Commission shaving is an unethical practice where a CPA network or affiliate program intentionally fails to report or credit valid conversions to a publisher, keeping the advertiser's payout for themselves. Your traffic generated the conversion, the advertiser paid the network, but the network only reports a portion of those conversions to you — "shaving" off the rest and pocketing the difference. Commission shaving is one of the most discussed trust issues in affiliate marketing.
Why Understanding Commission Shaving Matters
If you don't know commission shaving exists, you can't protect yourself from it. A publisher who sends 100 real conversions but only gets credited for 85 is losing 15% of their revenue — and they might assume the missing conversions are due to normal scrub rates, tracking issues, or low conversion rates rather than intentional theft. The Performance Marketing Association advocates for industry standards around transparency and ethical practices that help combat this issue.
The challenge is that commission shaving is difficult to prove definitively. There's always a gray area between legitimate scrubbing (rejecting truly invalid conversions) and dishonest shaving (hiding valid conversions). This ambiguity is what allows bad actors to get away with it.
How Commission Shaving Works
- You send traffic to an offer and generate 100 legitimate conversions.
- The advertiser confirms all 100 conversions and pays the network for 100 x $5.00 = $500.
- The network is supposed to pay you 100 x $4.00 = $400 (keeping $1.00 per conversion as their margin).
- Instead, the network only reports 85 conversions to you and pays you 85 x $4.00 = $340.
- The network keeps the extra 15 x $4.00 = $60 on top of their normal margin.
From your perspective, it looks like 15 of your clicks didn't convert. But they did — the network just didn't tell you.
Signs of Potential Commission Shaving
| Warning Sign | What It Could Mean | What to Do |
|---|---|---|
| Sudden drop in conversion rate | Network started shaving, or offer/traffic quality changed | Cross-reference with your own tracking; ask your AM |
| Your tracking shows more conversions than the network | Possible shaving, or tracking discrepancy | Run a parallel tracking test with a third-party tracker |
| Conversion rate differs between networks for the same offer | One network may be shaving (or offers may have different landing pages) | Split-test the same offer on multiple networks |
| EPC significantly lower than network-reported average | Your conversions may be getting shaved, or your traffic quality differs | Compare your EPC trend over time; sudden drops are suspect |
| Network refuses to provide conversion details | Lack of transparency is a red flag | Switch to a more transparent network |
How to Detect Commission Shaving
1. Use Independent Tracking
Run a third-party tracking platform (Voluum, RedTrack, BeMob) alongside the network's tracking. If your tracker consistently shows 10-20% more conversions than the network reports, something is wrong. Small discrepancies (2-5%) are normal due to tracking methodology differences. Larger, persistent gaps are suspicious.
2. Split-Test Across Networks
If the same offer exists on two different networks, send equal traffic to both. If Network A reports a 6% conversion rate and Network B reports 4% for identical traffic, Network B may be shaving. This is the most reliable detection method because you control for traffic quality.
3. Monitor Conversion Rates Over Time
Sudden, unexplained drops in conversion rate — especially when your traffic source and volume haven't changed — can indicate the start of shaving. Plot your conversion rates weekly and investigate anomalies.
4. Ask Direct Questions
Ask your affiliate manager for detailed conversion reports: click timestamps, conversion timestamps, and rejection reasons. Transparent networks provide this data readily. Networks that refuse or provide vague answers may have something to hide.
5. Test with Known Conversions
Some publishers create test conversions themselves (with the offer's permission) to verify they're tracked accurately. If you complete an offer through your own tracking link and the conversion doesn't appear, that's a clear red flag.
How to Protect Yourself
- Work with reputable networks — Choose networks with established reputations, industry tenure, and positive publisher reviews. Networks like RevBoost (operating since 2008) have long track records of transparent reporting and on-time payments.
- Always run independent tracking — Third-party trackers are your audit trail. Don't rely solely on the network's dashboard. The IAB recommends independent measurement and verification as a best practice across all digital advertising channels.
- Diversify your network relationships — Don't put all your traffic through one network. Running the same offers across multiple networks provides natural audit data.
- Build relationships with your AM — A strong relationship with your affiliate manager gives you a trusted internal advocate who can investigate discrepancies on your behalf.
- Document everything — Keep records of your tracking data, screenshots of conversion counts, and communication with your network. If you need to dispute earnings, documentation is essential.
- Trust your data — If something consistently doesn't add up, don't rationalize it away. Move your traffic to a network you trust.
Commission Shaving vs. Legitimate Scrubbing
| Factor | Legitimate Scrubbing | Commission Shaving |
|---|---|---|
| Reason | Fraud, duplicates, non-qualifying actions | Network stealing valid conversions |
| Transparency | Network provides clear rejection reasons | Vague or no explanation |
| Consistency | Scrub rate stays relatively stable | Sudden unexplained increases |
| Verification | Discrepancies are small and explainable | Large, persistent discrepancies |
| Response to questions | Detailed answers with data | Deflection, delays, or silence |
Example: Detecting Shaving with a Split Test
Scenario: You suspect Network X might be shaving. You find the same fintech offer on Network X and RevBoost. You split your traffic 50/50 for one week:
| Metric | Network X | RevBoost |
|---|---|---|
| Clicks sent | 1,000 | 1,000 |
| Reported conversions | 42 | 58 |
| Conversion rate | 4.2% | 5.8% |
| Payout per conversion | $4.00 | $3.75 |
| Total earnings | $168 | $217.50 |
Despite a slightly lower payout on RevBoost, the 38% higher conversion rate results in 29% more earnings. The massive conversion rate discrepancy on identical traffic strongly suggests Network X is shaving conversions.
Related Terms
- Scrub Rate — Legitimate conversion rejections, distinct from shaving but often used to disguise it
- EPC (Earnings Per Click) — Metric artificially lowered by commission shaving
- Affiliate Manager — Your first contact for investigating conversion discrepancies
- Pixel vs Postback Tracking — Postback tracking provides more data for detecting discrepancies
- Sub-ID — Tracking parameters that help cross-reference network data with your own
Transparent Reporting at RevBoost
RevBoost has built trust with publishers since 2008 through transparent conversion reporting, consistent payouts, and an open-door policy on data. See every conversion, every status, every payout. On-time payments since 2008 — Net-30 standard, with accelerated terms for qualified publishers.
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