The tool forces the user to choose the correct rule path instead of hiding the assumption.
Tax Depreciation
Bonus depreciation math with the January 2025 rule path made explicit.
See the immediate first-year deduction and the remaining MACRS basis without guessing which post-January 2025 rule path applies.
Direct answerA bonus depreciation calculator estimates the first-year deduction based on the eligible basis, business use, and the current-law or transition-rule percentage that applies to the property.
Browser-first workflowFunctional tool on topExport-ready output
1. Build the scenario
CalculatorUse the inputs or load the sample scenario. Export the result if you need to move the output into a workpaper or review deck.
Enter assumptions or load a sample scenario to see the results.
Live Tool
Bonus Depreciation Calculator in the browser
The functional tool stays first: use the calculator, review the output, and only then scroll into the guide below.
IRS-aligned assumptions reviewed March 11, 2026
Uses current IRS guidance for post-January 19, 2025 100% bonus depreciation and the transition-rate path.
What this tool is built to solve
A bonus depreciation calculator estimates the first-year deduction based on the eligible basis, business use, and the current-law or transition-rule percentage that applies to the property.
The page shows the remaining basis after bonus so the next step is clear.
The deduction is calculated from adjusted eligible basis, not gross cost.
Key signals
Use these cards to explain the result before you move into a broader workpaper or decision memo.
Detailed breakdown
The breakdown cards and table keep the math explainable and export-ready.
The functional calculator sits above the guide so users solve the immediate task before they read.
Each page returns summary cards and a breakdown table, not just one number.
The tool runs in the browser and does not require a platform rollout to be useful.
The page uses the same visual system as the main Ledger Summit site and tools library.
Guide Below The Tool
How to use bonus depreciation calculator well
Written for searchers, answer engines, and busy accounting teams: clear definitions, practical steps, and the review context users usually need next.
A bonus depreciation calculator estimates the first-year deduction based on the eligible basis, business use, and the current-law or transition-rule percentage that applies to the property.
Controllers, tax preparers, founders, and finance teams comparing immediate expensing against remaining MACRS basis.
Eligible basis, business use, property rule path, and whether the reduced-rate election or long-production property rules apply matter most.
Workflow
Four practical steps
Use the tool as a fast decision layer before you move the output into a full depreciation schedule, fixed-asset rollforward, tax workpaper, or financing memo.
1
Enter the assumptions that actually drive the result.Start with cost, life, basis, or financing inputs that match the real asset decision or accounting entry.
2
Run the calculation before opening a larger model.Use the live tool to see the first answer quickly instead of rebuilding the math from scratch.
3
Review the summary cards and table together.The cards explain the headline result while the table keeps the calculation defendable in review.
4
Export the result if it needs to move downstream.Use the export when the output needs to be copied into a tax file, fixed-asset schedule, or planning deck.
Review Checklist
What reviewers usually validate first
These are the areas teams usually challenge first once the calculation is visible.
Make sure the result is built from the right cost, life, basis, or financing assumptions before discussing the answer.
Check whether the method or rule path fits the accounting policy, tax rule, or financing decision you are actually making.
Partial-year timing, conventions, and up-front cash items are usually where the first errors appear.
Users often focus on the headline result and miss what is still left after the first calculation.
Confirm the output can move cleanly into the workpaper, schedule, or deck that depends on it.
If a result drives a filing or policy-sensitive entry, validate edge cases before booking or filing.
The functional tool stays on top so users can solve the immediate problem before reading a guide.
The result cards and table explain what the output means instead of leaving users with a raw number.
Ledger Summit can build richer internal tooling later, but this page delivers value now.
FAQ
Bonus Depreciation Calculator questions, answered directly
Written in short form so users and answer engines can get a clear response without generic filler.
A bonus depreciation calculator estimates the first-year deduction based on the eligible basis, business use, and the current-law or transition-rule percentage that applies to the property.
Controllers, tax preparers, founders, and finance teams comparing immediate expensing against remaining MACRS basis.
Eligible basis, business use, property rule path, and whether the reduced-rate election or long-production property rules apply matter most.
Yes. It includes the current-law 100% path for qualified property after January 19, 2025 and a transition-rule path for property tied to the January 2025 changeover.
No. This page runs in the browser and does not require a file upload for the base workflow.
Next Step
Need this connected to a broader workflow?
Use the free browser tool first. If you need a richer fixed-asset model, automation, or an internal production version, Ledger Summit can build the next layer around your process.
Book a free call