Lawyer Preparation

Flat Fee vs Hourly Guide

Flat Fee vs Hourly: engagement letter, scope, rate schedule, invoices, and expense policy

By Wills and state-guides editor Published August 13, 2026 How we edit

General preparation information. A professional relationship begins only under the terms agreed with the lawyer or firm.

Legal and fiduciary fees may be hourly, flat, task-based, statutory, court-approved, or paid under another written arrangement.

Side-by-side comparison

Use the table to locate the controlling difference; then verify the governing document and state law for your facts.

Flat fee compared with Hourly fee
QuestionFlat feeHourly fee
Price basisDefined scope for a stated amountTime worked at stated rates
Best fitPredictable, clearly bounded workUncertain, disputed, or changing work
Main questionWhat is included, excluded, and considered extra?Who bills, in what increments, and against what estimate?
ChangesWritten change order or extra-service termsMore time generally increases fees
ExpensesMay be included or billed separatelyUsually addressed separately in the agreement
EvidenceWritten task list and completion termsTime entries, invoices, staffing, and budget updates

Build the meeting agenda

  • The scope, exclusions, staffing, expenses, deposits, billing intervals, and dispute process matter as much as the headline rate.

Bring evidence, not just recollections

  • engagement letter, scope, rate schedule, invoices, and expense policy
  • court petitions, consents, approvals, and time or task records where required

Scope, cost, and next steps

  • What work is included and excluded?
  • Who pays, when is approval required, and what can change the estimate?

Risks to pause on

  • Comparing only a flat number without scope can make a limited service appear cheaper than a complete engagement.

Licensing and court references