EBITDA Add-Backs: How to Clean Up Your MSP’s Numbers Before a Sale

Last updated: October 7, 2026
Written by Rhett Collver, Managing Partner, C4 Solutions

At a 6x multiple, $100,000 of accepted add-backs adds $600,000 to your price. Lose that $100,000 in a buyer’s review and the price drops by the same $600,000. Same math. Opposite direction.

I built and sold an MSP before I moved into investment banking. From both chairs, the add-back schedule is where a buyer decides whether to trust the rest of your numbers. A clean, boring schedule with receipts gets waved through. An aggressive one gets every line questioned, including the perfectly good ones that would have sailed through on their own if they hadn’t been sitting next to three that couldn’t.

Buyers and lenders have reasons to be skeptical. In S&P Global research on large debt-financed deals, add-backs made up 29% of adjusted EBITDA on average, and only 8% of companies beat their projected EBITDA in the first year after closing. Your MSP isn’t a giant buyout. The people reviewing it have read those numbers anyway.

What Are EBITDA Add-Backs?

EBITDA add-backs are adjustments that add expenses back to reported earnings because a new owner won’t have them. Common examples are above-market owner pay, personal expenses run through the business, and true one-time costs. What’s left is adjusted, or normalized, EBITDA, the number buyers multiply to set a price.

Smaller deals sometimes use seller’s discretionary earnings, or SDE, instead. SDE adds back all of the owner’s pay, not just the part above market, because the buyer is usually an individual who plans to do the owner’s job. Private equity and strategic buyers think in adjusted EBITDA, since they’ll hire someone to run the place.

Those two multiples come from very different markets. BizBuySell’s second-quarter 2026 report covered 2,117 small business sales with a median price of $349,250. GF Data’s 2025 numbers track much larger private equity deals. Don’t compare a 2.7 to a 7.2 and assume you’ve been shortchanged. Compare the right earnings figure to the right buyer.

What Is Each Add-Back Worth?

Its dollar amount times your multiple. Simple. That’s why buyers fight over add-backs harder than nearly any other line in diligence, and why sellers should pick their battles.

A $25,000 add-back you can’t document is worth $125,000 to $175,000 on paper. In a negotiation it’s worth less than nothing, because the buyer now doubts your other numbers.

Which Add-Backs Do Buyers Accept?

The ones a stranger could verify from your records. Owner pay above a market replacement, personal expenses with receipts, one-time costs with a clear end date, and rent adjusted to market all tend to survive.

• Owner pay above market. Say you pay yourself $320,000 and a capable general manager would run about $175,000 in salary. The gap, less the payroll taxes and benefits a real hire would bring, is a fair add-back. For a benchmark, the BLS put the median pay for computer and information systems managers at $179,510 in computer systems design firms as of May 2025.
• Personal expenses. The family SUV, the phone plans for relatives who don’t work there, the conference in Maui that was really a vacation.
• Costs that truly ended. A lawsuit settlement. A one-time office move after a lease ran out and the whole team had to relocate across town. Legal and accounting fees for this sale.
• Above-market rent paid to yourself. If you own the building and charge the company $9,000 a month for space that rents for $6,500, the $2,500 difference comes back. Charge less than market and it goes the other way.
• A service line you shut down, as long as you also remove the revenue it brought in.

Family on payroll? Gray area. If your brother-in-law draws $70,000 and does nothing, add it back. If he actually runs dispatch, the buyer will need to replace him on day one, and the add-back shrinks to whatever you paid him above the going rate for a dispatcher in your market.

Which Add-Backs Get Thrown Out?

Anything that looks one-time but keeps happening. Buyers test add-backs the way the SEC tests public companies, and a cost that recurs at irregular intervals is still a recurring cost.

That standard is written down. Under the SEC’s non-GAAP guidance, a measure that strips out the normal, recurring cash costs of running the business may mislead investors, and an expense counts as recurring even if it only shows up now and then. Your buyer isn’t the SEC. Their accountants still borrow the logic.

For an MSP, the usual casualties look like this.

• A tool migration called one-time, in a business that has switched RMM, PSA, or security vendors three times in six years
• Recruiting fees and contractor overflow. You’ll need both again.
• Certifications and vendor training, which any MSP has to keep paying for as long as it wants to keep its partner status with Microsoft, its distributors, and its security vendors.
• Bonuses called discretionary that somehow get paid every December
• Savings you plan to make next year. S&P’s research found that 26% of add-backs in large deals fall into synergies and projected cost savings, and those are exactly the ones lenders discount first.
• Lost revenue from a client who left. That’s not an expense, so it can’t be added back.

The MSP-Specific Items

Generic add-back guides miss these, and they’re where MSP sellers get surprised. Each one can move adjusted EBITDA, or the cash at closing, more than the owner-pay argument does.

Start with prepaid contracts. Annual agreements paid up front, banks of block hours, project deposits. On cash-basis books that money looks like revenue the day it lands. A buyer sees work you still owe. The SEC flags this exact move in its guidance, warning against adjustments that accelerate revenue recognized over time as though it was earned when customers were billed. Expect the buyer to restate it as deferred revenue and treat it in the working capital adjustment.

Cash basis hurts too. That same SEC answer calls out switching revenue or expenses from accrual to cash. Plenty of MSPs run QuickBooks on cash basis for years because it’s simpler at tax time. Fine for taxes. Not fine for a sale. Have your CPA restate the years under review on an accrual basis before any buyer opens them.

Then there’s licensing and hardware. Microsoft 365, backup storage, and firewalls bought for clients and resold run through revenue at gross on a lot of MSP books. Revenue looks bigger. Margin looks worse. A buyer will split recurring managed services from pass-through product and price each one separately, so do it first and show both.

Tool migrations deserve a careful split. If you paid for two RMM platforms during a three-month cutover, the overlap is a fair one-time add-back. The new platform’s cost isn’t. Neither is the migration labor if your techs did it during normal hours.

Projects and recurring revenue belong on separate lines too. A blended revenue figure invites the buyer to apply a recurring multiple to nothing and a project multiple to everything.

When the Adjustment Goes the Other Way

Negative add-backs reduce adjusted EBITDA. They show up when the business has been running on costs the owner absorbed personally, and a buyer will find every one.

An underpaid owner is the classic case. If you take $85,000 in salary and the rest as distributions while also handling service delivery, sales, and every client QBR, the buyer will subtract the cost of hiring for those seats. The IRS already expects market pay here. Its guidance for S corporation officers says distributions must be treated as wages to the extent they’re reasonable compensation for the work done, judged partly by what comparable businesses pay for similar services.

Others are quieter. A spouse who does the books for free. A related-party lease below market. Laptops and servers three years past their refresh date, which won’t hit EBITDA but will hit the buyer’s capital plan and their offer.

Owners hate this section. Better to find these yourself than to hear about them in a buyer’s QoE summary.

How Do You Document an Add-Back?

With an add-back schedule. That’s one line per adjustment, the amount for each year under review, the general ledger account it came from, the evidence behind it, and one sentence on why it won’t recur.

Tie every number back to the general ledger and to your filed tax returns, because the first thing a quality of earnings reviewer does is check whether the three of them agree. If the schedule says $42,300 and the GL says $41,875, explain the gap before a buyer asks. Small differences that go unexplained turn into big conversations.

Keep it short, too. 10 defensible add-backs beat 30 creative ones, because every creative line costs you credibility on the defensible ones sitting right next to it in the schedule the buyer’s accountants are reading.

Who Tests Your Numbers?

The buyer’s accountants, through a quality of earnings review. For SBA-financed deals of $3 million or more, the lender now has to order one too.

That SBA rule is brand new. Starting October 1, 2026, SBA lenders financing a purchase priced at $3 million or more must get a quality of earnings report, done for the lender by an independent professional who works for neither the buyer nor the seller. The reviewer rebuilds cash receipts and disbursements from your bank statements, ties them to your P&L and tax filings, and flags non-recurring items, owner pay that’s above or below market, and related-party transactions. In plain terms, every add-back on your schedule gets checked against the bank. Every one.

Should you pay for your own sell-side QoE first? Maybe not. GF Data looked at 360 deals and found sell-side QoE deals averaged 7.4x EBITDA against 7.0x for deals without one, but the lift showed up mainly above $50 million in enterprise value, and smaller deals tended not to see a boost. For a $3 million MSP, a CPA review of a clean add-back schedule may do the job for a fraction of the cost.

When to Start

Earlier than you think. Owners tend to make the call to sell roughly 18 months before they have to. That leaves very little runway for cleanup.

I’d sequence it like this.

• Two years or more out. Move to accrual books, stop running personal costs through the company, and set your own pay at a defensible level.
• 12 to 18 months out, start the add-back schedule and keep it current every quarter.
• Separate recurring, project, and pass-through revenue on the P&L.
• Six months out? Have a CPA review the schedule against the GL and the tax returns.

Owners who sell at the top of the range usually spent years making the business less risky to own. Clean add-backs are one piece. Documented processes, a client list without heavy concentration, and an owner who isn’t the whole operation are the rest, and our exit-ready MSP framework covers those. Revenue quality matters as much as cost, which is why we also wrote about marketing changes that can lift your exit multiple.

C4 Solutions is a growth and M&A advisory firm for MSPs and technology companies, based in Irvine, California. Our M&A team works with owners from the early cleanup through the transaction itself. C4 also runs a separate fractional CFO service, vCFO for MSPs and tech companies, focused on growth planning, transaction readiness, and exit value. If a sale is on your horizon, book time with our M&A team and bring last year’s P&L.

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