Trezor TX shows that transactions under 1 sat work

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hodler2019Legendary
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#1Dec 18, 2020, 07:34 AM
So, it’s been established that some mining pools are okay with fees below 1 sat per byte. I’ve been gradually sending transactions to prove this actually works. This thread is just for reference. On October 5, 2025, I sent a transaction with a fee of 0.91 sats, and the total fee was 0.00000203 btc. Check it out here: https://btc1.trezor.io/tx/c5380d18e25bcd914a8b4e696d1da27d39ad3272cdd5bc842dd7ba5d63c824a7 I used a legacy address for this one. Then on October 14, 2025, I sent another transaction using 0.80 sats, and the fee came to 0.00000113 btc. Here’s the link: https://btc1.trezor.io/tx/d5673baed165acdfd40141221660b5345d6fe8aa632f020bda6ecbe6686dfde1 This time, I used a bc1 address. On October 18, 2025, I sent a transaction with a fee of 0.70 sats, and the total fee was 0.00000157 btc. You can see that transaction here: https://btc1.trezor.io/tx/fd4ace85e016ef1400365d079ee42c72c9ef9c75400a1ae325497bd65297ef1c Again, I went with a legacy address. I’m aiming to push the limits even further, like: 0.91 done 0.80 done 0.70 done 0.60 0.50 0.40 0.30 0.20 0.10 My goal is to show that low-fee transactions really do work, and maybe help get wider acceptance for fees under 1 sat per byte with this info.
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pixel2014Hero Member
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#2Dec 18, 2020, 12:11 PM
I am using 0.3 to 0.4 sat/vbyte and it has been working. But I am seeing 0.5 sat/vbyte right now on the mempool. This is where we began it: How to make a bitcoin transaction and pay less than 1 sat/vByte
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d4rk5tackSenior Member
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#3Dec 18, 2020, 03:24 PM
This is exactly what I was about to ask, that wouldn’t it be nice if OP actually adds the sever he is connected and possibly the wallet so that most that will like to try this out can actually switch to such server, I got that of LoyceV for electrum wallet but will want to see maybe your own server since there is still most of this public wallet that do not have this yet. If it is your personal server then wouldn’t it be better to drop it so others can access and relay lower fees too Good thread, it’s high time one starts using lower fees although some wallets still do not allow connecting to this servers yet
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hodler2019Legendary
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#4Dec 18, 2020, 08:36 PM
It is a standard trezor 1. hardware wallet and  standard trezor Suite software.  I am on a Mac mini 4 with Sequia 15.5 os
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pixel2014Hero Member
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#5Dec 18, 2020, 08:49 PM
For Trezor Suite, I think it is done automatically, no need to connect to any special server. You can get more information on the link that I posted above. Use the ones that can do it. Electrum, Bluewallet, Sparrow and Trezor Suite can all do it. Also all hardware wallets that you can connect to Electrum or Sparrow will do it when connected to the wallet.
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hodler2019Legendary
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#6Dec 18, 2020, 10:23 PM
Yeah they did a change. So it is simple to do. Part of why I posted this is that if your wallet software or hard ware does not do it you can complain and show this thread. As I would like to see any and all wallets do it. With zero extra work other than just picking the fee yourself. Trezor has Standard fee High fee Advanced fee. So I pick advanced and add 0.9 sats   this got moved to 0.91 for some rounding issue of some type. or 0.8 sats or 0.7 sats
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hodler2019Legendary
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#7Dec 19, 2020, 12:20 AM
here is a new send this is 0.6 sats all on a trezor type 1 model with trezor suite and a Mac mini it is easy Peasy https://btc1.trezor.io/tx/239e9c54cb2560b53cd188e075ecb72e80b2e3ae3ee32dacb19aebf0f38c7e03 note I checked advance and use 0.6 sats so the size was 223 bytes and x 0.6 = 114 sats opened the trezor with code tells me check address clearly shows new address send is on its way
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hodler2019Legendary
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#8Dec 19, 2020, 04:21 AM
to mods I did this separately on purpose for clarity. sometimes wallets can give bad estimates for time. note is says 12 hours for confirm and confirm was under 1 hour
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pixel2014Hero Member
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#9Dec 20, 2020, 02:19 PM
Try 0.3 sat/vbyte now, it will get confirmed. The fee rate may start to increase tomorrow which will be in some hours time. I have used 0.3 sat/vbyte several times.
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hodler2019Legendary
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#10Dec 22, 2020, 05:09 AM
I will try 0.5   https://btc1.trezor.io/tx/90b027ed518eb209313d5a178c08b8fddcafdaaae6d73c370dfaf6c8f36feca7          done in under 10 minutes 0.4    https://btc1.trezor.io/tx/f536f2d6310c307f4b75b0098a3dacdd7c07c54a63ff13c7f271fa2fa9db919d        done in under 10 minutes 0.3    https://btc1.trezor.io/tx/5253654b0428c4a901fe74d9fda97f0fb9640d87cd4017a9a454dfbce92065f9      done in under 10 minutes may as well do 0.2 and 0.11 0.2       https://btc1.trezor.io/tx/1bce33b0dca55c8e3ea143730ccb5970f94577ba3fe89c1aea292ee0368ae610 done in under 10 minutes 0.11         https://btc1.trezor.io/tx/91e4670c066df703d756d9ff6bcf95566585ff4e872d19c75a929c4f697c3395       still waiting I think it would have cleared but I put it in too slowly but the thread shows 0.2 to 0.91 all cleared very fast.
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eric_diamondFull Member
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#11Dec 22, 2020, 07:10 AM
Can I contribute? Not Trezor, but my last tx with electrum was confirmed with 0.30 sat/vByte (0.00000156 BTC for 7 inputs and 1 output). Had to run a few extra commands, though... https://mempool.space/tx/17d83dbc4a9ca0f5b7a36de278af39b4fba43fb0cb341778e0be2b6d4cfcd752
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hodler2019Legendary
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#12Dec 22, 2020, 12:24 PM
Good info. Yeah people need to see that it is not hard to do. The trezor steps are really easy. EVEN if my 0.11 takes a long time the 0.2 was quick under 10 minutes time. Also i did bc1 and old school legacy need to do a segwit maybe tommorrow.
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pixel2014Hero Member
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#13Dec 22, 2020, 06:15 PM
With how the mempool has been for weeks, 0.1 sat/vbyte can not get confirmed. Likely it will later be dropped.
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humbleledgerLegendary
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#14Dec 22, 2020, 09:28 PM
Timing is everything, my 0.21 sat/vbyte transaction took 4 weeks to confirm. So mempool is slowly working through the pile of the low-fee transactions. Mempool.space places your transactions at 17 blocks from the top. It can take weeks to confirm.
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hodler2019Legendary
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#15Dec 22, 2020, 10:08 PM
year I figured it won't make it. But  0.24 seems good or 0.33 which is a real savings. I do not do a lot of sends of btc so it is a far less issue for me. But many send a lot and it can be a problem as 1.0 is 3x that of 0.33 and 4x of 0.24
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hodler2019Legendary
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#16Dec 23, 2020, 04:15 AM
So I cancelled this after 50 days or so. Oct 19 to Dec 11 and I decided 0.11 is not likely to work. but I did get 0.21 and up to go.
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gr3g.0rbitHero Member
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#17Dec 23, 2020, 10:16 AM
If only the majority of mining pools accept sub 1sat/vB transactions, the result would've been different. Most of them would rather mine non-full blocks when there's not enough 1sat/vB+ transactions than accept those with lower fee rates.
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SwiftMinerSenior Member
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#18Dec 23, 2020, 10:54 AM
This is true and also very bad. It's that same selfish incentive that prompts pools to use no less than 1 sat/byte as purge fee and because of this fees overtime generally tends to increase drastically as most people want a fast confirmation whilst still trying to avoid the near values of the purge fee. Now that fees have subsided a lot some wallets are still calculating and predicting relatively higher fees except you probably do a double check on the mempool before broadcasting.
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hodler2019Legendary
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#19Dec 23, 2020, 03:24 PM
well 03.44 is very good at the moment .  So fees went up a lot from 0.21 which worked in under an hour for me.
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yield_moonFull Member
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#20Dec 23, 2020, 05:40 PM
Good for you philip, it’s not something I like to do though. It stresses me out waiting for an unspecified amount of time to wait for the first confirmation. I’m probably a bit stupid but I usually always pay enough to be in the next block. For larger amounts in the past it has given me anxiety when for example Bitcoin Core estimates the fee and I am sat waiting hours for a confirmation. I have had to use RBF a number of times for that reason. These days I just pay probably more than is required to get a quick confirmation.
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