#self-employment-tax
Self-employment tax rules, calculations, and strategies for business owners
Most wedding calligraphers charge $2.50–$6 per envelope, but the rate that pays is your own — hourly math, spoilage, rush tiers, and 15.3% self-employment tax.
Price custom woodwork from true costs — 15–25% material markup, overhead per billable hour, 10–20% profit — not a materials-times-three guess.
DC's 2026 Short-Term Rental Act would let renters host on Airbnb, but it isn't law yet. Budget a $99 license, $250K insurance, Schedule C and DC's D-30 tax.
On a $25,000 domain sale, investor treatment costs roughly $3,750 while dealer treatment can exceed $9,000 — how Section 1221, the nine-factor hobby test, and per-name basis records decide which you are.
A teen owes a tax return at just $400 of net self-employment income — no age minimum. How the 15.3% SE tax, the $1,000 estimated-tax tripwire, the $20,000 1099-K threshold, and a custodial Roth IRA fit together.
A married couple co-owning an unincorporated business is taxed as a partnership by default, but the qualified joint venture election lets each spouse file a separate Schedule C and Schedule SE instead — no Form 1065, and both spouses earn Social Security credits. Both spouses must materially participate, and businesses held in an LLC or corporation cannot use it.
Staying under 183 days in a country does not make you a non-resident anywhere. U.S. nomads still owe worldwide income tax, the 2026 Foreign Earned Income Exclusion caps at $132,900 and never covers the 15.3% self-employment tax, the tax-home test disqualifies perpetual travelers, and FBAR triggers at $10,000 aggregated across all foreign accounts.
Bug bounty payouts from HackerOne and Bugcrowd are ordinary income from the first dollar, and for 2026 platforms only issue 1099s at $2,000 per researcher — but the income is taxable with or without a form. Covers W-9 setup, the hobby-versus-business test that decides whether tooling is deductible, self-employment tax, and quarterly estimates.
The Capital Construction Fund lets commercial fishermen deposit fishing income before income tax under IRC Section 7518 and spend it tax-free on building or rebuilding a U.S. vessel — at the cost of reduced depreciable basis. This guide covers the 2-net-ton eligibility floor, the three internal accounts, qualified versus nonqualified withdrawals taxed at the top marginal rate plus interest, the 25-year clock, and the annual NOAA Form 34-82 filing.
AI data-labeling and RLHF gig income arrives with nothing withheld, so annotators owe 15.3 percent self-employment tax plus income tax on every payout and must pay quarterly estimates by the 2026 deadlines. This guide covers the 1099-NEC and 1099-K thresholds, the 90/100/110 percent safe-harbor rules, Schedule C deductions most annotators skip, and a 20-minute-a-month bookkeeping system for multi-platform payouts.
How small growers keep books that answer "which crop made money?" — Schedule F expense categories, why cash accounting fits a market garden, the March 1 / January 15 farmer estimated-tax rule, the farm optional method for Social Security credits, and per-enterprise cost allocation by bed-feet and labor hours.
From 1 April 2027 New Zealand raises its Non-Resident Contractors Tax exemption from $15,000 to $75,000 per 12-month period and tests it per payer rather than in aggregate. Here is how the 15% withholding works today, how the US–NZ treaty stops it at the source, and why 15.3% self-employment tax still applies with no totalization agreement in place.
