SCO Insurance Program and its use in Michigan

What is the Supplemental Coverage Option insurance plan?

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The Supplemental Coverage Option (SCO) is an area-based crop insurance plan that can be added on to an underlying individual crop insurance policy. Available since 2015, SCO offers additional protection from the coverage level of an underlying plan up to 86%. The federal government subsidizes 65% of the premium cost for SCO.

Eligible underlying individual plans include Yield Protection (YP), Revenue Protection (RP), or Revenue Protection with the Harvest Price Exclusion (RP-HPE). The coverage of SCO follows the coverage of the underlying plan. For example, if the underlying plan is Yield Protection, SCO covers yield loss. Similarly, if the underlying plan is Revenue Protection, it covers revenue loss.

Eligibility of SCO

There are two main eligibility criteria for SCO. First is that a farmer should be under one of the individual plans mentioned above: YP, RP or RP-HPE. Secondly, any crop on a farm that is under the Agricultural Risk Coverage (ARC) program is not eligible for SCO coverage. Therefore, farmers who are willing to elect SCO need to weigh between ARC and Price Loss Coverage (PLC) with SCO when they make decisions for their commodity programs.

How does SCO work?

SCO indemnities are determined by losses at the county level, whereas payments of YP, RP and RP-HPE are triggered based on individual farm-level losses. This difference in triggering criteria results in cases where SCO makes payments when the underlying plans do not, and vice versa.

Figure 1 below illustrates a case where a farmer enrolls in a 75% coverage individual plan, either YP, RP or RP-HPE, with SCO. Farm-level risks are protected up to 75% and the remaining farm-level risks are not covered even with SCO. SCO, however, provides protection from 75% to 86% of risks at the county level based on county revenue or yield.


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Figure 1. SCO with Individual 75% Coverage Plan. Modified graphic based on Paulson et al. (2020)


The SCO payment is limited by the difference between 86% and the farm-specific coverage level of the underlying policy. The examples provided in Table 1 and Table 2 offer a detailed illustration of cases with YP and RP at a 75% coverage level. Table 1 displays the payments from individual plans, while Table 2 illustrates the payments from SCO for each individual plan.

In the example in Table 1, the indemnities for YP and RP are $50/acre and $160/acre, respectively. The indemnity for RP is larger than the indemnity for YP in this case, because we assume the harvest price ($4.00) is lower than the projected price ($5.00) and YP does not provide protection for this price decrease.

Table 1. Example of SCO Payment: Underlying Individual Plan



Yield Protection

Revenue Protection

Projected Price ($/acre)


Harvest Price ($/acre)



Farm APH

160 bu.

Actual Farm Yield

110 bu.

Projected Farm Revenue

$800 (=$5.00 x 160 bu.)

Actual Farm Revenue

$440(=$4.00 x 110 bu.)

Individual Plan

Coverage level


Realized level

68.75% (=110/160)

55% (=440/800)

Maximum Protection

$600 (=$800 x 75%)

$600 (=$800 x 75%)

Insurance Payment

$50 (=$800 x 6.25%)

$160 (=$800 x 20%)

With SCO, as presented in Table 2, a farmer can obtain additional coverage based on the county-level outcome. In our example, the limit of SCO for both YP and RP is $88 ($800 x (86% - 75%)). SCO for YP provides additional protection of 6% to the projected farm revenue, totaling $48 ($800 x 6%), as the actual county-level yield is 80% (160 bu. / 200 bu.) of the expected county yield. For RP, the actual county-level revenue is $640 ($4.00 x 160 bu.), which is 64% of the total $1000 ($5.00 x 200 bu.) of the expected county-level revenue. The calculated indemnity of SCO for RP is $176 ($800 x (86% - 64%)). However, the actual SCO payment would be $88, as the calculated indemnity exceeds the SCO payment limit of $88. In total, YP with SCO would pay $98 ($50 + $48) and RP with SCO would pay $248 ($160 + $88).

Table 2. Example of SCO Payment: SCO Plan



Yield Protection

Revenue Protection


Expected County Yield

200 bu.

Actual County Yield

160 bu.

Expected County Revenue

$1000 (=$5.00 x 200 bu.)

Actual County Revenue

$640 (=$4.00 x 160 bu.)

SCO Plan

SCO Coverage by law


SCO Maximum Coverage

11% (=86% - 75%)

Calculated SCO Coverage

6% (=86% - 80%)

22% (=86% - 64%)

Maximum Protection

$88 (=$800 x 11%)

$88 (=$800 x 11%)

SCO Payment

$48 (=$800 x 6%)

$88 (=$800 x 11%)

Total Payment



SCO Use in Michigan

Figure 2 shows the trends on insured shares of SCO in Michigan. The insured share is defined as a proportion of insured acres with SCO or ECO over the total insured acres with YP, RP, and RP-HPE. The use of SCO remained below 1% since its introduction in 2015 through 2018. From 2019-2021, SCO use increased, reaching a high point of 11.7% in 2021, followed by a decline to 8.9% in 2022. In 2023, the share remained stable at 8.3%. The sudden surge in SCO use in 2019 was likely due to the late passage of the 2018 Farm Bill, which allowed acres enrolled in PLC to purchase SCO.

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Figure 2. SCO insured shares for corn and soybeans in Michigan, 2015-2023

Figure 3 illustrates the insured shares of SCO by counties in 2023. Across most counties, the insured shares of SCO remain below 10%. Notably, the southern part of the state shows a higher use of SCO compared to other parts of the state.


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Figure 3. SCO insured shares in Michigan by counties, 2023

SCO is a relatively new insurance option that is gaining some traction in Michigan. The high subsidy rates and the possibility of diversifying coverage with county-level protection rather than farm-level has made SCO an attractive choice for many growers. However, SCO is one option in a suite of choices that producers will need to make this season. As many commodity producers make the decision to choose between Agricultural Risk Coverage (ARC)  and Price Loss Coverage (PLC), it is important to keep in mind that SCO can only be added to PLC, as it too closely resembles ARC-County. For more information on the choices to make this season, see MSU Extension resources on the Farm Bill.

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