Understand your shared-service allocation

In this fictional Northstar Works example, an internal allocation assigns shared-service costs to organizational budgets. It is not an employee charge or a bill to a customer. The figures illustrate the calculation only; your organization’s approved policy and source data determine its actual drivers, scope, and review route.

Printed documents and folders on a desk

Driver and monthly example

Sample calculation: occupied desks are the allocation driver for a fictional monthly workspace-support pool.

Comparison: Allocation basis compared with Result for Team A
Details Allocation basis Result for Team A
Monthly shared-service pool $12,000 The pool being allocated
Total occupied desks in the sample 80 desks The denominator
Team A occupied desks 20 desks 20 ÷ 80 = 25% share
Team A sample allocation 25% of the pool $12,000 × 25% = $3,000

Check the line before raising a question

A changed amount is a reason to check the inputs, not by itself proof of an error.

Start with scope

Confirm the period and pool

Check which month the line covers and which shared-service cost pool the source identifies. Compare like periods before drawing conclusions.

  • Note the period shown on the allocation line.
  • Match the line to the named service or pool.
Check the basis

Check the driver and quantity

Use the driver definition and source quantity for that period. In the fictional example, the driver is occupied desks—not headcount or desk capacity.

  • Record the driver name and unit.
  • Compare the team quantity with the source used for that period.
Show the difference

Recalculate and isolate the mismatch

Apply the stated share to the stated pool. If a team’s share rises while the pool stays the same, a higher driver quantity may explain the change; identify which input differs before asking for a review.

  • For the sample, calculate 20 ÷ 80 × $12,000 = $3,000.
  • Write down the specific quantity, definition, period, or arithmetic that does not match.

Prepare a clear allocation question

Collect the references that let the responsible Finance and Procurement allocation owner investigate the specific line.

  1. 1

    Identify the line

    Record the service or cost-pool label, the allocation period, and the amount you are asking about.

  2. 2

    Check the stated basis

    Note the approved driver definition and unit, then compare your team’s quantity with the source used for that period.

  3. 3

    Check the arithmetic

    Recalculate the share and allocated amount using the stated pool and denominator. Keep the inputs with your calculation.

  4. 4

    Describe the exact mismatch

    State which period, source quantity, driver definition, or calculation differs and include the relevant reference.

  5. 5

    Ask the allocation owner to review it

    Use your organization’s established Finance and Procurement route for allocation questions. The owner can identify the appropriate next step; this guide does not set a response time or determine the outcome.