SkillsLib.ai

Fixed Asset Depreciation Calculator & Journal Entry Generator

Automate depreciation calculations and generate audit-ready journal entries for fixed assets

4.5(11 reviews)
10+ downloads
Updated Oct 2026
Verified SafeSecurity VerifiedThis skill was analyzed by our AI security scanner for harmful content including data exfiltration, system manipulation, credential theft, and prompt injection. No threats were detected.

What You Can Do

You can input fixed asset details and receive automated depreciation calculations using straight-line, declining-balance, or units-of-production methods with proper mid-month and mid-year conventions. Claude generates audit-ready journal entries formatted for immediate GL posting, handles salvage value adjustments, and maintains accumulated depreciation reconciliation—ensuring GAAP/IFRS compliance while eliminating manual calculation errors.

Features

Multi-method depreciation calculations

straight-line, declining-balance, units-of-production with mid-month/mid-year conventions

Audit-ready journal entry generation

formatted GL entries ready for immediate posting with full documentation trails

Asset category batch processing

group assets and calculate depreciation across multiple categories simultaneously

Salvage value and impairment handling

adjust for residual values and asset write-downs automatically

Accumulated depreciation reconciliation

verify subledger balances against GL control accounts

Useful life determination support

evaluate and adjust asset lives based on FASB guidance

Partial-year depreciation

calculate acquisition-year depreciation for mid-period asset purchases

Audit documentation templates

maintain schedules and support schedules for external auditor review

Example Output

Example 1: Monthly Depreciation Entry

Input: Office equipment purchased 3/15/2024 for $50,000, 5-year useful life, $5,000 salvage value

Output:

code
Depreciation Expense (5/31/2024): $625

Journal Entry:
Dr. Depreciation Expense — Office Equipment    $625
    Cr. Accumulated Depreciation — Office Equipment    $625

Calculation: ($50,000 - $5,000) / 60 months × 7.5 months (mid-month convention)

Example 2: Batch Asset Processing

Input: 12 vehicles purchased throughout 2024, various acquisition dates, 5-year useful life, 10% salvage

Output: Depreciation schedule with per-asset calculations, consolidated monthly entry, subledger reconciliation to $48,750 YTD accumulated depreciation, audit-ready asset detail schedule with in-service dates and acquisition costs.

What's Included

  • SKILL.md instruction file with depreciation methodology guidance:
  • Fixed asset input template (asset description, acquisition date, cost, useful life, salvage value, depreciation method):
  • Multi-method depreciation calculator with convention options:
  • Journal entry generation template with GL account mapping:
  • Useful life reference matrix aligned with FASB guidance:
  • Accumulated depreciation reconciliation worksheet:
  • Audit documentation checklist for external review:

Who It's For

  • Staff Accountants — managing monthly/quarterly depreciation accruals and GL reconciliation
  • Fixed Asset Managers — tracking asset useful lives and maintaining depreciation schedules
  • Accounting Operations Teams — processing batch depreciation calculations across multiple asset categories
  • Internal Audit Teams — verifying depreciation compliance and audit trail documentation
  • Finance Controllers — ensuring GAAP compliance and preparing financial statement disclosures

Best For

  • Monthly and quarterly depreciation accrual preparation
  • New asset onboarding and capitalization worksheet generation
  • Partial-year depreciation calculations for mid-period acquisitions
  • Annual useful life reviews and asset remaining life assessments
  • Subledger-to-GL reconciliation and variance analysis
  • Audit support schedule preparation and documentation maintenance

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