Why use DrossTally?
Full depreciation schedules — all five accounting methods plus complete MACRS with §179 and bonus depreciation — at no cost and with no account.
Depreciation tools are commonly paywalled
Accounting software suites frequently gate depreciation schedule generation behind a monthly subscription. Tax preparation services charge extra for MACRS schedules specifically. DrossTally computes the complete schedule for any asset class at no cost, because the underlying math isn't proprietary — it's just arithmetic the IRS publishes in a table.
MACRS, not just straight-line
The IRS requires MACRS for most depreciable business assets in the United States. Most free calculators implement straight-line depreciation only — the simplest method, but not the one the IRS uses for vehicles, equipment, or real estate improvements. DrossTally implements the full IRS half-year, mid-quarter, and mid-month conventions.
Book depreciation and tax depreciation are different
What you report to investors on financial statements (book depreciation) and what you report to the IRS on a tax return (tax depreciation) are calculated differently and serve different purposes. Straight-line spreads the expense evenly and looks predictable on financial statements. MACRS front-loads deductions to reduce taxable income in earlier years. Understanding the difference changes how a business looks on paper.
Your asset data stays in your browser
Asset values, acquisition dates, and depreciation schedules can be sensitive business information — particularly for closely held businesses, assets under negotiation, or pre-transaction planning. DrossTally is entirely client-side. Nothing you enter is stored, transmitted, or associated with any account or session.
Why depreciation matters beyond tax season
Depreciation is the mechanism by which an asset's cost is spread across the years it generates value. For tax purposes, faster depreciation means larger early deductions and less taxable income today — a genuine cash flow advantage. For financial reporting, the method chosen shapes how income and asset values appear on the balance sheet. The two goals are often in tension: MACRS front-loads deductions in ways that would misrepresent assets on a GAAP income statement, which is why companies maintain two separate depreciation records. DrossTally makes both visible in one place.
Straight-line vs. accelerated methods
Straight-line spreads the cost evenly: a $40,000 vehicle with a five-year life and $5,000 salvage value loses $7,000 per year, every year. Double declining balance front-loads deductions — 40% of the book value in year one, then switching to straight-line when that produces a larger deduction. Sum-of-years-digits applies a declining fraction each year. For assets that lose value quickly in their early years (vehicles, computers, equipment), accelerated methods better reflect economic reality. For assets with steady utility (some machinery, fixtures), straight-line is more appropriate.
MACRS: the IRS method for US tax returns
The Modified Accelerated Cost Recovery System is the depreciation method required for most US federal tax returns. It assigns assets to property classes (3, 5, 7, 10, 15, 20, 27.5, or 39 years) and applies IRS-published percentage tables that front-load deductions under the 200% or 150% declining balance method before switching to straight-line. The half-year convention assumes every asset was placed in service at mid-year; real property uses the mid-month convention. MACRS rates do not depend on salvage value — the basis is fully recovered regardless of what the asset is worth at the end.
Section 179 and bonus depreciation
Two elections let businesses deduct asset costs much faster than MACRS alone. Section 179 allows an immediate deduction of the full purchase price — up to $2,560,000 in 2026 — subject to a business income limitation and a phaseout that begins at $4,090,000 of assets placed in service. Bonus depreciation (restored to 100% by the One Big Beautiful Budget Act, signed July 4, 2025) applies to the remaining basis after any §179 election and requires no income limitation. Together, they make it possible to deduct a $150,000 equipment purchase entirely in the year of purchase — relevant for year-end tax planning and capital budgeting decisions.
Depreciation: how a big purchase becomes a yearly expense
When a business buys a $40,000 van, it doesn’t count as a $40,000 expense in that year’s taxes — at least not by default. Because the van will be used over multiple years, the cost is spread across those years through depreciation. Each year, a portion of the cost is counted as an expense, reducing taxable income. Understanding depreciation matters for two things: how much tax you owe this year, and what the asset is worth on your books at any given point in time.
Taking deductions evenly vs. front-loading them
Straight-line depreciation spreads the cost evenly: a $40,000 van over 5 years is $8,000 per year, every year. Accelerated methods front-load the deductions — you claim more in the early years and less later. This is attractive for taxes: money saved on taxes today is worth more than the same amount saved in five years. The tradeoff is that your books show a lower asset value sooner, which can matter when you’re presenting financial statements to a bank or investor. DrossTally calculates all the standard methods side by side so you can see the difference.
The official IRS depreciation system
For US federal taxes, there’s one official depreciation system: MACRS. It assigns every type of business asset to a category with a set lifespan — most vehicles are 5 years, most equipment is 5–7 years, commercial real estate is 39 years. The IRS publishes tables that tell you exactly what percentage of the asset’s cost to deduct each year. MACRS front-loads deductions, which benefits businesses. DrossTally looks up the right table for your asset type and calculates the full schedule.
The rules that let you deduct an asset’s full cost in year one
Two IRS provisions let businesses take much larger deductions in the year an asset is purchased. Section 179 lets you deduct the full purchase price of qualifying equipment and vehicles up to about $2.5 million in 2026. Bonus depreciation (restored to 100% in mid-2025) applies to anything remaining after a §179 election. In practice, a business that buys $150,000 of equipment can often deduct the entire cost in the year of purchase, significantly reducing that year’s taxes. DrossTally models both elections and shows how much they save compared to standard MACRS.