Legal & OpsUpdated January 2026·9 min read

Asset purchase vs share purchase for startup acquisitions

The trade-offs between asset and share purchases for buying or selling a small startup — tax, liability, and speed of close.

Primary keyword

asset purchase vs share purchase

Search intent

Buyer or seller in LOI is choosing deal structure.

TL;DR

95% of sub-$1M deals close as asset purchases — cleaner liability, simpler close.
Share purchases preserve contracts and history but inherit every skeleton.
Tax treatment differs meaningfully by country. Get local advice before signing LOI.

Asset purchase, in plain English

The buyer forms a new entity and buys specific assets: code, brand, domain, customer list, contracts (assigned individually). The seller keeps the shell company and any historical liabilities. Standard for micro-deals.

Deal structures that survive the first bad month

The 2026 median on asset purchase vs share purchase is 80% cash at close, 10–15% seller note over 18–24 months at prime + 2.5%, and 5–10% in escrow for 3–6 months. Straight cash usually costs the buyer a 5–10% premium — worth it for speed on small deals but painful in a competitive process.

Earn-outs align incentives on paper and poison transitions in practice. Only use them tied to metrics the buyer cannot easily manipulate (existing-customer renewal, gross bookings, delivered volume). Keep any earn-out under 20% of price and under 18 months, or plan on litigation.

Diligence checklist that separates real buyers from tire-kickers

A serious buyer looking at asset purchase vs share purchase works off a written question tracker in six buckets — financial, commercial, technical, legal, team, and platform. If any bucket has two red flags, the deal usually re-trades or dies. Great sellers preempt this by publishing the answers before diligence starts.

Reconcile 24 months of P&L to bank statements line by line. Export Stripe/Paddle at raw-event level, not the dashboard summary. Have every contractor's IP assignment in a single PDF. Sit for a 60-minute recorded ‘objection interview' with a friendly buyer before you publish — it's the cheapest diligence rehearsal you'll ever run.

The first 90 days: preserve, audit, then improve

On asset purchase vs share purchase, the first 30 days after close should be about not breaking anything. Run the seller's cadence, ship no new features, change no vendors, send no ‘new owner' email the seller didn't co-sign. You paid for a working machine — don't take it apart on day two.

Days 31–60 are the audit: read 12 months of support tickets, sit on a sales call, watch a churn call, look at the actual bank-statement expense pattern. Days 61–90 are your first small change — one process improvement the previous owner had been meaning to make. That rhythm becomes your operating model.

FAQs

Which is more tax-efficient for the seller?

Usually share purchase in the UK (Business Asset Disposal Relief) and asset purchase in the US (Section 1202 exceptions aside). Check with a tax advisor.

What are the biggest mistakes founders make on asset purchase vs share purchase?

Anchoring on gross revenue instead of SDE, add-backs over 15% of net income, and treating the data room as an afterthought.

What's a realistic timeline for asset purchase vs share purchase in 2026?

Two to three weeks of prep, two to four under LOI, one to two to close. Past 100 days signals the price or structure is wrong.

What's the single biggest post-close risk?

Losing a top-3 customer or channel in the first 60 days. Mitigate with a joint intro email and a 30–90 day paid transition.

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