BTC tax

1. In order to understand the technical principle of bitcoin, we need to understand two important cryptographic techniques: hash code: it converts a long string into a fixed length string, and its conversion is irreversible, that is, it is impossible to guess the original string from hash code. Sha256 is mainly used in bitcoin protocol
public key system: corresponds to a public key and a private key, keeps the private key in the application and publishes the public key. When Party A transmits information to Party B, it can use Party A's private key to encrypt the information, and Party B can use Party A's public key to decrypt the information, so as to ensure that the third party cannot impersonate Party A to send the information; At the same time, when Party A transmits information to Party B, it is encrypted with Party B's public key and sent to Party B, and then Party B decrypts it with his own private key, so as to ensure that the third party cannot eavesdrop on the communication between the two people. RSA is the most common public key system, but the lliptic curve digital signature algorithm is used in bitcoin protocol. What's the difference between cash and bank account? Bitcoin is an electronic currency in BTC. In this article, it is also used to refer to the whole bitcoin system. Like opening an account in a bank, the corresponding concept in bitcoin is address. Everyone can have one or more bitcoin addresses, which are used to pay and collect money. Each address is a string that starts with 1. For example, I have two bitcoin accounts, and. A bitcoin account is uniquely determined by a pair of public key and private key. To save the account, you only need to save the private key file. Unlike bank accounts, banks keep all transaction records and maintain the book balance of each account, while bitcoin's transaction records are jointly maintained by the whole P2P network through a pre agreed protocol. How much money is in my account address? Although the current account balance can be seen by bitcoin software, unlike banks, there is no place to maintain the book balance of each address. It can only calculate the account balance in real time through all historical transactions. How do I pay? When I pay from address a to address B of the other party, the payment amount is e. at this time, both parties will announce the transaction information to each network node, telling address a to pay to address B, and the payment amount is e. In order to prevent the third party from forging the transaction information, the transaction information will be encrypted with the private key of address A. at this time, the network node receiving the transaction information can use the public key of address a to verify that the transaction information is indeed sent by address a. Of course, trading software will help us do these things, we just need to input the relevant parameters in the software. What will the network node do after receiving the transaction information? This is the most important part of the bitcoin system, which needs to be elaborated. For the sake of simplicity, only bitcoin protocol has been implemented. In the current version, each network node will save all transaction information synchronously. There are two kinds of transaction information in history, one is & quot; Verified & quot; The transaction information, that is, the verified transaction information, is stored in a series of "blocks". Each & quot; block" Is the previous & quot; bock" The ID of each block is the hash code of the hash code of the block and the new transaction information (see an actual block). The other category refers to those who also & quot; Unverified & quot; The transaction information just paid above belongs to this category. When a network node receives new unverified transaction information (possibly more than one), it can calculate the book balance of each address at that time because the node keeps all the transaction information in history, so it can calculate whether the transaction information is valid, that is, whether there is enough balance in the payment account. After eliminating the invalid transaction information, it first takes out the last & quot; block" Then, the unverified transaction information is combined with the ID, and a verification code is added to form a new "block". It needs a lot of calculation to build a new block, because it needs to calculate the verification code, so that the above combination becomes a block, that is, the first several bits of the hash code of the block are 1. At present, the first 13 bits need to be 1 (generally, the specific method is uncertain), which means that if the block is generated by enumeration method, the average number of enumerations is 16 ^ 13. Using CPU resources to generate a block is called "gold mining", because the proction of the block will get a certain reward, and the reward information has been included in the block. When a network node generates a new block, it will broadcast to other network nodes. However, this network block may not be accepted by the network, because it is possible that other network nodes have proced the block earlier. Only the earliest block or the block with the largest number of subsequent blocks is valid, and the remaining blocks are no longer used as the initial blocks of the next block. How does the other party confirm that the payment is successful? When the payment information is distributed to the network node, the network node begins to calculate whether the transaction is valid (that is, whether the account balance is enough to pay), and attempts to generate blocks containing the transaction information. When six blocks (one direct block and five subsequent blocks) contain the transaction information, the transaction information is considered "verified", so that the transaction is formally confirmed, and the other party can confirm the successful payment. A possible problem is that I will pay the balance of address a to address B, and at the same time pay to address C. If I only verify that the single comparison transaction is valid. At this point, my way of cheating is to generate six blocks including B to B and six blocks including C to C before the truth is revealed. Because I need a very long CPU time to generate a block, compared with the whole network, the probability of my cheating success is very small. What is the motivation of network nodes to proce blocks? As can be seen from the above description, in order to make the transaction information effective, the network node needs to generate 1 and 5 subsequent blocks to contain the transaction information, and such block generation is very CPU intensive. How to let other network nodes help to proce blocks as soon as possible? The answer is very simple. The agreement stipulates that BTC will be rewarded for the address where the block is proced, as well as the Commission promised by both parties. At present, the reward for procing a block is 50btc, which will be halved every four years in the future. For example, the reward will be 25btc from 2013 to 2016. Is the transaction anonymous? Yes, and No. All bitcoin transactions are visible. We can check all transaction records of each account, such as mine. But what's different from the banking monetary system is that everyone's account itself is anonymous, and everyone can open many accounts. In general, anonymity is not as good as it claims. But bitcoin has another advantage in doing black market trading: it can't be frozen. Even if the police trace a bitcoin address, there is nothing they can do unless they trace the computer used by the exchange based on the Internet address. How to ensure that bitcoin does not depreciate? Generally speaking, in the case of equivalent trading activities, the value of money is inversely proportional to the amount of money issued. Unlike the traditional money market, the central bank can determine the amount of money issued. Bitcoin does not have a central issuing institution. Only by procing blocks can we get a certain amount of BTC currency. Therefore, bitcoin's new amount of money depends on: 1. The speed of procing blocks: bitcoin's agreement stipulates that the difficulty of procing blocks is fixed at an average of 2016 every two weeks, about 10 minutes. Moore's law of doubling CPU speed every 18 months will not speed up the proction of block. 2. The number of rewards for block proction: at present, 50 BTC is awarded for each block proced, which is halved every four years. In 2013, 25 BTC is awarded, and in 2017, 12.5 BTC is awarded. Considering the above two factors, bitcoin's currency issuing speed is not controlled by any single node in the network. Its protocol makes the currency stock known in advance, and the maximum stock is only 21 million BTC

2. In our country, it is forbidden to open Bitian mine< The central information office of the people's Bank of China, the Ministry of instry and information technology, the State Administration for Instry and commerce, the China Banking Regulatory Commission, the China Securities Regulatory Commission and the China Insurance Regulatory Commission
notice on preventing the risks of token issuance and financing In essence, the so-called "virtual currency" such as ether currency is a kind of unauthorized illegal public financing behavior, which is suspected of illegal selling token tickets, illegal issuing securities, illegal fund-raising, financial fraud, pyramid schemes and other illegal criminal activities. Relevant departments will closely monitor relevant developments, strengthen cooperation with judicial departments and local governments, strictly enforce the law in accordance with the current working mechanism, and resolutely deal with market chaos. If suspected crimes are found, they will be transferred to judicial organs

the token or "virtual currency" used in token issuance financing is not issued by the monetary authority, has no monetary attributes such as legal compensation and compulsion, does not have the same legal status as currency, and cannot and should not be used as currency in the market< (2) no organization or indivial is allowed to engage in the financing activities of token issuance illegally. Organizations and indivials that have completed the token issuance and financing should make arrangements such as refund, reasonably protect the rights and interests of investors, and properly handle risks. Relevant departments will seriously investigate and deal with the activities of token issuance and financing that refuse to stop and the illegal behaviors in completed token issuance and financing projects< 4. Financial institutions and non bank payment institutions shall not carry out business related to token issuance and financing transactions

financial institutions and non bank payment institutions shall not directly or indirectly provide procts or services such as account opening, registration, trading, clearing and settlement for token issuance and financing and "virtual currency", It is not allowed to underwrite insurance business related to token and "virtual currency" or include token and "virtual currency" into the scope of insurance liability. Financial institutions and non bank payment institutions shall report to the relevant departments in a timely manner if they find clues of violation of laws and regulations in token issuance financing transactions< 5. The public should be highly alert to the potential risks in the financing and trading of token issuance

there are multiple risks in the financing and trading of token issuance, including the risk of false assets, the risk of business failure, the risk of investment speculation and so on. Investors should bear the investment risk on their own, and hope that the majority of investors will be wary of being cheated

for all kinds of illegal financial activities carried out by using the name of "currency", the public should strengthen the awareness of risk prevention and identification ability, and timely report relevant illegal clues.

3.

Heavy weight! What kind of information is released behind the people's Daily's re evaluation of special currency

April 18, 2018

as the wind vane of policy, people's Daily has a self-evident influence on all walks of life. On April 16, people's Daily published a comment on bitcoin and other digital currencies, to the effect that it is difficult to ban digital currencies completely, and landing payment should be opened. For a time, it triggered a big discussion on policy risk in the currency circle. Why did people's daily comment on bitcoin again? Does this mean that China will lift the ban on bitcoin? Today, I'd like to analyze the information hidden behind the people's daily article

therefore, it is boldly predicted that there can only be one form of bitcoin and blockchain enterprises in the future, that is, the form of Instrial Park supported by the state. As the saying goes, bitcoin is not a good blockchain if it does not solve the employment rate. At present, the whole market is not mature, and the state will not prohibit OTC trading for the time being. However, with the increasing economic risks, the supervision of the currency people will be more and more strict

4.

According to the regulations of notice 2014-21 of the IRS:

1. The information range of virtual currency payment is consistent with that of other property payment

2. Virtual currency paid to service providers and independent contractors should be taxed, and the tax rules of freelance also apply to virtual currency. Taxpayers usually have to get form 1099-MISC

3. When using virtual currency to pay wages to employees, they must also pay taxes, and they also need to pay federal income tax and payroll tax

4. The third party accepting virtual currency settlement payment on behalf of the merchant must report the payment status in form1099-k, payment card and the third party network dealer

5. Based on the fact that the virtual currency in the hands of taxpayers is a kind of capital asset, the gains or losses in the transaction of virtual currency and the sales of virtual currency need to be taxed

extended information:

legal status of bitcoin in China

in China, the regulations on the administration of RMB prohibit the proction and sale of token tickets. Because there is no clear judicial interpretation of the definition of token ticket, if bitcoin is included in the "token ticket", the legal prospect of bitcoin in China will face uncertainty

the notice of the Ministry of culture and the Ministry of Commerce on strengthening the management of virtual currency of online games (Wen Shi Fa [2009] No. 20) on June 4, 2009 stated that the application scope of virtual currency of online games was defined for the first time, and the distinction between the current virtual currency of online games and the virtual props in the game was made; At the same time, the notice said that the "notice" stipulates that enterprises engaged in related services must be approved before they can operate< br />

5. In the digital currency community, bitcoin is considered as currency, but according to the 12.5 notice of the central bank and other five ministries and commissions, bitcoin is defined as a special Internet commodity, and people can buy and sell it freely at their own risk. Last August, Germany defined bitcoin as a unit of account, a private currency. Some people think that bitcoin is a kind of taxable property, while others think that bitcoin is money.

6. A wise man once said that once a man is born, he cannot escape taxes and death. However, when the concept of bitcoin was proposed, there was a glimmer of hope that most of us thought we might be able to evade taxes. Unfortunately, this was a flash in the pan, as the IRS decided to tax virtual currency holdings. Now, bitcoin is regarded as an official asset by various government agencies in the United States, so it has to pay taxes
How do we know what should and should not be taxed? Now, we have some experts who can help us understand, but if you are involved in cryptocurrency and live in the United States, it will be easier. Laura shin is such a kind and helpful person. She explains how to deal with digital currency and the IRS when it comes to taxation. Her article in Forbes clearly explains the different sources of bitcoin and digital currency. First, all digital monetary assets are regarded as capital assets like stocks and bonds. The IRS calls cryptocurrency an asset in its guidance 14-21
there is only one way to own digital currency or spend it, and that is to start mining. If you succeed in mining some bitcoin, any block reward you may get depends on the amount of bitcoin you get and the market value at that time. It's very important to have the right record, because the value of bitcoin is bound to fluctuate, and you never know how much bitcoin is worth when you pay taxes. The calculation of tax depends on whether it is a long-term or short-term capital gain
do you get a return in bitcoin? The good news is that if you try to save some, and the price of bitcoin goes up, your salary could double. The bad news is that you'll pay income tax on wages and VAT on assets that hold the subsequent gains in bitcoin. However, it is best to record the actual value of legal tender when payment for services is received
if your salary is paid in the form of bitcoin, you may want to spend some in the form of bitcoin itself (for others who own bitcoin by any means). The expenditure of any bitcoin is equivalent to the sale of assets, and the gain or loss will occupy the holding period. So in order to find out the holding period, people have to know which bitcoin they are selling and when they receive a special bitcoin, which is almost impossible unless you use a new wallet for every transaction. A better way is to have a set of predefined rules for all bitcoin revenues and expenditures. Laura suggests the implementation of LIFO or FIFO accounting methods
if you give or accept bitcoin as a tip or gift, it is best to publish or ask for information about the cost base and date of digital currency. If this could be done, it would be easier to calculate capital gains. Otherwise, in the absence of information, people can always explain it in terms of income and get out of trouble. If you are donating to a registered charity, the digital currency unit income from the donation can be written off from the account, which is not taxed. Laura suggests using digital currency donations to rece taxes
when trading bitcoin, it is wise to keep a record of the fair market value on the date of the transaction. If a trading platform or transaction issues a 1099-b report, this will help record the profit and loss. These suggestions will come in handy for those who are already working on bitcoin and want to know how to track the gains and losses of their digital currency.

7. Bitcoin is not a recognized currency. Every country in the world does not recognize bitcoin. Bitcoin is completely virtual. There are risks in buying bitcoin, so it is recommended to buy it carefully.