The short answer: The main tax benefits of buying a business all come from the stepped-up basis you get in an asset purchase. You then recover that basis as deductions, goodwill and intangibles over 15 years (Section 197), equipment up to 100% in year one (bonus depreciation / Section 179), buildings faster via cost segregation, and acquisition-loan interest as a business expense. A straight stock purchase gives you almost none of this. Educational only, confirm with a CPA.
It starts with basis
"Basis" is just what the tax code says you paid, and it's the pool of money you're allowed to deduct over time. When you buy a business's assets, your basis resets to the price you paid (a step-up). When you buy its stock, you inherit the seller's old, usually much lower, basis. That single difference is where nearly every buyer tax benefit is born, which is why the asset-vs-stock decision matters so much.
In an asset deal, your purchase price isn't just a cost. It's a 15-year stream of deductions.
The five benefits, ranked by speed
| Benefit | What it covers | Recovery speed |
|---|---|---|
| Bonus depreciation | Equipment, machinery, fixtures | 100% in year 1 |
| Section 179 | Equipment (up to a cap) | 100% in year 1 |
| Cost segregation | Building components | 5 / 7 / 15 yrs (vs 39) |
| Section 197 | Goodwill, customer lists, non-competes | 15 yrs straight-line |
| Interest deduction | Acquisition loan interest | As paid, each year |
Sources: IRC §§ 168(k), 179, 197, 163; the One Big Beautiful Bill Act (OBBBA, July 2025) made 100% bonus depreciation permanent for qualified property acquired and placed in service after Jan 19, 2025. See IRS guidance on OBBBA bonus depreciation.
A worked example
You buy a $1,000,000 landscaping business as an asset sale. Your CPA allocates the price across asset classes on Form 8594. Here's how the first-year deductions can stack up (illustrative, your allocation and rates will differ):
| Asset class | Allocated price | Year-1 deduction |
|---|---|---|
| Equipment & vehicles (100% bonus) | $250,000 | $250,000 |
| Furniture & fixtures (100% bonus) | $50,000 | $50,000 |
| Goodwill & intangibles (Section 197, ÷15) | $650,000 | $43,333 |
| Inventory (deducted as sold) | $50,000 | |
| Total price / Year-1 deductions | $1,000,000 | ≈ $343,333 |
Add the interest on your acquisition loan and you can see how a first-year buyer often shows little or no taxable profit even while the business throws off strong cash flow. The deductions are real; the cash is real; the timing just favors you early.
Deductions don't equal free money
Fast write-offs lower this year's tax, but they also lower your future basis, so you'll have less to deduct later, and depreciation you took can be "recaptured" as ordinary income if you resell. Time your deductions with a CPA; don't just grab everything in year one.
Why a stock purchase usually forfeits all this
Buy the company's stock and you step into the seller's shoes at their old basis. No step-up means no fresh depreciation, no new goodwill to amortize, and you may inherit their hidden tax liabilities. The main way to get asset-sale benefits inside a stock deal is a 338(h)(10) election, which treats the stock sale as a deemed asset sale. When a straight stock deal is unavoidable, that election is how buyers claw the benefits back.
See how each deduction works up close
Goodwill, bonus depreciation, and cost seg each have their own guide.
Frequently asked questions
They flow from a stepped-up basis in an asset purchase: 15-year Section 197 goodwill amortization, up to 100% year-one expensing of equipment, accelerated building depreciation via cost segregation, and deductible acquisition-loan interest. Together they can shelter a large share of the acquired income early on.
Not all at once. In an asset purchase the price is spread across asset classes and recovered over time, equipment often fully in year one, real property over 39 years (or faster with cost seg), goodwill and intangibles over 15 years. You recover the whole price eventually, on different schedules.
Generally yes, interest on a loan used to buy a business (including an SBA 7(a) loan) is normally a deductible business expense. Very large businesses can hit a Section 163(j) limit, but most small-business buyers deduct acquisition interest in full. Confirm with a CPA.
Usually not. A straight stock purchase gives you the seller's carryover basis with no step-up, so no fresh depreciation or goodwill amortization. You get asset-sale-style benefits only if a 338(h)(10) or 336(e) election treats the stock sale as a deemed asset sale.
Keep reading
- Asset sale tax treatment, where the step-up comes from.
- Goodwill amortization (Section 197), the 15-year write-off.
- Bonus depreciation & cost segregation, the fast deductions.
- LLC vs. S-corp, how your buyer entity affects the tax.
- Asset vs. stock sale and valuation.
Sources
- Bonus depreciation made permanent at 100% (OBBBA, 2025), IRS.gov.
- Section 197 15-year amortization of goodwill and intangibles, IRS Rev. Rul. 2004-49; IRC § 197.
- Section 179 first-year expensing ($2.56M / $4.09M phase-out for 2026), IRS Pub. 946.
- Purchase price allocation across asset classes, IRS Form 8594.
