Fees
This page documents the bridge fee schedule for TAO and subnet Alpha assets across Bittensor and Solana.
Fee Schedule
Section titled “Fee Schedule”| Direction | Base Fee | Percentage Fee |
|---|---|---|
| TAO → wTAO | 0.002 TAO | Higher of 0.5% or 0.005 TAO |
| wTAO → TAO | 0.002 TAO | 0% (no additional percentage fee) |
| Alpha → wAlpha | 0.006 Alpha | Higher of 1.5% or 0.03 Alpha |
| wAlpha → Alpha | 0.006 Alpha | 0% (no additional percentage fee) |
Examples
Section titled “Examples”TAO to wTAO
Section titled “TAO to wTAO”For a bridge transaction of 10 TAO:
- Base Fee: 0.002 TAO
- Percentage Fee: Higher of 0.5% or 0.005 TAO
- 0.5% of 10 TAO = 0.05 TAO, which is higher than 0.005 TAO
Total fee = 0.002 TAO + 0.05 TAO = 0.052 TAO
Amount received on Solana = 10 − 0.052 = 9.948 wTAO
wTAO to TAO
Section titled “wTAO to TAO”For a bridge back transaction of 10 wTAO:
- Base Fee: 0.002 TAO
- Percentage Fee: 0% (no additional percentage fee)
Total fee = 0.002 TAO
Amount received on Bittensor = 10 − 0.002 = 9.998 TAO
Alpha to wAlpha
Section titled “Alpha to wAlpha”For a bridge transaction of 10 Alpha:
- Base Fee: 0.006 Alpha
- Percentage Fee: Higher of 1.5% or 0.03 Alpha
- 1.5% of 10 Alpha = 0.15 Alpha, which is higher than 0.03 Alpha
Total fee = 0.006 Alpha + 0.15 Alpha = 0.156 Alpha
Amount received on Solana = 10 − 0.156 = 9.844 wAlpha
wAlpha to Alpha
Section titled “wAlpha to Alpha”For a bridge back transaction of 10 wAlpha:
- Base Fee: 0.006 Alpha
- Percentage Fee: 0% (no additional percentage fee)
Total fee = 0.006 Alpha
Amount received on Bittensor = 10 − 0.006 = 9.994 Alpha
Notes & Clarifications
Section titled “Notes & Clarifications”- Fees are assessed on the source-side asset of the bridge direction. Network gas/transaction fees on Bittensor and Solana are separate and not included in the figures above.
- Percentage components use the higher-of rule where specified; minimum fixed thresholds (e.g., 0.005 TAO, 0.03 Alpha) apply when the percentage would be lower.
- The bridge UI will display the computed fee and estimated receive amount before you sign.
- Validator-specific rules (e.g., Alpha transferStake minimums) still apply and may affect feasibility of Alpha transfers (see How to Bridge).