APH Calculator

Think of it like a bank averaging your last three years of income to decide on a loan. The bank wants a picture of your normal earning capacity — not a single year.

Your Actual Production History is the same idea for crop insurance. Your agent averages your last 4 to 10 years of yields on each insured crop. That average — your APH — sets the foundation for everything else: your coverage guarantee, your premium, and your potential indemnity payment. A higher APH means bigger protection and a bigger premium.

The calculation has rules about which years count and what happens when a year is missing or catastrophically low. Those rules are where producers sometimes end up with a lower APH than their operation actually supports — not because the system is hidden, but because the options are easy to miss.

T-yield (transitional): If you don’t have enough history on a crop — say you just started planting it, or the field came out of CRP — RMA uses a county transitional yield to fill the gap. It’s a safety net that lets new producers get coverage.

Plug yields: If a single year’s yield was unusually low (below 60% of your T-yield), you can substitute 60% of T-yield for that year. Keeps a single disaster year from pulling the long-term average down too hard.

Yield exclusion (YE): If a county-declared disaster year is in your history, you may qualify to drop it entirely from the average. You can apply YE to up to 4 of the last 10 years. Done right, it can raise an APH by 10 to 20 percent in areas hit hard by weather. Worth asking your agent about each year.