Tax projection timeline.

Enter an annual revenue, a net margin and an effective tax rate, and the calculator estimates a projected liability: revenue times margin times rate. That number does not move when you change the planning month. What moves is the savings curve behind it. Most of the strategies that reduce a tax bill (elections, entity changes, retirement contributions, equipment purchases timed against depreciation rules) have deadlines. The later in the year you start engaging with them, the fewer are still open, and the smaller the realistic savings get. The chart plots that decay across the twelve months and marks where your selected month falls, then applies it to your projected liability to show a net figure and a dollar amount you keep.

This version uses three sliders and one curve. A real projection replaces all of it with your actual filed and year-to-date returns, real depreciation schedules including bonus depreciation and Section 179 elections, your actual entity structure, and your state's specific tax code, since state treatment of the same strategy can vary widely. From there we identify which strategies you still qualify for given your timeline, model each one against your numbers, and sequence them before the deadlines that apply to you close.