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AgridianDairy KB

Milk check per cwt

Definition

Section titled “Definition”

The milk check is the buyer’s or co-op’s monthly settlement for the milk a farm shipped. Reading it per cwt (hundredweight, 100 lb of milk) makes checks comparable across months and farms.

A check usually has these parts:

  • Gross pay: in a component order, butterfat, protein and other solids lb times their prices, plus the PPD per cwt. In a skim/butterfat order, a uniform price per cwt adjusted for butterfat test.
  • Premiums: over-order, quality (SCC, bacteria), component, volume or market premiums. Some can be negative (“market adjustment”).
  • Deductions: hauling, marketing and co-op fees, the national dairy promotion checkoff, federal order marketing service fees, co-op capital retains (see patronage and equity), pool or balancing assessments, and third-party deductions such as lender or feed assignments.
  • Advance: most buyers pay a mid-month advance on the first half’s milk, and the final check settles the month net of the advance.

The mailbox price is the net amount the farm receives per cwt, after all premiums and deductions, divided by shipped cwt. USDA AMS publishes average mailbox prices by order and state. Those are area averages, not any one farm’s check.

Formula

Section titled “Formula”
gross pay = Σ (component lb × component price) + shipped cwt × PPD     (component order)
gross pay = shipped cwt × uniform price, adjusted for butterfat test   (skim/butterfat order)


net check   = gross pay + premiums − deductions
mailbox price ($/cwt) = net check (before advance is netted) / shipped cwt
shipped cwt = shipped lb / 100
\begin{aligned}
G &= \sum_{k} L_k P_k + \mathrm{cwt} \times \mathrm{PPD} \\
N &= G + \text{premiums} - \text{deductions} \\
P_{mailbox} &= \frac{N}{\mathrm{lb}_{shipped} / 100}
\end{aligned}

The advance is part of the month’s pay. Add it back, or work from the statement’s total for the month, before dividing.

How to pull it in DC305

Section titled “How to pull it in DC305”

DC305 does not hold prices or milk-check data. Shipped pounds, tests and pay come from the buyer’s statement and the bulk tank or pickup records (see bulk tank pickup data).

DC305 can help estimate a check from the herd’s own records:

  • Cow-level test-day milk (MILK) gives herd production. SUM reports the average and the count of cows, so lb/day at the last test is average MILK × the number of cows with milk.
  • If the herd imports DHI component tests, the fat % and protein % items (PCTF, PCTP, at the last test) let you estimate component lb.
SUM MILK FOR LACT>0 MILK>0              average test-day milk and cow count, lactating cows
SUM MILK PCTF PCTP FOR LACT>0 MILK>0    with fat % and protein %
LIST\T ID MILK FOR LACT>0 MILK>0        cow list with totals (\T)

SUM leaves zeroes out of averages by default; \Z includes them.

Test-day milk is not shipped milk. It excludes discarded milk (fresh, treated cows) and on-farm calf feeding, and it is a single day. Use shipped lb for any per-cwt figure.

Typical range

Section titled “Typical range”

Herd context: US federal order milk; values vary by order and month.

  • Mailbox price: roughly $15–$25/cwt in 2019–2025, tracking class prices. It usually sits about $0.50–$2/cwt above or below the statistical uniform price, depending on premiums and deductions.
  • Hauling: about $0.30–$1.50/cwt, more for small or remote farms.
  • Promotion checkoff: $0.15/cwt on milk produced in the US and marketed for commercial use, collected by the buyer (7 CFR 1150.152, as of November 2026). Up to $0.10 of it can go to a qualified state or regional program instead of the national board.
  • Co-op marketing fees and retains: from a few cents to around $0.50/cwt each, varying widely by co-op.

Common mistakes

Section titled “Common mistakes”
  • Dividing by the wrong pounds. Use the shipped lb on the statement, not DC305 test-day milk or the farm’s own tank readings.
  • Forgetting the advance. Dividing only the final check by the month’s cwt understates the mailbox price.
  • Comparing gross and net prices. One farm’s “price” may be before deductions and another’s after. State which one.
  • Mixing $/cwt and $/lb of components. Component prices are per lb of component, while the PPD and most deductions are per cwt of milk.
  • Treating retains as a cost. Capital retains are equity in the co-op. They reduce cash now but are not an expense like hauling.
  • Comparing checks across orders or months with different tests. A high-component herd’s check per cwt is higher because its milk is worth more, not because its price is better.
Section titled “Related”