Glossary/Fundamentals

Cash Sweep

Also known as Excess cash flow sweep, Debt cash sweep

A cash sweep is a contractual or operational mechanism that directs available cash toward a predetermined use, commonly mandatory debt repayment. The definition of excess cash, permitted deductions, payment percentage, and timing is set by the governing agreement.

Editorially reviewed 2026-07-30

Why cash sweep matters

Cash sweeps can accelerate deleveraging and protect lenders by preventing cash from being distributed while debt remains outstanding. For equity holders, they reduce near-term discretionary cash but may lower interest cost and financial risk. Private-equity and project-finance models are especially sensitive to sweep terms. Headline free cash flow does not equal distributable cash when contractual waterfalls redirect it.

How it is applied

Analysts read the credit agreement and model the waterfall from operating cash through taxes, capital expenditure, working capital, permitted acquisitions, reserves, and voluntary repayments. A specified percentage of remaining excess cash is applied to eligible debt, often with step-downs as leverage falls. Forecasts should include prepayment premiums, revolving-credit interactions, restricted subsidiaries, covenant baskets, and the resulting change in interest expense.

Formula

Mandatory sweep = Sweep percentage × Contractual excess cash flow
Sweep percentage
Portion required to repay debt under the agreement
Contractual excess cash flow
Cash remaining after precisely defined permitted deductions

Portfolio example

A borrower generates $100 million operating cash, spends $35 million on permitted capital expenditure and $15 million on taxes and working capital, leaving $50 million contractual excess cash flow. A 50% sweep requires $25 million debt repayment. Equity cannot treat the full $50 million as available distribution, and lower debt reduces future interest expense.

How to interpret it

A high sweep percentage generally favors creditor protection and faster deleveraging, but only if the excess-cash definition is robust. Broad deductions and baskets can weaken it. Sweeps may step down after leverage targets, creating nonlinear equity cash flow. Voluntary repayment can sometimes reduce the obligation. Investors should distinguish cash retained on the balance sheet, cash distributed, and cash used to retire each debt tranche.

Limitations and common misconceptions

Contract language varies and model summaries can omit exceptions. Aggressive sweeps may restrict necessary investment or cause liquidity shortages. Cash can remain in entities outside the sweep, while acquisitions and permitted payments reduce the base. Forecast cash generation is uncertain and repayment changes interest and taxes. Legal review, covenant modeling, entity-level cash tracing, repayment sequencing, permitted-payment analysis, and comprehensive downside liquidity analysis are required before investing. Credit agreements define the sweep base, exclusions, permitted reinvestment, and percentage applied. Analysts should read those provisions directly because the same headline sweep percentage can produce very different mandatory repayments.

Sources and further reading