Tax preparation reports what happened and meets filing obligations. Tax planning evaluates decisions before they happen and coordinates their implementation. A CPA or enrolled agent may provide either or both services; compare the actual scope, deliverables, and ongoing support rather than relying on a job title.
Updated September 4, 2026. Educational, not individualized tax advice. Examples are hypothetical, not client results.
Compare the work, not the title
| Question | Preparation scope | Planning scope |
|---|---|---|
| What is the starting point? | Completed activity, forms, and accounting records. | Expected income, upcoming decisions, existing arrangements, and prior returns. |
| What should you receive? | Agreed returns, filing instructions, and explanations of material return items. | Documented assumptions, alternatives, recommended actions, and implementation responsibilities. |
| When does the work happen? | During the filing cycle, with extensions and other support as scoped. | Before relevant decisions and deadlines, with follow-up agreed in the engagement. |
| What needs a separate scope check? | Projections, amended returns, notices, and planning. | Payroll, legal documents, retirement plan administration, bookkeeping, and implementation fees. |
A good preparer can identify planning questions. A planning engagement still needs accurate books and returns. Ask who owns each part of the work and how information moves between them.
When planning deserves a closer look
- You are moving from W-2 employment to contractor income.
- You are considering an entity election or changing owner compensation.
- You are buying or selling a rental property.
- You have equity compensation, multiple states, or a substantial change in income.
- You need retirement contributions coordinated with business cash flow and existing plans.
These are reasons to investigate, not proof that a strategy will produce savings. Begin with a tax strategist's scope of work and the records needed to evaluate your situation.
A worked example that separates a deduction from a tax reduction
Assume a married couple filing jointly has $300,000 of taxable ordinary income in 2026, after existing deductions. Assume an additional $20,000 deduction is legally available and usable this year. This illustration does not establish eligibility for any particular deduction.
| Item | Before | After |
|---|---|---|
| Taxable ordinary income | $300,000 | $280,000 |
| Federal ordinary income tax | $57,196 | $52,396 |
The illustrated tax reduction is $4,800: $20,000 multiplied by 24%, because the entire additional deduction falls within that bracket. The $20,000 deduction is not $20,000 of tax savings. These figures use IRS Revenue Procedure 2025-32, section 4.01.
The example excludes credits, capital gains, AMT, QBI effects, state taxes, and payroll taxes. If the deduction is a retirement contribution, the household must fund the contribution and future withdrawals may be taxable. If it accelerates depreciation, future deductions and recapture can change the long-term result.
Compare the modeled reduction with the quoted professional fees, other implementation costs, cash required, and future tax effects. Do not add overlapping deductions twice. A reliable ROI cannot be inferred from this illustration alone.
S-corporation salary is not an automatic savings formula
An S corporation must pay reasonable compensation to a shareholder-employee for services before making non-wage distributions. Wages are subject to employment taxes. Non-wage distributions generally are not, but the IRS can reclassify distributions as wages when compensation is inadequate. Increasing wages instead of distributions does not itself create an employment-tax saving. See the IRS explanation of S-corporation compensation.
Reasonable compensation depends on the work performed and supporting facts. It cannot be established by choosing a fixed percentage of profit. Use the reasonable salary guide to understand the documentation, then treat the S-corporation calculator as an illustration rather than a salary determination.
Questions to ask before engaging a firm
- Which decisions will you evaluate, and what records do you need?
- Will I receive a written explanation of assumptions, alternatives, deadlines, and responsibilities?
- Who handles payroll, elections, legal work, and retirement plan administration?
- Which return preparation and follow-up work are included?
- What changes the fee or requires a separate engagement?
Neither the cheapest return nor the largest advertised savings figure establishes value. Compare the work you actually need, the strength of its support, and the cost of delivering it.
What happens at Taxstra
The free initial consultation is a conversation about your situation, service fit, and scope. Detailed document review, eligibility analysis, and tax modeling follow engagement. Our tax planning service connects planning with tax preparation and implementation; the proposal sets the work and responsibilities for your situation.
Related reading: questions for a new accountant and transitioning to a new firm.
Primary sources
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About the Author
Bryan Martin
Taxstra is a modern CPA firm specializing in proactive tax strategy for high-income professionals, business owners, and real estate investors. We don't just file returns, we find opportunities others miss.


