# BTC\_TEST network fee is increased very high (starting from 0.0002691 based on request amount 0.0001)

**URL:** <https://community.fireblocks.com/t/btc-test-network-fee-is-increased-very-high-starting-from-0-0002691-based-on-request-amount-0-0001/3005>\
**Category:** Developer Discussion\
**Created:** [October 28, 2025, 7:03pm UTC](https://community.fireblocks.com/t/btc-test-network-fee-is-increased-very-high-starting-from-0-0002691-based-on-request-amount-0-0001/3005 "2025-10-28T19:03:39Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![night](https://avatars.discourse-cdn.com/v4/letter/n/90db22/32.png) [@night](https://community.fireblocks.com/u/night)\
**Post date:** [October 28, 2025, 7:03pm UTC](https://community.fireblocks.com/t/btc-test-network-fee-is-increased-very-high-starting-from-0-0002691-based-on-request-amount-0-0001/3005/1 "2025-10-28T19:03:39Z")

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Recently fireblocks sandbox has increased the network fee for BTC\_TEST coin dynamically based on the amount:  
{  
“asset”: “BTC”,  
“originalAmount”: “0.0001”,  
“networkFee”: “0.0002691”,  
“netAmount”: “-0.0001691”  
}  
{  
“asset”: “BTC”,  
“originalAmount”: “0.001”,  
“networkFee”: “0.0003575”,  
“netAmount”: “0.0006425”  
}

The network fee is supposed to be the same regardless of request amount. it was working perfectly before - the network fee was constantly 0.00009165 regardless of request amount. But now the behaviour is completely changed. Please advise.

Thank you.  
Night Kimura