Form 4562, line by line — and the things it cannot tell you

You have a new client's prior-year return and, behind it, a depreciation schedule from the previous preparer. The plan is to reconcile one against the other and rebuild the asset detail in your own software.

Form 4562 looks like the natural place to start. It is the depreciation form, it is signed, it is part of a filed return, and it carries totals that ought to anchor everything else.

It will not do the job, and the reason is structural rather than a matter of the form being filled in badly. Form 4562 reports one tax year. It aggregates most of what it reports. And the number that matters most when you are moving a client between software — what each asset has already taken — does not appear anywhere on it.

That is worth knowing before you spend an afternoon trying to make the two documents agree. What follows is a part-by-part read of the form from the preparer's side of the desk: what each part actually asks for, which lines a printed schedule can support, and where the schedule is the only document that will answer.

The form covers one year; the schedule covers all of them

Form 4562 is a current-year return form. Every dollar figure on it, with one exception, describes what happened during the tax year being filed: what was placed in service, what was elected, what was deducted.

A depreciation schedule is the opposite. It is a running record. Each row carries an asset's in-service date, its cost, its method and life, what it has taken in prior years, and what it takes this year. It spans every year the asset has been held.

The two documents overlap in exactly one place — the current year's deduction — and diverge everywhere else. Reconciling the current-year column of a schedule to the 4562's total is a reasonable check. Expecting the 4562 to reproduce the schedule is not.

There is a second structural point that catches people, and it matters more than the first: the 4562 is not an asset list. Most of the form reports by class, not by asset. Two exceptions exist, and they are covered below.

Part I — §179, and only this year's election

Part I runs lines 1 through 13 and computes the §179 deduction for the year.

Lines 1 through 5 are arithmetic on the statutory limits: the maximum for the year, the total cost of qualifying property placed in service, the threshold above which the maximum starts to phase down, the reduction, and the resulting dollar limitation. The figures on lines 1 and 3 are set by statute for that year and printed in the instructions, which is why a 4562 from six years ago shows different numbers in the same boxes.

Line 6 is the only part of the section that names anything. It has three columns — description of property, cost (business use only), and elected cost — and it is where individual assets appear. Line 7 pulls listed property across from line 29. Lines 8 through 13 finish the computation and carry any disallowed amount forward.

For a migration, the useful thing about Part I is also its limit: it tells you what was elected that year. An asset placed in service four years earlier, with §179 taken then, appears nowhere in Part I of the current return. Its §179 history lives on the 4562 from the year of the election, and on the depreciation schedule — which is precisely the component that Lacerte's summary depreciation schedule folds into a single combined figure and does not print separately.

Part II and line 17 — bonus, and the line that swallows an entire schedule

Part II is three lines. Line 14 is the special depreciation allowance — bonus — for qualified property other than listed property placed in service during the year. Line 15 covers property subject to a §168(f)(1) election. Line 16 is other depreciation, including ACRS, which is where genuinely old assets surface.

The applicable bonus percentage depends on when the property was acquired and placed in service, and it has changed more than once across the span of years a typical schedule covers. A single schedule can easily contain assets bought under three different rates.

Then comes line 17, at the top of Part III, and it deserves its own paragraph.

Line 17 is the entire prior-year asset base, expressed as one number. It reads "MACRS deductions for assets placed in service in tax years beginning before" the current year. A client with two hundred assets acquired over fifteen years contributes a single figure to line 17. No description, no dates, no methods, no lives, no per-asset amounts.

This is the line that makes the 4562 useless as a migration source and the schedule indispensable. The multi-page document the prior preparer sent you exists to support line 17. Line 17 does not support it back.

Part III, Section B — six columns, and why every import asks for the same six

Section B of Part III is where current-year additions are reported, and its column headings are worth reading closely because they are the same fields every destination import demands:

Column	Heading
(a)	Classification of property
(b)	Month and year placed in service
(c)	Basis for depreciation (business/investment use only)
(d)	Recovery period
(e)	Convention
(f)	Method
(g)	Depreciation deduction

Rows 19a through 19i are the property classes under the general depreciation system: 3-year, 5-year, 7-year, 10-year, 15-year, 20-year, 25-year, residential rental, and nonresidential real. Section C, lines 20a through 20d, does the same for the alternative depreciation system — class life, 12-year, 30-year and 40-year.

Note what that structure implies. There is one row per class, not one row per asset. Six machines placed in service in the same year, all 7-year property, arrive as one figure on line 19c. The form has no room to distinguish them and does not try.

So even for the current year — the year the 4562 does cover in full — the form gives you class totals. The asset detail exists only on the schedule, in the client file, or nowhere.

The overlap with the import formats is not a coincidence: description, in-service date, cost, method, life and convention are the irreducible set. Every destination wants them, whether it is Drake's 4562 import, the Lacerte Fixed Asset Import, or ProConnect's depreciation template. Where they differ is in how they are encoded — Intuit's imports want a numeric method code that carries life and method together, so "5 yr % Personal" and "5 yr SL Personal" are different codes rather than a life field plus a method field. Drake takes a positional spreadsheet instead. The underlying facts are the same six.

Part V — listed property, and the column with nowhere to go

Part V is the first of the two places the form itemises.

Section A asks, per property: type, date placed in service, business/investment use percentage, cost or other basis, basis for depreciation, recovery period, method and convention, depreciation deduction, and elected §179 cost. Line 25 is the special depreciation allowance for qualified listed property. Line 26 covers property used more than 50% in a qualified business use; line 27 covers property used 50% or less. Lines 28 and 29 total the columns and feed back to lines 21 and 7.

Sections B and C then ask about vehicle use and about employer policies, in questions rather than figures.

The business-use percentage in column (c) is the interesting one for a migration, because it is a per-asset fact that the destination may have nowhere to put. The Lacerte import has no field for business-use percentage at all, and none for state prior depreciation either. A schedule can print the number, the 4562 can report it, and the import can still drop it — which is a different failure from the schedule never having printed it, and worth keeping straight.

That percentage is also what §179(d)(10) turns on when qualified business use falls to 50% or below during the recovery period. The recapture is measured against the §179 actually taken, which returns you to the same problem: the current 4562 does not carry a prior year's election.

Part VI — amortisation is reported here, not with depreciation

Part VI is the second place the form itemises, and it is a separate part for a reason.

Line 42 covers costs whose amortisation begins during the current year, with columns for description of costs, date amortisation begins, amortisable amount, code section, and amortisation period or percentage. Line 43 is a single figure for costs that began amortising in an earlier year — the amortisation equivalent of line 17, with the same blind spot. Line 44 totals them.

This matters when reading a printed schedule because many suites print amortised intangibles in the same asset listing as depreciable property, sometimes with a method column reading "AMT" or "Amort" or a code section rather than a MACRS method. They are the same list on paper and different parts of the form, and the destination import usually treats them differently too.

What a 4562 cannot tell you, and when there isn't one at all

Collecting the gaps in one place:

Prior depreciation, per asset. Nowhere on the form. Line 17 and line 43 hold the aggregates, and aggregates do not decompose.

Prior §179 and prior bonus, per asset. Only on the 4562 filed for the year of the election, if you have it and if the asset can be identified in the class-level rows — which it often cannot.

Anything about assets placed in service before the current year, other than that they exist. No descriptions, no dates, no lives.

Whether the form is there at all. A separate Form 4562 is filed for each business or activity, and it is required only in specific circumstances — property placed in service during the year, a §179 deduction or carryover, listed property, amortisation beginning during the year, a vehicle deduction reported on certain forms, and, for corporate returns other than an 1120-S, always. A Schedule C whose only depreciation comes from assets placed in service years ago may carry no 4562 whatsoever. The deduction appears on the schedule's own expense line and the supporting detail exists only in the preparer's fixed asset module.

That last point is the one that surprises people mid-migration. You go looking for the prior year's 4562 to reconstruct the asset base, and there isn't one, because there was nothing that year to require it.

The route that does work is the one that starts from the depreciation schedule: ask the prior preparer for the detailed variant rather than the summary, or for a fixed-asset export rather than a PDF. If you are working from what already landed in your inbox, the mechanics of doing that without re-keying are on the prior year depreciation schedule page.

What we do with it

This tool transcribes a printed schedule into the import file a destination accepts. It does not compute, infer or correct — and specifically, it does not reconstruct a 4562, reconcile to one, or fill in a component the schedule left unprinted.

Where a schedule prints prior depreciation as a single combined figure without its §179 and bonus components, those come back empty and flagged as absent from the source rather than written as zero, and the flag blocks the download until you clear it deliberately. Where a method or a category cannot be read with confidence, the same thing happens. The tie-out compares the totals printed on the PDF against the sum of the extracted rows; if they disagree, there is no file to download.

None of that is a substitute for the judgment about what any asset's treatment should be. That judgment is yours, and the tool is built to stay out of it.

FAQ

In what order is Form 4562 filled out?

Part I for the current year's §179 election, Part II for the special depreciation allowance and for line 17's carried-forward MACRS deductions, Part III Section B for current-year additions by property class, Part V for listed property, and Part VI for amortisation. The parts above walk each one in that order, alongside what a printed depreciation schedule does and does not supply for it.

Does Form 4562 show prior depreciation?

Not per asset. Line 17 reports MACRS deductions for assets placed in service in earlier years as a single combined figure for the activity, and line 43 does the same for amortisation that began in an earlier year. Neither breaks down by asset, and accumulated depreciation as a balance does not appear on the form at all.

Is Form 4562 an asset listing?

Only in two places. Part V itemises listed property and Part VI line 42 itemises costs beginning amortisation in the current year. Part III Section B reports current-year additions by property class — one row for 5-year property, one for 7-year, and so on — so several assets in the same class arrive as one figure.

What are the six columns in Part III, Section B?

Classification of property, month and year placed in service, basis for depreciation using business or investment use only, recovery period, convention, and method, with the resulting depreciation deduction in column (g).

Can I rebuild a client's fixed asset detail from prior years' Forms 4562?

Partially at best. The 4562 from the year an asset was placed in service reports its class, month and year, basis, life, convention and method — but aggregated with everything else in that class, so individual assets are only recoverable when a class happens to contain one. §179 elections on line 6 and listed property in Part V are named individually. Everything else is a class total.

Does every return include a Form 4562?

No. It is filed per business or activity and only when something requires it, such as property placed in service during the year, a §179 deduction or carryover, listed property, amortisation beginning that year, or a corporate return other than an 1120-S. An activity holding only assets placed in service in earlier years may file no 4562 at all, with the deduction appearing on the activity's own expense line.

Where does bonus depreciation appear on Form 4562?

Line 14 in Part II for qualified property other than listed property, and line 25 in Part V for qualified listed property. Both cover property placed in service during the current tax year; bonus taken in an earlier year is inside the line 17 aggregate and is not separately stated.