Best practices for buying farm inputs
Lower your risk while maximizing your cash.
Are farm input prices better now or should you wait to make a purchase?
Answering that question presents quite a challenge. Historically, farms that prioritize purchasing inputs early, on average, lower total input costs. Deciding when to purchase inputs is right for your farm requires thinking strategically about your buying options. When we consider commodity prices, input purchases are sometimes better to make in the spring.
Understanding market conditions
Understanding market conditions is essential when buying farm inputs. Markets are influenced by a number of different factors, such as supply chains and commodity prices.
Declines in commodity prices often create pressure to lower input costs as concerns of eroding farm profits begin to rise. If demand is strong enough, it may make waiting to buy inputs a better option.
Long-term commodity projections lean towards lower or steady prices unless production estimates significantly change. A significant change is often brought on by global or domestic events. These events can include global trade, wars, or poor weather, such as drought.
When uncertainty exists in the markets, other options to assist decision-making should be explored. One such option is to compare differences between current and historical prices. For fertilizer purchases, a crop-to-fertilizer price ratio helps consider short-term profits compared to product use. The fertilizer nutrient price ($/lb.) is divided by the crop price. A higher price ratio indicates a more expensive fertilizer (see Figure 1 below).

In Figure 1, producers in 2021/2022 were better off if nitrogen purchases were made in the Fall versus the Spring (ratio of 0.13 versus 0.16). The opposite was true for 2024/2025 when purchases were better in Spring compared to Fall (ratio of 0.16 versus 0.14). With a ratio of 0.20, nitrogen is at its most expensive level in the past five years when compared to current corn prices. Similar high price ratios are also currently seen for phosphates and potassium fertilizers.
With such a high price ratio, producers may be tempted to wait until spring to make any fertilizer purchases. However, when considering uncertainty and availability of products, now may still be a good time to consider at least some fertilizer purchases. Purchasing a certain amount of inputs in the fall can provide several advantages, such as utilizing storage and ensuring some product is on hand. Some fall purchases, when balanced with spring purchases, can also keep overall prices paid lower. You may not buy all of your inputs at the lowest prices, but you also avoid buying them all at the highest prices. Consider what your cash flow might let you easily purchase in fall, in line with your crop plan.
Identifying needs and maximizing cash
Each year you develop a crop plan that identifies what you will grow. While crop plans are not a new concept for most farms, they are an important part of maximizing your use of available cash. Cash is often limited to working capital or loan funds. Since they are used for numerous purchases throughout the year, efficient use of these dollars is important.
- To find which options are best for your farm, start with your soil. Soil sampling is critically important to reducing fertilizer costs. You need to know what you’ve got to work with before considering any other decisions. Seed selection and pesticide use are also impacted by your soil and its overall health.
- Are there discounts available on key products? Early purchase or financing discounts are often available for seed and chemistry. Deadlines for each discount should be weighed carefully as you decide what to buy.
- What products are needed in higher amounts? More cash is spent on products needed in large quantities, regardless of when purchases are made. More purchases, with smaller quantities, are recommended to spread potential risk. But targeting large purchase products early maximizes your use of cash to secure them. Especially if purchases use on-farm storage and discounts.
- Are there tax implications to your purchases? Each year, fall purchases are used to offset income tax liabilities. As you plan purchases, remember to maintain flexibility to maximize tax savings this year and next. Don’t overspend this year to save on inputs only to pay more income taxes next year.
- When do you start to market your production? Maximizing your use of cash isn’t just about what you have available now. Locking in favorable prices on production reduces concerns of lower revenues against higher input costs. The key to marketing while purchasing is having a good grasp of your farm’s cost of production.
Prioritizing products to buy
Equally important as maximizing your use of cash is prioritizing products you’ll buy first. Your crop plans, capital investments you’ve made, and market conditions are all key components of this process.
- Do you have on-farm storage? Farms that invest in product storage need to use them! Physical possession offers security that input needs to be met. Storage facilities also can’t offer a return on your investment if they sit empty.
- Are alternative products available to meet your needs? Consider price differences between what you want to buy and what is available. Especially if alternatives allow you to continue using existing equipment and have minimal impact on application methods.
To help weigh product options, consider utilizing decision tools offered by MSU Extension. The Seed Selection Cost Comparison Decision Tool helps narrow down options that offer yield and profit potential. The Pesticide Cost Comparison Decision Tool for Field Crops helps consider different products and their costs as you plan your IPM strategies. The Fertilizer Cost Comparison Decision Tool helps identify how to meet your nutrient needs at the lowest cost possible.
Create an input purchasing plan
An input purchasing plan takes your crop plan and adapts it into an efficient buying strategy to obtain products at affordable costs. Borrowing from grain marketing concepts, input purchasing focuses on being intentional and proactive about buying decisions. Learn more about input purchasing plans.
MSU Extension Bulletin E-3508: Strategies for Purchasing Farm Inputs
Further information on these concepts can be found in MSU Extension Bulletin E-3508: Strategies for Purchasing Farm Inputs. The bulletin offers insight into strategic approaches to buying farm inputs and explores how to secure products at reasonable prices by creating an input purchasing plan.
Bulletin E-3508: Strategies for Purchasing Farm Inputs
This resource is offered through the MSU DEMaND Series, which helps the next generation of farm operators learn about financial and business management strategies.