One-Time Financial Plan: What It Covers, What It Costs, and When to Get One

Not investment or tax advice — your situation varies. This is a framework for evaluating whether a project-based financial plan fits your needs.

A one-time financial plan is a defined-scope, flat-fee engagement with a fee-only fiduciary planner that produces a written plan document — no ongoing relationship required. You pay a fixed fee, provide your financial data, go through one or two planning meetings, and leave with a comprehensive written roadmap you can implement yourself or with other professionals.

It's also called a project-based financial plan, comprehensive one-time plan, or standalone financial plan. The name varies by advisor; the structure is the same: defined deliverable, fixed price, no open-ended commitment.

What a one-time financial plan actually includes

A well-executed one-time plan is not a brief consultation. It requires significant data gathering and analysis before the delivery meeting. A typical engagement covers:

• Net worth snapshot: complete inventory of assets, liabilities, and account titling — including non-investable assets like real estate, business equity, and deferred compensation
• Retirement income projections: Monte Carlo or deterministic modeling of portfolio survival at different spending levels, Social Security timing analysis, withdrawal sequencing across taxable, tax-deferred, and Roth accounts
• Tax planning roadmap: Roth conversion opportunities, capital gains harvesting windows, QBI deduction eligibility for business owners, bracket management strategy through retirement
• Insurance gap analysis: life insurance need calculation, disability coverage review, long-term care exposure, umbrella liability adequacy
• Estate planning review: beneficiary designation audit, trust structure recommendations, charitable giving options — with flagged action items for your estate attorney
• Investment policy review: asset allocation analysis, expense ratio audit, account placement efficiency (which assets belong in Roth vs. traditional vs. taxable)
• Cash flow and savings optimization: contribution prioritization across account types, debt payoff sequencing, college funding if applicable

The deliverable is a written document — typically 30–60 pages — organized as actionable recommendations, not a generic overview. Each section should have a "here's what you have, here's the gap, here's the recommended action."

One-time plan vs. hourly vs. annual retainer

The choice depends on your situation. A one-time plan fits best when: your finances are relatively stable but you've never had a comprehensive plan, you're about to make a major irreversible decision (retirement date, large Roth conversion, business sale), or you're a self-directed investor who manages your own portfolio and wants an outside review. See the hourly vs. project comparison for a deeper breakdown of when hourly makes more sense than a full plan.

If your situation changes frequently — growing business income, complex equity compensation, annual tax planning needs — an annual retainer with a fee-only planner provides ongoing access that a one-time plan doesn't.

When a one-time financial plan makes the most sense

These are the situations where people most frequently benefit from a project-based engagement:

Pre-retirement (3–5 years out)

The five years before retirement are when the most consequential planning decisions stack up: Social Security timing, Medicare enrollment, Roth conversion windows before RMD age (73 for those born 1951–1959; 75 for 1960+),¹ IRMAA cliff awareness, pension vs. lump-sum analysis if applicable, and sequence-of-returns risk. These decisions are largely irreversible once made. A comprehensive one-time plan at this stage returns its cost many times over.

Receiving an inheritance or large lump sum

Inherited assets introduce immediate decisions: how to invest a large lump sum (lump sum vs. dollar-cost averaging), whether an inherited IRA triggers annual RMDs under post-death RMD rules,² and how the new assets interact with your existing estate and tax picture. A one-time plan is well-suited to this: defined trigger event, defined set of decisions to make, finite planning horizon.

Business sale or liquidity event

A business exit generates a large taxable event and replaces ongoing income with investable assets. The planning needs are concentrated: structuring the sale for tax efficiency, managing capital gains, deploying proceeds, and rebuilding an income strategy. This is high-stakes, finite-duration work — exactly what project-based planning is designed for.

Stock option or RSU vesting decision

Tech and executive employees with significant unvested equity frequently need a one-time plan when options are about to expire or RSUs are vesting at scale. The analysis covers ordinary income vs. capital gains treatment, ISO AMT exposure, exercise timing, and integration with existing portfolio concentration. See the DIY investor guide for how advice-only planners handle concentrated equity positions.

Divorce or major asset split

The financial planning needs during and immediately after divorce are acute and time-sensitive: QDRO structuring for retirement account division, housing decision analysis (keep the house or sell?), updated beneficiary designations across every account, and rebuilding a financial plan as a single filer. A project-based plan through a fee-only CDFA (Certified Divorce Financial Analyst) or CFP handles this comprehensively without ongoing engagement if your situation stabilizes post-divorce.

First time getting a professional financial review

A significant segment of DIY investors have never had an independent review of their overall financial picture. They manage their own portfolios competently but have no formal retirement income plan, may have insurance gaps, and have never had an outside view on whether their strategy is internally consistent. A one-time plan provides the professional validation and gap analysis without requiring ongoing engagement or moving assets to a new manager.

What a one-time plan costs

Project-based fees vary by advisor experience, firm, and plan complexity. Typical ranges in 2026:

• Basic comprehensive plan: $2,000–$4,000. Net worth review, retirement projections, basic tax strategy, insurance gap check. Appropriate for simpler situations (W-2 income, 2–3 investment accounts, no business ownership).
• Standard comprehensive plan: $4,000–$7,500. Adds complexity — business ownership, equity compensation, rental real estate, pre-retirement optimization, estate planning coordination.
• Complex plan: $7,500–$10,000+. Multi-entity business, large estate, cross-border considerations, multi-generational planning, deferred compensation analysis.

Compare this to the ongoing cost of a 1% AUM advisor at different portfolio sizes:

• $1M portfolio: $10,000–$13,000/year ongoing, every year
• $3M portfolio: $24,000–$36,000/year ongoing
• $5M portfolio: $40,000–$65,000/year ongoing

A one-time plan costing $5,000 costs less than one month of a $3M AUM relationship. Use the AUM vs. flat-fee cost calculator to run the math for your asset level. And see the full financial advisor cost breakdown for a complete comparison across engagement models.

How the process works

A typical one-time plan engagement runs 4–8 weeks from initial contact to plan delivery:

1. Intake questionnaire: You complete a detailed financial questionnaire — accounts, income, expenses, insurance policies, estate documents, goals, and concerns. The more thorough your data, the more useful the plan.
2. Data analysis: The planner reviews your complete picture, runs projections, and identifies gaps. This is where most of the work happens — expect a week or more for a thorough plan.
3. Draft delivery: You receive a draft written plan for review, typically 30–60 pages organized by planning area.
4. Delivery meeting: A 60–90 minute meeting (in-person or virtual) to walk through the plan, answer questions, and clarify recommendations. Some planners include a follow-up session in the project scope.
5. Final plan document: Updated version incorporating anything discussed in the delivery meeting, plus an action checklist organized by priority and timeline.

Questions to ask before engaging

• "What's included in the scope — and what's excluded?" — understand exactly what planning areas the fee covers and which would require additional billing
• "What is the written deliverable — can I see a sample table of contents?" — a well-defined deliverable indicates a well-run process
• "How many meetings are included?" — most one-time plans include one or two meetings; additional consultations should be scoped clearly
• "Do you provide implementation support, or does the plan end at delivery?" — some planners will help you execute (open accounts, initiate transfers, coordinate with your CPA or attorney) for an additional fee; others deliver the plan and leave execution to you
• "Will you have any follow-up access if I have questions after delivery?" — 30-day or 60-day follow-up access is common for questions that arise during implementation
• "Are you fee-only?" — verify using Form ADV at adviserinfo.sec.gov

See the complete 20-question financial advisor screening list for the full vetting process.

Where to find advisors who offer one-time plans

Garrett Planning Network

The network most explicitly focused on project-based and hourly fee-only planning. All Garrett advisors are fee-only fiduciaries; many specifically offer one-time comprehensive plans in addition to hourly work. Search at garrettplanningnetwork.com.³

XY Planning Network

Many XYPN advisors offer one-time plans alongside retainer and subscription models, particularly for younger and accumulation-phase clients. Search by specialty at xyplanningnetwork.com.⁴

NAPFA

Full NAPFA membership requires fee-only status and CFP® credential. Not all NAPFA members offer project-based plans — many focus on retainer relationships — but the directory allows you to search by service type. Search at napfa.org.⁵

How to screen the search results

When you contact an advisor from any of these directories, confirm upfront:

• They offer a one-time/project-based engagement model (not just retainer)
• They provide a written plan document as the deliverable
• Their fee for your situation's complexity falls within the range you expect
• They have no revenue sources other than direct client fees (verify on Form ADV)

See the detailed guide to finding a flat-fee or fee-only advisor for a full walkthrough of the search and vetting process.

Sources

1. IRS / SECURE 2.0 Act of 2022 — Required Minimum Distributions: RMD age 73 for individuals born 1951–1959; age 75 for those born 1960 or later. Effective for distributions beginning after December 31, 2022. Verified April 2026.
2. IRS T.D. 10001 (July 2024) — finalized inherited IRA regulations requiring annual RMDs for non-spouse designated beneficiaries when the original account owner had passed their required beginning date. Applies to deaths on or after January 1, 2020.
3. Garrett Planning Network — Find a Fee-Only Hourly Advisor: network of fee-only fiduciary planners specializing in hourly and project-based engagements.
4. XY Planning Network — Find a Fee-Only Financial Advisor: fee-only fiduciary advisor network; many members offer one-time and project-based planning alongside retainer models.
5. NAPFA — Find a NAPFA Member: fee-only fiduciary advisors; membership requires CFP® designation and fee-only status verification.

Values and citations verified as of April 2026. This page is for informational purposes only and does not constitute financial, tax, or legal advice. FlatFeeAdvisorMatch is a referral service, not a licensed advisory firm. We may receive compensation from professionals in our network.