No. Bitcoin addresses have a checksum of their own symbols. The chance of accidentally entering a false address with the correct checksum is virtually zero. It is much lower than, for example, with IBAN numbers.

If you make the transaction yourself - no. Transactions are pseudonymised and processed by a network without distinction. As Bitcoin is a decentralised network, there is no central location with the power to prevent other nodes from carrying out and verifying transactions - as long as these are covered and valid according to the rules of the network. 

Not at all! If you would like to exchange Bitcoin for i.e. Euro, you only pay taxes on the profit achieved by the price increase. And to be honest, paying taxes on profits doesn't sound that bad, does it?

Herefore the credit from the BitBucks app has to be transferred to another Bitcoin Wallet, with which the bitcoin amount can be converted into your desired currency at a so-called exchange market.

Usually the Bitcoin wallet keeps your private keys private by storing them in an encrypted file. You can also print the private keys as "Cold Wallet" and separate them from the Internet. You should be aware that you are solely responsible for the security of the keys. If you lose them, you lose your bitcoins. Wallets such as BitBucks, which store keys for their customers, can offer inexperienced users additional protection against key loss.

Bitcoin transactions are part of the blockchain and are therefore stored in every node of the network. “Blockexplorer” allows transactions to be traced using the BTC address or transaction ID. This is helpful in ascertaining that a transaction has actually occurred.

It's simple: copy the recipient's address into a field within your Bitcoin Wallet, enter the amount, and click "Send". In most BTC wallets, you can specify the amount in your local currency, so no conversion is required. Payment requests or the payment protocol are often used. They already include the amount and can either be activated by clicking or by copying them into the send field. Mobile wallets are able to scan transaction requests, so you only have to confirm the transaction. Bitcoin Wallets such as BitBucks even allow you pay with BTC by scanning the recipients QR-Code.

If you sell your Bitcoin on the same day at the end-of-day price, the volatility of the Bitcoin price hardly plays a role for you as a merchant. In addition, due to the pending halving and the deflationary character of Bitcoin, the price is expected to stabilize over time anyway.

A payment URI is a request for payment that many wallets can generate. URIs define a target address, an amount and may include a notification for the sender such as the order number. These can be scanned like a QR code or copied into the send field of a wallet. One click on the payment URI opens the wallet with the pre-formulated transaction.
The payment service provider BitPay uses the payment protocol. This enables BitPay to set fees for a transaction and transfer this amount to the miner itself. In this way, BitPay can increase the success rate of its payments. This payment method is used in the same way as the URI: you can scan it in, click the link or copy it into a wallet. In any case, not all wallets support the payment protocol.

A Bitcoin transaction attracts a fee which is paid to the miner. Under normal circumstances fees amount between one and five cents. However during peak times these may increase noticeably to values of 50 cents or even one euro. If you pay too little in fees, you will have to wait longer for confirmation of your transaction. Most wallets select the appropriate fees. Wallets like BitBucks, in which transactions can also be internally calculated, can save you fees and accelerate confirmation of your transactions.

All you need is the BitBucks app on your smartphone and a QR code attached to it next to the cashier. During the payment process the customer scans this QR code with his Bitcoin wallet, enters the required amount and within a second the payment is received on your mobile phone.

A Bitcoin wallet is software you can use to administer your bitcoins. There are many wallets for all common computer systems. You can choose between local and online wallets. A local wallet gives greater independence and privacy, while an online wallet can offer more convenience. 

With a transaction, you transfer Bitcoin from your Bitcoin wallet to another party. This transaction or payment will be signed off with your private key and forwarded to the node in the Bitcoin network. This is propagated across the whole network until it reaches a miner, which can confirm the transaction. 

As soon as the miner puts your transaction into a block and then attaches it to the blockchain, the transaction is “confirmed”. This means that it is an official part of the blockchain and can no longer be countermanded. “Confirmation” corresponds to the two-week buyer protection period with PayPal or the settlement period with credit cards, which can take months. With Bitcoin, the confirmation period usually lasts 5-10 minutes. 

In theory, everywhere there is Internet. All you need is a Bitcoin Wallet such as BitBucks. Unlike national currencies, however, there is no obligation to accept Bitcoin as legal tender and so individual merchants may choose to accept it or not. At any rate, there are shops and stores in almost every country in the world that accept payments in Bitcoin, as well as numerous international online providers. Many merchants are also willing to accept BTC on request.