How long you have to wait to safely do abdominoplasty after Smartlipo depends on what areas were treated with the Smartlipo. It appears from the other answers that the assumption was you had abdominal Smartlipo. If you did have abdominal Smartlipo, I would agree with the recommendation that you wait at least 3 months, or longer if the area hadn't returned to normal. It can be bad to re-operate on an area too soon. If you had Smartlipo on a different area, I recommend you wait until you know that area is healing without a complication. Depending on the area treated, that may be as little as two to four weeks. Your surgeon will have to help make that decision.
If you have recently had liposuction, I would suggest waiting at least a month before having a tummy tuck. However, it is unusual to have a tummy tuck after liposuction. If you need a tummy tuck, you likely needed it before the liposuction and should have had it all at the same time. If the liposuction was on a different part of your body, then could proceed with tummy tuck after just a few weeks. Good luck with your procedure.