A pain gain share splits the difference between a target and the final cost: if the job comes in under target both sides gain, and if it comes in over both sides pay. In NEC contracts this arrangement is the Contractor's share under Options C and D, and "pain/gain" is everyday shorthand rather than a term the contract itself uses.
The simple version is easy to state. What many people miss is how the pain side interacts with the Fee. This page illustrates both, with fictional figures, under NEC4 ECC. For the wider mechanism, see the guide to target cost and the Contractor's share, or go back to the main Options overview.
The illustration
A fictional depot refurbishment has a final target of £2,000,000, a single 50% share across every range and a fee percentage of 8%. Here are three outcomes.
| Gain | On target | Pain | |
|---|---|---|---|
| Final Defined Cost | £1,666,667 | £1,851,852 | £2,129,630 |
| Fee at 8% | £133,333 | £148,148 | £170,370 |
| Price for Work Done to Date | £1,800,000 | £2,000,000 | £2,300,000 |
| Difference from the target | £200,000 saving | £0 | £300,000 excess |
| Contractor's share (50%) | £100,000 received | £0 | £150,000 paid |
| Client pays in total | £1,900,000 | £2,000,000 | £2,150,000 |
| Contractor's margin over Defined Cost | £233,333 | £148,148 | £20,370 |
Figures are rounded to the nearest pound. "Margin" here means the Client's total payment less Defined Cost. It isn't a contract term, and a real Contractor's costs may differ from Defined Cost.
Three things the table shows
A saving benefits both sides, even with less Fee
In the gain column, the Fee falls by about £15,000 compared with the on-target case, but the share adds £100,000. So the Contractor still has a good reason to bring cost down, unlike under Option E. Option C vs Option E looks at that incentive directly.
The pain side comes out of the Fee first
In the pain column, the Contractor earned £170,370 of Fee, then paid £150,000 back through the share. It's left with £20,370 over Defined Cost. Its contribution to overheads and profit has almost gone.
There is a tipping point
On these figures, the Contractor's margin hits zero when the Price for Work Done to Date reaches about £2,347,826, roughly 117% of the target. Defined Cost is then about £2,173,913, the Fee is about £173,913, and the Contractor's share of the excess is also about £173,913. Beyond that, each extra pound of cost is a real loss for the Contractor.
Your own tipping point depends on the fee percentage and the shape of the share ranges, so it's worth working it out at tender. Commercial teams on both sides should know the number. A Contractor near it may start behaving very differently, and it pays to see that coming.
What pain/gain isn't
- It isn't a monthly payment. The Contractor is paid Defined Cost plus Fee as it goes. The share is assessed at Completion and again for the final amount due.
- It isn't a cap on the Client's cost. In the table, the Client paid £150,000 more than the target, and the excess would keep rising unless the ranges were set to stop it. See setting share ranges and percentages.
- It isn't protection from compensation events. A compensation event changes the target, so it doesn't count as pain to the Contractor if assessed properly. That's why accurate event records are so important.
- It isn't the place for Contractor errors. Some costs never reach the calculation because they are Disallowed Cost, which the Contractor carries alone.
Questions to ask before you sign
- At what cost does the Contractor's margin reach zero? Is that realistic for this job?
- How much is at risk for the Client beyond target? Is the budget ready for it?
- Has the target been tested, so both sides believe it's achievable?
- Will both sides be able to see cost and forecast share month by month?
- Does the Contractor's supply chain have any gain or pain of its own, or does it sit only with the main contract?
Related guides
- NEC Main Options: A to F Explained
- Setting Share Ranges and Percentages
- NEC Option G Term Contracts: What It Means
- PSC Main Options
- The Bill of Quantities Under NEC
- Target Cost and the Contractor's Share
See how this works in practice
Click through Contract Status with sample contracts: raise the notice, reply to it, and watch both sides of one record.
Take the guided tour Book a demo
Take the NEC4 ECC quiz, use the free NEC tools or download free NEC templates.
This guide is general information in our own words, not legal advice. Your contract and its Contract Data always govern. NEC, NEC3 and NEC4 are trade marks of Thomas Telford Ltd; Contract Status is not affiliated with or endorsed by NEC.