From the day you engage an advisor to the day you close, most dental practice sales take six to twelve months, and a well-run process often beats that range. Where your sale lands is not luck. It is mostly decided by one variable you control almost completely: how quickly you can produce the information buyers and their teams need at each stage. This post walks the timeline month by month and shows you exactly where that variable bites.
That is the short answer. The rest of this post is the long one: what actually happens in each stretch of the timeline, why some months feel fast and some feel endless, and which parts of the clock you control. If you want the full picture of the sale beyond just timing, start with our complete guide to selling your dental practice and come back here for the month-by-month view.
One note on where this timeline comes from. For over four years I sat on the buy side, running deal execution at one of the country’s largest DSOs across more than 50 transactions. I watched hundreds of timelines from the buyer’s chair: the deals that moved, the deals that stalled, and the specific places where sellers lost months without knowing why. The timeline below is the pattern those deals followed, sharpened by what I now see running sale processes from the seller’s side.
The Clock That Starts Before You Do
Here is the part most owners never hear: the most important stretch of your sale timeline happens before you decide to sell.
Buyers price the practice your trailing twelve months of numbers describe, and their diligence teams look back two to three years. That means the practice being sold in March of next year is, in a real sense, the one you are running right now. Production trends, hygiene reactivation, fee updates, staffing stability: all of it is already being written into the record a future buyer will read.
This is why advisors keep repeating the eighteen-month line, and it is worth being precise about what it means. The process itself does not take eighteen months; from engagement to closing it is six to twelve, often less. The eighteen months is about the practice you will be selling. Start that early and you have runway to fix what can be fixed and let a full year of clean numbers accumulate. Start later and the process still runs just as fast, but you will be selling the practice as it is, not as it could have been.
That gap is where we see the most value lost. If you do not take the time to prepare your practice, you are leaving value on the table and settling for less than a maximized sale, and none of it shows up as a line item you can point to afterward. It is simply the difference between the number you got and the number you could have gotten. The sooner you start preparing, the more of that value you keep.
Months 1 to 2: Preparation
The formal process starts here, and this stage quietly determines how every later stage goes.
Preparation means getting the financial story straight before any buyer sees it: organizing the P&Ls, building and documenting the add-backs, normalizing owner compensation, and assembling the practice’s story into the materials buyers evaluate. It takes one to two months, and most of that range comes down to a single factor: how quickly you can get your advisor the information they need to properly vet and understand your practice. An owner who turns document requests around in days moves through this stage fast. An owner whose bookkeeper takes three weeks to produce a general ledger sits at the long end.
This is also the cheapest place on the entire timeline to be thorough. Every question your advisor answers now is a question the buyer’s team doesn’t ambush you with later, because buyers price confidence and disorganized materials read as risk.
Months 2 to 4: Going to Market
Qualified buyers are approached confidentially, sign NDAs before learning identifying details, review the materials, and begin asking questions. Done properly, your staff, your patients, and your competitors have no idea any of this is happening.
The pace here depends on the buyer pool for your specific practice. A multi-op practice in a growing metro will typically draw interest quickly, often within the first few weeks. A practice with a narrower natural buyer pool, whether because of size, location, or specialty, needs a longer and more deliberate outreach. This is also the stage where running a real process pays for itself. Multiple buyers at the table creates a competitive bidding process, and the benefit reaches across the whole deal: stronger price, better structure, cleaner terms. Buyers who know they are competing move faster and put their best numbers forward earlier, while a single buyer negotiating alone has every incentive to slow down.
Months 3 to 4: Offers and the Letter of Intent
Interested buyers submit offers, the strongest get negotiated against each other, and you sign a letter of intent with one of them. On the calendar this stage often looks quick, a few weeks of term sheets and phone calls, but it carries more leverage per day than any other stretch of the timeline.
This is also the stage where the process turns personal. Serious buyers want to meet you: visits to your practice, dinners, real conversations about what life after the sale looks like. Those meetings matter more than they appear to, because they are your best chance to judge fit and decide who you actually want to go with, not just who wrote the biggest number.
The reason this stage carries so much leverage: an LOI is mostly non-binding on price and terms, but binding on exclusivity. Once you sign, you typically stop talking to every other buyer, and your negotiating position changes completely. The moment before signing is your point of maximum leverage, and terms you do not negotiate into the LOI rarely improve afterward. Sellers who understand this spend an extra week here happily. Behind the buyer’s offer, meanwhile, an approval process you never see is already underway, and I have written separately about what the group approving your deal actually asks before the offer you are holding was ever sent.
The Final 90 Days: From LOI to Closing
Here is the number most owners never hear: once the letter of intent is signed, most groups close within about 90 days. Three workstreams run in parallel during that stretch, and two of them are the long poles.
The first long pole is the quality of earnings review, and it is worth understanding how it actually works. The buyer does not always run this in house; on most deals they hire an outside firm that conducts the report independently. That firm works directly with you to build a complete picture of the practice and the adjustments, then delivers its report to the buyer. Part of the job is verification, and part of it is a performance check: confirming the practice has kept producing since your numbers were first presented, and that you did not take your foot off the gas while the deal came together. I ran reviews like these for years on the buy side, deciding which proposed adjustments earned credit and which did not, and the pattern was remarkably consistent: sellers whose materials were built to buyer standards moved through in weeks, while sellers reconstructing answers under deadline pressure watched every reconstructed answer invite two new questions. The single biggest driver is the add-backs, and I have written a full breakdown of why buyers reject add-backs: the short version is that every claimed adjustment either survives this review with documentation or dies without it. This review is also where repricing happens. When it finds gaps between what was represented and what is real, the buyer comes back with a lower number, and by then your alternatives have moved on.
The second long pole is legal: the purchase agreement, assignment of the lease (landlord consent can take weeks on its own), your employment or transition agreement, and the closing statement that turns a headline price into actual proceeds. The unglamorous closing mechanics, working capital adjustments, accounts receivable treatment, and proration of expenses are where meaningful money moves at the very end. Read them, or retain people who do.
And the variable that governs whether your 90 days stays 90 days? The same one as always: how quickly you get the buyer’s team the information they need to complete their diligence. Document requests arrive in waves, and every day a request sits unanswered is a day added to your closing date. Prepared sellers coast through this stretch. Unprepared sellers live in it.
Then a wire hits, and the practice you built has a new owner. Most deals include a transition period where you keep practicing for a defined stretch, and that term was negotiated back at the LOI stage, which is one more reason those weeks in month three mattered.
What Makes a Sale Faster or Slower
Every practice sale I have watched land early or late came down to a short list of variables, most of them knowable before the process starts.
The accelerators: fast, complete responses to every information request (the number one lever, at every stage), financials prepared to buyer standards before going to market, a clear and consistent answer on post-close plans, a stable provider team, a transferable lease with term remaining, and a competitive process that keeps buyers moving. Get those right and a sale can land under the six-month mark.
The delays: books that need reconstruction, an add-back story that cannot be documented, a landlord who goes quiet, associates who hesitate to sign new employment agreements with the buyer (start those conversations early and thoughtfully), surprises that surface late in diligence, and the quiet killer, seller indecision. A seller who is still deciding whether they truly want to sell will find that every stage takes twice as long, because every document request and every negotiation point becomes a fresh occasion to reconsider.
Notice what is missing from both lists: the market. Owners often assume timing the market is the main lever. In practice, the state of your preparation moves your timeline and your outcome far more than the month you choose to start.
Common Timeline Questions
Can a dental practice sell in under six months? Yes, and well-run processes do it. The recipe is a responsive seller, materials prepared to buyer standards before going to market, and a competitive process that keeps buyers moving. What you cannot skip is the sequence itself; a “fast” sale that skips the market process usually just means one buyer negotiating unopposed.
How long from LOI to closing? Most groups close within about 90 days of a signed letter of intent. The quality of earnings review and legal documentation are the longest lead-time items, and both start immediately. The biggest variable you control is how quickly you answer the buyer’s information requests.
When should I tell my staff? A properly run process is strictly confidential and operates on a need-to-know basis from start to finish. Your staff learn when you and the buyer decide together, and the buyer will help coordinate that announcement, typically right before closing, with a plan for how it is communicated. Early disclosure is one of the most common self-inflicted wounds in practice sales: it risks departures during the exact months the buyer is evaluating team stability.
Does the time of year matter? Far less than preparation does. Deals sign and close in every month of the year. The one calendar effect worth knowing: closings tend to cluster ahead of year-end, so the professionals involved get busy in the fourth quarter, and a seller starting in October should expect less slack in everyone’s calendar.
What This Means If You Are Thinking About Selling
If a sale is even a possibility in the next two to three years, the timeline math points to one conclusion: the cheapest, highest-leverage work happens now, long before any buyer appears. Clean numbers, documented add-backs, a stable team, and a practice that runs without heroics from you. Every one of those shortens the clock and raises the number at the same time.
The natural first step is knowing where you stand today. That is what our free practice valuation is for: a confidential, buyer-grade read on your practice’s numbers, built the way an acquirer’s team would build it, so your eighteen months start from a real baseline instead of a guess.