# Pike for Fortnox: invoices out, supplier costs in

> Pike integrates with Fortnox: customers, articles, invoices, payments, and supplier invoices sync with Pike, and invoices and customers go from Pike to Fortnox. Supplier invoices become Pike expenses, so project costs sit next to time.

Canonical URL: https://usepike.com/integrations/fortnox
Last updated: 2026-10-26

## At a glance

- **Direction:** Fortnox to Pike for articles, payments, and supplier invoices. Both ways for customers and invoices.
- **Who sets it up:** Workspace admins connect. Admins and finance users change sync settings.
- **Source of truth:** Fortnox, once a record is linked.
- **Plan:** All plans
- **Documentation:** [Fortnox docs](https://usepike.com/docs/integrations/fortnox)

## What syncs between Fortnox and Pike

| Fortnox | Pike | Direction |
| --- | --- | --- |
| Customers | Customers | Both ways |
| Articles | Products | Fortnox to Pike |
| Invoices | Invoices | Both ways |
| Payments | Payments on the invoice | Fortnox to Pike |
| Supplier invoices | Expenses | Fortnox to Pike |

Pike does not set Swedish VAT or ROT/RUT fields. Set them in Fortnox when needed.

Each entity has **Read** and, where supported, **Send** toggles. New connections read everything and send invoices only. Customers send **When you send it** or **With its first invoice**. Invoices reach Fortnox only when someone sends them: emailing an invoice from Pike does not send it. After an invoice is sent, make changes in Fortnox.

## How to connect Fortnox

1. Go to **Workspace settings → Integrations → Fortnox**, click **Add integration**, and authorize Fortnox.
2. Set **Read** and **Send** for each entity in the sync settings card.
3. Click **Import data** to bring in customers, articles, invoices, payments, and supplier invoices.

Full setup steps and field mappings are in the [Fortnox integration docs](https://usepike.com/docs/integrations/fortnox).

## How agencies use Pike with Fortnox

- **Count supplier costs on projects.** Supplier invoices import as expenses, ready to assign to projects, so freelancer spend counts against margin.
- **Bill from tracked time.** Invoices built in Pike from billable hours go to Fortnox without re-keying.
- **Keep Swedish bookkeeping in Fortnox.** Your accountant keeps VAT and ROT/RUT in Fortnox while delivery leads watch margin in Pike.

## Limits to know before you connect

- Pike does not set Swedish VAT or ROT/RUT fields.
- Pike cannot create articles in Fortnox.
- After an invoice is sent to Fortnox, make changes in Fortnox.

## Fortnox integration questions

### Does Pike integrate with Fortnox?

Yes. Pike syncs Fortnox customers, articles, invoices, payments, and supplier invoices, and sends invoices and customers from Pike to Fortnox.

### Does Pike set ROT or RUT on Fortnox invoices?

No. The Fortnox integration does not set Swedish VAT or ROT/RUT fields. Set them in Fortnox when needed.

### Do Fortnox supplier invoices show up in Pike?

Yes. The Fortnox integration imports supplier invoices as Pike expenses.

## Related

- [Tripletex](https://usepike.com/integrations/tripletex): Invoices and supplier invoices.
- [Exact Online](https://usepike.com/integrations/exact-online): Invoices with VAT codes from the item.
- [Finance in Pike](https://usepike.com/features/finance): Invoicing, budgets, and margin by project and client.