> For the complete documentation index, see [llms.txt](https://solido-money.gitbook.io/solido/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://solido-money.gitbook.io/solido/cash-protocol/fee-model.md).

# Fee Model

**Fixed Upfront Fee**

Many borrowing protocols offer a variable borrowing Annual Percentage Rate (APR) determined by supply and demand. This can be quite inconvenient for users, as they need to constantly monitor their position to avoid liquidation. Recently, variable APRs have been known to increase quite drastically and suddenly.

With Solido Protocol, you can enjoy interest-free borrowing with a one-time fee (currently 5%) transparently shown on the UI when you mint the stablecoins.