Author: Katie Brockman, The Motley Fool

Nearly 80% of retirees face this issue in retirement.

Make a budget, not an assumption.

Even minor lifestyle tweaks can boost your nest egg.

Even though you’ve been paying taxes for years to receive your Social Security money, your monthly checks may still be subject to federal income taxes — which can throw off your retirement plan if you’re not accounting for it.

You may not even realize how much money you’re wasting.