How to Sell a Business: The Full Process, Stage by Stage

Selling a company you have run for twenty years is nothing like selling a batch of inventory or a piece of equipment. The hard part for most owner-operators is that this is a once-in-a-lifetime transaction: you have no experience with it, and you cannot ask anyone around you, because before a deal closes, a leak is the single biggest risk you face. So most owners end up in the same place — the idea is already in their head, but they have no idea what step one is, how long the whole thing takes, or when the lawyers and accountants are supposed to show up.

This article does one thing: it breaks the process of selling a business into six stages, and tells you honestly how long each one takes, what you need to prepare, and where deals actually die. It does not cover valuation formulas, and it does not give legal or tax advice — that has to come from your own attorney and accountant, applied to your specific situation. What it gives you is a map of the process itself, so you always know where you are and what comes next.

Some context first. Taiwan is an economy built on small and medium enterprises: the 2025 SME White Paper published by Taiwan Ministry of Economic Affairs counts more than 1.715 million SMEs, over 98% of all enterprises, employing roughly 9.194 million people — close to eight out of every ten jobs in the country — with sales exceeding NT$31 trillion (MOEA release). A meaningful share of those company owners are standing at the same fork in the road: hand it to the next generation, or sell.

Are there buyers? Yes. PwC Taiwan reports in its 2025 Taiwan M&A White Paper that total Taiwan M&A deal value grew 81% in 2024 to US$16.22 billion across 121 transactions, with a record 46 outbound deals by domestic companies. The same study, based on 202 corporate survey responses, concluded that M&A remains a long-term strategy for Taiwanese firms even in an uncertain environment. In other words, buyers with money and intent are out there. The question is almost never whether someone wants to buy — it is whether you are ready to be bought.

HappyCXO Studio is an export marketing and website studio, not an M&A advisory firm. But in the work of helping manufacturers structure their outward-facing information and pull scattered data out of individual salespeople's inboxes, one pattern shows up again and again: the homework you do outside the process determines your speed inside it. Whether your records are complete, whether your capabilities are legible to an outsider, whether your data can actually be exported — all of that looks like a marketing problem until a buyer arrives, at which point it becomes price and timeline. For the wider topic map, start at the business succession hub.

How long does it take to sell a business? An honest range

Direct answer: for a typical SME, expect 9 to 18 months from serious start to completed closing. A well-prepared company with clean financials and simple ownership can compress that to 6 to 9 months. A company with messy records, blended personal and corporate accounts, or divided shareholders routinely takes more than two years.

Why is the range so wide? Because most of the variable is not the market — it is you. Every time a buyer asks for something and you deliver it complete and on time, the clock moves forward. Every time you have to dig through paper files, call a bookkeeper who left two years ago, or re-litigate a decision with a co-shareholder, the clock stops. In practice, the biggest single time sink in a deal is not negotiation. It is waiting for the seller to produce documents.

US market data offers a useful reference point, with a caveat. The IBBA and M&A Source publish a quarterly Market Pulse survey; the Q2 2025 edition drew on 326 business brokers and M&A advisors covering 272 closed transactions that quarter, and reported median multiples of about 2.3x for businesses under US$500K and 5.5x in the US$5M–$50M band. BizBuySell's Insight Report tracks small-business transaction counts and time on market on a similar quarterly cadence. These are US figures — deal structures, tax regimes and buyer ecosystems differ from Taiwan, so do not apply them directly. But they reveal a cross-market regularity worth internalizing: the larger and better-documented the business, the better the multiple and the faster the process.

Time to kill a common myth. Most owners assume finding a buyer is the hardest step, so they pour their energy into working their network. The opposite is closer to the truth. In the cases we see, the deals that die usually die between the letter of intent and closing — a buyer who was genuinely interested walks away during diligence because the seller could not produce what was asked for. Finding buyers is a marketing problem. Producing documents on demand is a management problem, and you cannot cram for it.

One more timing effect that never appears on any process diagram: your preparation window starts earlier than you think. If you want a buyer to see three clean years of financials, then the day you "decide to sell" should really fall two to three years before your target closing date. That sounds brutal, but it is also good news — even if you have not decided anything yet, cleaning up the books, papering the contracts and getting data out of people's heads costs you nothing, because those things make the business better to run either way.

Stage one: internal assessment and getting your head straight

Direct answer: before you hire a single advisor, answer three questions honestly — why are you selling, what will you do afterward, and are your family and co-shareholders actually aligned. Without agreement on these three, every later stage will get dragged back to the start.

"Why sell" sounds soft, but it sets the priority order for the entire transaction. An owner who wants to retire cares most about cash in hand and a clean break. An owner looking for resources to keep growing cares whether the buyer brings channels and orders. An owner forced into a sale by health or family circumstances cares about speed and certainty. Those three goals point toward completely different buyer types and deal structures — and you cannot maximize price, speed and certainty simultaneously. That is an iron law of transactions.

"What will you do afterward" is the question most often skipped and most likely to blow up a deal in the final week. Plenty of owners realize at the eleventh hour that they are in their mid-fifties with no identity outside the company, and start unconsciously stalling, adding conditions, and grinding the buyer down until they leave. Picturing your life three years after closing is not self-help. It is risk management.

The third question is shareholders and family. Ownership in Taiwanese SMEs often spans siblings, spouses, early technical shareholders, and sometimes an inheritance from a deceased parent that was never formally settled. How any of that should be handled is a question for your attorney and accountant — but what you can do today is get clear in your own mind about the shareholder register, actual holdings, and whether any shares are pledged or held by nominees. PwC Taiwan's family office practice exists precisely for this tangle of family and business issues, and CommonWealth Magazine's succession series documents a long run of real Taiwanese handover cases worth reading.

Selling is not the only option, and this is the stage to lay the alternatives side by side: hand over to the next generation, a management buyout, bringing in a strategic investor while retaining control, or carving out and selling only part of the business. The major accounting firms treat M&A as one legitimate succession solution rather than an admission of failure, and Deloitte's M&A insights hub consistently argues that deal purpose has to precede deal structure. Get that order wrong and even a great price will feel wrong afterward.

Second myth worth killing: "wait until the best revenue year, then sell." Buyers are not buying last year's numbers. They are buying whether those numbers survive your departure. A company where the top five customers would halve if the owner left will get discounted heavily or loaded with earn-out conditions, no matter how good this year looks. Conversely, a company with unremarkable margins but real systems, diversified customers and complete records tends to get cleaner terms. Durability is worth more than a peak on the P&L.

Stage two: organizing your records and building the team

Direct answer: this stage usually takes 1 to 3 months and has exactly two jobs — get your records into a form a buyer can read, and assemble your professional team. At minimum that team needs three roles: a financial or M&A advisor, an accountant, and an attorney, plus a single internal point of contact.

The advisor runs the process, builds and works the buyer list, and handles negotiation strategy. The accountant organizes financial records and assesses the tax dimension. The attorney handles transaction documents and legal risk. Do not blur those roles, and in particular, route every tax and legal question to your own accountant and attorney. Anything an advisor, an industry friend, or an article like this one tells you is general information, not advice on your situation.

Then there is the internal point of contact — the part that most often goes wrong. Selling requires enormous volumes of internal data, but you cannot let the whole company know. Most deals designate one deeply trusted person (often the finance manager or a family member) as the sole conduit, gathering data internally under a cover story like a bank financing review. Price that in: the person will be exhausted for six months, and will very likely guess the truth anyway.

Now the records. Everything a buyer will eventually demand, you can start assembling today:

• Financial: three years of statements and tax filings, monthly P&L, AR/AP aging, inventory detail including slow-moving stock, banking relationships and loan agreements
• Ownership: shareholder register, capital change history, articles of incorporation, board and shareholder meeting minutes, any pledges or trusts
• Contracts: top ten customer and supplier agreements, distribution and agency deals, plant and land leases, equipment leases, insurance
• People: employee roster with hire dates, compensation structure, labor and health insurance and pension contribution records, non-compete and confidentiality agreements for key staff
• Intangibles: trademarks and patents, ownership of tooling and jigs, product drawings and CAD files, domains and social accounts, ERP and customer databases
• Compliance: factory registration, environmental and safety permits, product certifications, any pending litigation or administrative penalties

The uncomfortable part of that list: for most Taiwanese SMEs the bottleneck is not the financials, it is the last three categories. Trademarks registered in the owner's personal name. Tooling ownership never documented. Product drawings scattered across three engineers' personal laptops. The customer list living in a senior salesperson's phone. None of that affects daily shipping, and all of it is a straight deduction at the negotiating table. The sentence we hear most often when helping clients with trade digitalization and inquiry systematization is "that all lives in so-and-so's head" — which is exactly what a buyer least wants to hear.

Your website starts mattering here too. Strategic buyers almost always look you up before making contact, and these days they ask an AI assistant first. A site that has not been touched in a decade, with vague product lines and no visible certifications, gets you filed under "old-school, hard to integrate" before a conversation happens. That is not vanity, it is valuation. The information architecture work in our website and SEO service is fundamentally about making a company's capabilities legible to outsiders — which works the same way on buyers as it does on customers. Related reading: should an SME rebuild its website for the AI era.

Stage three: approaching buyers and confidentiality

Direct answer: this stage typically runs 2 to 4 months. You start with an anonymous teaser that does not name the company, screen out poor fits, then sign an NDA with qualified buyers and release information in stages. Confidentiality is not a formality here — it is your only real protection.

Buyers come in roughly five types. Strategic buyers (competitors) usually pay best, because they understand your value and can model synergies — but they carry the highest risk, since they are also your rivals and the damage is permanent if they take your data and pass. Supply chain buyers upstream or downstream care about securing the chain. Financial buyers and private equity run the most professional and most demanding process, and typically require you to stay and hit targets. Management or employee buyouts offer the best confidentiality and the least disruption to staff, but often stall on financing. Overseas buyers add another layer of complexity: PwC's white paper specifically identifies post-deal integration and expatriate management as the main difficulties Taiwanese companies face in cross-border transactions.

Confidentiality works in layers. Layer one is the anonymous teaser: industry, revenue band, product type, geography and selling points only — no company name, no customer names, no photos (factory photos are far more identifiable than owners assume). Layer two is the NDA, signed before any identifying information moves. Layer three is staged disclosure — aggregate financials in round one, segment detail in round two, and customer lists, key contracts and technical documentation held back until diligence or even signing. Layer four is an audit trail in the data room: who looked at what, and when.

There is a real tradeoff here. In theory, more buyers means more competition and a better price. In practice, every additional buyer raises the odds of a leak. Industry circles are small, and once word spreads you face three pressures at once: employees start job hunting, customers start qualifying backup suppliers, and competitors start using "they are selling" as a sales line. For most SME deals the sensible range is a curated 5 to 15 targets, not a broadcast.

When do you tell employees and customers? There is no universal answer, and there are procedural requirements under labor law that your attorney has to assess case by case. The general pattern is that formal notification lands after signing, around closing, with a unified message and a Q&A script prepared in advance. Being cornered by a customer or a reporter and stammering does more damage than announcing early.

A second-order benefit: the process of approaching buyers is itself an extremely expensive company physical. Every question you cannot answer — why margins swing, why that customer dropped 30% last year, what your line utilization actually is — is homework for the next quarter. Even if this round does not close, you walk away with a diagnostic no one else would hand you for free. More on how HappyCXO Studio thinks about outward-facing clarity is on our about page.

Stage four: the letter of intent and preliminary terms

Direct answer: an LOI is where a buyer commits a price range and deal structure to paper before spending money on diligence, and it usually appears 1 to 2 months after buyer contact begins. Most of its terms are non-binding, but exclusivity and confidentiality clauses generally are binding — have your attorney read every line before you sign.

An LOI typically addresses price or price range, deal structure (share purchase versus asset purchase), payment structure (lump sum, installments, performance-based earn-outs, and escrow held by a third party), the length of the exclusivity period, the scope and timetable for diligence, any retention arrangement for the seller after closing, and conditions precedent. These are concepts, described here so you know what exists. How each one should be written in your specific deal, and what the tax and legal consequences are, has to be drafted by your attorney and accountant against your actual facts. Do not copy a template.

The LOI's most important function is psychological: it sets the anchor for every negotiation that follows. Between LOI and closing, price essentially only moves down, because diligence surfaces problems, never pleasant surprises. That means your readiness at LOI time determines your negotiating room later. If you still have financial or legal situations you yourself are unsure about, the rational move is to fix them before signing an LOI, not after.

Exclusivity is the other key term. A buyer asking for it is reasonable — they are about to spend real money on diligence. But an exclusivity period that runs too long without milestone conditions locks you up while the other side takes its time. The common balance is a defined period with automatic lapse if the buyer misses specific checkpoints. How to actually word that is, again, your attorney's job.

One widely misused statistic deserves correction. Harvard Business Review's The Big Idea: The New M&A Playbook notes that companies spend more than US$2 trillion on acquisitions every year and that the M&A failure rate runs between 70% and 90%. That number gets waved at sellers as a scare tactic, but it measures whether a deal created the expected value for the buyer — not the odds of a transaction falling apart. For you as a seller the real implication is different: buyers know exactly how hard integration is, which is why they push so hard on diligence findings and post-closing terms, and why your preparation is the tool that defuses their anxiety. For long-run global deal trends, Statista's M&A topic page is a continuously updated public entry point.

Stage five: due diligence, where most deals die

Direct answer: due diligence usually takes 2 to 4 months and is the stage where the buyer's accountants, lawyers and technical staff examine everything. It is also where the highest share of deals collapse — and rarely because something scandalous was found. Far more often the problem is that nothing could be found: you could not produce the proof, so the buyer assumed the worst case.

Diligence generally runs along several tracks: financial (revenue recognition, margin structure, receivable quality, inventory valuation, related-party transactions), tax, legal (ownership, contracts, litigation, compliance), operational (capacity, utilization, supply chain, customer concentration), human resources (insurance and pension contributions, overtime, key-person retention), and increasingly IT and cybersecurity. Larger deals add environmental and workplace-safety reviews.

Where do Taiwanese SMEs most often trip? Roughly in this order of frequency:

1. Personal and corporate accounts blended — owner expenses run through the company, so true profitability cannot be demonstrated
2. Undocumented related-party transactions — sales to the owner's other company with no contract and no arm's-length basis
3. Understated employment costs — insurance brackets, overtime or pension contributions that do not match reality, and the buyer prices in the back-payment risk
4. Missing contracts — a fifteen-year relationship with the biggest customer running entirely on purchase orders and trust
5. Unclear intangible ownership — trademarks in a personal name, tooling ownership never documented, product files with no version control
6. Customer concentration — the top three accounts are over 70% of revenue and all of them are held by the owner personally
7. Data that cannot be exported — no ERP, or an ERP whose real data actually lives in spreadsheets and a salesperson's private mailbox

Number seven is the one we see most closely. In diligence a buyer will ask for three years of orders, quotes and customer correspondence. If that history is spread across personal Gmail, chat threads and handwritten notebooks, you not only fail to deliver — you have proved something to the buyer: the core asset here is people, not systems. That shows up immediately in terms: longer retention lock-ups, a bigger share of deferred payment, tighter non-competes. Systematizing workflow and data — for example by connecting trade systems through APIs — buys you efficiency in normal times and leverage in a transaction.

The second-order effect of diligence is repricing. Finding a problem rarely ends a deal; far more often it changes the terms — a lower price, a larger holdback, a longer escrow, broader representations and warranties, or a specific risk converted into a price adjustment mechanism. So the thing to guard against is not "being found out." It is being found out about something you did not know yourself. Any issue you disclose up front with a remediation plan does dramatically less damage than the same issue unearthed by the buyer.

A necessary reminder: every tax and legal question that surfaces in diligence must be assessed and handled by your accountant and attorney. The categories listed here exist to help you take inventory and know who to ask. They are not advice on your situation.

Stage six: definitive agreement, closing and the transition

Direct answer: from the end of diligence to closing typically takes another 1 to 3 months, spent negotiating the definitive agreement, satisfying conditions precedent, and exchanging consideration for ownership. Signing and closing are often not the same day, with a waiting period in between while conditions get ticked off.

The definitive agreement — a share purchase agreement or asset purchase agreement — turns LOI concepts into specific terms: consideration and adjustment mechanics, the scope and survival period of representations and warranties, indemnity caps and thresholds, conditions precedent, non-compete and non-solicit provisions, and transitional service arrangements. This article only notes that these mechanisms exist and what problems they address. It does not supply contract language or negotiating positions — drafting is your attorney's domain, and every word carries real legal consequences in your specific deal.

Two mechanisms are worth knowing about in advance. First, working capital adjustment: inventory, receivables and payables on the closing date will never exactly match the baseline agreed at signing, so agreements typically include a post-closing true-up. That means you have to keep operating normally between signing and closing — stopping purchases or delaying payments to flatter the cash position simply gets reversed in the true-up. Second, escrow: a portion of the consideration sits with a third party for a period to backstop your representations. Do not be surprised that the money does not all arrive at once; that is standard.

Closing day itself is a very granular checklist: company seals and licenses, shareholder register changes, board reconstitution, bank account and online banking authority, admin rights on systems and cloud services, site access, the order in which customers and suppliers get told, and the timing and script of the all-hands meeting. Have your advisor build a line-by-line checklist for that day, because a single missed item can become an operational outage the next morning.

Then comes the part owners most consistently underestimate: the transition period. Most deals require the former owner to stay on, commonly six months to two years, and if there is an earn-out it is usually tied to that same window. The psychological gap is real: you are in the same office, but the decisions are no longer yours, and something you used to settle in a sentence now goes through a process. We have seen beautifully negotiated deals sour in transition purely through poor communication. Writing down who decides what, and genuinely reframing yourself as someone whose job is to make the buyer succeed, is the only strategy that works in that window.

Stage-by-stage timeline and deal-breaker risk table

Direct answer: laid flat, the six stages total 9 to 18 months. The two you can actually compress are stage two (organizing records) and stage five (diligence) — and the efficiency of both is almost entirely determined by how much homework you did before the process ever started.

The column to study is not duration — it is the one on the far right. More than half of the listed deal-breakers sit inside your own control. Shareholder alignment, clean books, contract completeness, exportable data: none of those require a buyer's permission, and none of them need to wait until you have decided to sell. They are work you can start today that pays off whether or not a transaction ever happens.

An underrated cost is the actual bill and the actual hours. Advisory fees, legal fees, accounting fees, data room tooling, possible tax planning costs, plus several hundred hours of your own and your internal contact's time — all of it becomes sunk cost if the deal collapses. That is why "tidy the house before opening the door" is not moralizing, it is arithmetic: start unprepared and you will most likely pay twice.

One last measurement trap: do not use "did I get an offer" as your readiness signal. Offers are easy to get, particularly the kind that comes in high and gets cut hard after diligence. The meaningful metric is whether you can deliver a complete response to a buyer request within one week. You can run that test on yourself today.

Important disclaimer

This article is a general description of process, written to help business owners understand the stages of a company sale and the risks common to each. It is not legal, tax, accounting or investment advice, and it cannot substitute for a professional assessment of your specific situation. Every transaction mechanism referenced — letters of intent, due diligence, share and asset purchase agreements, escrow, earn-outs — is described conceptually only, with no contract language and no judgment about applicability to your circumstances. For any actual deal structure, tax arrangement, contract term or compliance question, consult your own attorney and accountant. Every figure cited above carries a source link, and figures identified as US market data do not necessarily apply in Taiwan.

Selling a company is ultimately not a contest of negotiating skill. It is a contest of who started earlier at turning the business into something another person can actually take over. HappyCXO Studio does not do M&A advisory, but the work we do every day — turning scattered information into structured content, turning memory-dependent workflows into systems — happens to be exactly the road from "an extension of the owner" to "an organization that can be handed over." If you are working on how your company presents itself, or want to talk about getting knowledge and data out of individual heads, get in touch.