---
title: "Exact amortization date error for Administrators - Payhawk Help Center"
slug: "failed-to-export-into-exact-online-exact-online-requires-amortization-start-end"
description: "Fix the Exact Online export error for amortization dates. Fill in both the Amortization Start and End dates, or clear both, then export the expense again."
updated: 2026-10-27T15:07:48Z
published: 2026-10-27T15:07:48Z
canonical: "payhawk.com/failed-to-export-into-exact-online-exact-online-requires-amortization-start-end"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://payhawk.com/help/llms.txt
> Use this file to discover all available pages before exploring further.

# Failed to export into Exact Online. Exact Online requires both the Amortization start and end fields to be either empty or populated.

## Error message

```plaintext
Failed to export expense. Exact Online requires both the Amortization start and end fields to be either empty or populated.
```

## Affected ERP integrations

- Exact Online

## Cause

This error occurs when an expense in Payhawk uses an amortization schedule, but only one of the two required date fields, **Amortization Start** or **Amortization End**, has been filled in. Exact Online enforces a strict validation rule that requires both the start and end dates to be either both populated or both left empty. A partially filled amortization schedule will be rejected and will cause the export to fail.

## Solution

To resolve this issue:

1. In the [Payhawk Web Portal](https://portal.payhawk.com), go to **Spend** and open the expense that failed to export by clicking on it.
2. Navigate to the **Amortization Schedule** section of the expense.
3. Review the **Amortization Start** and **Amortization End** date fields:
  - If the expense requires amortization, ensure that both the start and end dates are filled in with valid dates that reflect the correct amortization period.
  - If the expense does not require amortisation, clear both the start and end date fields and leave them both empty.

![Amortization schedule, Amortization start and Amortization end fields on an expense in Payhawk.](https://cdn.payhawk.com/Adm%3AIntegrations%3AError%20messages/exact_online_amortization_schedule_20261002_manual.png)
4. Save the updated expense.
5. Attempt to export the expense again.