Questions tagged [transaction-fees]

This tag should be used for questions related to paying transaction fees in the Bitcoin network.

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138
votes
10answers
312k views

Why is my transaction not getting confirmed and what can I do about it?

I sent a transaction without (or with an exceptionally small) transaction fee using extremely small or unconfirmed inputs while the stars were not standing right. For whatever reason, I have been ...
35
votes
3answers
30k views

Who gets Bitcoin transaction fees?

Whenever I send bitcoins from one wallet or one exchange to the next there is always a fee. This makes sense with the exchange sites, they are just collecting the fee so they can make a living. What ...
119
votes
10answers
41k views

How much will transaction fees eventually be?

Some people keep evangelizing that Bitcoin transaction fees are much lower than in PayPal or with credit cards. However, once nearly all 21 million bitcoins have been mined, the network will still ...
60
votes
3answers
68k views

How to calculate transaction size before sending (Legacy Non-Segwit - P2PKH/P2SH)

I know that I pay the transaction fee per kB, so how can I calculate how large the transaction will be before I send it via the RPC api. I run a site using bitcoins, and I cannot let the user's ...
32
votes
10answers
123k views

How to unstuck a low-fee transaction with blockchain.info?

I've sent a transaction from blockchain.info, but accidentally included too little fee. What can I do to cancel the transaction or speed up the transaction's confirmation? This is a complementary ...
5
votes
3answers
2k views

How can I avoid paying transaction fees?

A bitcoin transaction requires paying a fee to the network, and that fee changes depending on network congestion. During busy times the fee rate may increase substantially, so how can a user avoid ...
24
votes
3answers
15k views

How do miners select which transactions to include in a block?

Where and how do you view and select which transactions to include in the block you are trying to create? Do you look on the blockchain? Is there some tool that you can use that allows you to see ...
11
votes
4answers
21k views

How to unstuck a low-fee transaction with Electrum?

I've sent a transaction with Electrum, but accidentally included too little fee. What can I do to speed up the transaction's confirmation or to replace it? This is a complementary question to Why is ...
4
votes
3answers
1k views

Predict multi signature transaction size

I was looking for answer everywhere. Basically is there any way of calculate multi-sig transaction size when the transaction is creating, before the signing procedure? I was trying to find any pattern ...
13
votes
5answers
15k views

Is it possible to add a miner's fee after you send your bitcoins?

I accidentally sent a transaction without a miner's fee and I need it to clear as soon as possible. But, as far as I can tell it's going to take days if it goes through at all. Is there any way that I ...
5
votes
1answer
1k views

How is transaction fee calculated?

Some says that transaction fee is calculated based on the size of transactions. In short, does it mean based on the number of utxos? To be precise, does it mean depending on the size of all of input ...
27
votes
2answers
12k views

How can I combine all the tiny amounts I've received to minimise transaction fees, and do I need to?

Important parts in bold, for those who don't want to read the detail! I've received lots of tiny transactions, in amounts sometimes as low as 0.000003BTC. Even though I've also received (relatively) ...
13
votes
3answers
7k views

What is the exact formula for calculating transaction fees?

According to the Wiki: If the blocksize is more than 250 kB, transactions get increasingly more expensive as the blocksize approaches the limit of 500 kB. Sending a transaction when the blocksize ...
4
votes
3answers
1k views

How can market-based transaction fees scale?

Can someone please explain to me what I am missing? I don't see how variable, market-based transaction fees can scale. I go to a merchant's website to buy, how do I select a mining peer to pay ...
9
votes
1answer
25k views

Calculator for estimated TX-Fees

First of all, this refers to How to calculate transaction size before sending What is the exact formula for calculating transaction fees? I want to estimate the TX-Fee I would have to pay in a ...
16
votes
1answer
1k views

Are Bitcoin transactions permitted to have no outputs (i.e. all inputs become transaction fee)?

I am interested in the possible use of the Bitcoin (or other altcoin) blockchain as a generalized distributed ledger, meaning that it is useful for tracking information other than coin transactions ...
8
votes
2answers
3k views

What is the minRelayTxFee?

What is the minRelayTxFee? What is it used for, what's the default value and how does the value change?
25
votes
2answers
3k views

In order to reduce fees, can I 'consolidate' my wallet by sending the entire balance to a new address in the same wallet?

My balance is currently made up of lots of small amounts I know I'm not going to be using my bitcoin wallet for a while, so I don't care if the consolidation transaction is slow. Would creating this ...
15
votes
1answer
1k views

What happens when a miner does not claim all fees/generated coins?

Suppose that a miner for some reason has the generation transaction of their blocks not take all the possible coins. This can happen for a variety of reasons, almost all of which are bugs: An off-by-...
7
votes
2answers
2k views

SegWit transaction fee/byte

For transaction not spending SegWit outputs it's straightforward: if I have 1000 Satoshi fee set for 500 byte raw transaction, I end up with 2 s/b fee. How about transaction containing witness data? ...
9
votes
3answers
765 views

Is it possible for the miners to collude to blackmail a single wealthy address?

Imagine if a few miners who together control more than 50% of the network hash power decided to charge higher transaction fees just for addresses containing really large sums. For example, this ...
7
votes
2answers
4k views

What is the minimum transaction fee used for?

I have the bitcoin-qt client running on Ubuntu 12.10 and I see a transaction fee box in the preferences, but I am unsure of what it actually means - the wiki is overly complex, and I am unable to find ...
4
votes
1answer
3k views

Transaction fees and transactions with bitcoin-cli. Wallet address balance negative

I'm trying to make a bitcoin website and I tried to implement a sort of 'withdraw' button which would allow you to send your money in the wallet address to some other address. The problem I am facing ...
10
votes
4answers
3k views

How important is the fee for speed of confirmation?

I am developing a Bitcoin application, so I am sending a lot of "toy" transactions for testing, with 0 fees. But it seems that those take forever to get confirmed. (Right now I am waiting 45 minutes ...
9
votes
2answers
2k views

Could any standard fee transaction be double spent by using a higher fee?

I realize that if somebody makes a transaction without any fees and there have not yet been any confirmations, then the transaction could be double spent by just spending the same inputs to a ...
3
votes
3answers
609 views

How can some exchanges/services afford to pay for customers transaction fees?

Some exchanges and services (e.g. CoinBase, Bitstamp) pay for the transaction fees for their customers when the customers send bitcoins from their wallet/account. They might have tens of thousands of ...
10
votes
1answer
21k views

Concept of Validating Transactions

Trying to get my head around Bitcoin. Been watching tutorials, unsure if I still understand Alice wants to send Bob 5 Bitcoins Alice hashes the transaction with 5 Bitcoins and send's it to Bob's ...
10
votes
4answers
6k views

Is there a way to not pay the transaction fees when using the standard Bitcoin client?

I tried sending one satoshi (0.00000001 BTC) to one of my friend and the client always showed a dialog prompting me to pay 0.0005 BTC in fee, with the only options being OK (pay the fee) or cancel (...
19
votes
2answers
5k views

What happens if my transaction is not accepted because I did not pay fees?

I was reading this thread about a client fork that does not force transaction fees and I noticed the big red warning saying that some coins might get lost if I am not careful. What does this mean? ...
14
votes
1answer
1k views

Are there any pools or large miners running “child pays for parent” patch?

A feature available through pull #1647 gives the recipient of a transaction a method to help get a transaction to confirm. This feature is called "child pays for parent", and what it means is that ...
9
votes
1answer
2k views

When closing the channel for LN - how to calculate the fee for the blockchain transaction?

To be clear: Following is not about fees in Lightning Network. Following is about fees on blockchain for transaction which closes the channel in LN. Channel closing transaction can be created months ...
4
votes
3answers
941 views

1,500% transaction fee and 3,5 months to confirm?

So my service is skimming a tiny 0,001% (1/1,000) fee off every payment that gets through it. Most of the transactions are actually micro-payments so there are thousands of tiny unspent outputs ...
3
votes
2answers
1k views

How can I specify transaction fee size when creating a raw transaction?

Question: Am I able to specify the transaction size in a raw transaction without having to send "change" back to myself? I get some unspent bitcoins listunspent() I grab the txid, vout, and ...
4
votes
2answers
631 views

Why is the transaction priority removed?

As far as I know, in the earlier version of Bitcoin, there was a mechanism about transaction priorities. However, it has been removed (or not being taken into account anymore) and now the only ...
4
votes
2answers
1k views

Bitcoin Transaction Fee

Does the bitcoin transaction fee depend on the number of addresses in the proverbial from field or the number of transactions that led to the balance in the addresses in the from field. eg: I have 10 ...
10
votes
1answer
3k views

Does the Bitcoin Qt client have a minimum transaction fee?

I'm trying to transfer all of my 0.1 BTC located in one wallet to another wallet. I don't care how long it takes to finish, so I'd rather send it without paying any transaction fee. I'm new to this, ...
4
votes
2answers
240 views

Is there a reason big Bitcoin companies wouldn't use only SegWit transactions?

As I understand, SegWit allows anyone to create a SegWit address where they can send their bitcoins and transact from that wallet just as easily as they would with a traditional address. The SegWit ...
3
votes
2answers
5k views

Do we have to pay transaction fee if we transfer bitcoins from one wallet to another ?

Can this be done for free? also please mention wallets who do not charge transaction fee (if they exists)
2
votes
1answer
494 views

Forgot to add transaction fee, any way to add it now? [duplicate]

Today I sent 1.5 BTC to an exchange but forgot to add a transaction fee, the Qt wallet didn't even prompt me with one and I just clicked on Yes. Now it's been over 2 hours and it's not confirmed (as ...
2
votes
0answers
212 views

How to unstuck a low-fee transaction sent from MultiBit?

I've sent a transaction with MultiBit Classic or MultiBit HD, but accidentally included too little fee. What can I do to speed up the transaction's confirmation or to replace it? This is a ...
2
votes
2answers
375 views

Why was the transaction fee more for a 20 mBTC transaction than for a 25 mBTC transaction?

I just created a transaction to send 20 mBTC. The transaction fee was more than for a previous 25 mBTC transaction that I sent. Why is that? I'm using the Bitcoin Wallet App, vers. 5.24 by the ...
1
vote
3answers
780 views

Will ASIC miners hold the network “hostage” and demand a fee for their services?

I can see a trend coming where miners will likely hold the network "hostage" by mining blocks with no transactions in them... even when the block reward nears zero. This would leave transactions in ...
1
vote
1answer
156 views

How Bitcoin-Core does decide whether high fee during sendrawtransaction?

I am testing commands through Bitcoin testnet and Bitcoin Core. During the test, I intentionally attempted to create and broadcasts transactions by charging high fees.(1 BTC) During the final phase, ...
11
votes
1answer
3k views

What strategies can an e-wallet use in order to reduce transaction fees?

I noticed that most Bitcoin exchanges (MtGox, TradeHill, ExchangeBitcoins, etc.) do not charge any fees for withdrawing bitcoins. What kind of strategies can they use in order to reduce these costs?
10
votes
1answer
1k views

Since Bitcoin Core 0.14.0, how does a node with default settings compute the dust limit?

In earlier releases of Bitcoin Core, the dust limit was defined as an output whose spending would require more than 1/3 of its value as fees: https://bitcoin.stackexchange.com/a/41082/10845 The ...
5
votes
1answer
334 views

How many UTXOs have a marginal fee cost that's higher than its worth?

I define marginal fee cost as the number of bytes required to add that UTXO as an input to a TX multiplied by the satoshi/byte rate of the blocks being found. So for a normal p2pkh UTXO, this would ...
6
votes
1answer
1k views

Transfer BTCs without fees

I currently have BTC 0.38 in a wallet on a computer and I want to transfer all those Bitcoins on another machine. As I have the Bitcoins on a relatively new address (it has received 1 payment and ...
10
votes
3answers
5k views

How to estimate optimal fees for transaction in bitcoind?

As I understand, with the network congestion it's sometimes advisable to set a higher fee to process a transaction within a block or two. Is there some way to estimate the optimal fee through calls to ...
5
votes
1answer
1k views

Is Ethereum essentially Bitcoin with Turing-complete Script?

Is Ethereum essentially Bitcoin with a Turing-complete scripting language and, if I understand correctly, where the script to be executed (not its hash) is placed in the Ethereum blockchain? If so, ...
4
votes
1answer
569 views

Does it make sense to “collect” smaller transactions balances into a single account during low activity?

My understanding is that it's possible for extra bitcoins to be left in several accounts within my wallet. The scattering of these coins into different accounts may cause future transactions to ...