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Fixed assets No of years

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Posted on by Sneha Mani

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Dear members,

I have enabled the option where the depreciation is calculated for 360 days in business central. Please find the attached screenshot 1. But when the option is enabled the No of years field in fixed asset is not calculated. Please find the attached screenshot 2. How to get No of years field calculated when depreciation is caluated for 360 days? please help me with this.

SCREENSHOT 1

SCREENSHOT 2

Thanks in advance,
Sneha

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Dynamics 365 Business Central

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Sohail Ahmed 11,173 Super User 2026 Season 1 on at

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Hi Sneha,

When using the 360-day depreciation method in Business Central, the "No. of Years" field is not automatically calculated. This field typically depends on the Depreciation Starting Date, Ending Book Value, and Depreciation Method.

To get it calculated:

1. Make sure all key fields are filled: Acquisition Cost, Depreciation Starting Date, and Ending Book Value.

2. If you're using straight-line depreciation, the system can estimate the useful life, but with 360-day logic, it may require manual input for "No. of Years".

3. Alternatively, calculate the useful life manually (e.g., via annual depreciation amount) and enter it directly.

If automation is required, consider a minor customization or reach out to your Microsoft partner.

Helpful Resources: https://learn.microsoft.com/en-us/dynamics365/business-central/fa-depreciation-methods

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Ramesh Kumar 7,549 Super User 2026 Season 1 on at

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Hi Sneha,

Please see the below documentation link. This might help you review the setup

https://www.youtube.com/watch?v=MHxoLCCzqJ0&ab_channel=GurdeepBahra

https://learn.microsoft.com/en-us/dynamics365/business-central/fa-depreciation-methods?utm

Thanks

Ramesh

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Andrés Arias 5,168 Super User 2026 Season 1 on at

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Hello,

The "No. of years" field is not calculated automatically as far as I understand. It depends on other variables within the asset.

I hope the following links, can help you to configure it:

https://learn.microsoft.com/en-us/dynamics365/business-central/fa-depreciation-methods

https://learn.microsoft.com/en-us/dynamics365/business-central/fa-how-setup-depreciation

https://learn.microsoft.com/en-us/dynamics365/business-central/fa-manage

I hope I can help.

Regards,

Andres

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Jainam M. Kothari 15,959 Super User 2026 Season 1 on at

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Hello,

When the 360-day depreciation method is enabled, the system may not automatically calculate the "No. of Years" field on the fixed asset card because it uses a simplified calendar model that doesn't align with actual date-based calculations.

This field typically relies on standard calendar logic, and the 360-day method may require manual input for "No. of Years" or adjustments in the depreciation book setup to reflect the asset’s useful life accurately.

To resolve this, ensure all relevant dates and methods are correctly configured, or consider temporarily switching to the standard calendar method to calculate the field before reverting to 360-day depreciation.

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Jeffrey Bulanadi 9,116 Super User 2026 Season 1 on at

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Hi Sneha,

This is a great observation — and yes, it’s a known nuance in BC’s fixed asset logic. When you enable Fiscal Year 365 Days = TRUE, BC switches to a 360-day commercial year model (12 months × 30 days). However, this setting disables auto-calculation of the No. of Depreciation Years field.

Here’s why and how to work around it:

Why It Happens

The 360-day logic assumes manual control over depreciation timing.

BC expects you to define either:

A Depreciation Ending Date, or

A Fixed Yearly Amount or Percentage

Without these, the system doesn’t infer the number of years — hence the 0.00 value in your screenshot.

Workaround Options

Manually enter the No. of Depreciation Years

This is the simplest fix. Once entered, BC will calculate depreciation accordingly using the 360-day logic.

Use Depreciation Ending Date instead

If you prefer not to enter years, set a clear ending date. BC will calculate the duration based on the start and end dates.

Enable “Allow Changes in Depr. Fields”

On the Depreciation Book Card, toggle this to TRUE. It allows you to update depreciation fields even after posting entries.

Optional Enhancements

Use the FA Statistics page to validate projected depreciation and confirm the system is calculating correctly.

Consider running the Calculate Depreciation batch job with a test asset to preview ledger behavior.

Helpful References:
Depreciation Methods – Microsoft Learn
FA Depreciation Setup – CloudFronts Guide
Community Thread – 365 vs 360 Day Depreciation

If this clears things up, feel free to mark it as the suggested answer.

Cheers
Jeffrey

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