The Hidden Economics of Credit Card Rewards

How My "Free" Trip to Tokyo Reveals a Deeper Economic Problem

Kunichiwa from Tokyo, where my family is enjoying an unforgettable week of delectable sushi, cooking classes, and Micro-Pig Cafes (yep, that’s a thing).

A trip that cost us almost nothing.

Thanks to credit card rewards points, we've covered 90% of our flights and hotels with points. Points we never had to pay tax on—despite them representing thousands in value. These points came from legitimate business expenses: conference fees, professional memberships, mailing costs. Each purchase was tax-deductible for my business while generating tax-free rewards. It's a financial double-dip that feels almost too good to be true, which got me wondering: in an economy where nothing is truly free, who's actually paying for my unagi don?

The answer lies in a wealth transfer system operating largely outside traditional tax structures. When I earn 2% back on $10,000 in business expenses, I'm receiving $200 in untaxed income while deducting the original $10,000 spend from my business taxes. Meanwhile, every merchant who accepted my cards paid 2-3% in processing fees to enable these transactions—essentially subsidizing my vacation without seeing a dime of benefit. This creates a peculiar economy where small businesses fund the travel habits of their customers with higher credit scores.

The system's regressive nature becomes clear when you consider who can actually maximize these benefits. Business owners and high earners with significant spending power capture the lion's share of rewards, while those who can't access premium cards or lack spending capacity or financial knowledge get minimal benefits. Yet everyone pays higher prices as merchants pass interchange fees to consumers. Credit card rewards represent around $15 billion in annual untaxed income—one of America's largest parallel economies—transferring wealth upward while shrinking the tax base and widening income gaps.

This creates a genuine economic dilemma. The system concentrates benefits among those who need them least while distributing costs broadly, contributing to inequality in ways that aren't immediately visible. Yet as individuals, we're operating within the system as it exists. If you're positioned to benefit from rewards—through business spending, strategic card selection, or optimizing category bonuses—doing your research can generate significant value.

Certainly, don’t waste the benefit you’re receiving by leaving the points on the table once you’ve earned them, or by accepting airlines’ invitations to donate your points. Since rewards points aren't taxable income, donating them provides no tax deduction whatsoever. If you want to maximize your charitable impact, you're far better off using those points for personal benefit and instead donating appreciated stock positions, which allow you to avoid capital gains taxes while claiming the full deduction. At minimum, donate cash for the tax benefit rather than giving away valuable points that cost you tax-free income without any corresponding deduction.

The broader impacts of the credit card ecosystem are real and worth considering, but the system continues regardless of individual participation. Understanding how it works, and making informed decisions about your role in it, seems like the most practical approach while we navigate these economic realities.

Ms. Money is written by Marisa Rothstein, JD, CFP(t), AEP, and Lead Financial Advisor at Siena Private Wealth, A Member of Advisory Services Network, LLC.

Nothing contained in this article should be construed as investment, legal or tax advice. Consult your tax or legal advisor regarding your situation. To learn more about Siena Private Wealth, visit: www.sienaprivate.com. All information contained herein is derived from sources deemed to be reliable but cannot be guaranteed. All views/opinions expressed in this newsletter are solely those of the author and do not reflect the views/opinions held by Advisory Services Network, LLC.