Navigate Form 1040 with confidence. From filing status through deductions and credits — a complete walkthrough built from IRS primary sources.
Form 1040 from scratch — every line, every decision explained.
Walk through every section of Form 1040 with line-by-line guidance. From personal information and filing status through income, deductions, and credits — built from the actual IRS form and verified against primary sources.
IRS Form 1040 Instructions, IRS Publications 501, 504, 971, and primary IRS sources
The first section of Form 1040 contains the most consequential decision you'll make on the entire return. Every field has specific requirements and the wrong filing status can cost thousands of dollars.
Listing dependents drives the Child Tax Credit, the Credit for Other Dependents, and filing status eligibility. The form's table is simple — the rules behind it are not.
All eight income types on Form 1040 in one place — alphabetically organized so you read only the subsections that apply to your situation.
Above-the-line deductions that reduce AGI, plus the four new OBBBA deductions on Schedule 1-A.
The largest single reduction on most returns — how to calculate both sides and choose correctly for 2025.
How Form 1040 line 16 converts taxable income into your federal tax bill using brackets, worksheets, and preferential rates.
How tax credits reduce your bill — and when they generate refunds
The additional taxes added on top of regular income tax — self-employment tax, NIIT, Additional Medicare Tax, and more.
The final section of Form 1040 — how withholding and estimated payments compare to total tax to produce your refund or amount owed.
Your career, your situation — taxes built around who you actually are.
Career-specific and situational lessons for every type of filer. W-2 employees, retirees, self-employed, real estate investors, farmers, S-corp owners, partners, international filers, life events, disabilities, ACA, and Roth conversions — each with the full depth their situation requires.
IRS Publications, IRC primary sources, SECURE Act, OBBBA, and career-specific IRS guidance
Situational guidance for multi-job households, military service, stock compensation, tipped workers, and more
Coordinating multiple income sources, managing RMDs, executing Roth conversions, and optimizing withdrawal sequencing in retirement
Schedule C, business expenses, home office, vehicle deductions, QBI, estimated payments, retirement plans, and gig-worker rules
Passive activity rules, depreciation, REP status, short-term rentals, 1031 exchanges, and the full tax picture for rental property owners.
Schedule F, livestock treatment, income averaging, weather deferrals, farm depreciation, and the provisions unique to agricultural operations
S-corp elections, reasonable compensation requirements, payroll obligations, basis tracking, and when the S-corp strategy makes sense
How K-1 income flows to your personal return, SE tax rules for general and limited partners, basis tracking, guaranteed payments, and partnership-specific considerations
FEIE, Foreign Tax Credit, FBAR, and the full toolkit for US citizens abroad and residents with foreign income
Marriage, divorce, new children, inheritance, retirement, disability — every major life event has specific tax implications that can create lasting consequences if handled incorrectly.
ABLE accounts, disability-related medical deductions, impairment-related work expenses, credits, caregiver tax issues, special needs trusts, and disability income taxation
How the Premium Tax Credit works, MAGI calculation, APTC reconciliation, Form 8962, repayment caps, income management strategies, and the critical 2026 subsidy cliff return
The mechanics, pro-rata rule, five-year rules, backdoor strategies, bracket-filling, and when conversions help versus hurt
Other Jurisdictions