In order to provide user security and confidence for anyone to use Haven we have implemented a fee structure. This ensures that any attempts at large scale manipulation of the price will come at a cost both in terms of actual fees as well as time to unlock the money.
The current fee structure is laid out below:
The chart below shows all the different types of transactions available to a user within the network. There are different fees and fee currencies depending on the transaction made.
Transaction type fee chart
|Transaction type||Fee type||Fee payable in:|
|XHV transfer||standard tx fee||XHV|
|xUSD transfer||standard tx fee||xUSD|
|XHV -> xUSD conversion||conversion fee + standard tx fee||XHV|
|xUSD -> XHV conversion||conversion fee + standard tx fee||xUSD|
Note: The same fees apply to onshore and offshore transactions.
To allow for a simpler transfer and conversion method the fees are payable in the sending currency. For example, a user does not have to have an XHV balance in their vault in order to send xUSD and vice versa.
This eliminates one of the issues commonly associated with DeFi products whereby you have to have a balance of one token in order to send another.
Standard network fees– These are the standard transaction fees that are paid to the miners on the Haven network. These are based on the same scale as standard Monero transaction fees. 5% of this is currently goes to the Haven team for paying the developers as well as listings, infrastructure and marketing costs. These are the only fees payable on transfers.
Conversion transaction fees– These fees are paid to the Haven governance wallet whenever a user makes a transaction between XHV and any other xAsset (xUSD/xBTC etc). The fee paid can vary considerably and depends on the unlock time chosen for the transaction.
So, what does that mean?
The fees are expressed as a % of the amount being converted.
Slower transaction = lower fee <—> Faster transaction = higher fee
|Unlock time (Hours)||Priority||Unlock time (blocks)||Fee as % of xUSD converted|
A conversion of 1000 xUSD to XHV using a priority 2 unlock (approx 48 hrs) would cost: 1000 x 0.05 = 50 xUSD exchange fee (+ std tx fee)
Why the big difference in fees?
An important part of maintaining network security and pricing integrity is by using a moving average in conjunction with a fee proportional to the size of the transaction.
If you want a faster transaction then you have to pay a higher % of the amount converted.
As the table above shows it can range from 20% right down to 0.2% for the slowest transaction time.
This has been implemented to reduce incentives for bad actors to attempt market price manipulation in order to gain financially as the cost of doing so makes it unviable.
NOTE: The conversion rate and therefore the fees are locked in at the time of the transaction confirmation not when the block is mined. This eliminates any potential slippage and ensures the user knows exactly what they will receive and the fees to be paid.
The fee structure above is used for the conversion process of minting/burning between XHV and xAssets.
For regular transfers of XHV or xAssets only the standard transaction fees apply. These can vary but are usually fractions of a cent or XHV and are based on the Monero fee structure.
Details of this can be found here: https://www.monero.how/monero-transaction-fees