, performs daily GoBD-compliant bookkeeping, automatically matches payments to revenues, exports DATEV-compatible data, and uses artificial intelligence to verify VAT rates on outgoing invoices. The architecture is modular, with apps for individual use cases and the ability for external developers to build on top.
Go-to-market
Direct sales via product tours, 30-minute introductory consultations and demo requests on the website; content marketing through a blog, knowledge base, whitepapers, webinars and a newsletter; and partnerships with tax professionals, ERP systems and e-commerce agencies. Third-party developers can build on the platform, and ERP vendors have built their own connectors.
Online merchants selling across multiple marketplaces and their own shops, and tax advisors/tax firms with e-commerce clients; historically also marketplaces, payment providers and enterprises. A typical customer was described as selling on several marketplaces and its own shop with annual revenue of roughly EUR 5-10 million, while the largest customers were global consumer brands with revenue of EUR 150 million and above. Current services are directed exclusively at companies domiciled in Germany.
Geography
Headquartered in Hamburg, Germany, with VAT coverage and filings across the EU including dedicated content for Germany, Austria, the Netherlands, Poland and France; funding was earmarked for further European expansion. The website states that current services are offered only to companies based in Germany.
History
Founded in May 2016 in Hamburg, Taxdoo built an API-based platform for cross-border VAT and financial compliance. It won the TAXCELLENCE Award 2020 as best 'Tax Technology Solution' in December 2020 and raised a $21 million Series A the same month, led by Accel with Visionaries Club, 20VC and existing investor HTGF; Accel's Harry Nelis joined the board. Eleven months later, in December 2021, it raised a $64 million Series B led by Tiger Global with Accel, Visionaries Club and 20VC participating, bringing total funding to $84 million and funding European expansion and a planned doubling of headcount by the end of 2022.
Risks & controversies
Taxdoo's business depends on a frequently changing regulatory environment; 2021 brought Brexit-driven changes to UK e-commerce VAT and the EU's One-Stop-Shop reform, described as the biggest VAT reform since 1993, with each reform creating unintended consequences and additional compliance burdens. Larger fintech platforms expanding into sales tax and accounting services, such as Stripe, represent competitive pressure.
Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Timeline · 3
launches, deals, and filingsTaxdoo announced a $64 million (EUR 57 million) Series B led by Tiger Global with existing investors Accel, Visionaries Club and 20VC participating, bringing total funding to $84 million. Funds were designated for expanding the platform to additional customer groups and geographies across Europe and doubling headcount by the end of 2022.
$64M source ↗
Taxdoo raised a $21 million (EUR 17 million) Series A led by Accel with Visionaries Club, 20VC and existing investor HTGF; Accel partner Harry Nelis joined the board. Proceeds were earmarked for growth including international expansion, hiring, R&D, sales and customer support.
$21M source ↗
Taxdoo won the TAXCELLENCE Award 2020 in the category best 'Tax Technology Solution'.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
In the news
▸Research sources · 8
primary sources listed
- Taxdootaxdoo.com · web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Taxdoo do?
- Hamburg-based provider of automated VAT compliance and multichannel e-commerce accounting software for online merchants and tax advisors.
- Who founded Taxdoo?
- Taxdoo was founded by Dr. Roger Gothmann in 2016.
- Who are Taxdoo's investors?
- Taxdoo's investors include Accel, 20VC, Black Forest Labs, HTGF, Tiger Global Management, Visionaries Club.
- How much funding has Taxdoo raised?
- Taxdoo has disclosed $21M raised across 1 of its 4 known rounds.






