Stablecoin vs. Bitcoin: Key Differences Explained

Wondering whether to start with stablecoins or Bitcoin? Bitcoin remains the most widely recognized digital asset, while stablecoins offer a different approach to value, risk, and usability.

In this guide, we break down the key differences between stablecoins and Bitcoin, including price stability, decentralization, and use cases, to help you decide which one is right for you.

Stablecoin vs. Bitcoin overview

Bitcoin launched in 2009 as the world's first cryptocurrency, often described as ‘digital gold’. It was designed to be a peer-to-peer electronic cash system, focusing on security and decentralization. It has evolved into a popular investment asset known for its long-term appreciation potential due to its economic structure and limited supply.

Five years later, BitUSD launched as the first of many stablecoins. Stablecoins are a form of cryptocurrency backed by reserves of cash or Treasuries, with their price pegged 1:1 to a fiat currency. This framework provides price stability, allowing stablecoins to be seen as a more reliable digital currency.

Key differences between stablecoin and Bitcoin

To help narrow down the decision, here are the key differences between Bitcoin and stablecoins:

Price stability or volatility

Stablecoins, by design, maintain a 1:1 peg with fiat currency or Treasuries, which are held in reserves by the issuers. This helps keep their value relatively stable and predictable.

Bitcoin, on the other hand, is a more volatile cryptocurrency. It has experienced dramatic price swings over the years. These fluctuations are often influenced by market sentiment, regulation, and economic and geopolitical factors.

As such, stablecoins are a much more stable form of currency than Bitcoin, but they lack the benefits that come with Bitcoin’s changing value, such as price appreciation. While Bitcoin offers significant upside potential, it also carries substantial downside risk.

Decentralization

Bitcoin was created to be a fully decentralized network. It achieves this through a Proof-of-Work (PoW) consensus mechanism consisting of globally distributed miners who manage the network. Its value is solely driven by market supply and demand, meaning it is not tied to fiat currency.

In contrast, most major stablecoins are centrally issued and managed, with a select few issuers controlling the funds. They manage the reserves that support the stablecoin’s value, and investors trust that issuers hold sufficient liquidity and collateral, should they need to cash out.

Tokenization

Stablecoins have a dynamic supply, which is dictated by demand: when more stablecoins are bought, more are created, and when those users want their cash back, the tokens are burned.

Bitcoin, however, has a fixed supply of 21 million BTC. New coins enter circulation to reward miners for their work, but to keep control of supply, the rewards are halved every 210,000 blocks. Once all 21 million BTC have been mined (estimated to occur around 2140), miners will rely solely on transaction fees for rewards.

Use cases

Bitcoin and stablecoins serve very different purposes. Stablecoins are often used as a digital cash equivalent, offering faster and lower-cost transactions than traditional banking systems. They are particularly useful for cross-border payments, B2B transactions, and payroll, while also playing a major role in decentralized finance (DeFi) applications such as lending, borrowing, and yield farming.

Bitcoin is often viewed as a long-term store of value and speculative investment, supported by a large community of holders who believe in its potential. Despite its volatility, many investors maintain long-term positions in Bitcoin as a potential hedge against the devaluation of fiat currency. It is also commonly used to diversify portfolios beyond traditional assets, such as stocks and bonds, and can serve as collateral for crypto-backed loans.

How are they regulated?

In recent years, the U.S. has seen continued development in cryptocurrency regulation. They have proposed and advanced legislation, such as the GENIUS Act, to regulate stablecoins. This mandates that they are backed 1:1 by cash or Treasuries, and reserves are held by compliant and audited issuers, to ensure that investors can redeem their fiat currency at any time. This act also strengthens the connection between stablecoins and traditional finance by making them easier for banks and businesses to use legally.

Bitcoin has been classified as a commodity in the U.S. since 2015, which helped shape the broader regulatory treatment of cryptocurrencies. This regulation confirmed Bitcoin’s long-term legitimacy, allowing it to develop rapidly, increasingly be considered for institutional adoption and integration into traditional finance, and to create more financial products (e.g., Bitcoin ETFs).

Which should you choose?

As discussed, Bitcoin and stablecoins serve very different purposes, so the right choice ultimately depends on your financial goals and risk tolerance.

If you’re looking for a digital asset with relatively stable value that can be used for faster, lower-cost transactions and everyday payments, a stablecoin may be the better fit.

However, if you’re looking to further diversify your portfolio with an asset that offers long-term appreciation potential and a hedge against fiat currency devaluation, Bitcoin may be worth considering. Just remember, Bitcoin is significantly more volatile than stablecoins and does not have the same 1:1 backing by reserves. As with any investment, it’s important to do your own research and never invest more than you can afford to lose.

Don’t forget the tax bill

Both Bitcoin and stablecoins are treated as taxable assets in the U.S. and are both subject to income and capital gains tax.

If you’re investing in either, ensure you have a simple solution to your crypto taxes. By uploading your read-only transaction data to Koinly, it can calculate your Bitcoin or stablecoin taxes and generate specialized reports to file with your tax returns.