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1 Alex Mengden, Savings and Investment: The Tax Treatment of Stock and Retirement Accounts in OECD and EU Countries 1 (2025)

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       TAX FOUNDATION




Savings and Investment:

The Tax Treatment of Stock and Retirement

Accounts in OECD and EU Countries




Alex Mengden    Global Policy Analyst

Sept. 2025



Key Findings

*   On average, in the Organisation for Co-operation and Development (OECD) and European Union, long-
   term capital gains from the sale of shares are taxed at a top rate of 18.19 percent, and dividends are
   taxed at a top rate of 22.87 percent.
 *  Investment income is usually taxed twice, first at the corporate level and then again at the shareholder
    level (on dividends and capital gains), producing an average integrated tax rate on distributed corpo-
    rate income of 40.86 percent for dividends and 37.37 percent for capital gains in OECD and EU coun-
    tries.
 * The portion of after-tax earnings that workers set aside for savings and future consumption is often
   taxed twice, creating a bias against saving. Ideally, workers should only be taxed on their income once,
   either when earned or when withdrawn for spending, to avoid compounding disincentives to both labor
   earnings and savings.
 * To encourage long-term retirement saving, countries commonly provide tax preferences for private
    retirement accounts. These usually provide a tax exemption for the initial principal investment amount
    and/or for the investment returns.
 * Savings accounts that exempt contributions and returns on investment while deferring taxation until
   withdrawal allow policymakers to widen the eligibility to savings vehicles that may include hybrid in-
   come  streams, such as start-ups and actively managed portfolios, diversifying household savings and
   removing tax penalties on those investments.
 * Tax-preferred private retirement accounts often have complex rules and limitations. Universal savings
   accounts could be a simpler alternative-or addition-to many countries' current systems of private
   retirement savings accounts.





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