How LLC Owners Save on Taxes in 2026

HOW-TO GUIDES LIBRARY

Tax Professional How-To Guides — 30 Step-by-Step Practitioner Guides

Step-by-step guides for every major tax procedure — IRS audits, entity setup, retirement plans, international reporting, and practice development. Updated for 2026.

30How-To Guides
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2026Updated

Tax professionals need clear, actionable procedures — not just rules. This library provides step-by-step guides for every major tax procedure, from responding to an IRS audit to setting up a Solo 401(k). Each guide includes the exact steps, deadlines, forms, and practitioner notes needed to execute correctly.

All procedures are updated for 2026 and consistent with current Circular 230 requirements.

Quick Reference Comparison

ProcedureTime RequiredKey DeadlineGoverning Authority
IRS Audit ResponseVaries by audit type30 days (correspondence), IDR deadline (field)Circular 230 §10.20
Amended Return (1040-X)3 years from filingWithin 3 years of original due dateIRC §6511
S-Corp Election (Form 2553)Any time for next yearMarch 15 (current year, if retroactive)IRC §1362
1031 ExchangeID: 45 days, Close: 180 daysFrom sale of relinquished propertyIRC §1031
FBAR FilingApril 15 (auto-extended to Oct 15)Annual, for accounts over $10,00031 USC §5314
Penalty Abatement (FTA)No deadlineAfter IRS assessmentIRC §6651
Solo 401(k) SetupDec 31 of tax yearFor current year contributionsIRC §401(k)

Source: IRS.gov, Rev. Proc. 2025-32, IRC. Updated for 2026 tax law.

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Professional Disclaimer

The information on this page is intended for licensed tax professionals (CPAs, EAs, and tax attorneys) and is provided for educational and research purposes only. Tax law is complex and fact-specific — all strategies discussed are subject to limitations, phase-outs, and conditions that may not apply to every client situation. Practitioners should independently verify all information against current IRS guidance, Treasury Regulations, and applicable state law before advising clients. This content does not constitute legal or tax advice.

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