Incentive slab design for dealers, retailers and sales teams
Every slab sheet is a set of bets about where partners will land. Set the thresholds by feel and most partners land in the first slab, the ambitious few land in the top one, and the scheme pays for what would have happened anyway. This guide sets slabs from data instead.
An incentive slab is a threshold in a trade or sales scheme at which the payout rate changes, so that a partner who reaches a higher slab earns a higher rate per unit, per rupee or per point of target. Well-designed slabs are set from the partner base's own distribution, usually with the first threshold near the 40th to 50th percentile of last period's purchases and the top threshold near the 85th to 90th, pay on a marginal basis to avoid cliff effects, use three to five slabs, and carry a cap per partner. Slabs set by round numbers instead of data are the commonest reason trade schemes overpay.
Anatomy of a slab
A slab has four parts: a metric (units, value, growth percentage, target achievement), a threshold (the number at which the slab starts), a rate (what is paid inside the slab) and a settlement basis (marginal or retroactive). Most scheme documents print the first three and leave the fourth ambiguous, which is where disputes and overpayment come from. State all four.
Setting thresholds from base data
Pull last period's purchases per partner and sort them. The percentiles tell you where the thresholds should sit. In programs Unotag runs, the following placement produces a scheme that stretches the middle without paying the top for standing still:
| Slab | Threshold placed at | Who it reaches | Purpose |
|---|---|---|---|
| 1 | 40th to 50th percentile of last period | Half the base can reach it with a small lift | Entry; makes the scheme feel real |
| 2 | 65th to 70th percentile | The middle tier stretching by 15 to 25 percent | Where most of the incremental volume comes from |
| 3 | 85th to 90th percentile | Strong partners with a genuine lift | Rewards the top without giving it away |
| 4 (optional) | Growth on own base of 15 to 20 percent, any size | Small partners growing fast | Stops the scheme being a large-dealer scheme |
Setting thresholds in absolute units means a dealer doing ₹40 lakh a month and one doing ₹4 lakh face the same ladder, and the small one never plays. The usual fix is to run slabs on growth over own base for the long tail and on absolute quantity for the head, or to segment the base into two or three ladders by size. The slab designer takes a purchase file and proposes thresholds at these percentiles for each segment.
Marginal vs retroactive payout
Retroactive (also called slab-wise on total) pays the achieved slab's rate on every unit. Marginal (also called incremental) pays each slab's rate only on the units inside it. Retroactive creates a cliff at each threshold: one extra unit can be worth thousands, which is motivating until it is gamed. Marginal is smoother and cheaper, and partners understand it once it is explained with an example. Two sample ladders show the difference:
| Ladder | Slab 1 | Slab 2 | Slab 3 | Payout at 120 units (retroactive) | Payout at 120 units (marginal) |
|---|---|---|---|---|---|
| Retailer, per unit | 30 to 59 units: ₹20 | 60 to 119: ₹30 | 120 and above: ₹40 | ₹4,800 | ₹600 + ₹1,800 + ₹40 = ₹2,440 |
| Dealer, percent of value at ₹5,000 a unit | ₹1.5 to 2.9 lakh: 1% | ₹3 to 5.9 lakh: 1.5% | ₹6 lakh and above: 2% | ₹12,000 on ₹6 lakh | ₹1,500 + ₹4,500 + ₹100 = ₹6,100 |
The retroactive column is roughly double the marginal column at the threshold. If you want the motivational cliff without the full cost, pay marginal and add a fixed bonus at each threshold, for example ₹1,000 on crossing slab 3. The bonus is visible and bounded; the retroactive uplift is neither.
How many slabs
Three to five. Two slabs is a target with a bonus, not a ladder. More than five and partners cannot remember where they are, the counter material becomes a spreadsheet, and the field team stops explaining it. Programs that run six or more slabs usually do so because different people added slabs at different times; consolidate.
Kinks, gaming and the last week of the period
Every threshold is a kink, and every kink attracts behaviour. Under retroactive payout, a partner at 115 units on the 27th will find five more units: from a neighbouring outlet, from a friendly distributor, or by billing and returning. Under marginal payout the five units are worth ₹200, and the partner does not bother. Watch three signals: purchases clustered just above thresholds, returns in the first week of the next period, and pairs of outlets whose combined purchases sit exactly on a slab. The fraud prevention guide covers detection rules; the sales incentive scheme design post covers contest and transparency mechanics that reduce the temptation.
Cap and floor
- Cap. A maximum payout per partner per period, usually set at the amount the 95th percentile partner would earn. It bounds the budget and removes the incentive to consolidate volume into one account.
- Floor. A minimum purchase or minimum activity below which nothing is paid, which keeps dormant accounts from earning on a single large order.
- Budget cap. A total scheme budget with a pro-rata rule if it is exceeded is legitimate if it is stated up front; discovering it after the period destroys trust.
Sales-team slabs vs channel slabs
Slabs for a sales team are usually on target achievement (80, 100, 120 percent) rather than absolute units, because territories differ. The design rules are the same, with two differences. First, a sales-team slab should start below 100 percent, because a scheme that pays nothing at 95 percent makes a rep at 90 stop trying in the last week. Second, pay on secondary or tertiary sales where you can see them, not on primary billing, or the rep will load the distributor. Channel slabs reward the partner's purchase; sales-team slabs reward the sale beyond it. The sales incentive programs page covers the field-force side.
Reviewing slabs after the first period
A slab ladder is a hypothesis about where partners will land, and the first period tests it. Pull the actual distribution of partners across slabs and compare it with the plan. If more than 60 percent landed in slab 1, the thresholds are too high for the base and the scheme paid only the partners who were going to buy anyway. If more than 20 percent reached the top slab, the top threshold was too low and the scheme is overpaying the head. Check clustering just above each threshold, which shows gaming, and the share of partners who were within 10 percent of a threshold but did not cross it, which shows where a small change in threshold would have moved volume. Adjust one threshold at a time and announce changes before the next period starts, never during it. Programs that change slabs mid-period lose more trust than they save in cost.
A checklist before the slab sheet goes to print
- Thresholds set from last period's percentiles, per segment, not round numbers.
- Settlement basis (marginal or retroactive) printed on the sheet.
- Three to five slabs; a growth-on-base slab for the long tail.
- Cap per partner and any budget cap stated up front.
- Cost modelled at the expected distribution across slabs, not at the top slab.
- Slab position visible to the partner during the period, on WhatsApp or the portal.
Key takeaways
- Set slab thresholds at the 40th to 50th, 65th to 70th and 85th to 90th percentiles of last period's purchases, per segment.
- Marginal payout costs roughly half of retroactive at the thresholds and removes most of the gaming; add a fixed bonus if you want a visible cliff.
- Three to five slabs, a cap per partner, and a growth-on-base slab so small partners can play.
- Sales-team slabs run on target achievement and should start below 100 percent, paid on secondary sales.
Frequently asked questions
What is an incentive slab?
An incentive slab is a threshold in a scheme at which the payout rate changes. Partners who reach a higher slab earn a higher rate per unit, per rupee of purchase or per point of target achieved. A scheme usually has three to five slabs.
How do you set incentive slab thresholds?
From the partner base's own data. Sort last period's purchases and place the first threshold near the 40th to 50th percentile, the middle near the 65th to 70th and the top near the 85th to 90th, separately for each size segment.
What is the difference between marginal and retroactive slab payout?
Retroactive pays the achieved slab's rate on all units; marginal pays each slab's rate only on the units inside it. Retroactive costs roughly double at the thresholds and creates cliffs that get gamed; marginal is smoother and cheaper.
How many slabs should an incentive scheme have?
Three to five. Two is a target with a bonus, and more than five cannot be remembered by partners or explained by the field team. Consolidate if slabs have accumulated over time.
Should an incentive slab have a cap?
Yes. A cap per partner per period, typically at what the 95th percentile partner would earn, bounds the budget and removes the incentive to consolidate volume into one account. State it on the scheme sheet.
How are sales team incentive slabs different from dealer slabs?
Sales-team slabs run on percentage of target rather than absolute units, should start below 100 percent so reps keep trying in the last week, and should be paid on secondary sales rather than primary billing.
Is there a tool to design incentive slabs?
Yes. The Unotag slab designer takes a purchase file, proposes thresholds at the recommended percentiles per segment, and models the scheme cost under marginal and retroactive settlement.