---
title: "Fortnox integration"
description: "Fortnox is the leading Swedish SMB cloud accounting and ERP platform — invoicing, supplier-invoice management, bookkeeping, payments, and reporting for small and mid-sized Swedish businesses."
url: "https://www.apideck.com/integrations/fortnox"
section: "Integrations"
status: "beta"
updated: "2026-09-19T10:44:58.218Z"
tags: ["Accounting"]
---

# Fortnox integration

Fortnox is the leading Swedish SMB cloud accounting and ERP platform — invoicing, supplier-invoice management, bookkeeping, payments, and reporting for small and mid-sized Swedish businesses.

- Status: beta
- Unified APIs: [Accounting](https://www.apideck.com/accounting-api)
- Webhooks: virtual
- HTML page: https://www.apideck.com/integrations/fortnox

## Supported resources

| Resource | Status | Details |
|---|---|---|
| Invoices | live | [invoices](https://www.apideck.com/integrations/fortnox/invoices) |
| Customers | live | [customers](https://www.apideck.com/integrations/fortnox/customers) |
| Suppliers | live | [suppliers](https://www.apideck.com/integrations/fortnox/suppliers) |
| Supplier Invoices | live | [supplier-invoices](https://www.apideck.com/integrations/fortnox/supplier-invoices) |
| Accounts | live | [accounts](https://www.apideck.com/integrations/fortnox/accounts) |
| Voucher Series | beta | [voucher-series](https://www.apideck.com/integrations/fortnox/voucher-series) |
| Vouchers | live | [vouchers](https://www.apideck.com/integrations/fortnox/vouchers) |
| Invoice Payments | live | [invoice-payments](https://www.apideck.com/integrations/fortnox/invoice-payments) |
| Articles | live | [articles](https://www.apideck.com/integrations/fortnox/articles) |
| Company Information | live | [company-information](https://www.apideck.com/integrations/fortnox/company-information) |
| Invoices Credit | live | [invoices-credit](https://www.apideck.com/integrations/fortnox/invoices-credit) |
| Supplier Invoice Payments | live | [supplier-invoice-payments](https://www.apideck.com/integrations/fortnox/supplier-invoice-payments) |
| Accounts Bank | beta | [accounts-bank](https://www.apideck.com/integrations/fortnox/accounts-bank) |
| Tax Rates | live | [tax-rates](https://www.apideck.com/integrations/fortnox/tax-rates) |
| Purchase Orders | live | [purchase-orders](https://www.apideck.com/integrations/fortnox/purchase-orders) |
| Attachments | live | [attachments](https://www.apideck.com/integrations/fortnox/attachments) |
| Projects | live | [projects](https://www.apideck.com/integrations/fortnox/projects) |

## SDKs

- [Node](https://www.apideck.com/integrations/fortnox/sdk/node)
- [TypeScript](https://www.apideck.com/integrations/fortnox/sdk/typescript)
- [Python](https://www.apideck.com/integrations/fortnox/sdk/python)
- [.NET](https://www.apideck.com/integrations/fortnox/sdk/dot-net)
- [PHP](https://www.apideck.com/integrations/fortnox/sdk/php)
- [Java](https://www.apideck.com/integrations/fortnox/sdk/java)
- [Go](https://www.apideck.com/integrations/fortnox/sdk/go)

## FAQs

### How do I integrate Fortnox API with my application?

Apideck provides a unified Accounting API that makes Fortnox integration simple. Sign up for free, enable Fortnox in your dashboard, and use our Vault component to let your users connect their Fortnox accounts. We handle OAuth authentication, token refresh, and data normalization automatically.

### What Fortnox data can I access through Apideck?

Our Fortnox integration supports 17+ data models including invoices, customers, suppliers, and supplier invoices. You can perform read and write operations through our unified API, working with the same code structure across all accounting platforms.

### How does Fortnox authentication work with Apideck?

Apideck's Vault handles Fortnox authentication completely. Your users connect their Fortnox accounts through our secure, white-label UI. We manage OAuth tokens, automatic refresh, and credential storage, so you never have to implement Fortnox's auth flow yourself.

### Does Apideck support Fortnox webhooks?

Yes, Apideck provides real-time notifications when Fortnox data changes. Our unified webhook system normalizes events across all integrations, so you handle Fortnox events with the same code you use for other accounting platforms.

### Why use Apideck instead of Fortnox's direct API?

Using Apideck's unified API instead of Fortnox's direct API saves significant development time. You get normalized data models, automatic auth handling, and the same integration code works with 200+ other apps. When Fortnox updates their API, we handle the changes so your integration keeps working.

### How quickly can I build a Fortnox integration?

Most developers ship a working Fortnox integration within a day using Apideck. Sign up for a free trial (no credit card required), enable Fortnox, and make your first API call within minutes. Our SDKs for Node.js, Python, and other languages make implementation straightforward.

## Related articles

- [How to Integrate with the Fortnox API](https://www.apideck.com/blog/how-to-integrate-with-the-fortnox-api)