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MACRS Depreciation Calculator

Calculate US federal tax depreciation under MACRS (IRS Pub 946). Full schedule by property class, half-year, mid-quarter, or mid-month convention.

MACRS depreciation inputs

Cost after Section 179 and bonus depreciation.

Computers, copiers, autos, light trucks, office machines.

Used only when mid-quarter convention applies.

Total depreciation

$50,000.00

Recovered over 6 tax years using the half-year convention.

Recovery period

5 years

Tax years on schedule

6

Convention used

half-year

Depreciation schedule

YearPercentageDeductionAccumulatedRemaining basis
120.00%$10,000.00$10,000.00$40,000.00
232.00%$16,000.00$26,000.00$24,000.00
319.20%$9,600.00$35,600.00$14,400.00
411.52%$5,760.00$41,360.00$8,640.00
511.52%$5,760.00$47,120.00$2,880.00
65.76%$2,880.00$50,000.00$0.00

MACRS is the US federal tax method (IRS Pub 946). For GAAP or IFRS book reporting, use straight-line depreciation instead.

MACRS Property Class Reference

Recovery periods exposed by the calculator. The schedule depends on property class and convention.

Property ClassRecovery PeriodConvention ChoiceSchedule Output
3-year property3 yearsHalf-year or mid-quarterYearly deduction schedule
5-year property5 yearsHalf-year or mid-quarterYearly deduction schedule
7-year property7 yearsHalf-year or mid-quarterYearly deduction schedule
15-year property15 yearsHalf-year or mid-quarterYearly deduction schedule
Residential rental property27.5 yearsMid-monthYearly deduction schedule
Nonresidential real property39 yearsMid-monthYearly deduction schedule

Use the property classification and convention that apply to your asset. Tax treatment should be confirmed for the specific asset.

Frequently Asked Questions about the MACRS Depreciation Calculator

What is MACRS?
MACRS (Modified Accelerated Cost Recovery System) is the US federal tax depreciation method required for most property placed in service after 1986. It uses fixed IRS percentage tables based on property class (3, 5, 7, 10, 15, 20, 27.5, or 39 years) and convention (half-year, mid-quarter, or mid-month).
Which property class applies to my asset?
Common classes: 3-year (some tractors, race horses), 5-year (vehicles, computers, office equipment), 7-year (office furniture, machinery), 15-year (land improvements), 20-year (farm buildings), 27.5-year (residential rental), 39-year (commercial buildings). IRS Pub 946 has the full list.
What is the half-year convention?
Under the half-year convention, all property is treated as if placed in service mid-year. You get half a year of depreciation in year 1, half a year in the final year, and a full year in between. This applies unless mid-quarter (if >40% of basis is placed in service in Q4) or mid-month (real property) applies.
When does the mid-quarter convention kick in?
If more than 40% of the total basis of all property placed in service during the year falls in the fourth quarter, the IRS requires mid-quarter treatment for everything that year, not just Q4 acquisitions. Each quarter gets its own percentage table.
Can I take Section 179 or bonus depreciation instead?
For tax years beginning in 2026, the Section 179 maximum is $2,560,000, subject to a $4,090,000 phaseout threshold, taxable-income limits, property eligibility, and other rules. Eligible property acquired after January 19, 2025 may qualify for 100% additional first-year depreciation. This calculator models only a regular MACRS schedule and does not determine eligibility or safely calculate the remaining basis after either election.

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