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Rechnungskit
Rechnungskit vs. Fizard

Stripe to DATEV and e-invoicing: Fizard vs. Rechnungskit

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Rechnungskit creates the invoice itself: with its own sequential number sequence, as ZUGFeRD under EN 16931, archived tamper-proof and as a finished DATEV booking. Fizard goes the other way: it reads the invoice Stripe has already created, converts it to ZUGFeRD and delivers booking records with linked documents for DATEV. According to Fizard, its e-invoice app is "100% free"; what you pay for is the DATEV export. Both Fizard apps in the Stripe marketplace have read-only access; Fizard itself says that no data can be changed or deleted. So the invoice number comes from Stripe or the Stripe metadata. The conversion is free, but it does not give you your own number sequence.

Sources checked: July 28, 2026 · Updated: October 3, 2026 · No guarantee of accuracy · Sources below the table

The short version

Rechnungskit fits if …

you want the invoice to be created on your side: your own number sequence, your own GoBD archive with locking and checksums, and documents that stay with you even if you switch providers.

Fizard fits if …

the Stripe invoice should remain your document and you mainly need the format and booking data. For deferring subscription revenue to the right periods, Fizard's pRAP report is the more thoroughly documented solution.

The difference is who owns the invoice, not the file format. At Fizard, the Stripe invoice stays the document and is translated into ZUGFeRD; at Rechnungskit, the invoice is created by Rechnungskit, with its own number sequence and its own archive. Both are workable; the question is where the number sequence and retention should live.

Rechnungskit and Fizard in detail

Every row is backed by a source. Where something couldn't be confirmed from public sources, the table says so.

Feature comparison of Rechnungskit and Fizard, as of July 28, 2026
Feature RechnungskitFizard
E-invoicing
ZUGFeRD 2.x / Factur-X outgoing Yes ZUGFeRD 2.5 under EN 16931, every invoice Status: included Yes1 ZUGFeRD with the EN 16931 profile; Fizard explicitly describes this as format conformity Status: included, see footnote 1
XRechnung for public-sector buyers Yes XRechnung 3.0 automatically as soon as the customer has a Leitweg-ID (public-sector routing ID) on file Status: included Not documented1 the public documentation mentions ZUGFeRD; XRechnung is not mentioned Status: no reliable source found, see footnote 1
Validation before sending Mandatory fields under §14 UStG, tax rates, format rules Yes every invoice before sending (Mustang/EN 16931) Status: included Not documented1 no documented scope of checks before sending Status: no reliable source found, see footnote 1
Receive and process e-invoices No deliberately out of scope. Rechnungskit creates outgoing invoices Status: not available No1 reads Stripe outgoing invoices only; incoming invoices are not part of the product, same as Rechnungskit Status: not available, see footnote 1
Shop automation
Native shop and payment integrations no third-party tools Yes Shopify, WooCommerce and Shopware natively, Stripe/Mollie/PayPal/Unzer, own checkout link for one-time purchases and subscriptions without a shop, own push API Status: included Stripe only2 two Stripe Marketplace apps; other shops or payment providers are not part of the product Status: limited, see footnote 2
Invoicing on the correct date of supply shipping date instead of payment date, automatically Yes from the shop's shipping event; for subscriptions, the service period comes from the billing period Status: included Period from Stripe3 uses the subscription periods from Stripe for deferrals; there is no shipping date for goods in the Stripe subscription context Status: limited, see footnote 3
Automatic cancellation invoices on refunds including partial refunds Yes to the cent, with its own correction document Status: included Credit notes3 Stripe credit notes are exported as their own type and also converted to ZUGFeRD; they carry the number of the original invoice Status: limited, see footnote 3
Payout reconciliation with fees Stripe, Mollie, PayPal and others as finished bookings Yes fees and payouts as bookings Status: included Yes2 payouts and fees are their own "activities" and part of the booking batch Status: included, see footnote 2
Tax compliance
OSS / EU distance selling Yes destination-country rates, monitoring of the €10,000 threshold, export Status: included Not documented1 the public documentation does not mention an OSS procedure Status: no reliable source found, see footnote 1
EU tax rates updated automatically Yes monthly from the EU database TEDB, with change alerts Status: included Not documented1 tax rates come from Stripe; separate rate maintenance is not documented Status: no reliable source found, see footnote 1
Qualified VAT ID (USt-IdNr.) check with evidence archive Yes qualified check with the BZSt (Federal Central Tax Office), response archived for 8 years Status: included Not documented1 no documented VAT ID check; the data comes from Stripe Status: no reliable source found, see footnote 1
Single- and multi-purpose vouchers (§3 (13) to (15) UStG) Yes own voucher and store-credit register Status: included Not documented1 vouchers under § 3 (13) to (15) UStG are not mentioned Status: no reliable source found, see footnote 1
Deferred revenue (pRAP) / revenue recognition for subscriptions Yes pRAP for subscriptions and annual licenses Status: included Yes, as a report3 pRAP spreads the net amount to the day on a 30/360 basis across the service periods; output as an Excel file with a remainder column, your tax advisor posts the reclassification in DATEV by hand Status: included, see footnote 3
DATEV & archive
Finished DATEV booking records not just document images Yes EXTF for SKR03/SKR04, revenue + payments + fees; document images via Beleglink in the "Belegtransfer" package for Unternehmen online Status: included Yes2 booking records in DATEV format with automatically exported documents (invoices, cancellations, credit notes) linked to the booking records Status: included, see footnote 2
GoBD archive with locking (Festschreibung) Yes WORM archive, SHA-256, locked from creation Status: included Not documented1 Fizard explicitly claims only format conformity under EN 16931; no archive with locking or retention period is mentioned, the output is a documents.zip Status: no reliable source found, see footnote 1
Free access for your tax advisor Yes own tax advisor portal, documents read-only Status: included Not documented1 no documented separate access for tax advisors; the export is handed to your tax advisor Status: no reliable source found, see footnote 1
Accounting & operations
VAT return (UStVA) / cash-basis accounts (EÜR) / direct ELSTER filing EC Sales List (ZM) import files are covered separately ZM data ZM import file yes; UStVA, EÜR and direct ELSTER filing stay with your tax advisor Status: limited No1 no UStVA, EÜR or ELSTER filing, same as Rechnungskit Status: not available, see footnote 1
Entry price from €9 base fee + tiered price per document; free to test in sandbox mode Status: included from €39/month4 net, quota via a slider: 50 activities €39, 600 activities €99. The e-invoice app is free; you pay for the DATEV export. An activity is "a balance transaction recorded in your Stripe account", so fees and payouts count too, and a quota covers fewer invoices than the number suggests Status: note, see footnote 4
API for your own systems Yes push API in every plan Status: included Not documented1 no public API or developer documentation Status: no reliable source found, see footnote 1

E-invoicing

ZUGFeRD 2.x / Factur-X outgoing
Rechnungskit Yes ZUGFeRD 2.5 under EN 16931, every invoice Status: included
Fizard Yes1 ZUGFeRD with the EN 16931 profile; Fizard explicitly describes this as format conformity Status: included, see footnote 1
XRechnung for public-sector buyers
Rechnungskit Yes XRechnung 3.0 automatically as soon as the customer has a Leitweg-ID (public-sector routing ID) on file Status: included
Fizard Not documented1 the public documentation mentions ZUGFeRD; XRechnung is not mentioned Status: no reliable source found, see footnote 1
Validation before sending
Mandatory fields under §14 UStG, tax rates, format rules
Rechnungskit Yes every invoice before sending (Mustang/EN 16931) Status: included
Fizard Not documented1 no documented scope of checks before sending Status: no reliable source found, see footnote 1
Receive and process e-invoices
Rechnungskit No deliberately out of scope. Rechnungskit creates outgoing invoices Status: not available
Fizard No1 reads Stripe outgoing invoices only; incoming invoices are not part of the product, same as Rechnungskit Status: not available, see footnote 1

Shop automation

Native shop and payment integrations
no third-party tools
Rechnungskit Yes Shopify, WooCommerce and Shopware natively, Stripe/Mollie/PayPal/Unzer, own checkout link for one-time purchases and subscriptions without a shop, own push API Status: included
Fizard Stripe only2 two Stripe Marketplace apps; other shops or payment providers are not part of the product Status: limited, see footnote 2
Invoicing on the correct date of supply
shipping date instead of payment date, automatically
Rechnungskit Yes from the shop's shipping event; for subscriptions, the service period comes from the billing period Status: included
Fizard Period from Stripe3 uses the subscription periods from Stripe for deferrals; there is no shipping date for goods in the Stripe subscription context Status: limited, see footnote 3
Automatic cancellation invoices on refunds
including partial refunds
Rechnungskit Yes to the cent, with its own correction document Status: included
Fizard Credit notes3 Stripe credit notes are exported as their own type and also converted to ZUGFeRD; they carry the number of the original invoice Status: limited, see footnote 3
Payout reconciliation with fees
Stripe, Mollie, PayPal and others as finished bookings
Rechnungskit Yes fees and payouts as bookings Status: included
Fizard Yes2 payouts and fees are their own "activities" and part of the booking batch Status: included, see footnote 2

Tax compliance

OSS / EU distance selling
Rechnungskit Yes destination-country rates, monitoring of the €10,000 threshold, export Status: included
Fizard Not documented1 the public documentation does not mention an OSS procedure Status: no reliable source found, see footnote 1
EU tax rates updated automatically
Rechnungskit Yes monthly from the EU database TEDB, with change alerts Status: included
Fizard Not documented1 tax rates come from Stripe; separate rate maintenance is not documented Status: no reliable source found, see footnote 1
Qualified VAT ID (USt-IdNr.) check with evidence archive
Rechnungskit Yes qualified check with the BZSt (Federal Central Tax Office), response archived for 8 years Status: included
Fizard Not documented1 no documented VAT ID check; the data comes from Stripe Status: no reliable source found, see footnote 1
Single- and multi-purpose vouchers (§3 (13) to (15) UStG)
Rechnungskit Yes own voucher and store-credit register Status: included
Fizard Not documented1 vouchers under § 3 (13) to (15) UStG are not mentioned Status: no reliable source found, see footnote 1
Deferred revenue (pRAP) / revenue recognition for subscriptions
Rechnungskit Yes pRAP for subscriptions and annual licenses Status: included
Fizard Yes, as a report3 pRAP spreads the net amount to the day on a 30/360 basis across the service periods; output as an Excel file with a remainder column, your tax advisor posts the reclassification in DATEV by hand Status: included, see footnote 3

DATEV & archive

Finished DATEV booking records
not just document images
Rechnungskit Yes EXTF for SKR03/SKR04, revenue + payments + fees; document images via Beleglink in the "Belegtransfer" package for Unternehmen online Status: included
Fizard Yes2 booking records in DATEV format with automatically exported documents (invoices, cancellations, credit notes) linked to the booking records Status: included, see footnote 2
GoBD archive with locking (Festschreibung)
Rechnungskit Yes WORM archive, SHA-256, locked from creation Status: included
Fizard Not documented1 Fizard explicitly claims only format conformity under EN 16931; no archive with locking or retention period is mentioned, the output is a documents.zip Status: no reliable source found, see footnote 1
Free access for your tax advisor
Rechnungskit Yes own tax advisor portal, documents read-only Status: included
Fizard Not documented1 no documented separate access for tax advisors; the export is handed to your tax advisor Status: no reliable source found, see footnote 1

Accounting & operations

VAT return (UStVA) / cash-basis accounts (EÜR) / direct ELSTER filing
EC Sales List (ZM) import files are covered separately
Rechnungskit ZM data ZM import file yes; UStVA, EÜR and direct ELSTER filing stay with your tax advisor Status: limited
Fizard No1 no UStVA, EÜR or ELSTER filing, same as Rechnungskit Status: not available, see footnote 1
Entry price
Rechnungskit from €9 base fee + tiered price per document; free to test in sandbox mode Status: included
Fizard from €39/month4 net, quota via a slider: 50 activities €39, 600 activities €99. The e-invoice app is free; you pay for the DATEV export. An activity is "a balance transaction recorded in your Stripe account", so fees and payouts count too, and a quota covers fewer invoices than the number suggests Status: note, see footnote 4
API for your own systems
Rechnungskit Yes push API in every plan Status: included
Fizard Not documented1 no public API or developer documentation Status: no reliable source found, see footnote 1
Sources & footnotes
  1. 1. Fizard product and help pages, checked on August 5, 2026 (fizard.com, hilfe.fizard.com). The public documentation is thin: five help articles and two blog posts. Where nothing is documented, the table says "Not documented" rather than "No".
  2. 2. Stripe App Marketplace, listings "E-Invoice / E-Rechnung" and "Fizard": both apps have read-only access only, including to invoices and credit notes. Fizard itself: "Fizard erhält ausschließlich Lesezugriff – es können keinerlei Daten geändert oder gelöscht werden." (Fizard only gets read access; no data at all can be changed or deleted.)
  3. 3. Fizard help on deferred revenue (pRAP), including the column "Rechnungsnummer aus Stripe oder den Stripe-Metadaten" (invoice number from Stripe or the Stripe metadata).
  4. 4. fizard.com/preise, checked on August 5, 2026; net plus VAT. The quota is chosen with a slider (50 activities €39, 600 activities €99 per month). You pay for the DATEV export; the e-invoice app is free. The Rechnungskit price comes from the pricing curve on rechnungskit.de/preise (€9.00 base fee + €66.50 usage for 600 documents).
  5. Information from the provider's website (pricing, feature and help pages), last checked on July 28, 2026; prices net of VAT.
  6. Rows marked "Not documented" mean we found no reliable public source, not that the feature is missing.
  7. Rechnungskit information reflects the current product; items marked "Planned" are not available yet.
  8. Legal basis for the rows and sections (German law): mandatory invoice details § 14 (4) UStG, e-invoicing § 14 (1) and (2) UStG with the transition rules in § 27 (38) UStG, small-amount invoices § 33 UStDV, vouchers § 3 (13) to (15) UStG, OSS threshold § 3c (4) UStG and filing § 18j UStG, VAT ID confirmation § 18e UStG, intra-EU supply § 6a UStG, tax arising in the filing period of the supply § 13 (1) no. 1 (a) UStG, retention § 14b (1) UStG and § 147 (3) AO, deferred revenue § 250 (2) HGB, archive GoBD, BMF letter of 28.11.2019.

All information from publicly available sources, checked July 28, 2026. Providers' features and prices can change. Please report mistakes to support@rechnungskit.de. How we rate is explained in How we compare.

When is Fizard the better choice?

Rechnungskit doesn't do everything. In these cases, Fizard is the more honest recommendation.

The Stripe invoice should stay your document

If you deliberately want Stripe to issue the invoice and only need the format and booking data, that's exactly Fizard's model. You get one document per sale, with Stripe's number.

Your tax advisor wants the deferral as a spreadsheet

Fizard delivers deferred revenue as its own Excel file with a remainder column, which your tax advisor then reclassifies in DATEV by hand. For businesses that prepare balance sheets, Rechnungskit books the deferral directly in the DATEV export, spread by the method chosen in the DATEV settings: monthly (default), 30/360 or to the day. If you deliberately want the deferral as a file to pass on, Fizard is the better fit.

You only need the e-invoice, not the DATEV export

Fizard's e-invoice app is free; you pay for the activity quota for the DATEV export. If all you need from Stripe is ZUGFeRD files and you handle accounting another way, Fizard costs you nothing.

What Rechnungskit does differently

Invoicing

Invoicing on the correct date of supply

Shipped goods are invoiced on the shipping date, not the payment date. It sounds like a detail, but it decides which period the revenue lands in.

Date of supply (Leistungsdatum) from the shop's shipping event
Small-amount invoices automatically under §33 UStDV
Handover to DATEV in the right period
Tax compliance

VAT ID check with evidence archive

Qualified check with the BZSt (Federal Central Tax Office) including company name, city, postcode and street. The response is archived unchanged for eight years and linked to the individual invoice.

Qualified BZSt check instead of a simple format check
Response linked to the invoice and delivery date
No tax-exempt invoice without a usable check
Accounting

DATEV bookings with linked documents

Your tax advisor gets finished EXTF booking records, not just a folder of PDFs. Revenue, payments, fees and payouts are already matched, and every invoice booking carries a Beleglink to its document image in the "Belegtransfer" package for Unternehmen online.

EXTF bookings for SKR03 and SKR04
Document image attached to the booking via Beleglink
Fees and payouts already matched
Your tax advisor downloads them directly

Price comparison

List prices net per month, as of July 28, 2026. Discounts and promotions are not included.

Rechnungskit List price
from €9 / month net + tiered price per document
Free to test in sandbox mode; billing starts at go-live
After that, a €9 base fee plus €0.15 to €0.03 per document
OSS, ZM, DATEV, GoBD archive and every feature always included
Self-service signup with no waiting list, up and running in minutes
Cancel monthly, no setup fee
Fizard By activity
€39 to €99 / month net, depending on the activity quota
The price is set with a slider by number of activities: 50 activities €39, 600 activities €99 a month
An "activity" is a balance transaction in Stripe; fees and payouts count too
The e-invoice app itself is free; you pay for the DATEV export
No minimum term, free trial export, personal onboarding
Source: fizard.com/preise, as of August 5, 2026, net plus VAT.
Worked example
600 documents a month: at Rechnungskit that is a €9.00 base fee plus €66.50 usage, including e-invoicing, GoBD archive and DATEV bookings. At Fizard, the quota for 600 activities costs €99.00 for the DATEV export; the e-invoice app itself is free. Note: activities are balance transactions, not documents. Fees and payouts count too, so 600 activities cover fewer than 600 invoices.
Rechnungskit
€75.50
Fizard
€99.00

Switching in three steps

1
Bring your data over

Orders and payments from your connected sources are pulled in, and your invoice number sequence continues. Old documents stay available in your previous system; Rechnungskit doesn't import invoices created elsewhere.

2
Test in parallel

Both systems run side by side for one billing period. You compare documents and bookings before anything goes live.

3
Switch over

Sending is switched over and your tax advisor gets the new export access. The old system stays in place as an archive.

FAQ

Yes. Both cover the same route: turning Stripe into a ZUGFeRD invoice and finished DATEV bookings. The difference is who issues the invoice. Fizard converts the document Stripe created and keeps its number. Rechnungskit issues the invoice itself, with its own sequential number sequence and its own GoBD archive, and also covers OSS, the qualified VAT ID check and vouchers under § 3 UStG. Stripe itself is not replaced: billing and payment processing stay there.

Yes, and that's the usual way to switch. You run both systems in parallel for one billing period and compare documents and bookings before you switch over.

They stay where they are. Rechnungskit doesn't import or archive invoices created elsewhere; you keep meeting your retention duty for old documents (eight years under § 14b (1) UStG and § 147 (3) AO) in your previous system. What Rechnungskit can pull in are past orders and payments from your connected shops and payment providers, which then become new, validated invoices. For the number sequence, you set the number Rechnungskit continues from, so nothing overlaps with your old documents.

Documents are stored tamper-proof and unchangeable for eight years for as long as your account exists (WORM archive with checksums). Eight years is the retention period for invoices and accounting records (§ 14b (1) UStG, § 147 (3) AO); the requirements for the archive are set out in the GoBD. You can export them at any time, and for 90 days free of charge after you cancel. The final assessment of your process documentation (Verfahrensdokumentation) is up to your tax advisor.

No. Fizard takes the invoice number from Stripe and converts the same document to ZUGFeRD. It stays at one document per sale. The difference from Rechnungskit lies elsewhere: at Fizard, Stripe keeps ownership of the invoice, meaning the number sequence and retention. Rechnungskit creates the invoice itself and archives it independently of Stripe.

Stripe keeps creating it, because it can't be switched off. That's why Rechnungskit shows an explicit step when you connect: sending Stripe's invoice emails is turned off in the Stripe settings, so your customers get exactly one document, the one from Rechnungskit. Payment collection and webhooks are not affected.

Both. Fizard spreads the net amount on a 30/360 basis across the service periods and outputs the result as an Excel file with a remainder column; your tax advisor then posts the reclassification in DATEV by hand. Rechnungskit books deferred revenue directly in the DATEV export: the deferral in the invoice month and the release in each following month, net, spread by the method you choose: monthly (default), 30/360 or to the day. This requires that you prepare balance sheets and have set up the pRAP account with your tax advisor. The service period comes straight from the Stripe subscription into the invoice (ZUGFeRD BG-14).

From the providers' publicly available sources, checked on July 28, 2026, with footnotes for each row. Where we found no reliable source, the table says "Not documented". If you spot a mistake, write to support@rechnungskit.de and we'll correct it and re-date the page.

Related reading

More comparisons

Rechnungskit is not a tax advisory or law firm. This article explains general principles and does not replace advice from a tax advisor (Steuerberater, § 5 StBerG) or a lawyer (§ 3 RDG). Rechnungskit is built for businesses based in Germany and prepares documents, tax rates and bookings automatically. How your specific case is treated remains your decision, ideally together with your tax advisor or a lawyer.

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