aid: sage-accounting
name: Sage Accounting
description: >-
  Sage Accounting (formerly Sage Business Cloud Accounting and Sage One) is
  Sage's cloud-based accounting software for UK and international small and
  medium businesses, covering invoicing, expenses, banking, VAT, payroll
  integration, and financial reporting. Its REST API at
  https://api.accounting.sage.com/v3.1 provides programmatic access to
  contacts, sales and purchase invoices, ledger accounts, journals, tax
  rates, bank accounts, and attachments. Authentication uses OAuth 2.0
  with the authorization endpoint at https://www.sageone.com/oauth2/auth/central
  and the token endpoint at https://oauth.accounting.sage.com/token; access
  tokens expire after five minutes and refresh tokens after 31 days, and
  the X-Business header selects the target business.
type: Index
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
tags:
  - Accounting
  - Bookkeeping
  - Invoicing
  - Small Business
  - VAT
  - Sage
  - UK
  - OAuth 2.0
url: >-
  https://raw.githubusercontent.com/api-evangelist/sage-accounting/refs/heads/main/apis.yml
created: '2026-05-11'
modified: '2026-05-11'
specificationVersion: '0.19'
apis:
  - aid: sage-accounting:accounting-api
    name: Sage Accounting v3.1 REST API
    description: >-
      REST API for Sage Business Cloud Accounting providing access to
      contacts, sales invoices, sales credit notes, purchase invoices,
      purchase credit notes, ledger accounts, journals, products, services,
      tax rates, bank accounts, bank transactions, and attachments.
      Multi-business apps target a business via the X-Business header.
    humanURL: https://developer.sage.com/accounting/reference/
    baseURL: https://api.accounting.sage.com/v3.1
    tags:
      - Accounting
      - REST API
      - OAuth 2.0
      - Small Business
    properties:
      - type: Documentation
        url: https://developer.sage.com/accounting/reference/
      - type: Authentication
        url: https://developer.sage.com/accounting/guides/authenticating/authentication
      - type: Guides
        url: https://developer.sage.com/accounting/guides/
      - type: Authorization Endpoint
        url: https://www.sageone.com/oauth2/auth/central?filter=apiv3.1
      - type: Token Endpoint
        url: https://oauth.accounting.sage.com/token
      - type: Changelog
        url: https://developer.sage.com/accounting/reference/changelog/

common:
  - type: Website
    url: https://www.sage.com/en-gb/products/sage-accounting/
  - type: Developer Portal
    url: https://developer.sage.com/accounting/
  - type: Documentation
    url: https://developer.sage.com/accounting/reference/
  - type: Guides
    url: https://developer.sage.com/accounting/guides/
  - type: Pricing
    url: https://www.sage.com/en-gb/products/sage-accounting/pricing/
  - type: Sign Up
    url: https://developer.sage.com/accounting/guides/getting-started/
  - type: Support
    url: https://www.sage.com/en-gb/support/
  - type: Status
    url: https://status.sage.com
  - type: Community
    url: https://www.sagecity.com
features:
  - name: Sales and Purchase Invoicing
    description: >-
      Create and manage sales invoices, sales credit notes, quotes,
      estimates, purchase invoices, and purchase credit notes with line
      items, VAT rates, and attachments.
  - name: Contacts
    description: >-
      Manage customer and supplier records with addresses, default tax
      treatment, payment terms, and credit limits.
  - name: Ledger and Journals
    description: >-
      Read the chart of ledger accounts and post journal entries directly
      for bookkeeping automation and GL integration.
  - name: Banking
    description: >-
      Bank accounts, bank transactions, transfers, and reconciliation flows
      with attachment support.
  - name: VAT and Tax
    description: >-
      Tax rates, VAT schemes (Standard, Cash, Flat Rate), and HMRC Making
      Tax Digital (MTD) VAT submission support.
  - name: Attachments
    description: >-
      Upload and attach files (receipts, invoices) to transactions and
      contacts via the Attachments API.
solutions:
  - name: SMB Accounting Integration
    description: >-
      Sync invoices, contacts, and payments between Sage Accounting and
      CRM, e-commerce, or billing platforms used by UK small businesses.
  - name: Practice and Bookkeeper Tools
    description: >-
      Power tools used by accountants and bookkeepers to manage many client
      Sage Accounting businesses from one interface.
  - name: Making Tax Digital
    description: >-
      Submit VAT returns to HMRC directly from integrated apps using the
      MTD-compliant Sage Accounting API.
useCases:
  - name: E-commerce Order Sync
    description: >-
      Push Shopify, WooCommerce, or Amazon orders into Sage Accounting as
      sales invoices with VAT, customers, and bank receipts.
  - name: Expense Management
    description: >-
      Create purchase invoices and attach receipts from expense tools like
      Dext or AutoEntry for AP automation.
  - name: Multi-Business Reporting
    description: >-
      Aggregate financial data across many Sage Accounting businesses for
      group-level reporting and dashboards.
integrations:
  - name: Stripe
    description: Reconcile Stripe payouts and charges against Sage Accounting invoices
  - name: GoCardless
    description: Direct Debit collection with reconciliation back to Sage
  - name: Shopify
    description: Push Shopify orders into Sage Accounting as sales invoices
  - name: Dext
    description: Receipt and invoice capture pushed into Sage Accounting
  - name: HMRC MTD
    description: Submit Making Tax Digital VAT returns directly to HMRC
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com