A 2026 guide to deducting business travel on Schedule C — covering the IRS tax home rule, the $178 CONUS per diem, 50% meal limits, 75% international business-day threshold, and the documentation habits that survive an audit.
A tax extension buys six months to file, not to pay. This guide explains exactly how to file Form 4868 (individuals) and Form 7004 (businesses), how to estimate a good-faith payment, and the state-level traps that cost filers real money.
A Substitute for Return is a 1040 the IRS files for non-filers using only third-party income data—no deductions, credits, or cost basis. This guide walks through the CP59, CP2566, and 90-day CP3219N sequence and the exact steps to replace an SFR with an accurate original return.
The IRS applies a two-part test to personal appearance expenses: the item must be required by your work and unsuitable for everyday use. Most suits, makeup, haircuts, and gym memberships fail. This guide details what qualifies, with case law including Pevsner v. Commissioner and Hamper v. Commissioner.
Schedule SE calculates the 15.3% self-employment tax (Social Security + Medicare) owed by anyone with $400 or more in net self-employment earnings. This guide walks through the 2026 wage base ($184,500), the 92.35% adjustment, the 50% above-the-line deduction, and the safe-harbor rules that prevent quarterly underpayment penalties.
Self-employed professionals can deduct work-related education that maintains or improves current job skills, but classes that qualify you for a new trade fail the IRS test under Topic 513. Here is how to apply the rule, document each expense, and report it correctly on Schedule C in 2026.
Self-employed filers can deduct 100% of qualifying health insurance premiums above-the-line via Form 7206 and Schedule 1 line 17, provided the business is profitable and neither spouse had access to subsidized employer coverage. The guide covers S corporation W-2 requirements, ACA marketplace subsidy circular calculations, age-based long-term care caps, and the five most common errors that trigger IRS disallowance.
A 2026 guide to Schedule C deductions for 1099 real estate agents, covering the 72.5-cent mileage rate, home office rules, marketing, dues, the 20% QBI deduction, and the write-offs most agents miss.
Self-employed workers can deduct home office expenses on Form 8829, but millions miss it each year. Learn the exclusive-use test, how to calculate your business-use percentage, when to claim depreciation, and which method—simplified or regular—yields a larger deduction.
The QBI deduction lets pass-through business owners deduct up to 20% of qualified business income—Form 8995 is how you claim it. Covers who qualifies, income thresholds, SSTB rules, calculation examples, and 2026 permanent-status changes.
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