The money you’re stuffing into your 401(k) and other retirement accounts has to be withdrawn someday. If you’re not strategic about how you save, you could face unnecessarily high tax bills and inflated Medicare premiums in retirement — plus, you could be saddling your heirs with higher taxes. “You do not want to be in the position as some clients are that all of their funds are inside of a tax-deferred account,” says Pam Ladd, senior manager of personal financial planning at the Association of International Certified Professional Accountants.