If you've ever compared a manager's advertised return to the number on your own statement and found a gap, the fee methodology is usually why. Performance can be reported gross of fees or net of fees (or both), and the two numbers can diverge more than people expect, especially once tiered fee schedules enter the picture.
There are two standard ways to present investment performance. Gross-of-fees return reflects the portfolio's performance before any management fees are deducted. Net-of-fees return reflects what the investor kept after fees came out. Neither is wrong. They just answer different questions, and the fee schedule itself determines how complicated that second number gets to calculate.
Gross-of-fees return answers this question: how did the investment strategy perform on its own merits, independent of what any client paid to access it?
Because gross returns strip out fee drag, they're the cleanest way to compare one manager's raw investment skill to another's. This is why gross performance is the standard for composite track records used in marketing and manager selection. It shows what the strategy did, not what any one client's specific fee arrangement did to that number.
Net-of-fees return answers a different question: what did the investor earn, after the cost of accessing the strategy came out?
This is the number that matters for an individual client's actual wealth outcome. Two clients invested in the exact same strategy, with the exact same gross return, can have meaningfully different net returns if they're on different fee schedules. This is where tiered fee schedules start to complicate things.
A flat fee schedule is easy. If every dollar in the account is charged the same rate, calculating net-of-fees return is a straightforward deduction. Tiered fee schedules are where the "which fee rate applies" problem shows up.
Under a typical tiered structure, the first $1,000,000 might be charged at 1.00%, the next $4,000,000 at 0.75%, and anything above $5,000,000 at 0.50%. The question that creates operational and reporting friction is this: when calculating a net-of-fees return, what effective rate do you actually apply to the account?
There are a few common approaches, and they don't produce the same answer:
The blended, or weighted average, effective rate calculates a single rate based on where the account's actual balance falls across the tiers and applies that blended rate uniformly. This is the most common approach and the easiest to explain to a client, but it requires recalculating the effective rate every time the account crosses a tier threshold, which for a growing or actively funded account can mean frequent updates.
The marginal rate approach applies each tier's rate only to the dollars that sit within that tier, similar to how a progressive tax bracket works. This is more precise but harder to communicate simply, and it requires more granular recordkeeping to track exactly how much of the balance sits in each tier at any given valuation date.
The highest applicable tier rate, sometimes used as a conservative or contractually simplified approach, applies a single rate based on the top tier the account has reached, regardless of how the balance is distributed across lower tiers. This tends to overstate the fee drag relative to the other two methods.
The differences between these approaches aren't cosmetic. On a $10,000,000 account under the schedule above, the blended effective rate comes out to roughly 0.675%, while the highest-tier approach would apply 0.50% to the entire balance, understating the fee relative to what the blended calculation shows, or overstating it depending on which direction the comparison runs. On a large account, that difference in effective rate translates directly into a difference in reported net return, often enough to matter for benchmark comparison or peer group ranking.
This becomes even more consequential when account balances move across a tier boundary mid-period, when household aggregation is used to determine tier placement across multiple related accounts, or when a fee schedule changes contractually partway through a reporting period. Each of these scenarios requires a documented, consistent methodology, or the net-of-fees number becomes unreliable and inconsistent across reporting periods.
GIPS requires firms to disclose whether performance is presented gross or net of fees and requires consistency in how net returns are calculated across a composite. A firm can't apply one fee methodology to some accounts in a composite and a different methodology to others and expect the resulting composite net return to be meaningful or defensible under examination.
This is also why model fee disclosures exist. When a composite includes accounts on different actual fee schedules, firms often disclose net-of-fees performance using a model or representative fee, so that prospective clients can see what a hypothetical account at a stated fee rate would have earned, rather than a blended number that reflects an arbitrary mix of the firm's actual client base.
This is ultimately a governance question, and it needs a documented, defensible answer before a client, auditor, or regulator asks for one.
Firms need a clear policy on which fee calculation methodology applies to which report type, and that policy needs to be applied consistently rather than selected case by case. They need a defined process for what happens when an account crosses a tier threshold mid-period, including how frequently the effective rate gets recalculated. They need clarity on how tier placement is determined when multiple accounts are householded together for fee purposes, since the aggregation rule itself can shift which tier applies. And they need a clear escalation path for what happens when a client disputes the calculated net return, since fee calculation disputes are one of the most common sources of client service friction in performance reporting.
Firms that handle this well document the methodology once, apply it consistently, and can walk a client or examiner through exactly how a net return was derived, tier by tier, without hesitation. Firms that handle it poorly end up reconciling fee calculations after the fact, account by account, usually after a client has already noticed the discrepancy.
Gross return tells you how the strategy performed. Net return tells you what the investor kept. That second number is only as reliable as the fee methodology behind it, and tiered fee schedules are exactly where that methodology gets tested. The strongest reporting frameworks don't just pick a calculation approach. They document it, apply it consistently, and can explain it clearly when someone asks which rate is applied.