Preparation is compliance. It reports what already happened. Planning is strategy. It changes what happens next. Preparation is a form you file. Planning is a relationship that runs all year.
Before the year ends. Ideally before the year even starts. Waiting until April is too late for almost every meaningful lever.
Usually, yes. Most first-year engagements save more than they cost. But the biggest returns come from years two and beyond, when the strategies compound.
For advisory to actually work, planning and preparation need to be the same team. Most FM engagements include tax prep for that reason.
Almost certainly. The 20% deduction for business owners is now permanent, real estate write-offs got better, and the state tax workaround still matters. If your CPA hasn't walked you through what changed, ask why.