What it means
IRR stands for internal rate of return, the single annual growth rate that would turn the cash you put in into the cash you got back, given the exact dates of every payment. Because private funds draw money in instalments and return it unevenly over many years, a simple profit percentage is not enough, and IRR is the standard way to compress that messy timeline into one number.
The word "net" is doing the heavy lifting. A private equity, venture or credit fund typically charges an annual management fee on committed capital plus carried interest, which is the manager's share of profits above a hurdle rate.
Net IRR is calculated on the cash flows as the investor experiences them, so all of that is already subtracted. For a business audience, this matters because net IRR is the number used to compare a fund against public markets, against other managers, and against simply keeping the cash.
Managers quote gross IRR in pitch material because it flatters them; a finance team reviewing an investment should always ask which one is on the page. In practice you calculate it from a dated list of cash flows: capital calls as negative amounts, distributions as positive amounts, and the current value of anything still held as a final positive amount.
Spreadsheet functions such as XIRR do the solving for you, because there is no clean algebraic answer when dates are irregular. The important nuance is that IRR rewards speed as well as size.
A fund that returns money quickly can post a high net IRR while producing less total profit than a slower fund, which is why investors read net IRR alongside a multiple such as MOIC or DPI. Early in a fund's life the net IRR is also usually negative, because fees are charged before any gains appear, a pattern known as the J-curve.
In practice
Real-world examples.
Example
A university endowment reviews two venture funds. Fund A reports a 28% gross IRR and a 19% net IRR; Fund B reports 24% gross and 20% net. The investment committee backs Fund B, because the lower fee load leaves more of the return with the endowment.
Example
A family office invests $5,000,000 in a property fund and, after four years of quarterly distributions and a final sale, has a net IRR of 9%. Compared with the 7% it could have earned in a listed property index over the same period, the committee judges the extra work and illiquidity just about worthwhile.
Example
A corporate treasurer is offered a co-investment alongside a buyout fund with no management fee and no carry. Because there is no fee drag, the gross and net IRR are the same, and the treasurer can compare the headline number directly with the company's cost of capital.
Think of it
“Net IRR is return after fees-what investors actually get.
Formula
Calculation
Net IRR is the discount rate r that makes the present value of all net cash flows equal zero. For the simple case of one investment and one exit, it reduces to: Net IRR = (Cash received / Cash invested) ^ (1 / Years) - 1.
An investor puts $10,000,000 into a fund on day one. Five years later the underlying assets are sold for $22,000,000, but after management fees and carried interest the investor receives $18,000,000.
Gross IRR = (22,000,000 / 10,000,000) ^ (1/5) - 1 = 2.2^0.2 - 1, which works out at 17.1% a year.
Net IRR = (18,000,000 / 10,000,000) ^ (1/5) - 1 = 1.8^0.2 - 1, which works out at 12.5% a year.
The fee drag is 17.1% - 12.5% = 4.6 percentage points a year, and in cash terms $22,000,000 - $18,000,000 = $4,000,000 of the gain went to the manager.Case study
Seen in the real world.
In this illustrative example, Harbourline Capital is a fictional mid-market buyout manager raising its third fund. Its marketing deck leads with a 26% IRR across the previous two funds, and several prospective investors take that as the return they would have earned.
A pension scheme's analyst asks for the net figures and gets them: after a 2% annual management fee on committed capital and 20% carried interest above an 8% hurdle, the net IRR across the two prior funds is 17%. The 9 percentage point gap is entirely fees, and it changes the comparison against the scheme's listed equity portfolio.
The scheme still invests, but negotiates a reduced fee on committed capital during the investment period in exchange for a larger cheque. Modelling that change on the previous fund's cash flows lifts the net IRR by roughly one percentage point, which on a $40,000,000 commitment is real money over a decade.
Watch out
Common mistakes.
- Comparing one manager's gross IRR with another manager's net IRR, which makes the first look better purely because of what has been subtracted.
- Treating net IRR as an achieved cash return when much of the value still sits in unsold holdings valued by the manager itself.
- Assuming a higher net IRR always means more profit, when a short, fast deal can beat a larger, slower one on IRR while returning far less cash.
Questions
People also ask.
Why is the net IRR negative in the first two years of a fund?
Fees and costs are charged from the start while investments have not yet been sold or written up, so early cash flows are all outgoing.
Does net IRR account for the money I committed but that was never called?
No, it is calculated on cash actually drawn, so uncalled commitments sitting in your bank account earning little are not penalised in the figure.
Which is more reliable, net IRR or a multiple?
They answer different questions, so investors use both: the multiple tells you how many dollars came back per dollar in, while net IRR tells you how fast.
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