Retirement PB-RET-TAX-01

Why Roth Contributions Stop Making Sense as Income Rises

The contribution decision most professionals make once at enrollment — and never revisit as the math changes around them.

Series
The Plain Brief
Read Time
~45 min
Audio
~14 min
Formats
PDF · Deck · Audio · Workbook
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The Roth decision was made at a different income level.

Most professionals choose Roth or Traditional at enrollment, when income is lower and the tax rate differential looks favorable. Then income grows. The marginal rate rises. And the Roth contribution keeps happening automatically — unrevisited, unjustified by the current math.

This brief explains when the calculus changes — and what the realistic options are when it does.

What this brief covers.

  • The specific income thresholds where Roth contributions stop making mathematical sense
  • Why the tax rate comparison at contribution versus withdrawal is the only number that matters
  • The backdoor Roth — what it is, when it applies, and when it creates more complexity than it's worth
  • A real example: a project manager at 32% marginal rate still contributing Roth
  • Five realistic approaches when the math no longer supports the original choice
  • What to ask a financial planner before changing contribution type

A real professional. Real numbers.

Every Plain Brief is built around a specific person in a specific situation — not a hypothetical.

The Example
Sarah — Project Manager, $185K + $40K bonus, 32% marginal rate

Sarah had been contributing to Roth since enrollment at $72,000. Eight years and three promotions later, her marginal federal rate was 32%. The math had flipped — but the contribution type had not.

Five formats. One purchase.

PDF Brief
The complete text — ~45 min. Introduction, myth vs. reality, five-option framework, real example, action checklist, stop line.
Visual Deck
12-slide summary in PowerPoint. Designed for quick review or reference alongside the PDF.
Audio Brief
Full narration — ~14 min. Same content as the PDF, delivered as hosted audio accessible anywhere.
Decision Workbook
Fillable PDF to apply the framework to your specific situation.
Advisor Questions
The most important questions to bring to a professional — with what a good answer sounds like.
Delivered instantly
All five formats arrive by email immediately after purchase. No account required.

The Plain Brief is educational content only. It does not constitute personalized financial, legal, or professional advice. The Plain Brief does not sell financial products, earn commissions, or promote strategies. When a situation requires professional guidance, the brief says so explicitly.

$27 one-time

Everything you need to understand and act on this decision.

  • Complete brief — PDF, deck, and audio
  • Decision workbook to apply the framework
  • Questions to bring to a professional
  • Instant delivery — no account required
Get This Brief — $27

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