# fee structure

All fees on Durianfun are **transparent, on-chain, and capped**. Here's the full picture.

## At a glance

| Event                            | Fee               | Split                                       |
| -------------------------------- | ----------------- | ------------------------------------------- |
| **Create a token**               | 0.1 KUB one-time  | 100% → Treasury                             |
| **Trade on bonding curve**       | 1.067% per trade  | 0.900% Treasury · **0.167% Creator rebate** |
| **Swap on AMM (post-grad)**      | 0.40% per swap    | 0.30% Treasury · **0.10% stays in pool**    |
| **Graduation reward — treasury** | 50 KUB (one-time) | 100% → Treasury                             |
| **Graduation reward — creator**  | 10 KUB (one-time) | 100% → Token Creator                        |

## 🧾 Creation fee

**0.1 KUB** per token creation, labeled as "deployment gas cost" in the UI. This is an anti-spam measure — prevents bots from flooding the platform with garbage tokens.

The fee is sent directly to the Durianfun treasury. Excess KUB sent is refunded automatically within the same transaction.

## 🔄 Bonding-phase trading fee — **1.067%**

Every buy and every sell on the bonding curve pays 1.067% of the trade size:

| Portion            |          % | Recipient                                   |
| ------------------ | ---------: | ------------------------------------------- |
| **Treasury**       |     0.900% | Durianfun operating fund                    |
| **Creator rebate** | **0.167%** | **Token creator (you, if you launched it)** |

{% hint style="success" %}
**The 0.167% creator rebate is direct, instant, on-chain.** No claim contract, no gas, no waiting. The moment a trade lands, your wallet gets the rebate.
{% endhint %}

## 🎓 Graduation rewards (one-time)

When a token graduates, two automatic payouts happen in the same transaction:

* **50 KUB → Treasury**
* **10 KUB → Creator**

Even if the creator has moved on and isn't watching, the 10 KUB arrives in their wallet automatically. A gas-safe fallback guarantees graduation never gets blocked even if the creator wallet is a malfunctioning contract.

## ⛳ Post-graduation AMM fee — **0.40%**

After graduation, trading continues on a permanent AMM. The fee is 0.40%, split:

| Portion            |         % | Recipient                                  |
| ------------------ | --------: | ------------------------------------------ |
| **Treasury**       |     0.30% | Durianfun operating fund (direct transfer) |
| **Liquidity pool** | **0.10%** | **Stays in pool — deepens reserves**       |

The 0.10% LP portion is **hardcoded into the AMM contract**. Nobody — not the creator, not Durianfun, not the factory owner — can change it.

{% hint style="info" %}
The LP fee is a self-compounding liquidity mechanism. Every swap makes the pool slightly deeper than before, which reduces slippage for future trades.
{% endhint %}

## 🔒 Fee caps (enforced on-chain)

* **Bonding fee:** **HARD CAP 2%** (enforced by `MAX_FEE_PPM = 20,000` in contract — the owner literally cannot set it higher)
* **AMM fee:** **IMMUTABLE** at 0.40% — coded as `constant` in the AMM contract. No setter exists.
* **Creation fee:** **IMMUTABLE** at 0.1 KUB — coded as `constant` in the factory. No setter exists.

These limits are verifiable on [Kubscan](https://www.kubscan.com/) where all contracts are source-verified.

## Example fee flow

### Trader buys 10 KUB of token $MEME (still on bonding curve)

```
User sends:           10.000 KUB
Trading fee (1.067%):  0.1067 KUB
  ├─ Treasury:         0.0900 KUB
  └─ Creator of $MEME: 0.0167 KUB  ← instant rebate
Tokens received:       (10 - 0.1067) KUB worth
```

### Same trader swaps 10 KUB on $MEME AMM (after graduation)

```
User sends:           10.000 KUB
Trading fee (0.40%):   0.040 KUB
  ├─ Treasury:         0.030 KUB
  └─ Stays in pool:    0.010 KUB  ← deepens $MEME liquidity
Tokens received:       (10 - 0.040) KUB worth
```

## No hidden fees

Everything trading-related is one of the above. There are no:

* ❌ Withdrawal fees
* ❌ Deposit fees
* ❌ Inactivity penalties
* ❌ Balance-based taxes
* ❌ Anti-bot slippage taxes (beyond standard slippage)

If a cost isn't on this page, Durianfun isn't charging it.


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