The Numbers · Article

The math: what a §453 structured sale actually does to a $4M deal.

No hand-waving. The same $4M sale run two ways (straight cash sale versus a Structured Installment Sale) using real 2026 California + federal brackets. This is the page to send the seller who thinks in spreadsheets, or the CPA on the call.

The setup

A $4,000,000 sale with a $600,000 basis.

Seller bought a commercial property years ago for $600K. It's now worth $4M. The taxable gain is $3,400,000. Assume a high-income California seller: 20% federal cap gains + 3.8% NIIT + 13.3% CA = roughly a 37% blended rate on the gain if it all lands in one year. (Depreciation recapture at 25% would make the cash-sale side worse; we keep it simple here.)

Option A: Straight cash sale (all gain in one year)

  • Gain recognized in Year 1: $3,400,000
  • Blended tax at ~37%: −$1,258,000
  • After-tax proceeds: ~$2,742,000 (plus the $600K basis returned = ~$3.34M net of the $4M)

Option B: Structured Installment Sale (gain spread over 10 years)

  • Gain recognized: ~$340,000 per year instead of $3.4M at once
  • Each year's slice is taxed in lower brackets (much of it at 15% federal instead of 20% + full NIIT), and CA is applied to a far smaller annual figure
  • Effective blended rate typically drops 8 to 11 points (call it ~27% instead of ~37%)
  • Tax on the gain: roughly −$920,000 spread over the schedule
  • Tax saved vs. the cash sale: ~$300,000 to $340,000 (plus the unpaid balance keeps earning inside the contract instead of leaving as an IRS check on day one)
Why the rate drops
Before you read further

What is the tax bill on your sale going to be?

Send me the sale price and rough basis. Within one business day I'll email you the actual number and the Seller's Guide to §453. If it doesn't fit your deal, I'll tell you that plainly.

Hans Goldstein, EA
Admitted to practice before the IRS

No retainer · no obligation. Hans Goldstein, a licensed insurance agent (CA Insurance License #4273294), will contact you and may discuss insurance products, including annuities.

Bracket arbitrage + time value.

Two things are working at once. First, bracket arbitrage: a $3.4M spike shoves the entire gain into the top capital-gains bracket and triggers full NIIT; slicing it into ~$340K annual pieces keeps most of each year in lower bands. Second, time value: the tax you don't pay in Year 1 stays invested and compounding inside a fixed-rate contract, so a dollar of deferred tax is worth less than a dollar paid today.

The seller can also tune the schedule (front-load income, back-load it into retirement years when other income and their bracket are lower, or match it to a spouse's retirement). That flexibility is where the biggest savings often hide.

The one-line version

Same $4M. Same buyer. ~$300K+ more stays with the seller.

That ~$300K swing is frequently larger than the entire bid-ask gap that was killing the deal, which is exactly why this closes stalled sales.

Illustrative only, not tax advice. Actual results depend on the seller's basis, income, filing status, recapture, and the schedule chosen; every case is run on the seller's real numbers and reviewed with their CPA. Prefer the human side of this? Read why sellers freeze at the closing table.

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