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Encyclopedia DeFi · Entry 154

Variable debt tokens: tracking a borrower’s growing obligation

AI-assisted research · separate automated verificationCorrections

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DeFi
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5 cited records
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Key facts

Key facts for Variable debt tokens: tracking a borrower’s growing obligation
FactDetailSource
MeaningThe balance represents current variable-rate debt in underlying-asset units.[1]
TransferOrdinary ERC-20 transfer and approve functionality is disabled.[1]
IndexScaled debt accounting uses the reserve’s variable borrowing index.[2]
01

A fixed borrowing event can produce a growing obligation

Borrowing 100 units creates debt accounting that can later represent more than 100 as interest accrues. The increase follows the reserve’s rate and index rules.

The amount needed to repay at a later block can differ from the amount originally borrowed. Use current debt data when preparing repayment.

02

Credit delegation is different from transferring a debt token

Aave exposes borrowing-delegation mechanisms separately from ordinary token transfer. Delegating borrowing power is an authorization decision under protocol rules, not a way to send an existing debt balance to an unsuspecting address.

Inspect the approved delegatee and allowance in the actual implementation. A non-transferable token can still participate in a system with powerful delegated permissions.

03

Debt and collateral can move in different units

A debt denominated in one asset can become harder to support if its value rises relative to the collateral or if accrued interest increases the obligation.

The debt-token balance is one input to risk calculations. Oracle prices, collateral thresholds and available liquidation mechanisms also matter.

Direct answers

Questions people ask

Can I get rid of a loan by transferring its debt token elsewhere?

Not through an ordinary token transfer. The cited variable-debt implementation disables that functionality; debt reduction follows the protocol’s repayment and liquidation rules.

Inspect the evidence

The answer and key facts have stable claim links. These records retain the scope and qualification when reused.

Aave variable-debt tokens record a borrower’s outstanding principal plus accrued variable-rate interest. Their accounting uses a debt index, and ordinary transfer and approval functions are disabled. They represent an obligation, not a freely transferable asset or a reward earned by the borrower.

Scope: DeFi · data through 2026-10-02. Verification: verified · 2026-10-02T18:15:18.493Z.

Link to this claim
Meaning: The balance represents current variable-rate debt in underlying-asset units.

Scope: DeFi · data through 2026-10-02. Verification: verified · 2026-10-02T18:15:18.493Z.

Link to this claim
Transfer: Ordinary ERC-20 transfer and approve functionality is disabled.

Scope: DeFi · data through 2026-10-02. Verification: verified · 2026-10-02T18:15:18.493Z.

Link to this claim
Index: Scaled debt accounting uses the reserve’s variable borrowing index.

Scope: DeFi · data through 2026-10-02. Verification: verified · 2026-10-02T18:15:18.493Z.

Link to this claim
Revision history
  1. — First publication after primary-source research and independent automated verification.

Source register

Sources and references

Retrieval dates and locators are recorded individually.
  1. TokenizationAave

    Supply receipt and nontransferable debt accounting using interest indexes.

    Locator: aToken; VariableDebtToken · Version / scope: Aave V3 documentation · Retrieved: 2026-10-02T17:03:44.686ZOpen source
  2. Aave V3 ReserveLogicAave

    Cumulative supply and borrow indexes update accounting over time.

    Locator: getNormalizedIncome; getNormalizedDebt; updateState · Version / scope: aave-v3-core v1.19.3 · Retrieved: 2026-10-02T17:03:44.467ZOpen source
  3. PoolAave

    Collateralization, available liquidity and liquidation operations.

    Locator: supply; withdraw; borrow; liquidationCall · Version / scope: Aave V3 documentation · Retrieved: 2026-10-02T17:03:44.834ZOpen source
  4. Aave Docs GlossaryAave

    Protocol glossary distinguishes APY including compounding from APR and defines lending terms.

    Locator: APY; Borrow Cap; Credit Delegation; Debt Ceiling · Retrieved: 2026-10-02T17:58:05.650ZOpen source
  5. ReserveAave

    Reserve LTV, liquidation threshold, borrow availability, caps and rate parameters.

    Locator: Key Reserve Parameters; Dynamic Parameters and Governance · Version / scope: Aave V3 documentation · Retrieved: 2026-10-02T17:03:44.647ZOpen source
How this article was made

Research and drafting use AI assistance. A separate automated review checks claims against primary sources; no external expert or named human review is implied. Publication, substantive editing, source retrieval and verification are recorded separately. This version was independently checked by an automated reviewer on 2 October 2026.

Editorial method and corrections

Degrees of Satoshi editorial project. “Variable debt tokens: tracking a borrower’s growing obligation.” Published 2026-10-02; updated 2026-10-02. https://degreesofsatoshi.com/encyclopedia/variable-debt-tokens/