We will explain the concept of useful life (depreciation period) for automated pallet warehouses (PL automated warehouses / Pallet AS/RS), which represent a large-scale investment among logistics equipment, along with specific examples of lease fee calculations and return on investment (ROI) simulations.
Because an automated warehouse combines elements such as "building," "racks (shelving)," "cranes (mechanical equipment)," and "control systems (software)," the useful life differs depending on the asset classification for tax purposes.
The general statutory useful life standards under tax law are as follows.
| Asset Classification | Main Targets | Statutory Useful Life (Approx.) | Remarks |
|---|---|---|---|
| Machinery and Equipment | Stacker cranes, transport conveyors, storage/retrieval control units | 10 Years | Applied as "Logistics Machinery/Equipment" or "Warehouse Industry Equipment" |
| Tools, Furniture and Fixtures | Steel racks (shelving), pallets, etc. | 8 - 12 Years | Depends on rack structure and fixation method |
| Software | WMS / WCS (Warehouse Control System) | 5 Years | Intangible fixed asset (software for internal use) |
| Building Attachments | Integrated automated warehouse building, fire prevention/electrical equipment | 15 - 31 Years | In the case of building-integrated automated warehouses (rack-built) |
In accounting practice, it is common to either lump the entire facility together as "Machinery and Equipment (10-year useful life)" or to proportionally divide and depreciate it into the "Rack part (12 years)" and the "Control part (5 to 10 years)."
When you do not purchase equipment with your own funds or bank loans but instead use a finance lease, the monthly lease fee is composed of the following elements.
| Estimation Item | Calculation Formula | Amount (Excl. Tax) |
|---|---|---|
| Property Main Body Price | — | 200,000,000 Yen |
| Monthly Lease Fee | 200 Million Yen × 0.95% | 1,900,000 Yen / Month |
| Annual Lease Fee | 1.90 Million Yen/month × 12 months | 22,800,000 Yen / Year |
| Total Lease Fee for 10 Years | 1.90 Million Yen/month × 120 months | 228,000,000 Yen |
| (Recalculation: Total Interest, Tax, Insurance) | Total 228 Million Yen - Main Body 200 Million Yen | 28,000,000 Yen (+14% relative to main body) |
* In addition to the above, daily manufacturer maintenance costs (OPEX: approx. 6 to 10 million yen annually) will be incurred separately.
This is a comparison of the financial impact between "Purchasing (10-year depreciation)" and a "10-Year Lease" for equipment worth 200 million yen.
| Comparison Item | Purchase (10-Year Straight-Line Depreciation) | 10-Year Finance Lease |
|---|---|---|
| Initial Cash Outflow | 200 Million Yen (or execution of borrowing) | 0 Yen (Only the first monthly fee) |
| 1st Year Expensing (P/L) | Depreciation Expense 20 Million Yen / Year | Lease Fee 22.8 Million Yen / Year |
| Interest & Total Cost | Bank borrowing interest only (Low total cost) | Includes fees, taxes, and insurance (Total cost slightly higher) |
| Fixed Asset Tax & Payment Administration | Requires in-house declaration, payment, and management | Handled by the lease company (No administrative burden) |
| Ownership After Period Ends | Self-ownership (Can be used for free from the 11th year onwards) | Return or Re-lease (Continue at e.g., 1/10 of the annual amount) |
There is no need for a large initial lump sum of funds, making it easier to offset the monthly lease fee against the monthly effects of improved storage efficiency and reduced labor costs (amount of effect).
With self-ownership, dismantling or relocating in less than 10 years results in fixed asset sales losses and retirement losses. If using rented properties or if there is a possibility of future line changes, careful attention must be paid to the period setting.
This is a comparison table for when storing and transporting pallet-unit cargo, comparing the conventional "Floor stacking / Fixed pallet racks + Forklift operation" versus the introduction of a "PL Automated Warehouse (Pallet AS/RS: 200 Million Yen Scale)".
| Comparison Item | Floor Stacking / Pallet Racks + Lift | PL Automated Warehouse (Pallet AS/RS) |
|---|---|---|
| Initial Investment (CAPEX) | Low (Approx. 10 - 20 Million Yen) | High (Approx. 200 Million Yen) |
| Required Tsubo Area (Assuming 1,000 PL) | Approx. 350 - 500 Tsubo | Approx. 100 - 150 Tsubo (Up to 70% reduction) |
| Main Operational Costs (OPEX) | Lift fuel/charging costs, annual inspection fees | Periodic maintenance/inspection & system fees (Approx. 5M - 8M / Year) |
| Required Labor Costs (Workers) | High (3-5 resident lift operators) | Extremely Low (About 1 person for input) |
| Operational Safety / Accident Risk | Risk of lift tipping / contact accidents | Extremely High (Travel area is completely unmanned) |
[Warehouses that should choose Floor Stacking / Pallet Rack operation]
[Warehouses that should choose a PL Automated Warehouse (200 Million Yen scale)]
This is a break-even simulation to reliably offset and turn profitable the fixed cost of a PL automated warehouse, "Approx. 2.5 Million Yen / Month (30 Million Yen annually)," solely through on-site improvement effects (rent cuts + labor cost cuts, etc.).
・Storage Efficiency Improvement: 250 tsubo reduction × 6,000 yen = 1.50 Million Yen / Month
・Labor Saving Effect: Reduction of 3 lift operators = 1.20 Million Yen / Month
・[Total Effect] 2.70 Million Yen / Month (Monthly Balance: +200,000 Yen / Month Surplus)
・Storage Efficiency Improvement: 200 tsubo reduction × 10,000 yen = 2.00 Million Yen / Month
・Labor Saving Effect: Reduction equivalent to 1.5 lift operators = 600,000 Yen / Month
・[Total Effect] 2.60 Million Yen / Month (Monthly Balance: +100,000 Yen / Month Surplus)
・Storage Efficiency Improvement: 150 tsubo reduction × 5,000 yen = 750,000 Yen / Month
・Labor Saving Effect: Reduction equivalent to 4 lift operators (dispatch, etc.) = 1.80 Million Yen / Month
・Mis-shipment / Accident Reduction: 100,000 Yen / Month
・[Total Effect] 2.65 Million Yen / Month (Monthly Balance: +150,000 Yen / Month Surplus)
| Unit Price per Tsubo of Own Warehouse | Example of Combined Conditions to Offset 2.5 Million Yen/Month |
|---|---|
| 5,000 Yen / Tsubo | Reduce 200 Tsubo (1.00M yen) + Reduce 3.8 Workers (1.50M yen) |
| 7,000 Yen / Tsubo | Reduce 200 Tsubo (1.40M yen) + Reduce 2.8 Workers (1.10M yen) |
| 10,000 Yen / Tsubo | Reduce 200 Tsubo (2.00M yen) + Reduce 1.3 Workers (500k yen) |