Depreciation / Amortisation Excel Calculator

Depreciation & Amortisation Excel Calculator is a structured, easy-to-use model designed to automate straight-line depreciation on an asset-by-asset basis. It generates key outputs including depreciation expense, accumulated depreciation, and net book value, while supporting disposals and month-end reporting. Built using financial modelling best practices, it helps finance professionals save time, reduce errors, and improve visibility over fixed assets.

Depreciation / Amortisation Excel Calculator
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MODEL OVERVIEW

A user-friendly Excel calculator designed to calculate depreciation and amortisation on a straight-line basis. The model automatically computes depreciation charges, cost and accumulated depreciation balances, cash impacts, and gains or losses on disposal for any selected month-end. It is built to streamline depreciation accounting and serves as a robust supporting working file for General Ledger postings.

Developed in line with best-practice financial modelling standards, the tool includes clear instructions, line item explanations, built-in checks, and input validations to ensure accuracy and ease of use.

KEY OUTPUTS

This is a flexible, non-industry-specific tool. 

  • Year-to-date (YTD) depreciation expense at the selected month-end
  • YTD gain or loss on asset disposals
  • Cost and accumulated depreciation balances at the selected month-end
  • Cumulative cash impact
  • Visual chart showing depreciation trends over the financial year
  • Chart comparing Cost vs Net Book Value (NBV) throughout the year
  • Asset class breakdown in table and chart format

KEY INPUTS

Setup Inputs:

  • Business name
  • Reporting currency
  • Financial year
  • Latest month-end
  • Asset categories (up to 10 fully customisable categories)
  • Useful life per asset category

Asset-Level Inputs (up to 150 assets):

  • Asset category classification
  • Asset description
  • Supplier
  • Invoice number
  • Addition date
  • Addition amount
  • Estimated residual value
  • Payment reference number
  • Disposal date (if applicable)
  • Disposal proceeds (if applicable)
  • Disposal receipt reference (if applicable)

KEY FEATURES

  • Built in line with financial modelling best practices
  • Straight-line depreciation methodology
  • Fully customisable business details, reporting currency, financial year, and asset categories
  • Asset categorisation (up to 10 categories), each with independent useful lives
  • Automated monthly calculations for depreciation, balances, cash flows, and disposal impacts
  • Forward-looking projections using data tables to analyse full-year impacts
  • Capacity for up to 150 assets (extendable on request)
  • Comprehensive instructions, line item explanations, and input validations
  • Centralised checks dashboard to quickly identify and resolve errors

Limitations:

  • Single-currency model (no multi-currency functionality)
  • Straight-line depreciation only

SUPPORT / MODIFICATIONS

We are keen to ensure our customers are satisfied and find the models useful for their financial projection needs. Our models are developed with the user in mind and include instructions, line-item explanations, checks and input validations to ensure they are as user-friendly and easy to use as possible without requiring extensive knowledge of Microsoft Excel, finance or accounting. If any questions do arise, we are more than happy to assist. We are also happy to support with any be-spoke modifications you may require to the models to better suit your business needs. To get in touch, please send us a message through the website or contact us on: [email protected]

We are also always keen to receive feedback so please do let us know what you think of our models by sending us a message or submitting a review.


ABOUT PROJECTIFY

We are financial modelling professionals with experience working in big 4 business modelling teams and strong experience supporting businesses with their financial modelling and decision support needs. Our aim is to provide robust and easy-to-use tools that follow good practice financial modelling guidelines and assist individuals and businesses with their financial projection and analysis requirements.

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