Corient Wealth Management's Guide to the Installment Sale of a Business

Does an installment sale really let you pay tax only as the money arrives?

No, an installment sale does not defer every dollar of tax until cash arrives, because the IRS taxes depreciation recapture immediately in the year of sale regardless of down payment size. Business owners often describe the rules as paying only when paid, but federal tax law splits each transfer into separate income categories.

Under Section 453, the gross profit percentage, calculated as total gain divided by contract price, determines the taxable capital portion of each principal payment received during the tax year. That ongoing calculation appears on IRS Form 6252, which gets filed in the year of sale and every subsequent tax year a principal installment arrives. If the enterprise is taxed as a partnership, any gain tied to unrealized receivables or inventory items under Section 751 generates ordinary income that accelerates into year 1.

Promissory notes also require interest payments separate from principal recovery. The IRS sets a minimum each month, the applicable federal rate, and the note's interest must meet or beat it. If you set the interest below the applicable federal rate, IRS rules recharacterize a portion of each principal installment into imputed ordinary interest, changing your tax calculations.

Before Corient Wealth Management suggests restructuring an owner carryout note, it models the exact ordinary income created on day one so you avoid paying tax without sufficient liquid cash.

How much tax is due each year on an installment sale of a business?

Annual tax liability depends on the gross profit percentage applied to each principal distribution, plus ordinary income from annual note interest and any accelerated recapture in year 1. A four-step calculation clarifies the schedule: subtract tax basis from sale price to find total gain, isolate depreciation recapture to tax it in the closing year, divide remaining gain by the transaction price to establish the gross profit percentage, and multiply that percentage by each annual principal payment.

Minh and Joanne are a hypothetical couple, ages 60 and 58, who co-own an 18-employee commercial printing company taxed as a partnership. They decide to sell the business to their long-time plant manager for $8,000,000 when Minh is age 60, structuring the transaction with a $2,000,000 down payment followed by 5 annual principal payments of $1,200,000. Their outside basis in the partnership is $1,000,000, producing $7,000,000 in total gain. Because their printing presses were fully depreciated over prior operating years, $1,000,000 represents Section 1245 recapture that must be recognized as ordinary income in year 1 without deferral.

Subtracting the $1,000,000 recapture leaves $6,000,000 of gain eligible for installment treatment. Dividing $6,000,000 by the $8,000,000 sale price establishes a gross profit ratio of 75%. In year 1, Minh and Joanne recognize $1,500,000 of capital gain (75% of the $2,000,000 down payment) alongside the $1,000,000 ordinary recapture. For Minh's ages 61 through 65, each $1,200,000 annual payment contains $900,000 of capital gain (75% of $1,200,000) and $300,000 of non-taxable basis recovery. The math balances: $1,000,000 recapture + $1,500,000 initial gain + (5 × $900,000) = $7,000,000 total gain recognized.

Timing triggers an additional expense: Medicare Part B premiums look back at modified adjusted gross income from 2 years earlier. The $900,000 gains Minh and Joanne report at Minh's ages 61 through 65 keep their joint income above the top Medicare IRMAA threshold of $750,000. Those years set Minh's premiums at ages 63 through 67. Minh's Part B premium jumps from $202.90 to $689.90 each month, adding $487 a month for 5 years ($29,220). Joanne, 58 at the sale, turns 65 when Minh is 67. Her first Medicare year is priced off the final payment year, adding $5,844. Their total Medicare increase comes to $35,064 at 2026 premium levels.

The pair accepted the 5-year installment terms because the manager could not obtain commercial bank funding for the total enterprise value. They budgeted the $35,064 healthcare surcharge as a cost of roughly 0.4% of the deal. Assuming a 37% federal rate on ordinary recapture and 20% on capital gains, their year-1 tax cost equals $370,000 plus $300,000, for $670,000 total. The $2,000,000 cash down payment comfortably handles this liability with $1,330,000 in liquidity remaining.

Evaluating the tax classification row by row reveals that the deferral benefit breaks down if you borrow against or pledge the note as collateral before collection.

What happens if the buyer stops paying in year 4?

When a buyer defaults on an installment note, you stop recognizing future deferred gain, but you face costly legal repossession and the risk of collecting pennies on the dollar. Deferring taxes essentially turns you into an unhedged private lender tied directly to the performance of a single company.

If the buyer defaults after making two annual payments, $3,600,000 in principal remains unpaid, and you may be forced to retake ownership of an enterprise that someone else operated for 3 years without proper equipment maintenance. Repossessing commercial assets triggers complex property adjustment rules under Section 1038, requiring immediate guidance from your CPA. Like any investment, a private promissory note can lose money, and past business results do not predict future loan repayments.

Legal protection requires formal security paperwork executed before closing. Your advisory team must mandate a comprehensive security agreement, a documented pledge of the stock or partnership interests held in escrow, a recorded UCC-1 financing statement covering commercial assets, an unconditional personal guarantee from the buyer, and a collateral assignment of a life insurance policy on the buyer. Accepting an installment note without a recorded UCC-1 filing and signed security agreement leaves the seller as an unsecured general creditor behind bank lenders if financial trouble strikes; fixing the error later requires the buyer's voluntary signature on corrective paperwork, which an owner facing insolvency will rarely sign.

Conversations at home often uncover hidden friction around these default terms. During family business sales, a non-active sibling usually raises the first concern: what happens to their share of the family inheritance if the operating child stops paying the note? Spell out the security terms and state in the estate plan who receives the unpaid note. Then every heir reads the same document, with the same collateral and the same remedy on default.

• Recorded UCC-1 financing statement covering equipment and receivables
• Stock or membership interest pledge agreement held in escrow
• Collateral assignment of term life insurance on the buyer

When doesn't the usual installment advice apply?

Standard installment treatment fails when selling depreciated machinery, executing sales to related family parties who quickly flip the company, or holding personal promissory notes exceeding statutory thresholds. Under Section 453(e), if a child or related entity buys your business on an installment note and resells it within 2 years, the IRS treats the second sale as an immediate disposition, accelerating your remaining deferred gain into that tax year.

In equipment-heavy manufacturing, printing, or transportation businesses, substantial gain frequently stems from Section 1245 depreciation recapture on machinery. Because recapture cannot be deferred under installment reporting, owners discover that 60% or more of their total tax liability falls into year 1 regardless of when the buyer pays cash. Furthermore, if you hold total installment obligations arising during the tax year with face values exceeding $5,000,000, Section 453A imposes an annual interest charge on the deferred tax liability itself. In Minh and Joanne's case, their $6,000,000 note requires CPA analysis to confirm whether the $5,000,000 threshold applies jointly or separately to each spouse's partnership share.

Execution timing also breaks down when sellers accept loan terms before evaluating the age-63 Medicare lookback window or execute purchase agreements in late December without reviewing bracket space in the subsequent tax year. The honest trade-off remains straightforward: if a purchaser can secure SBA or commercial bank financing, collecting cash in full eliminates credit risk, whereas carrying an installment note solely for tax deferral exposes you to long-term default.

What paperwork do you need before accepting a note?

You need verified records confirming your exact tax basis, historical depreciation schedules, and audited evidence demonstrating the buyer has sufficient operating cash flow to service the debt. Relying on rough estimates can trigger surprising tax bills when return preparation begins.

Three categories of documentation must be pulled from advisors and financial institutions before signing binding terms:

• Outside basis worksheets and Schedule K-1 capital account statements
• Fixed asset ledgers showing historical Section 179 and bonus depreciation
• Three years of the buyer's personal tax returns and financial statements

Can you switch out of the installment method after filing?

Yes, you can elect out of the installment method, but only if you do so by the due date (including extensions) of your federal tax return for the year of sale. Electing out under Section 453(d) requires reporting the entire realized gain in year 1, and revoking that choice later requires explicit written consent from the IRS.

Once that tax filing deadline passes without an election, your installment reporting method is locked in permanently for the duration of the note.

When should you bring a note offer to Corient Wealth Management?

Schedule a discussion with Corient Wealth Management the moment a potential successor proposes a seller-financed term sheet and before you sign binding legal agreements. Bring the draft promissory note terms, your prior 3 years of partnership K-1s, your company depreciation ledger, and the prospective buyer's verified financial statement.

Corient Wealth Management maps out your multi-year tax cost and checks which years land in a Medicare Part B lookback. You also get a written explanation of how the firm is compensated before any money moves.