Cost Recovery Deduction Calculator
When a business buys equipment, a vehicle, or machinery, the cost usually cannot be deducted all at once. It is recovered over the asset’s life, and the size of each year’s deduction depends entirely on the method: straight-line spreads it evenly, declining balance front-loads it, units of production follows actual use, and MACRS follows the IRS percentage tables.
This calculator runs all four methods on your numbers and returns a year-by-year schedule with the deduction, accumulated depreciation, ending book value, and the tax saving at your rate. It is a depreciation tool, not a payback tracker: if you want the share of a project cost that has been earned back so far, that is the separate cost recovery percentage calculator.
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| Year | Deduction | Accumulated | Book value | Tax saving |
|---|
Planning estimates only. The MACRS mode uses the IRS half-year percentage tables for 3, 5, 7, and 10-year property. It does not apply Section 179 expensing, bonus depreciation, the mid-quarter convention, or the 27.5 and 39-year real property schedules, so confirm the final deduction on your return with your tax records or a tax professional.
Quick Answer
Key takeaways
- All four methods recover the same book total, cost minus salvage. They differ only in timing, and timing is what changes your tax bill each year.
- MACRS is the exception: it recovers the full cost, salvage ignored, on IRS percentages, so a 5-year asset is deducted across six tax years.
- The tax saving column is the number that matters for cash flow. A $10,000 deduction at a 21% rate is $2,100 of tax not paid that year.
- Units of production is the only method here tied to use instead of time: $0.45 per unit on the worked example, so a busier year deducts more.
- Quick Answer
- How to use the cost recovery deduction calculator
- The four cost recovery formulas, side by side
- Worked example: one $50,000 machine, four different schedules
- What competing calculators miss
- MACRS property classes and the half-year convention
- Book value is not market value
- First-year elections this calculator leaves out, on purpose
- Frequently Asked Questions
- Add This Calculator to Your Website
- References
How to use the cost recovery deduction calculator
Start with the method, because it changes which inputs appear. Straight-line and declining balance ask for salvage value and useful life. Units of production swaps the life field for total expected units and the units produced this period. MACRS swaps both for a property class and hides the salvage field, because the IRS tables do not use one.
Enter the asset cost. Use the full depreciable basis: what you paid, plus delivery, installation, and setup needed before the asset could work.
Add salvage value and life, or the MACRS class. For a tax estimate, match the class to the asset type using the class table further down this page.
Add your tax rate. The optional rate turns every deduction row into a tax saving row, which is the figure to compare when you are choosing between methods.
Read the schedule, not just year 1. Accelerated methods win early and give it back later. The accumulated and book value columns show exactly where the crossover happens.
Run the same asset under two methods before you commit to one for your books. The totals will match; the year-by-year pattern will not, and that pattern is what your accountant will ask about.
The four cost recovery formulas, side by side
Each method allocates the same depreciable base in the book cases, cost minus salvage, but the driver differs: time, a percentage of book value, output, or an IRS table.
Straight-line: (cost - salvage value) / useful life, the same amount every year.
200% declining balance: opening book value x (2 / useful life), switching to straight-line on the remaining balance when that gives more, and never dropping below salvage value.
Units of production: (cost - salvage value) / total expected units x units produced this period.
MACRS: cost x the IRS percentage for the property class and year, salvage value ignored.
The Internal Revenue Service sets the MACRS percentages in IRS Publication 946, How To Depreciate Property, and the statute behind them, section 168 of the tax code, prescribes the 200% declining balance method with a switch to straight-line for 3, 5, 7, and 10-year property. The book methods come from standard financial accounting practice, where, as accounting textbooks such as OpenStax Principles of Accounting put it, the total depreciation over the asset's life is the same under every method; only the pattern changes.
| Method | First deduction on the worked example | Total recovered | Best fit |
|---|---|---|---|
| Straight-line | $4,500.00 per year | $45,000.00 | Assets that deliver value evenly |
| 200% declining balance | $10,000.00 in year 1 | $45,000.00 | Vehicles, computers, fast-wearing assets |
| Units of production | $5,400.00 for 12,000 units | $45,000.00 | Machinery whose wear follows output |
| MACRS, 5-year class | $10,000.00 in year 1 | $50,000.00 | US tax returns for personal property |
Worked example: one $50,000 machine, four different schedules
The calculator is pre-filled with this case: a $50,000 machine, $5,000 salvage value, 10-year life, 21% tax rate. Every figure below is what the tool returns for those inputs.
Straight-line is the flat line: $4,500.00 a year for ten years, $945.00 of tax saving a year, and a book value of $36,500.00 after year 3. Declining balance starts at $10,000.00, falls through $8,000.00 and $6,400.00, and then, in years 9 and 10, the straight-line switch takes over and levels the deduction at $1,694.30 for both years so the book value lands exactly on the $5,000.00 salvage floor. Units of production ignores the calendar: at $0.45 per unit, a 12,000-unit period deducts $5,400.00 and saves $1,134.00 in tax.
| Year | MACRS rate, 5-year | Deduction | Accumulated | Book value | Tax saving at 21% |
|---|---|---|---|---|---|
| 1 | 20.00% | $10,000.00 | $10,000.00 | $40,000.00 | $2,100.00 |
| 2 | 32.00% | $16,000.00 | $26,000.00 | $24,000.00 | $3,360.00 |
| 3 | 19.20% | $9,600.00 | $35,600.00 | $14,400.00 | $2,016.00 |
| 4 | 11.52% | $5,760.00 | $41,360.00 | $8,640.00 | $1,209.60 |
| 5 | 11.52% | $5,760.00 | $47,120.00 | $2,880.00 | $1,209.60 |
| 6 | 5.76% | $2,880.00 | $50,000.00 | $0.00 | $604.80 |
Notice year 2 is the biggest MACRS year, not year 1. The half-year convention holds year 1 to half a year of depreciation, so the schedule spills into a sixth tax year and the second year catches up. The same effect makes 7-year property deduct across eight tax years: on this machine that would be $7,145.00 in year 1 and $12,245.00 in year 2.
What competing calculators miss
Most depreciation tools reviewed for this page pick one lane. MACRS-only calculators give the tax schedule but nothing to compare it with; book-method calculators stop at three methods and never show the IRS tables at all.
Miss 1: no tax saving per year. A deduction is only worth your tax rate times its size, yet most tools make you multiply that out yourself for every row. Here the saving sits next to the deduction, so the real cash difference between straight-line and accelerated is visible at a glance: $945.00 a year against $2,100.00 in year 1.
Miss 2: MACRS with no schedule. Several tools return a single first-year MACRS figure and hide the table behind it. The full six-row schedule matters because year 2 is larger than year 1 under the half-year convention, and a one-number answer hides that completely.
Miss 3: a declining balance method with no switch. Pure declining balance never quite reaches salvage value, so tools that skip the straight-line switch leave a stranded balance at the end of the life. This calculator switches when straight-line on the remaining balance gives more, which is why years 9 and 10 of the worked example level off at $1,694.30 and the book value ends exactly at salvage.
MACRS property classes and the half-year convention
Your class decides the whole schedule, so it has to match the asset, not the answer you want. Publication 946 assigns recovery periods by asset type: many manufacturing tools are 3-year, computers, vehicles, and most equipment used in services are 5-year, office furniture and most machinery are 7-year, and certain longer-lived equipment is 10-year. Real property is separate: 27.5 years for residential rental and 39 years for nonresidential, both straight-line, and neither is covered by this calculator.
| Class | IRS percentages by year | Schedule length |
|---|---|---|
| 3-year | 33.33, 44.45, 14.81, 7.41 | 4 tax years |
| 5-year | 20.00, 32.00, 19.20, 11.52, 11.52, 5.76 | 6 tax years |
| 7-year | 14.29, 24.49, 17.49, 12.49, 8.93, 8.92, 8.93, 4.46 | 8 tax years |
| 10-year | 10.00, 18.00, 14.40, 11.52, 9.22, 7.37, 6.55, 6.55, 6.56, 6.55, 3.28 | 11 tax years |
Every row sums to 100%, which is the full cost, because salvage value is treated as zero under the statute. One related warning: owners of buildings sometimes split a property into shorter-lived components so more of the cost lands in the 5 and 7-year classes. That is a formal study, and the cost segregation calculator estimates what that reallocation is worth before you commission one.
Book value after depreciation is an accounting figure, not a resale price, and it feeds other tax calculations when you sell or retire the asset. The asset adjusted basis calculator works through what accumulated depreciation does to your basis at disposal, including the gain or loss that follows.
Book value is not market value
The book value column is what is left to depreciate, nothing more. A delivery van carried at $24,000.00 after two MACRS years might sell for far less, or occasionally more, than that figure; the schedule does not track the used market at all. That gap is why a car valued for resale needs a market-based estimate such as the BMW depreciation calculator rather than a tax schedule, and why lenders and buyers will never accept book value as a price.
Where book value does rule is inside your own accounts and on your return: it sets the remaining deductions, the gain or loss on disposal, and the depreciation recapture you may owe on a sale. Keep the schedule this calculator produces with the asset's records, and the year you sell it becomes a short calculation instead of a reconstruction.
First-year elections this calculator leaves out, on purpose
Two provisions can dwarf the regular schedule in year 1, and neither is a depreciation method, so both sit outside this tool. Section 179 lets a business expense qualifying property immediately up to a statutory limit; according to the Section 179 deduction limits published for 2026, that ceiling is $2,560,000, with a phase-out once qualifying purchases pass $4,090,000. Bonus depreciation under section 168(k) then applies to the remaining basis, and the IRS order is fixed: Section 179 first, bonus second, regular MACRS on whatever is left.
The mid-quarter convention is the other gap to know about. If more than 40% of the year's MACRS personal property is placed in service in the last three months, Publication 946 requires mid-quarter percentages instead of the half-year tables used here, and first-year deductions shrink. Heavy fourth-quarter buying is exactly when that rule bites, so check it before relying on a half-year schedule for a December purchase.
Frequently Asked Questions
It is the tax term for recovering the cost of a business asset over its useful life through depreciation deductions. Instead of deducting the full purchase price at once, you deduct a portion each year. MACRS, the Modified Accelerated Cost Recovery System, is the US tax system that sets the schedule for most business property.
Straight-line deducts the same amount every year. Declining balance deducts a fixed percentage of the remaining book value, so the early years are bigger and the later years smaller. Over the asset's life both recover the same total, cost minus salvage value; they differ only in timing.
The IRS designed MACRS to recover the full cost of the asset regardless of resale value, so the percentage tables are built on the full cost and the statute treats salvage value as zero. For book depreciation you still subtract salvage, because financial reporting aims to match the cost you actually consume.
MACRS assumes you placed the asset in service at mid-year, so year one gets half a year's depreciation and the recovery stretches one year past the class life. That is why the 5-year table has 6 rows and why year 2, at 32%, is larger than year 1, at 20%, for 5-year property.
IRS Publication 946 lists recovery periods by asset type: 3-year for certain manufacturing tools, 5-year for computers and vehicles, 7-year for most machinery and office furniture, and 10-year for longer-lived equipment. Real property uses 27.5 or 39 years, which this calculator does not cover.
Each year the calculator compares the declining balance deduction with straight-line on the remaining book value over the remaining life, and takes the larger one. Pure declining balance never quite reaches salvage value, so the switch guarantees the asset finishes exactly at salvage. In the worked example it takes over in years 9 and 10, which both deduct $1,694.30.
No. Section 179 and bonus depreciation are first-year elections you apply to the asset's basis before the regular schedule, and buildings use the 27.5 and 39-year straight-line schedules. This calculator covers the four ongoing methods for equipment-type property: straight-line, 200% declining balance, units of production, and MACRS for 3, 5, 7, and 10-year classes.
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References
- Internal Revenue Service, "Publication 946 (2025), How To Depreciate Property" - the MACRS percentage tables, property classes, and conventions used by this calculator. IRS: Publication 946, How To Depreciate Property. Accessed October 2026.
- Legal Information Institute, Cornell Law School, "26 CFR 1.168(a)-1: Modified accelerated cost recovery system" - the regulation defining MACRS eligibility and mandatory use. Cornell LII: 26 CFR 1.168(a)-1, Modified Accelerated Cost Recovery System. Accessed October 2026.
- LegalClarity, "26 USC 168: The Accelerated Cost Recovery System Explained" - a plain-language walkthrough of the statute, including the rule that salvage value is treated as zero. LegalClarity: 26 USC 168 Explained. Accessed October 2026.
- OpenStax, Rice University, "Principles of Accounting, Volume 1: Explain and Apply Depreciation Methods to Allocate Capitalized Costs" - the textbook treatment of straight-line, units of production, and double declining balance. OpenStax: Depreciation Methods. Accessed October 2026.
- AccountingTools, "Depreciation definition" - characteristics of depreciation, including its non-cash nature and effect on book value and taxable income. AccountingTools: Depreciation Definition. Accessed October 2026.
- LegalClarity, "How to Calculate MACRS Depreciation Step by Step" - worked MACRS examples checked against the Publication 946 tables, including the mid-quarter convention trigger. LegalClarity: How to Calculate MACRS Depreciation. Accessed October 2026.
- Section179.org, "2026 Section 179 Deduction: Limits, Phase-Outs and Examples" - the current Section 179 ceiling and phase-out thresholds cited in this article. Section179.org: 2026 Section 179 Deduction. Accessed October 2026.
- National Funding, "Section 179 Tax Deduction" - a comparison of Section 179 and bonus depreciation, including which one can create a loss. National Funding: Section 179 Deduction Guide. Accessed October 2026.
- LegalClarity, "Do You Have to Take Section 179 Before Bonus Depreciation?" - the required order of deductions: Section 179 first, then bonus, then MACRS. LegalClarity: Section 179 Before Bonus Depreciation. Accessed October 2026.
- UMA Technology, "How to Calculate MACRS" - a step-by-step MACRS example for 5-year property using the IRS percentages. UMA Technology: How to Calculate MACRS. Accessed October 2026.