Capital gains tax architecture is the discipline of sequencing recognition across accounts, entities, and years. It sits downstream of asset location, tax-loss harvesting, three-bucket policy, and system sensitivity—because the law taxes events, while your life taxes mistakes.
1. Recognition, Not Just Rates
Capital gains tax architecture is the engineering of when gain becomes taxable: holding periods, lot identification, character (short vs. long), and how ordinary income, NIIT, and state rules stack on the same dollar. The headline federal bracket is one line in a multi-page story.
Pair timing decisions with asset location and tax-loss harvesting so recognition lands in the wrapper where law and policy can actually use it.
"The IRS does not tax your thesis; it taxes events you can document—or cannot."
2. Founder and Equity Edges
QSBS, AMT, ISO disqualifying dispositions, and early exercise windows are where spreadsheets meet regret. System sensitivity matters: a small change in holding clocks or ordinary income can flip the optimal exit month.
3. Installment, Charitable, and Sequence
Installment sales, charitable bunching, and gain deferral tools are not loopholes; they are scheduling levers. Each has second-order basis and rate effects—see second-order effects before you celebrate the first line of tax saved.
Spec ID, corporate action history, screenshots—reconcile custodian to internal ledger before you sell.
Short vs. long, collectibles if relevant, ordinary wedges from ISOs—map to brackets and NIIT.
Conformity, estimates, safe harbors—calendar cash for tax, not only for champagne.
List three ways this exit blows up; assign one mitigation each before you wire.
4. Compliance as Culture
Sloppy memos turn alpha into entropy: amended returns and marital stress. Version decisions like code: owner, date, assumption set.
5. Draw the Loop
Tax interacts with behavior. Sketch recognition feedback with causal loop diagrams so you see how selling funds lifestyle creep that balancing loops defend.
Build the lattice, not the legend.
Return to the Reading hub for essays, tools, and the rest of the 100-topic map.
See also in Strata Atlas: Holding Companies Using Shells to manage multi-s · Asset Location The structural difference between · The Infinite Banking Concept Using whole life in · Tax-Loss Harvesting A system for turning losses · Self-Directed IRAs Taking structural control of