Volume tiers in ICP contracts: how headcount discounts are usually set

Global EOR and payroll platforms often ask us how volume discounts work in contracts with an in-country partner (ICP). There is no universal formula. There are common patterns, though. This FAQ covers the ones we see most and the points that cause disputes later.

What is a volume tier?  

A volume tier is a price band tied to the number of employees the platform places with the ICP in a country. As headcount rises, the fee per employee falls. The aim is to reward the platform for scale and to give the ICP predictable revenue.

How are tiers usually set?  

Most contracts follow the same logic.

• The ICP sets a base fee per employee per month for the lowest band.
• Each higher band has a lower fee per employee.
• Band edges are tied to round headcount numbers that both sides can track easily.
• The discount is steeper at the start and flatter later, because the ICP’s fixed costs are covered early.

The ICP’s cost structure drives this. Onboarding, payroll runs, statutory filings and support all have a fixed part and a variable part. The fixed part is spread across more people as the count grows. The variable part does not shrink much. So the discount has a floor, and a good partner will tell you where it is.

Marginal or whole-book pricing?  

This is the most important choice in the contract.

In marginal pricing, each band applies only to the employees inside it. The first block of employees is charged at the top rate. The next block is charged at the next rate, and so on. It is simple to audit and cheap for the ICP, so the discounts are usually smaller.

In whole-book pricing, once you cross a threshold, the lower rate applies to every employee. It is generous to the platform. ICPs usually offer it with a higher base fee or a longer commitment to offset the cost.

Ask which model is used before you compare quotes. Two offers with the same headline rates can differ a lot in what you pay.

What counts as headcount?  

Agree on the definition in writing. Common options:

• Active employees on payroll at month end.
• Average active employees during the month.
• Employees paid at any point in the month.

Edge cases matter. Leavers mid-month, employees on unpaid leave, and people in a notice period can all move a count over a threshold. Contractors or secondees, where the ICP supports them, may be counted differently or priced separately. State how each case is treated.

Which period decides the tier?  

There are three typical approaches.

• Monthly: the tier follows the current month’s headcount. Fair, but the rate can move back and forth.
• Rolling average: the tier follows an average over a set window. This smooths seasonal swings.
• Annual commitment: the platform commits to a volume and gets a fixed tier for the year, with a true-up at the end.

Platforms with steady growth tend to prefer rolling averages. Platforms with a pipeline they can forecast may prefer a commitment, since it locks in a lower rate from the start.

What happens if headcount drops?  

Discounts are easy to give and hard to take back. Contracts should say what happens when volume falls below a band. Typical answers: the rate steps up at the next review, the platform has a grace period, or a minimum monthly fee applies. A minimum fee protects the ICP but can hurt a platform entering a new country with few employees. Negotiate the grace period and the review dates early.

Per country or across the whole relationship?  

Some ICPs operate in several countries or have a single master agreement. Platforms then ask whether headcount can be pooled. Pooling helps the platform reach better tiers. ICPs often resist it when costs and local rules differ a lot by country. A middle path is a shared tier for the commercial relationship with country-specific base fees.

What else belongs in the tier schedule?  

• Which services the per-employee fee covers, and which are charged on top.
• How and when tier changes take effect.
• Who reports headcount, in what format, and how disputes are resolved.
• Audit rights over the headcount data.
• Currency and indexation of fees.

The reporting point deserves attention. Tiers only work if both sides see the same numbers. A shared data format and a monthly reconciliation remove most arguments before they start.

A practical way to approach the talk  

Bring your growth forecast, your expected mix of countries, and your preferred counting rule. Ask the ICP for the base fee, the band edges and the pricing model in a single table. Test the table against a low case and a high case for your headcount. If the result is not stable, adjust the bands before signing.

Partnership teams that want to see how headcount and service data can be exchanged with us, request the data-exchange specification.