Zero-Interest Crypto Loans: A Flow Analysis of the 0% Borrowing Promotions

The current landscape is defined by a wave of zero-interest borrowing offers, each with distinct mechanics and capital scales. MEXC's promotion is a targeted, time-bound campaign running from January 27 to February 27, 2026, cutting its standard 3.5% rate to 0% for USDT and USDC loans backed by BTC, ETH, SOL, and XRP collateral. This creates a clear, temporary incentive to deploy capital.

Beyond time-limited exchanges, structured platforms are enabling massive liquidity flows. Nexo's Zero-interest Credit (ZiC) has already facilitated over $140 million in liquidity since its launch, offering a fixed-term, non-liquidatable alternative for BTC and ETH holders. This represents a significant flow of capital into a predictable, cost-free borrowing channel.

Decentralized protocols are taking a different approach, focusing on permissionless access. Sovryn's Zero feature offers 0% interest loans with no fixed repayment period, requiring only a minimum 110% collateral ratio. It operates as a fully on-chain, non-custodial smart contract system, allowing users to borrow instantly against their Bitcoin without sign-up or credit checks.

The Capital Flow Mechanics and Risk

The promotions create a direct pipeline for capital deployment. Borrowed funds from MEXC's zero-interest offer can be used across spot, futures, and other in-house investment products. Similarly, Sovryn's Zero feature enables users to instantly borrow DLLR stablecoins to buy more bitcoin, trade, lend, or earn yield. This mechanics turns the borrowed capital into leveraged flow, amplifying its impact on trading volumes and market liquidity.

All these flows are built on self-managed collateral. Users must monitor their collateral ratios in real time. Despite the 0% interest, crypto volatility can trigger liquidations if the collateral value drops below required thresholds. This creates a systemic risk where sudden price swings can force a cascade of margin calls, potentially exacerbating market downturns.

The scale of this activity is underpinned by a rapidly expanding market. The global crypto lending platform market, which includes these promotional products, is projected to grow from $10.68 billion in 2025 to $25.06 billion by 2030. This indicates a massive pool of underlying capital seeking deployment. The promotions are simply new, low-cost channels drawing from that existing liquidity, accelerating the flow but not creating it from nothing.

Catalysts, Risks, and What to Watch

The immediate catalyst is the expiration of the MEXC promotion on February 27, 2026. As the standard 3.5% rate automatically resumes, a wave of capital withdrawal is likely. This creates a near-term liquidity test for the platform and the broader market, as borrowers may repay loans to avoid higher costs, potentially reducing leverage and trading volume.

The longer-term sustainability hinges on whether 0% offers become a permanent competitive feature. The market's projected growth to $25.06 billion by 2030 suggests ample room for innovation, but platforms will need to balance these promotions against their own funding costs and risk exposure. The success of Nexo's fixed-term ZiC product, which has already seen over $140 million in liquidity, indicates that structured, predictable zero-cost borrowing may be more sustainable than time-limited campaigns.

The primary risk remains sharp price volatility. All these flows are built on self-managed collateral, and a sudden market move can trigger mass liquidations. This creates a feedback loop where forced selling exacerbates price declines, potentially forcing more capital outflows and testing the resilience of the entire lending ecosystem.