Sage Accounting

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-images.s3.amazonaws.com/shared/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/
  - url: graphql/sage-accounting-graphql.md
    type: GraphQL
common:
- type: GitHubOrganization
  url: https://github.com/Sage
- type: LinkedIn
  url: https://www.linkedin.com/company/sage-software
- 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: SignUp
  url: https://developer.sage.com/accounting/guides/getting-started/
- type: Support
  url: https://www.sage.com/en-gb/support/
- type: StatusPage
  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