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Tax drag

Taxes change which return compounds — wrappers, location and realisation timing as first-class levers.

Tax drag is how income, dividends and capital-gains rules reduce the rate that compounds inside a taxable account versus a sheltered one.

Tax drag sits in the engines family of this atlas: mechanisms first, products second, hype never.

Use the calculator for scenarios, then return to the section pages when you want the vocabulary behind the curve.

FocusAfter-tax growth
ToolTax wrappers
LeverRealisation timing
TrapIgnore locality
AllyLong holding
ToneEducational

Profile

Time sensitivity
70
Rate sensitivity
65
Contribution leverage
50
Behaviour risk
40
Tax & fee drag
96
Horizon fit
78

Seven chapters

The idea

Tax drag is how income, dividends and capital-gains rules reduce the rate that compounds inside a taxable account versus a sheltered one.

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The math

Formulas, worked examples and rules of thumb for tax drag, with inflation and fees kept in view.

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Levers

What you can actually pull when thinking about tax drag: contributions, time, costs, behaviour and wrappers.

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History

A short history of ideas and institutions behind tax drag.

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Pitfalls

Common traps and myths around tax drag, with practical fixes.

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Practice

A practical sequence for applying tax drag without turning life into a spreadsheet cult.

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Today

Modern context for tax drag: rates regimes, apps, FIRE debates and longevity.

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Frequently asked questions

What is tax drag in one sentence?
Tax drag is how income, dividends and capital-gains rules reduce the rate that compounds inside a taxable account versus a sheltered one.
Is this financial advice?
No. Tool-Lifes pages are educational atlases. Decisions need your goals, constraints and, when appropriate, a licensed adviser.
Do I need a high return for compounding to matter?
Higher net rates help, but time and contributions often dominate — especially early. Costs and behaviour can erase a “good” rate.
How should I use the calculator?
Treat outputs as scenario sketches. Vary contribution, rate, fees and inflation to see which lever moves your goal date.
What about inflation?
Always ask whether a figure is nominal or real. A high nominal path can still lose purchasing power.
Are past returns a promise?
No. Illustrations use round teaching numbers. Markets, inflation and taxes change.
Where do fees show up?
In the net rate that compounds. Expense ratios, advice charges and spreads all reduce terminal wealth.
What page should I read next?
From foundations, continue to contributions-vs-rate or fee-drag; for behaviour, open consistency-habit or panic-selling.

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