Fixed Asset Depreciation Calculator & Journal Entry Generator
Automate depreciation calculations and generate audit-ready journal entries for fixed assets
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
straight-line, declining-balance, units-of-production with mid-month/mid-year conventions
formatted GL entries ready for immediate posting with full documentation trails
group assets and calculate depreciation across multiple categories simultaneously
adjust for residual values and asset write-downs automatically
verify subledger balances against GL control accounts
evaluate and adjust asset lives based on FASB guidance
calculate acquisition-year depreciation for mid-period asset purchases
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:
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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