Final answer:
Contributing to a retirement account is more advantageous if you expect to pay a higher income tax rate at your retirement.
Step-by-step explanation:
If you expect to pay a higher income tax rate at your retirement than now, it is more advantageous for you to contribute your money to a retirement account now. Retirement accounts such as Individual Retirement Accounts (IRAs) and 401(k) accounts have special tax advantages, where the money you contribute is not taxed until it is withdrawn during retirement. By contributing to a retirement account now, you can benefit from the tax advantages and potentially receive a higher return on your savings.