However, since you mentioned that you'll add small payments regularly to the wallet, it'll affect your "transaction fee" instead.
In that case, my previous reply about controlling the number of your UTXOs should be applied.
Moreover, an Electrum 2fa wallet is "MultiSig" which has significantly higher size per input than a standard wallet.
Follow my suggestion to decrease the inbound transactions' frequency and increase each amount instead.
Am I reading this right?
More transaction 'bundled' like this will cause each outgoing transaction to become larger (more kb) so miner's fee will be higher.
Could you estimate by how much?
4 transactions IN, 1 transaction OUT = x
20 transactions IN, 1 transaction OUT = 2x? or 5x? Or only 1.3x? (what's your best guess)
I'm assuming we're only talking miner's fee here. 2FA fee to Trusted Coin will not grow and doesn't depend on how many transactions I have...right? (I just get charged for every 20th outgoing transaction, regardless of it's size in KB, regardless of wallet type etc)...right?