ELECTRUM WALLET btc 0.001525 transaction reduced balance from 0.011 to 0.009475

[nc50lc]

-snip-

-snip-I can indeed see that I have 19 transactions with prepaid 2fa but, that still does not negate the fact that the electrum UI failed to disclose this fee to me on the get go.

The Disclaimer when choosing "wallet with 2-factor authentication" may be a little bit vague about the fee (not to mention the small font):

But as you can see, it's disclosed there.
There's also an info about preferences (underlined) about how'd you want to pay for the 2FA service, but it didn't specified where to find it (lower-right 'blue shield' icon).

Even so, Electrum will still display the entire transaction before you broadcast it, which will include the output for TrustedCoin's fee.

That will only show if "Advanced preview" in the preferences is on or he clicked "advanced" in the 'simple preview' after clicking "send".
And it's disabled by default.

The simple preview only consist of fee rate slider, 'send', 'cancel' & 'advance' button; after that, the 2FA code text box and an 'Ok' & 'Cancel' button.

[o_e_l_e_o]

That will only show if "Advanced preview" in the preferences is on or he clicked "advanced" in the 'simple preview' after clicking "send".

Even if I turn off "Advanced preview", after I hit "Pay" I get the simple fee slider, and then after I hit "Send" on the simple fee slider, I still get shown the "Transaction" box with all the inputs and outputs listed, the TXID at the top, the size, fee, LockTime, etc.

Is this different in 2FA wallets?

Edit: Maybe this is different because I am using a watch only wallet and therefore the transaction cannot be sent automatically, and so Electrum must display the transaction box so I can export the transaction to be signed on my airgapped device? If that's so, then that's a flaw in Electrum I think. The full transaction with all inputs and outputs should be displayed by default to all users prior to them broadcasting a transaction.

[nc50lc]

That will only show if "Advanced preview" in the preferences is on or he clicked "advanced" in the 'simple preview' after clicking "send".

Is this different in 2FA wallets?

Edit: Maybe this is different because I am using a watch only wallet and therefore the transaction cannot be sent

Yes, it will show when your wallet is watch-only or for 2FA wallets when you click 'cancel' in the 2FA code window instead of 'ok'.
It's pretty easy to reproduce it since it'll only take a minute to create test wallets.

Maybe because they want to make it as simple as possible for non-advanced users.

[HCP]

Additionally... if you click the "TrustedCoin"/2FA logo in the bottom right corner... the fees are displayed:


It also says that "an extra output is added to your transaction every time you run out of prepaid transactions."

#caveatEmptor, I guess...

[Azrl]

Nicely put, thank you.