by opskleinbooks 1 (0 reviews)

KleinBooks – Rechnungen & E-Rechnung für Kleinunternehmer & Selbstständige

Name: KleinBooks – Rechnungen & E-Rechnung für Kleinunternehmer & Selbstständige
Author: opskleinbooks

Invoices and quotes for German freelancers and small businesses – Kleinunternehmer ( 19) or with VAT. Pro: e-invoices (ZUGFeRD), DATEV export, GoBD.

KleinBooks ranks #68,235 among WordPress.org plugins with 1+ active installations, is #7,243 of 14,124 in the E-commerce category, a 1/5 rating from 0 reviews, and was last updated Oct 20, 2026. Data from WordPress.org, refreshed twice daily — see methodology.

Compatible with WP 7.1

v1.9.18 Current Version v1.9.18

Updated 2 weeks ago Last Update on 20 Oct, 2026

Refreshed 1 week ago Last Refreshed on

#7,243 of 14,124 in E-commerce Actively maintained

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Rank

#68,235

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Active Installs

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KW Avg Position

10.4

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Downloads

529

+6 today

Support Resolved

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Rating

20%

Review 1 out of 5

1 (0 reviews)

Next Milestone 10

Total Progress 10%

0+ 10+

55,298

Ranks to Climb

Growth Needed

8,000,000

Active Installs

Pro

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Current #68,235

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Active Installs 0,000,000+

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Peak 0,000,000

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Reviews & Ratings

1.0

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Overall 20%

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Plugin Details

Version: 1.9.18
Last Updated: Oct 20, 2026
Requires WP: 6.0+
Tested Up To: 7.1
PHP Version: 8.1 or higher
Author: opskleinbooks

Support & Rating

Rating: ★ ☆ ☆ ☆ ☆ 1
Reviews: 0
Support Threads: 0
Resolved: 0%

Keywords

Rechnung buchhaltung e-rechnung kleinunternehmer zugferd

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Frequently Asked Questions

Common questions about KleinBooks – Rechnungen & E-Rechnung für Kleinunternehmer & Selbstständige

Yes. Quotes, invoices, expenses and the 19 ↔ Regelbesteuerung switch are free and fully functional. GoBD lock with Storno, DATEV export, USt-Voranmeldung, e-invoicing and AfA are part of KleinBooks Pro.

Install KleinBooks, enter your business details under Settings, add a client and click New Invoice. You download the invoice as a PDF or send it by email. No external account or service is needed.

Yes. Save each client once with company name, contact person, address, email, phone and tax number, then pick them when you write a quote or an invoice. Each client has its own page with their quotes, invoices and revenue.

No. KleinBooks runs on its own in the WordPress admin. It is made for service businesses and freelancers who write quotes and invoices, not for shop orders.

Yes. Invoice numbers are assigned automatically in sequence when an invoice is issued — drafts don't use up a number, so deleted drafts leave no gaps — and the PDF carries the German mandatory fields ( 14 UStG).

Yes, in the free version. Write an Angebot, send it as a PDF by email, and when the client accepts, convert it into a draft invoice in one click — the invoice stays editable so you can make any last changes before sending. The quote and the invoice stay cross-linked so you always see where each one came from.

Yes. Under Settings → Template & e-mail you set your logo, pick one of three invoice templates and write the e-mail text your clients get (with placeholders such as the invoice number and due date). Invoices and quotes are sent as PDF by email from your own site; you can check and adjust each e-mail before it goes out.

Yes: expenses with categories, recurring costs and receipt upload.

Yes. The dashboard and the Taxes overview show revenue, expenses, profit and an estimated tax reserve. It is an overview for you, not a tax return.

Yes. It is built for self-employed people in Germany: Freiberufler, Selbstständige and Kleinunternehmer ( 19 UStG), and equally for businesses that charge VAT (Regelbesteuerung).