Stablecoins are digital assets designed to maintain a stable value relative to a reference asset — typically the US dollar — through reserve backing, crypto collateralization, or algorithmic supply adjustment. Stablecoin knowledge is a core domain for finance teams because stablecoins account for over 70% of on-chain transaction volume (according to Chainalysis 2024 Geography of Cryptocurrency Report) and appear in nearly every crypto subledger data feed as trading pairs, payment instruments, and treasury holdings.
Three stablecoin categories exist in practice: fiat-backed, crypto-collateralized, and algorithmic. Each category carries distinct implications for accounting classification, fair value measurement, treasury policy, and regulatory compliance. The combined stablecoin market capitalization exceeded $210 billion as of March 2026, with Tether (USDT) and USD Coin (USDC) representing approximately 85% of the total supply.
What Are Stablecoins and How Do They Maintain Their Peg?
Stablecoins are digital assets designed to maintain a stable value relative to a reference asset — typically the US dollar — through one of three peg mechanisms: fiat reserve backing (USDT, USDC), crypto over-collateralization (DAI), or algorithmic supply adjustment (FRAX). Stablecoin classification is a critical domain within crypto fundamentals for finance teams because the peg mechanism directly affects accounting treatment and balance sheet exposure.
The peg mechanism determines how the stablecoin maintains price stability. Fiat-backed stablecoins hold reserves of cash, US Treasury bills, and commercial paper in custodial accounts — the issuer redeems tokens 1:1 for the underlying fiat currency. Crypto-collateralized stablecoins lock cryptocurrency in smart contracts at collateral ratios of 150-200%, creating a buffer against price volatility. Algorithmic stablecoins expand or contract token supply programmatically based on market demand.
The peg mechanism also determines the risk profile. Fiat-backed stablecoins carry issuer counterparty risk and reserve composition risk. Crypto-collateralized stablecoins carry liquidation risk during rapid market downturns. Algorithmic stablecoins carry the highest risk — the TerraUST collapse in May 2022 demonstrated that algorithmic pegs fail catastrophically under sustained selling pressure.
What Are the Main Types of Stablecoins?
The 3 main types of stablecoins are fiat-backed, crypto-collateralized, and algorithmic — each using a different mechanism to maintain price parity with the reference asset.
Fiat-backed stablecoins represent the lowest-risk category for treasury operations due to direct fiat redemption rights. Crypto-collateralized stablecoins introduce smart contract and liquidation risk but eliminate issuer counterparty risk through decentralized governance. Algorithmic stablecoins carry the highest risk profile and receive heightened regulatory scrutiny following the TerraUST collapse. The stablecoin type determines the data source, reserve verification method, and risk disclosure — 3 of the 9 domains covered in crypto fundamentals for finance teams.
Are Stablecoins Cash Equivalents Under Accounting Standards?
Stablecoins do not qualify as cash equivalents under most accounting frameworks — a classification that directly affects balance sheet presentation, cash flow statement classification, and financial ratio calculations.
Cash equivalents under IAS 7 and US GAAP are short-term, highly liquid investments that are readily convertible to known amounts of cash and subject to an insignificant risk of changes in value. The investment must have a maturity of 3 months or less from the date of acquisition.
FASB ASU 2023-08 classifies in-scope crypto assets — including stablecoins meeting the standard’s criteria — at fair value with changes through net income. The standard applies to fungible, intangible digital assets recorded on a cryptographically secured distributed ledger. Fiat-backed stablecoins such as USDC and USDT are excluded from ASU 2023-08 scope because the holder has a contractual right to redeem the token for underlying fiat currency reserves.
The IAS 7 cash equivalent test requires insignificant risk of value change — a criterion most stablecoins fail to satisfy. USDC temporarily traded at $0.87 in March 2023 when Silicon Valley Bank (SVB) held $3.3 billion of Circle’s reserves. USDT has experienced multiple brief de-peg events. The de-peg risk, combined with issuer insolvency risk and reserve composition opacity, prevents stablecoins from meeting the “insignificant risk” threshold.
The classification decision affects 3 financial statement areas:
| Area | Cash Equivalent Treatment | Digital Asset Treatment |
|---|---|---|
| Balance sheet | Current assets — cash and cash equivalents | Current assets — digital asset holdings |
| Cash flow statement | Operating/financing cash flows | Investing activities (purchase/sale of digital assets) |
| Financial ratios | Included in quick ratio, current ratio | Excluded from cash-based ratios |
Finance teams holding stablecoins for operational purposes — vendor payments, payroll, or intercompany settlement — face the classification gap: stablecoins function like cash operationally but receive different accounting treatment. The classification decision requires documentation in the organization’s accounting policy memo.
How Are Stablecoin Transactions Recorded in Accounting?
Stablecoin transactions are recorded using the same journal entry patterns as other crypto assets — acquisition at fair market value on the date of receipt, disposal at the difference between proceeds and cost basis, and periodic fair value adjustment under FASB ASU 2023-08. The crypto subledger processes stablecoin transactions through the same categorization pipeline as non-stable crypto assets, applying cost basis tracking and lot-level identification to each stablecoin position.
Four common stablecoin transaction scenarios exist for finance teams, listed below.
Scenario 1: Receiving Stablecoins as Payment
| Account | Debit | Credit |
|---|---|---|
| Digital Asset Holdings — USDC | $50,000 | — |
| Revenue — Crypto Payments | — | $50,000 |
The revenue recognition occurs at the fair market value on the date of receipt. The USDC cost basis equals $50,000. Subsequent fair value changes — including minor de-peg fluctuations — flow through net income under FASB ASU 2023-08.
Scenario 2: Converting Fiat to Stablecoins
The conversion of fiat currency to stablecoins on a centralized exchange creates an acquisition event. The cost basis equals the fiat amount plus any exchange fees and network fees.
Scenario 3: Stablecoin-to-Stablecoin Swap
A swap from one stablecoin to another (USDT → USDC) constitutes a disposal of the first asset and acquisition of the second — triggering a realized gain or loss calculation on the disposed stablecoin.
Scenario 4: De-Peg Fair Value Adjustment
| Account | Debit | Credit |
|---|---|---|
| Unrealized Loss on Digital Assets | $13,000 | — |
| Digital Asset Holdings — USDC | — | $13,000 |
The USDC peg recovered to $1.00 within 72 hours after the Federal Reserve announced the Bank Term Funding Program (BTFP). The recovery required a reversal entry restoring the fair value to $100,000.
What Risks Do Stablecoins Present for Treasury Operations?
Stablecoins present 4 primary risks for treasury operations: de-peg risk, issuer insolvency risk, reserve composition opacity, and regulatory risk.
Pros
- Near-instant settlement (seconds vs 1-3 business days for bank wires)
- 24/7 availability — no banking hours, weekends, or holiday restrictions
- Programmable payments via smart contracts with automated execution
- Cross-border transfers without correspondent banking fees
Cons
- De-peg risk — TerraUST collapsed from $1.00 to $0.02 in May 2022
- Issuer insolvency risk — reserves held at third-party institutions
- Reserve composition opacity — not all issuers provide full attestation
- Evolving regulatory requirements under MiCA, DAC8, and jurisdiction-specific frameworks
De-Peg Risk
De-peg risk is the probability that a stablecoin trades below its target value. The TerraUST collapse destroyed approximately $40 billion in market value within 5 days. USDC traded at $0.87 during the SVB crisis. USDT has experienced brief deviations to $0.97-0.98 during periods of market stress.
Regulatory Risk
Reserve Composition Risk
Reserve composition risk refers to the quality and liquidity of assets backing a fiat-backed stablecoin. USDC reserves — primarily US Treasury bills and overnight reverse repurchase agreements — represent a lower-risk profile than reserves containing commercial paper, secured loans, or corporate bonds. The reserve composition directly affects the stablecoin’s ability to honor 1:1 redemptions during high-volume withdrawal periods.
Treasury teams evaluate stablecoin suitability based on 5 criteria: reserve attestation frequency, reserve composition quality, issuer regulatory status, historical peg stability, and on-chain liquidity depth across exchanges and DEX pools. The evaluation informs the organization’s stablecoin policy — a component of the broader treasury management framework.