Fee Billing

This handles the operational mechanics of advisory fee billing, from designing tiered schedules through calculation, collection, and revenue recognition. Use it when you're building a billing engine, debugging proration logic for mid-period contributions and withdrawals, deciding between advance versus arrears billing, or figuring out household aggregation rules. It covers the GAAP revenue recognition treatment, compliance disclosure requirements for ADV Part 2A and ERISA 408(b)(2), and the practical difference between true tiered schedules (where each dollar is billed at its tier rate) versus breakpoint schedules (where the entire balance gets the highest tier rate reached). Good for migrating off spreadsheet billing or forecasting advisory revenue with any precision.

skills.sh installs: 671
GitHub stars: 224
last updated: Aug 21, 2026

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Install

$ npx -y skills add joellewis/finance_skills --skill fee-billing --agent claude-code

Installs into .claude/skills of the current project.

Files

Fee Billing

Core Concepts

1. Fee Schedule Structures

Advisory firms employ a range of fee structures, often combining several within a single practice.

Flat Fee (Fixed Dollar). A predetermined dollar amount charged per period regardless of account size. Common for financial planning engagements or retainer-based advice. Straightforward to bill but disconnected from asset growth.

AUM-Based (Percentage of Assets). The most prevalent model for registered investment advisers. A single percentage (e.g., 1.00%) is applied to the market value of managed assets. Simple to communicate but can become expensive for large portfolios and cheap for small ones.

Tiered / Breakpoint (Declining Rate). A graduated schedule where successive tiers of assets are billed at progressively lower rates. For example: