ACC.NET

An accounting system built with C#/.NET.

Purpose

The project exists to:

• Discover the accounting domain through institutional theory.
• Build an accounting system from that understanding.
• Develop the system into a commercially viable product.

Status

The MVP is under active development.

Context Map

The map shows the current bounded contexts and their principal relationships.

flowchart TB
    Identity["Identity"]
    Authority["Authority"]
    AccountingSubject["Accounting Subject"]
    ChartOfAccounts["Chart of Accounts"]
    Ledger["Ledger"]
    Evidence["Evidence"]
    Receivables["Receivables"]
    Payables["Payables"]
    Reporting["Reporting"]
    VAT["VAT"]
    Audit["Audit"]

    Identity -->|identifies users for| Authority
    Identity -->|identifies establishing users for| AccountingSubject
    AccountingSubject -->|is recognized by| Authority
    AccountingSubject -->|defines accounting scope for| Ledger
    AccountingSubject -->|adopts| ChartOfAccounts
    Authority -->|authorizes acts in| ChartOfAccounts
    Authority -->|authorizes acts in| Ledger
    ChartOfAccounts -->|defines posting accounts for| Ledger

    Evidence -.-> Ledger
    Receivables -.-> Ledger
    Payables -.-> Ledger
    Ledger -.-> Reporting
    Ledger -.-> VAT
    Ledger -.-> Audit

    classDef placeholder stroke-dasharray: 5 5,color:#666,stroke:#999,fill:#fff
    class Evidence,Receivables,Payables,Reporting,VAT,Audit placeholder

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Context Catalogs

• Identity
• Authority
• Accounting Subject
• Chart of Accounts
• Ledger

Architecture & Design

• Domain-Driven Design
• Hexagonal Architecture
• CQRS
• Event Sourcing
• Modular Monolith

Roadmap

• User registration, email verification, and authentication
• Accounting-subject establishment and onboarding
• Ownership, role assignment, and authority
• Chart-of-accounts adoption and management
• Fiscal-period management
• Journal-entry posting and viewing
• Evidence
• Receivables
• Payables
• Reporting
• VAT
• Auditing

Repository Structure

src/
├─ ACC.AccountingSubject
├─ ACC.Application
├─ ACC.Authority
├─ ACC.BuildingBlocks
├─ ACC.ChartOfAccounts
├─ ACC.Evidence
├─ ACC.Host
├─ ACC.Identity
├─ ACC.Ledger
├─ ACC.Reporting
└─ ACC.VAT

tests/
├─ ACC.AccountingSubject.Tests
├─ ACC.Application.Tests
├─ ACC.Authority.Tests
├─ ACC.ChartOfAccounts.Tests
├─ ACC.Evidence.Tests
├─ ACC.Host.Tests
├─ ACC.Identity.Tests
├─ ACC.Ledger.Tests
├─ ACC.Reporting.Tests
├─ ACC.Testing
└─ ACC.VAT.Tests

tools/
├─ ACC.Bas.Tooling
└─ ACC.Bas.Tooling.Tests

Requirements

• .NET SDK 10

Build

dotnet build acc-dotnet.slnx

Test

dotnet test acc-dotnet.slnx

Run

dotnet run --project src/ACC.Host/ACC.Host.csproj

Explore the API documentation at http://localhost:5055/swagger.

Acknowledgements

Thank you to Eric Evans and Vaughn Vernon for their foundational work on Domain-Driven Design. Their ideas strongly influence how ACC.NET approaches domain discovery, modeling, and software design.

License

See LICENSE for details.