diff --git a/PLANNING.md b/PLANNING.md
new file mode 100644
index 0000000..2c1c36c
--- /dev/null
+++ b/PLANNING.md
@@ -0,0 +1,132 @@
+# DeclarationTVA - French CA-3 VAT Declaration Module
+
+## Project Overview
+
+This Dolibarr module creates the French VAT declaration CA-3 (Déclaration de TVA CA3) with PCG account mapping functionality. The module allows users to configure PCG (Plan Comptable Général) accounts for each CA-3 box and generates the appropriate VAT declaration.
+
+## Architecture
+
+### Core Components
+- **Module Class**: `modDeclarationTVA.class.php` - Main module descriptor
+- **Setup Interface**: `admin/setup.php` - Configuration page for PCG account mapping
+- **Database Schema**: `sql/dolibarr_allversions.sql` - Database structure
+- **Language Support**: Bilingual (French/English) interface
+- **Main Interface**: `declarationtvaindex.php` - Main module page
+
+### CA-3 Box Structure
+The module handles the following CA-3 boxes:
+
+| Box | Label | Description | PCG Accounts |
+|-----|-------|-------------|---------------|
+| 01 | Livraisons de biens et prestations de services imposables en France | Domestic sales at 20% (or reduced rates) | 7xxxx (Sales) → 44571x (TVA collectée à 20%), 44572x (10%), 44573x (5,5%), 44574x (2,1%) |
+| 02 | Autres opérations imposables | Other taxable domestic operations | Same 4457xx depending on rate |
+| 03 | Acquisitions intracommunautaires | Intra-EU purchases (autoliquidation) | Base: 6xxxx purchases / 2xxxx immobilisations. VAT due: 4452xxx (TVA due intracom) |
+| 05 | Importations | Imports from outside EU | 4452xxx (TVA due sur importations) |
+| 08 | Autres opérations imposables | Specific operations (reverse charge on services, etc.) | 4452xxx |
+
+## Technical Requirements
+
+### Database Structure
+- **Main table**: `llx_declarationtva_config` - Stores PCG account mappings
+- **Declaration table**: `llx_declarationtva_declarations` - Stores generated declarations
+- **Period table**: `llx_declarationtva_periods` - Manages declaration periods
+
+### Key Features
+1. **PCG Account Configuration**: Setup page to map PCG accounts to CA-3 boxes
+2. **Period Management**: Handle quarterly/monthly declaration periods
+3. **Data Extraction**: Query Dolibarr accounting data based on PCG mappings
+4. **Declaration Generation**: Create CA-3 format declarations
+5. **Export Functionality**: Export to various formats (PDF, XML, CSV)
+6. **Bilingual Interface**: French and English language support
+
+### File Structure
+```
+declarationtva/
+├── admin/
+│   ├── setup.php (Enhanced with PCG configuration)
+│   └── about.php
+├── core/
+│   ├── modules/modDeclarationTVA.class.php
+│   └── class/
+│       ├── declarationtva.class.php
+│       ├── declarationtva_config.class.php
+│       └── declarationtva_period.class.php
+├── lib/
+│   └── declarationtva.lib.php
+├── langs/
+│   ├── en_US/declarationtva.lang
+│   └── fr_FR/declarationtva.lang
+├── sql/
+│   └── dolibarr_allversions.sql
+├── templates/
+│   └── declarationtva/
+│       ├── ca3_form.tpl
+│       └── ca3_pdf.tpl
+└── declarationtvaindex.php
+```
+
+## Development Phases
+
+### Phase 1: Foundation (Week 1-2)
+- Database schema design and implementation
+- Core class structure
+- Basic module setup and configuration
+
+### Phase 2: Configuration Interface (Week 3-4)
+- PCG account mapping interface
+- Period management
+- User permissions and access control
+
+### Phase 3: Data Processing (Week 5-6)
+- Accounting data extraction
+- CA-3 calculation logic
+- Data validation and error handling
+
+### Phase 4: User Interface (Week 7-8)
+- Main declaration interface
+- Period selection and management
+- Declaration preview and editing
+
+### Phase 5: Export and Reporting (Week 9-10)
+- PDF generation
+- XML export for tax authorities
+- CSV export for analysis
+
+### Phase 6: Testing and Documentation (Week 11-12)
+- Unit testing
+- Integration testing
+- User documentation
+- French tax compliance validation
+
+## Success Criteria
+
+1. **Functional Requirements**
+   - Complete CA-3 form generation
+   - Accurate PCG account mapping
+   - Proper period management
+   - Export functionality
+
+2. **Technical Requirements**
+   - Dolibarr compatibility (v19+)
+   - Bilingual interface (FR/EN)
+   - Database integrity
+   - Performance optimization
+
+3. **Compliance Requirements**
+   - French tax authority format compliance
+   - Data accuracy and validation
+   - Audit trail maintenance
+
+## Risk Mitigation
+
+1. **Tax Compliance**: Regular validation with French tax requirements
+2. **Data Accuracy**: Comprehensive testing with real accounting data
+3. **Performance**: Optimization for large datasets
+4. **User Experience**: Intuitive interface for non-technical users
+
+## Future Enhancements
+
+1. **Automated Submission**: Direct submission to tax authorities
+2. **Advanced Analytics**: VAT analysis and reporting
+3. **Multi-Entity Support**: Support for multiple companies
+4. **Integration**: Enhanced integration with other Dolibarr modules
diff --git a/TASK.md b/TASK.md
new file mode 100644
index 0000000..62531a4
--- /dev/null
+++ b/TASK.md
@@ -0,0 +1,324 @@
+# DeclarationTVA - Task List
+
+## Project: French CA-3 VAT Declaration Module for Dolibarr
+
+**Created**: 2025-01-27  
+**Status**: In Development  
+**Priority**: High  
+
+---
+
+## Phase 1: Foundation & Database (Week 1-2)
+
+### 1.1 Database Schema Design
+- [ ] **Task 1.1.1**: Design database schema for PCG account mappings
+  - Create `llx_declarationtva_config` table structure
+  - Define fields for CA-3 box mappings (01, 02, 03, 05, 08)
+  - Add support for multiple VAT rates (20%, 10%, 5.5%, 2.1%)
+  - **Estimated**: 4 hours
+  - **Dependencies**: None
+
+- [ ] **Task 1.1.2**: Design declaration storage schema
+  - Create `llx_declarationtva_declarations` table
+  - Add period management fields
+  - Include status tracking (draft, submitted, approved)
+  - **Estimated**: 3 hours
+  - **Dependencies**: Task 1.1.1
+
+- [ ] **Task 1.1.3**: Create period management table
+  - Design `llx_declarationtva_periods` table
+  - Support quarterly and monthly periods
+  - Add period status and validation
+  - **Estimated**: 2 hours
+  - **Dependencies**: None
+
+### 1.2 Core Class Structure
+- [ ] **Task 1.2.1**: Create DeclarationTVA main class
+  - File: `core/class/declarationtva.class.php`
+  - Basic CRUD operations
+  - Period management methods
+  - **Estimated**: 6 hours
+  - **Dependencies**: Task 1.1.1, 1.1.2
+
+- [ ] **Task 1.2.2**: Create DeclarationTVA_Config class
+  - File: `core/class/declarationtva_config.class.php`
+  - PCG account mapping management
+  - Validation methods
+  - **Estimated**: 4 hours
+  - **Dependencies**: Task 1.1.1
+
+- [ ] **Task 1.2.3**: Create DeclarationTVA_Period class
+  - File: `core/class/declarationtva_period.class.php`
+  - Period creation and validation
+  - Date range management
+  - **Estimated**: 3 hours
+  - **Dependencies**: Task 1.1.3
+
+### 1.3 Database Implementation
+- [ ] **Task 1.3.1**: Update SQL schema file
+  - File: `sql/dolibarr_allversions.sql`
+  - Add all table creation statements
+  - Include indexes and constraints
+  - **Estimated**: 2 hours
+  - **Dependencies**: Tasks 1.1.1, 1.1.2, 1.1.3
+
+- [ ] **Task 1.3.2**: Create database migration scripts
+  - Handle version upgrades
+  - Data migration procedures
+  - **Estimated**: 3 hours
+  - **Dependencies**: Task 1.3.1
+
+---
+
+## Phase 2: Configuration Interface (Week 3-4)
+
+### 2.1 Setup Page Enhancement
+- [ ] **Task 2.1.1**: Redesign admin setup page
+  - File: `admin/setup.php`
+  - Replace generic parameters with CA-3 specific configuration
+  - Add PCG account selection interface
+  - **Estimated**: 8 hours
+  - **Dependencies**: Task 1.2.2
+
+- [ ] **Task 2.1.2**: Create PCG account mapping interface
+  - Dynamic form for each CA-3 box
+  - Account code validation
+  - Rate selection (20%, 10%, 5.5%, 2.1%)
+  - **Estimated**: 10 hours
+  - **Dependencies**: Task 2.1.1
+
+- [ ] **Task 2.1.3**: Add period configuration
+  - Quarterly/monthly period selection
+  - Default period settings
+  - **Estimated**: 4 hours
+  - **Dependencies**: Task 1.2.3
+
+### 2.2 User Interface Components
+- [ ] **Task 2.2.1**: Create main declaration interface
+  - File: `declarationtvaindex.php`
+  - Period selection dropdown
+  - Declaration status display
+  - **Estimated**: 6 hours
+  - **Dependencies**: Task 1.2.1
+
+- [ ] **Task 2.2.2**: Add declaration creation wizard
+  - Step-by-step process
+  - Data validation at each step
+  - **Estimated**: 8 hours
+  - **Dependencies**: Task 2.2.1
+
+---
+
+## Phase 3: Data Processing (Week 5-6)
+
+### 3.1 Accounting Data Extraction
+- [ ] **Task 3.1.1**: Create data extraction methods
+  - Query Dolibarr accounting tables
+  - Filter by PCG account codes
+  - Handle different VAT rates
+  - **Estimated**: 12 hours
+  - **Dependencies**: Task 1.2.1
+
+- [ ] **Task 3.1.2**: Implement CA-3 calculation logic
+  - Box 01: Domestic sales
+  - Box 02: Other taxable operations
+  - Box 03: Intra-EU acquisitions
+  - Box 05: Imports
+  - Box 08: Other operations
+  - **Estimated**: 15 hours
+  - **Dependencies**: Task 3.1.1
+
+- [ ] **Task 3.1.3**: Add data validation
+  - Cross-check calculations
+  - Validate against French tax rules
+  - Error reporting
+  - **Estimated**: 8 hours
+  - **Dependencies**: Task 3.1.2
+
+### 3.2 Period Management
+- [ ] **Task 3.2.1**: Implement period calculation
+  - Automatic period detection
+  - Date range validation
+  - **Estimated**: 4 hours
+  - **Dependencies**: Task 1.2.3
+
+- [ ] **Task 3.2.2**: Add period locking mechanism
+  - Prevent modifications to submitted periods
+  - Audit trail
+  - **Estimated**: 3 hours
+  - **Dependencies**: Task 3.2.1
+
+---
+
+## Phase 4: User Interface (Week 7-8)
+
+### 4.1 Main Interface Development
+- [ ] **Task 4.1.1**: Create declaration list view
+  - Show all declarations by period
+  - Status indicators
+  - Action buttons (edit, delete, export)
+  - **Estimated**: 6 hours
+  - **Dependencies**: Task 2.2.1
+
+- [ ] **Task 4.1.2**: Add declaration detail view
+  - CA-3 form display
+  - Editable fields
+  - Calculation summary
+  - **Estimated**: 8 hours
+  - **Dependencies**: Task 3.1.2
+
+- [ ] **Task 4.1.3**: Create period management interface
+  - Period creation
+  - Period status management
+  - **Estimated**: 4 hours
+  - **Dependencies**: Task 3.2.1
+
+### 4.2 Form Handling
+- [ ] **Task 4.2.1**: Implement form validation
+  - Client-side validation
+  - Server-side validation
+  - Error message display
+  - **Estimated**: 6 hours
+  - **Dependencies**: Task 4.1.2
+
+- [ ] **Task 4.2.2**: Add auto-save functionality
+  - Save draft declarations
+  - Restore previous sessions
+  - **Estimated**: 4 hours
+  - **Dependencies**: Task 4.2.1
+
+---
+
+## Phase 5: Export and Reporting (Week 9-10)
+
+### 5.1 PDF Generation
+- [ ] **Task 5.1.1**: Create PDF template
+  - File: `templates/declarationtva/ca3_pdf.tpl`
+  - Official CA-3 form layout
+  - Company information header
+  - **Estimated**: 8 hours
+  - **Dependencies**: Task 4.1.2
+
+- [ ] **Task 5.1.2**: Implement PDF generation
+  - Use Dolibarr PDF engine
+  - Data population
+  - Formatting and styling
+  - **Estimated**: 6 hours
+  - **Dependencies**: Task 5.1.1
+
+### 5.2 Export Formats
+- [ ] **Task 5.2.1**: Create XML export
+  - French tax authority format
+  - Data structure compliance
+  - **Estimated**: 6 hours
+  - **Dependencies**: Task 3.1.2
+
+- [ ] **Task 5.2.2**: Create CSV export
+  - Data analysis format
+  - Customizable fields
+  - **Estimated**: 3 hours
+  - **Dependencies**: Task 3.1.2
+
+### 5.3 Reporting Features
+- [ ] **Task 5.3.1**: Add declaration history
+  - Previous periods view
+  - Comparison functionality
+  - **Estimated**: 4 hours
+  - **Dependencies**: Task 4.1.1
+
+- [ ] **Task 5.3.2**: Create summary reports
+  - Annual VAT summary
+  - Trend analysis
+  - **Estimated**: 5 hours
+  - **Dependencies**: Task 5.3.1
+
+---
+
+## Phase 6: Testing and Documentation (Week 11-12)
+
+### 6.1 Unit Testing
+- [ ] **Task 6.1.1**: Create test suite
+  - File: `test/phpunit/`
+  - Test all core classes
+  - Test calculation logic
+  - **Estimated**: 8 hours
+  - **Dependencies**: All previous tasks
+
+- [ ] **Task 6.1.2**: Integration testing
+  - Test with real Dolibarr data
+  - Performance testing
+  - **Estimated**: 6 hours
+  - **Dependencies**: Task 6.1.1
+
+### 6.2 Documentation
+- [ ] **Task 6.2.1**: Create user manual
+  - Setup instructions
+  - Usage guide
+  - Troubleshooting
+  - **Estimated**: 6 hours
+  - **Dependencies**: All previous tasks
+
+- [ ] **Task 6.2.2**: Create developer documentation
+  - API documentation
+  - Code comments
+  - Architecture overview
+  - **Estimated**: 4 hours
+  - **Dependencies**: All previous tasks
+
+### 6.3 French Compliance
+- [ ] **Task 6.3.1**: Validate tax compliance
+  - Review with French tax expert
+  - Format validation
+  - **Estimated**: 4 hours
+  - **Dependencies**: Task 5.2.1
+
+- [ ] **Task 6.3.2**: Final testing
+  - End-to-end testing
+  - User acceptance testing
+  - **Estimated**: 6 hours
+  - **Dependencies**: Task 6.3.1
+
+---
+
+## Language Support
+
+### 6.4 Bilingual Interface
+- [ ] **Task 6.4.1**: Complete French translations
+  - File: `langs/fr_FR/declarationtva.lang`
+  - All interface elements
+  - Error messages
+  - **Estimated**: 4 hours
+  - **Dependencies**: All UI tasks
+
+- [ ] **Task 6.4.2**: Complete English translations
+  - File: `langs/en_US/declarationtva.lang`
+  - Update existing translations
+  - **Estimated**: 2 hours
+  - **Dependencies**: Task 6.4.1
+
+---
+
+## Discovered During Work
+
+*Tasks discovered during development will be added here*
+
+---
+
+## Notes
+
+- All tasks should include proper error handling
+- Code must follow Dolibarr coding standards
+- All user-facing text must be translatable
+- Database changes must be backward compatible
+- Performance optimization for large datasets
+- Security considerations for financial data
+
+## Total Estimated Time: 200+ hours
+
+## Priority Order:
+1. Database schema and core classes
+2. Configuration interface
+3. Data processing and calculations
+4. User interface
+5. Export functionality
+6. Testing and documentation
diff --git a/langs/en_US/declarationtva.lang b/langs/en_US/declarationtva.lang
index b24a846..6497b53 100644
--- a/langs/en_US/declarationtva.lang
+++ b/langs/en_US/declarationtva.lang
@@ -5,9 +5,9 @@
 #
 
 # Module label 'ModuleDeclarationTVAName'
-ModuleDeclarationTVAName = DeclarationTVA
+ModuleDeclarationTVAName = French CA3 VAT Declaration
 # Module description 'ModuleDeclarationTVADesc'
-ModuleDeclarationTVADesc = DeclarationTVA description
+ModuleDeclarationTVADesc = French CA3 VAT declaration module with PCG account mapping
 
 #
 # Admin page
@@ -35,8 +35,106 @@ DeclarationTVAAboutPage = DeclarationTVA about page
 DeclarationTVAArea = Home DeclarationTVA
 MyPageName = My page name
 
+# PCG Account Configuration
+DECLARATIONTVA_PCG_CONFIG = PCG Account Configuration
+DECLARATIONTVA_PCG_CONFIG_TOOLTIP = Configuration of General Chart of Accounts for each CA3 box
+
+# CA3 Boxes
+DECLARATIONTVA_BOX_01 = Box 01 - Domestic sales of goods and services
+DECLARATIONTVA_BOX_01_TOOLTIP = Domestic sales at 20% (or reduced rates)
+DECLARATIONTVA_BOX_02 = Box 02 - Other taxable operations
+DECLARATIONTVA_BOX_02_TOOLTIP = Other taxable domestic operations
+DECLARATIONTVA_BOX_03 = Box 03 - Intra-EU acquisitions
+DECLARATIONTVA_BOX_03_TOOLTIP = Intra-EU purchases (autoliquidation)
+DECLARATIONTVA_BOX_05 = Box 05 - Imports
+DECLARATIONTVA_BOX_05_TOOLTIP = Imports from outside EU
+DECLARATIONTVA_BOX_08 = Box 08 - Other taxable operations
+DECLARATIONTVA_BOX_08_TOOLTIP = Specific operations (reverse charge on services, etc.)
+
+# VAT Rates
+DECLARATIONTVA_RATE_20 = Rate 20%
+DECLARATIONTVA_RATE_10 = Rate 10%
+DECLARATIONTVA_RATE_5_5 = Rate 5.5%
+DECLARATIONTVA_RATE_2_1 = Rate 2.1%
+
+# PCG Accounts
+DECLARATIONTVA_PCG_SALES = Sales accounts (7xxxx)
+DECLARATIONTVA_PCG_VAT_COLLECTED_20 = VAT collected 20% (44571x)
+DECLARATIONTVA_PCG_VAT_COLLECTED_10 = VAT collected 10% (44572x)
+DECLARATIONTVA_PCG_VAT_COLLECTED_5_5 = VAT collected 5.5% (44573x)
+DECLARATIONTVA_PCG_VAT_COLLECTED_2_1 = VAT collected 2.1% (44574x)
+DECLARATIONTVA_PCG_VAT_DUE_INTRA = VAT due intra-EU (4452xxx)
+DECLARATIONTVA_PCG_VAT_DUE_IMPORT = VAT due on imports (4452xxx)
+
+# Periods
+DECLARATIONTVA_PERIOD_QUARTERLY = Quarterly
+DECLARATIONTVA_PERIOD_MONTHLY = Monthly
+DECLARATIONTVA_PERIOD_YEAR = Year
+DECLARATIONTVA_PERIOD_QUARTER = Quarter
+DECLARATIONTVA_PERIOD_MONTH = Month
+
+# Declaration Status
+DECLARATIONTVA_STATUS_DRAFT = Draft
+DECLARATIONTVA_STATUS_VALIDATED = Validated
+DECLARATIONTVA_STATUS_SUBMITTED = Submitted
+DECLARATIONTVA_STATUS_APPROVED = Approved
+
+# Actions
+DECLARATIONTVA_CREATE_DECLARATION = Create declaration
+DECLARATIONTVA_EDIT_DECLARATION = Edit declaration
+DECLARATIONTVA_DELETE_DECLARATION = Delete declaration
+DECLARATIONTVA_VALIDATE_DECLARATION = Validate declaration
+DECLARARATIONTVA_EXPORT_PDF = Export to PDF
+DECLARATIONTVA_EXPORT_XML = Export to XML
+DECLARATIONTVA_EXPORT_CSV = Export to CSV
+
+# Error Messages
+DECLARATIONTVA_ERROR_NO_CONFIG = No PCG configuration found
+DECLARATIONTVA_ERROR_INVALID_PERIOD = Invalid period
+DECLARATIONTVA_ERROR_CALCULATION_FAILED = Calculation error
+DECLARATIONTVA_ERROR_EXPORT_FAILED = Export error
+
+# Success Messages
+DECLARATIONTVA_SUCCESS_CONFIG_SAVED = Configuration saved
+DECLARATIONTVA_SUCCESS_DECLARATION_CREATED = Declaration created
+DECLARATIONTVA_SUCCESS_DECLARATION_VALIDATED = Declaration validated
+DECLARATIONTVA_SUCCESS_EXPORT_COMPLETED = Export completed
+
 #
-# Sample widget
+# Main Interface
 #
-MyWidget = My widget
-MyWidgetDescription = My widget description
+DeclarationTVAArea = DeclarationTVA Home
+DeclarationTVAMainPage = DeclarationTVA main page
+DeclarationTVAList = Declarations list
+DeclarationTVACreate = Create declaration
+DeclarationTVAEdit = Edit declaration
+DeclarationTVAView = View declaration
+
+# Widget
+DeclarationTVAWidget = DeclarationTVA Widget
+DeclarationTVAWidgetDescription = Shows recent declarations and statistics
+
+# Navigation
+DeclarationTVANavHome = Home
+DeclarationTVANavDeclarations = Declarations
+DeclarationTVANavConfiguration = Configuration
+DeclarationTVANavReports = Reports
+
+# Forms
+DeclarationTVAFormPeriod = Period
+DeclarationTVAFormCompany = Company
+DeclarationTVAFormAmount = Amount
+DeclarationTVAFormVATRate = VAT Rate
+DeclarationTVAFormPCGAccount = PCG Account
+
+# Tables
+DeclarationTVATableBox = Box
+DeclarationTVATableDescription = Description
+DeclarationTVATableAmount = Amount
+DeclarationTVATableVATRate = VAT Rate
+DeclarationTVATableVATAmount = VAT Amount
+DeclarationTVATableActions = Actions
+
+# Help
+DeclarationTVAHelpTitle = Help
+DeclarationTVAHelpText = This module allows you to automatically generate your French CA3 VAT declarations by mapping your PCG accounts with the declaration boxes.
diff --git a/langs/fr_FR/declarationtva.lang b/langs/fr_FR/declarationtva.lang
new file mode 100644
index 0000000..570a4c6
--- /dev/null
+++ b/langs/fr_FR/declarationtva.lang
@@ -0,0 +1,129 @@
+# Fichier de traduction - Français
+
+#
+# Générique
+#
+
+# Libellé du module 'ModuleDeclarationTVAName'
+ModuleDeclarationTVAName = Déclaration TVA CA3
+# Description du module 'ModuleDeclarationTVADesc'
+ModuleDeclarationTVADesc = Module de génération de la déclaration de TVA CA3 française avec mapping des comptes PCG
+
+#
+# Page d'administration
+#
+DeclarationTVASetup = Configuration Déclaration TVA
+Settings = Paramètres
+DeclarationTVASetupPage = Page de configuration du module Déclaration TVA
+NewSection = Nouvelle section
+
+# Configuration des comptes PCG
+DECLARATIONTVA_PCG_CONFIG = Configuration des comptes PCG
+DECLARATIONTVA_PCG_CONFIG_TOOLTIP = Configuration des comptes du Plan Comptable Général pour chaque case de la CA3
+
+# Cases CA3
+DECLARATIONTVA_BOX_01 = Case 01 - Livraisons de biens et prestations de services imposables en France
+DECLARATIONTVA_BOX_01_TOOLTIP = Ventes domestiques au taux de 20% (ou taux réduits)
+DECLARATIONTVA_BOX_02 = Case 02 - Autres opérations imposables
+DECLARATIONTVA_BOX_02_TOOLTIP = Autres opérations imposables domestiques
+DECLARATIONTVA_BOX_03 = Case 03 - Acquisitions intracommunautaires
+DECLARATIONTVA_BOX_03_TOOLTIP = Achats intracommunautaires (autoliquidation)
+DECLARATIONTVA_BOX_05 = Case 05 - Importations
+DECLARATIONTVA_BOX_05_TOOLTIP = Importations en provenance de pays hors UE
+DECLARATIONTVA_BOX_08 = Case 08 - Autres opérations imposables
+DECLARATIONTVA_BOX_08_TOOLTIP = Opérations spécifiques (autoliquidation sur services, etc.)
+
+# Taux de TVA
+DECLARATIONTVA_RATE_20 = Taux 20%
+DECLARATIONTVA_RATE_10 = Taux 10%
+DECLARATIONTVA_RATE_5_5 = Taux 5,5%
+DECLARATIONTVA_RATE_2_1 = Taux 2,1%
+
+# Comptes PCG
+DECLARATIONTVA_PCG_SALES = Comptes de vente (7xxxx)
+DECLARATIONTVA_PCG_VAT_COLLECTED_20 = TVA collectée 20% (44571x)
+DECLARATIONTVA_PCG_VAT_COLLECTED_10 = TVA collectée 10% (44572x)
+DECLARATIONTVA_PCG_VAT_COLLECTED_5_5 = TVA collectée 5,5% (44573x)
+DECLARATIONTVA_PCG_VAT_COLLECTED_2_1 = TVA collectée 2,1% (44574x)
+DECLARATIONTVA_PCG_VAT_DUE_INTRA = TVA due intracommunautaire (4452xxx)
+DECLARATIONTVA_PCG_VAT_DUE_IMPORT = TVA due sur importations (4452xxx)
+
+# Périodes
+DECLARATIONTVA_PERIOD_QUARTERLY = Trimestrielle
+DECLARATIONTVA_PERIOD_MONTHLY = Mensuelle
+DECLARATIONTVA_PERIOD_YEAR = Année
+DECLARATIONTVA_PERIOD_QUARTER = Trimestre
+DECLARATIONTVA_PERIOD_MONTH = Mois
+
+# États des déclarations
+DECLARATIONTVA_STATUS_DRAFT = Brouillon
+DECLARATIONTVA_STATUS_VALIDATED = Validée
+DECLARATIONTVA_STATUS_SUBMITTED = Soumise
+DECLARATIONTVA_STATUS_APPROVED = Approuvée
+
+# Actions
+DECLARATIONTVA_CREATE_DECLARATION = Créer une déclaration
+DECLARATIONTVA_EDIT_DECLARATION = Modifier la déclaration
+DECLARATIONTVA_DELETE_DECLARATION = Supprimer la déclaration
+DECLARATIONTVA_VALIDATE_DECLARATION = Valider la déclaration
+DECLARATIONTVA_EXPORT_PDF = Exporter en PDF
+DECLARATIONTVA_EXPORT_XML = Exporter en XML
+DECLARATIONTVA_EXPORT_CSV = Exporter en CSV
+
+# Messages d'erreur
+DECLARATIONTVA_ERROR_NO_CONFIG = Aucune configuration PCG trouvée
+DECLARATIONTVA_ERROR_INVALID_PERIOD = Période invalide
+DECLARATIONTVA_ERROR_CALCULATION_FAILED = Erreur lors du calcul
+DECLARATIONTVA_ERROR_EXPORT_FAILED = Erreur lors de l'export
+
+# Messages de succès
+DECLARATIONTVA_SUCCESS_CONFIG_SAVED = Configuration sauvegardée
+DECLARATIONTVA_SUCCESS_DECLARATION_CREATED = Déclaration créée
+DECLARATIONTVA_SUCCESS_DECLARATION_VALIDATED = Déclaration validée
+DECLARATIONTVA_SUCCESS_EXPORT_COMPLETED = Export terminé
+
+#
+# Page À propos
+#
+About = À propos
+DeclarationTVAAbout = À propos de Déclaration TVA
+DeclarationTVAAboutPage = Page d'information sur le module Déclaration TVA
+
+#
+# Interface principale
+#
+DeclarationTVAArea = Accueil Déclaration TVA
+DeclarationTVAMainPage = Page principale du module Déclaration TVA
+DeclarationTVAList = Liste des déclarations
+DeclarationTVACreate = Créer une déclaration
+DeclarationTVAEdit = Modifier la déclaration
+DeclarationTVAView = Voir la déclaration
+
+# Widget
+DeclarationTVAWidget = Widget Déclaration TVA
+DeclarationTVAWidgetDescription = Affiche les déclarations récentes et les statistiques
+
+# Navigation
+DeclarationTVANavHome = Accueil
+DeclarationTVANavDeclarations = Déclarations
+DeclarationTVANavConfiguration = Configuration
+DeclarationTVANavReports = Rapports
+
+# Formulaires
+DeclarationTVAFormPeriod = Période
+DeclarationTVAFormCompany = Société
+DeclarationTVAFormAmount = Montant
+DeclarationTVAFormVATRate = Taux de TVA
+DeclarationTVAFormPCGAccount = Compte PCG
+
+# Tableaux
+DeclarationTVATableBox = Case
+DeclarationTVATableDescription = Description
+DeclarationTVATableAmount = Montant
+DeclarationTVATableVATRate = Taux TVA
+DeclarationTVATableVATAmount = Montant TVA
+DeclarationTVATableActions = Actions
+
+# Aide
+DeclarationTVAHelpTitle = Aide
+DeclarationTVAHelpText = Ce module vous permet de générer automatiquement vos déclarations de TVA CA3 en mappant vos comptes PCG avec les cases de la déclaration.