Do all ira contributions reduce taxable income?

Generally, contributions to a traditional IRA are immediately deducted from your taxable income. The investments in your account will be tax-free until you start making withdrawals after you turn 59 and a half years old, at which point you'll owe income taxes for distributions. IRAs are another way to save for retirement while also reducing your taxable income. Depending on your income, you may be able to deduct any IRA contribution on your tax return.

Like a 401 (k) or 403 (b), IRA money will increase with deferred taxes and you won't pay income tax until you withdraw it.