Retirement should simplify your life, but managing post-career income streams often adds unexpected tax complexity.

Once you retire, you lose the safety net of routine employer withholdings, making it easier to slip up under a new set of tax rules. For instance, a single misplaced IRA distribution or part-time coaching gig might inadvertently trigger steep

Medicare surcharges — or cause the IRS to

tax your Social Security benefits .

Here are five hidden tax traps that catch new retirees off guard, and how to adjust your withdrawal strategy to stay ahead of them.

Note: This article covers federal income taxes and municipal property taxes. State income tax provisions may differ.…