Qirtas · One invoice, two languages, written once

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  • Concept project
  • 2026
  • B2B SaaS
  • Right to left
  • Design system

Qirtas

One invoice, two languages, written once.

Role
Product Designer, personal project
Platforms
Desktop web 1440 px and mobile app 393 × 852, in English and Arabic
Service shown
Invoicing SaaS, right-to-left interface, bidirectional design system
Tools
Figma, AI-assisted workflow
Qirtas cover: the title One invoice. Two languages. on dark green, the dashboard in Arabic and English, 3D coin and star objects.

01 The project

One invoice, two languages, written once.

In Saudi Arabia, Arabic is mandatory on tax invoices and another language may be added next to it. Wave 25 of e-invoicing brings small businesses into scope on 1 February 2027. A freelancer who works in English rewrites every invoice twice, once per language. One entry produces a bilingual document. Arabic and English share every label of the invoice, Arabic on the right and English on the left, whatever the language of the interface. Every screen is described once and built in both directions. Directional components have a Dir property, LTR or RTL. Digits stay Western and are never mirrored.

Desk research, wireframes in both directions, a design system of 105 variables and 200 components, 16 screens (8 desktop, 8 mobile, in English and Arabic) and a 46-link prototype.

02 Screens

Dashboard in Arabic with the sidebar on the right: monthly revenue, due and overdue amounts, six-month chart, recent invoices.
Invoice detail page in English with the bilingual tax invoice, seller, buyer, lines, VAT at 15 % and QR code.
Three mobile screens: home in English, home in Arabic and an invoice in Arabic.
Design system molecules board: fields, stat cards and invoice rows in LTR and RTL versions.

03 Transparency

  • Concept project, made on my own to show my method.
  • None. Personal project, sample data. Desk research only: tax rules, public statistics, right-to-left guidelines and public tool pages, checked on 4 October 2026. Proto-personas are hypotheses, with no name and no quote. No test run. A five-task protocol is written, not executed. I have not shipped a right-to-left product: the Arabic copy and mirrored layouts still need a review by native readers. System rule: text at 4.5:1 or more on its background, a status is always written, with a dot as a second cue. Twelve 3D objects modelled in code in the product palette. No photos.
  • Designed in Figma with an AI-assisted workflow, directed and reviewed by the designer.
Full case study (French)View on BehanceAll projects

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