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Free Resource • Updated for 2025 Tax Year

Understand Your Tax Return in Plain English

No accounting degree required. We break down every line of Form 1040 so you can finally understand where your money goes — and maybe even find ways to keep more of it.

100+
Lines Explained
15+
Schedules Covered
0
Jargon Required

Your Complete Tax Education

Four comprehensive guides that take you from confused to confident

Form 1040 Line-by-Line

The main event. We explain every single line on Form 1040 — what it means, where the number comes from, and why it matters to your bottom line.

Income Section Deductions Tax Calculation Refund or Owed
Read the Guide

Schedules Explained

All those extra forms that attach to your 1040. We cover Schedule 1, 2, 3, A, B, C, D, E, SE and more — in language you can actually understand.

Schedule 1-3 Itemized (Sch A) Self-Employment Investments
Explore Schedules

Tax Calculation Flow

See the big picture. A visual walkthrough of how your total income transforms into your final tax bill (or refund) through deductions, credits, and payments.

Visual Guide Step-by-Step Real Examples The Math
See the Flow

Why We Created This Guide

Every number on Form 1040 either comes directly from a document (like a W-2 or 1099) or is calculated from other lines. There are no mystery numbers.

The problem? IRS instructions are written for accountants, not regular people. This guide bridges that gap — translating tax jargon into plain English so you can actually understand your financial story.

Plain language explanations
Source document tracing
Real-world examples
Common mistakes to avoid
Tax-saving opportunities
Updated for 2025

Key Numbers You Need to Know

$15,000
Standard Deduction
Single / Married Filing Separately
$30,000
Standard Deduction
Married Filing Jointly
$22,500
Standard Deduction
Head of Household
$0.70
Mileage Rate
Per business mile driven

2025 Tax Deadlines

Jan 15, 2026 Q4 2025 Estimated Tax Payment Due Passed
Jan 31, 2026 Employers must send W-2s; 1099-NEC due to contractors
Mar 16, 2026 S-Corporation (1120-S) and Partnership (1065) returns due Business
Apr 15, 2026 Individual tax returns (Form 1040) and Q1 estimated payments due Key Date
Jun 15, 2026 Q2 Estimated Tax Payment Due
Sep 15, 2026 Q3 Estimated Tax Payment Due; Extended S-Corp/Partnership returns
Oct 15, 2026 Extended Individual Tax Returns Due Extended

Ready to Understand Your Taxes?

Start with our Form 1040 guide and finally make sense of that document that determines how much you owe (or get back) every year.

Start Learning →