Our Internal Rate of Return (IRR) calculator helps you determine the profitability of investments or projects.
Page written by Ian Hawkins. Last reviewed on May 15, 2025. Next review due April 6, 2026.
This calculator is intended for illustration purposes only and exact payment terms should be agreed with a lender before taking out a loan.
IRR, or Internal Rate of Return, is a financial metric used to assess the profitability of an investment. It represents the annualized rate of return at which the net present value (NPV) of all cash flows from the investment equals zero. In simpler terms, IRR is the rate at which an investment breaks even, considering both the size and timing of cash flows.
IRR is commonly used by investors and businesses to assess the attractiveness of investment opportunities, compare competing projects and make informed decisions about capital allocation. It provides a standardized method for evaluating the potential returns of different investments, taking into account the time value of money.
One limitation is that it assumes reinvestment of cash flows at the calculated IRR, which may not always be feasible. Additionally, IRR may produce multiple values or no real solution in certain cases, making interpretation challenging. As with any financial metric, it is important to consider IRR alongside other factors when making investment decisions.
Net Present Value (NPV) is another key financial metric used in investment analysis. It represents the difference between the present value of cash inflows and the present value of cash outflows over a given time period. A positive NPV indicates that the investment is expected to generate profit, while a negative NPV suggests potential losses.
We work with world class partners to help us support businesses with finance
Our offices:
Disclaimer: Swoop Finance helps UK firms access business finance, working directly with businesses and their trusted advisors. We are a credit broker and do not provide loans or other finance products ourselves. We can introduce you to a panel of lenders, equity funds and grant agencies. Whichever lender you choose we may receive commission from them (either a fixed fee of fixed % of the amount you receive) and different lenders pay different rates. For certain lenders, we do have influence over the interest rate, and this can impact the amount you pay under the agreement. All finance and quotes are subject to status and income. Applicants must be aged 18 and over and terms and conditions apply. Guarantees and Indemnities may be required. Swoop Finance can introduce applicants to a number of providers based on the applicants’ circumstances and creditworthiness. Swoop Finance Limited is registered with the Financial Conduct Authority as an Account Information Services Provider (reference number 833145). Swoop Finance Limited is authorised as a credit broker under FCA registration number 936513. If you feel you have a complaint, please read our complaints section highlighted above and also contained within our terms and conditions. Swoop Finance Ltd is registered with Companies House (company number 11163382, registered address The Stable Yard, Vicarage Road, Stony Stratford, Milton Keynes MK11 1BN). VAT number: 300080279
UK
IRE
AU
CA
US
ZA
yet? Register here!