MACRS recovery periods, and why the same asset can carry two different lives

On a printed depreciation schedule the recovery period is a bare number in a narrow column. 5.0.
7.0. 39.0. No explanation of where it came from, and none available from anything else on the
row.

Most of the time it is unremarkable. Occasionally two rows that look like the same kind of thing
carry different numbers, and the instinct is to treat one of them as a mistake to be tidied up
during a migration.

That instinct is usually wrong, and acting on it is the most expensive thing a preparer can do while
moving an asset base between systems. The recovery period does not follow from what an asset is. It
follows from what an asset is and what business it is used in, and the second half of that is not
printed anywhere on the schedule.

The GDS recovery periods, class by class

Under the general depreciation system, these are the classes:

Class	Recovery period	Typical contents
3-year	3	Tractor units for over-the-road use, certain special tools, qualified rent-to-own property
5-year	5	Automobiles and light trucks, computers and peripheral equipment, office machinery, appliances and furniture in residential rental property
7-year	7	Office furniture and fixtures, agricultural machinery, and anything with no class life not otherwise classified
10-year	10	Vessels and barges, single-purpose agricultural or horticultural structures, fruit and nut trees
15-year	15	Land improvements such as roads, fences and shrubbery; qualified improvement property; certain restaurant property
20-year	20	Farm buildings other than single-purpose structures, municipal sewers
25-year	25	Water utility property
Residential rental	27.5	Buildings where 80% or more of gross rental income is from dwelling units
Nonresidential real	39	Commercial buildings placed in service after 12 May 1993

The 31.5-year period still appears on long-lived schedules — it was the nonresidential real class
before the 39-year period replaced it, and assets placed in service under it stay on it.

Two entries in that table deserve to be pulled out, because they explain more than they look like
they do.

The 7-year class is the catch-all. Property with no class life, not otherwise classified, is
7-year property. A great many miscellaneous fixed assets end up there for that reason rather than
because anyone identified them as belonging with office furniture.

Qualified improvement property is 15-year, which it was not always. It was intended to be
15-year from 2018, ended up as 39-year through a drafting error, and was corrected retroactively in
2020. Schedules spanning those years can carry both treatments for genuinely similar-looking
improvements, and neither is a transcription error.

Why the same asset can carry two different lives

Publication 946 does not have one table. It has two, and the relationship between them is where the
lookup stops being mechanical.

Table B-1 lists specific depreciable assets used in all business activities — office furniture,
computers, automobiles. Table B-2 lists assets used in specific business activities, organised
by industry.

When an asset appears in B-1 but the taxpayer's activity is described in B-2, the activity-based
class in B-2 generally governs. The consequence is direct: the same physical machine can sit in
different classes depending on the business it is used in, and both classifications are correct.

Which means a lookup table — this one included — can narrow the question and cannot close it. The
fact that closes it is the client's business activity, and that fact is not on the depreciation
schedule. It is not on the Form 4562 either.

This is the reason a life that looks anomalous on an inherited schedule deserves a question to the
prior preparer rather than a correction. The row may be reflecting something about the client's
activity that the person reading it does not have.

The lives looked up most — computers, office furniture, land improvements, 27.5-year and 39-year property

Computer depreciation life is 5 years under GDS. Computers and peripheral equipment sit in the
5-year class along with automobiles, light general-purpose trucks and office machinery such as
copiers. Under the alternative depreciation system the period is longer.

Office furniture and fixtures are 7-year property — desks, chairs, filing cabinets, shelving. In
a residential rental context, furniture and appliances are 5-year rather than 7-year, which is one
of the more common places two similar-sounding descriptions diverge legitimately on the same
schedule.

Land improvements are 15 year property — paving, fencing, landscaping, drainage. Land itself
is never depreciable, which is why import formats carry a distinct code for it and why a land row
with a method and a life on it is worth a second look.

27.5 year depreciation is residential rental property, defined by the 80% gross rental income
test. 39 year depreciation is nonresidential real property placed in service after 12 May 1993.
Both run straight line under the mid-month convention, so their first-year figures depend on the
month rather than the quarter — the mechanics of that are in
the three MACRS conventions.

ADS, and the longer periods

The alternative depreciation system runs straight line over generally longer periods, and it is
mandatory for certain categories — listed property used 50% or less in a qualified business use,
tax-exempt use property, property used predominantly outside the United States, certain farming
property — as well as available by election.

Under ADS, residential rental property is 30 years for property placed in service after 2017 and 40
years before that; nonresidential real property is 40 years; and personal property with no class
life is 12 years. Those three periods have their own rows on Form 4562, in Section C of Part III,
separately from the GDS rows in Section B.

The practical signal on a schedule is a straight-line row with a recovery period noticeably longer
than its apparent class. That is usually ADS rather than an error, and it is another life not to
tidy up.

What a life means on a schedule you did not produce

Everything above describes how a recovery period is arrived at. On an inherited schedule the
question is different and much narrower: what did the prior preparer's software actually use?

That number is a fact about a filed return. It drives the remaining depreciation, it has to match
what the client's history assumes, and changing it during a migration silently changes the client's
position without anything on the new schedule marking that it happened. A life is transcribed, not
reviewed — and if it looks wrong, the useful response is a question, not a keystroke.

The one case that genuinely needs attention is a life the destination's import cannot express.
Intuit's imports encode the recovery period and the method together as a single numeric code drawn
from a fixed table, so a life with no entry in that table has nowhere to go. That is a format
limitation rather than a tax question, and it is covered in
reading a MACRS depreciation schedule.

What we do with it

The life is read from the schedule and written to the import file. It is never derived from the
description, never adjusted toward what the class table suggests, and never filled in when the
column is blank.

Where the printed life and method resolve to exactly one code in the destination's table, they are
transcribed together. Where they do not — a life absent from the print, or a life the destination
does not enumerate — the field comes back empty with the reason attached, and that flag blocks the
download until a preparer resolves it. Guessing here would mean choosing a recovery period, which
is a determination about the return rather than a transcription of a document, and it is not
something this tool does.

If the schedule in front of you came from a prior preparer along with a new client, the wider
question of what that document does and does not carry is on the
prior year depreciation schedule page.

FAQ

What is the depreciation life of a computer?

Computers and peripheral equipment are 5-year property under the general depreciation system, in the
same class as automobiles, light general-purpose trucks and office machinery. Under the alternative
depreciation system the recovery period is longer.

What is 15 year property?

Land improvements such as paving, fencing, landscaping and drainage, together with qualified
improvement property and certain restaurant property. Land itself is not depreciable at all.

What is 27.5 year depreciation?

The recovery period for residential rental property under GDS, using straight line and the mid-month
convention. A building qualifies as residential rental where 80% or more of its gross rental income
comes from dwelling units.

What is 39 year depreciation?

The GDS recovery period for nonresidential real property placed in service after 12 May 1993, also
straight line under the mid-month convention. Property placed in service before that date uses the
earlier 31.5-year period and stays on it.

Why do two similar assets have different recovery periods on the same schedule?

Most often because Publication 946 assigns classes by asset in Table B-1 and by business activity in
Table B-2, and the activity-based class generally governs where both apply. Furniture in a
residential rental context is 5-year while office furniture is 7-year, for the same reason. Assets
placed in service in different years can also sit under rules that changed between them.

Should I correct a recovery period that looks wrong on an inherited schedule?

The life on that schedule is what a filed return used, and changing it during a migration alters the
client's position without leaving a mark on the new document. The classification may depend on facts
about the client's business that the schedule does not print. A question to the prior preparer
resolves it; a keystroke conceals it.