Entities

Set up entities for your businesses, funds, trusts, or personal finances with multi-book accounting.

Overview

An entity in Axiomatic represents an organization, fund, trust, or individual that maintains its own set of books. Each entity gets its own chart of accounts, books, rule packs, and financial data — completely isolated from other entities.

Entity Types

Type	Description	Examples
Operating	A business with day-to-day operations	SaaS company, consulting firm, retailer
Holding	Holds assets or subsidiaries	Parent company, holding company
Fund	An investment vehicle	Venture fund, hedge fund, PE fund
Trust	A trust entity	Revocable living trust, charitable trust
Personal	An individual's finances	Personal budgeting and tracking

Legal Structures

Each entity type supports specific legal sub-types:

Entity Type	Available Sub-Types
Operating / Holding	C-Corp, S-Corp, LLC (Single), LLC (Multi), LP, LLP, Sole Prop, Non-Profit
Fund	LP, LLC, Business Trust
Trust	Revocable Living, Irrevocable, Charitable, Testamentary, Business Trust
Personal	No sub-type required

The legal structure determines which equity accounts are seeded in your chart of accounts (e.g. C-Corps get Common Stock and APIC, while LLCs get Member's Capital and Member's Draw).

Creating an Entity

Via the Onboarding Wizard

Navigate to Settings > Profile > + New Entity and complete three steps:

Step 1 — Identity

Display name (how the entity appears in the UI)
Legal name (registered name; defaults to display name)
Tax ID (optional)

Step 2 — Type and Structure

Entity type (Operating, Holding, Fund, Trust, Personal)
Legal sub-type (shown based on entity type)
Jurisdiction (state/country of incorporation)
Inception date

Step 3 — Accounting

Functional currency (default: USD)
Fiscal year start month (default: January)
Industry classification (optional)
Timezone

Via API

POST /api/entities
{
  "name": "Acme Corp",
  "legalName": "Acme Corporation",
  "type": "OPERATING",
  "subType": "C_CORP",
  "functionalCurrency": "USD",
  "fiscalYearStartMonth": 1,
  "jurisdiction": "Delaware",
  "industry": "SaaS",
  "timezone": "America/New_York"
}

What Happens on Creation

When you create an entity, Axiomatic automatically:

Creates default books — GAAP for businesses, Fiduciary for trusts, Personal for individuals. Funds also get a Fund Admin book.
Seeds the chart of accounts — a full default chart tailored to the entity's type and legal structure, with the correct equity accounts.
Bootstraps account mappings — maps logical roles to the new accounts so the posting engine works immediately.

Books

Each entity can maintain multiple books to track the same transactions under different accounting frameworks:

Book Type	Use Case
GAAP	Financial reporting under US GAAP
Tax	Tax-basis accounting with different recognition rules
Management	Internal reporting with custom rules
Fund Admin	Fund-specific reporting (NAV, capital accounts)
Fiduciary	Trust accounting
Personal	Personal finance tracking

Each book can have its own rule pack, so the same event can produce different journal entries depending on the accounting basis.

Multi-Entity Setup

You can create multiple entities under a single account for complex organizational structures:

Parent-subsidiary — set a parent entity and ownership percentage for consolidated reporting
Fund structures — separate entities for the GP and each fund vehicle
Personal + Business — track personal finances alongside your business

Entities are fully isolated — each has its own chart of accounts, books, and financial data. Cross-entity relationships are managed through parent/child links and consolidation groups.

Updating an Entity

Use PATCH /api/entities/:id or the Entity Profile editor in Settings to update any entity field after creation, including type, sub-type, jurisdiction, tax ID, industry, and accounting settings.

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