Introduction: Why This Book Exists

This post is the Introduction of the book Keep More of What You Earn — a plain-English guide to US taxes.

Maria and Denise sit three desks apart at the same company. Same job title. Same $68,000 salary. Same health plan. In April, they compare notes over lunch, the way coworkers do, and Maria nearly drops her sandwich: Denise is getting a $3,400 refund. Maria owes $612.

Same pay. Same employer. A $4,000 swing.

Maria did nothing wrong. She didn’t cheat, she didn’t forget a form, and nobody at the IRS has it out for her. She just never learned the handful of decisions — made in October, not April — that quietly shaped Denise’s return. Denise bumped up her 401(k) contributions mid-year. She ran her freelance design income through the right estimated payments instead of underpaying and getting penalized. She knew which filing status fit her newly divorced life, and she didn’t leave the child care credit on the table the way Maria did.

That gap — between what people earn and what they keep — is what this book is about. Not loopholes. Not schemes. Just the ordinary, legal mechanics of the US tax system, explained the way I’d explain them to a client sitting across from my desk: plainly, with real numbers, and with enough lead time that you can actually act on them.

Who this book is for

If any of these sound like you, you’re in the right place:

• You earn a paycheck, file every year, and have a nagging feeling you’re leaving money behind — but tax jargon makes your eyes glaze over.
• You’re a freelancer, gig worker, or small business owner who discovered that nobody withholds taxes for you, and April feels like an ambush.
• You’re a parent trying to figure out which credits your kids actually qualify you for, and why the rules seem to change every year. (Sometimes they really do.)
• You’ve always done your own taxes with software, and you want to understand what the software is doing — so you can catch its mistakes and plan ahead instead of just reacting.

You don’t need an accounting degree. You don’t need to love math. Every calculation in this book is worked out step by step, in dollars, the way it would look on your own return. If you can follow a recipe, you can follow this book.

A quick word about who I am

I’ve spent years on both sides of the tax desk: preparing returns as a seasonal tax professional, keeping the books for small businesses, and answering the same anxious questions every filing season. The question I hear most isn’t really about a form. It’s some version of: “Am I doing this right?”

Usually, the answer is yes — with a few adjustments that nobody ever taught them. This book is those adjustments, organized into the order you’ll actually need them: first understanding the system, then filing this year’s return correctly, then planning so next year’s return is better.

How to use this book

The book has three parts, plus this introduction and a closing chapter:

• Part I — How the System Works (Chapters 1–4). The foundations: how tax is calculated, what counts as income, how deductions and credits differ, and how your filing status and dependents change everything. Read this straight through. It’s the vocabulary for everything after.
• Part II — Filing Your Return (Chapters 5–9). The practical season: gathering documents, choosing between the standard deduction and itemizing, deciding whether to do it yourself or hire help, the mechanics of filing, and what to do if the IRS writes to you.
• Part III — Planning Ahead (Chapters 10–14). Where the real money is: retirement accounts, health and education tax breaks, self-employment strategy, tax-smart investing, and the year-end moves that separate the Marias from the Denises.

Each chapter opens with a real-life scenario, works through dollar examples with real math, and closes with key takeaways plus a look at what’s next. You can read cover to cover, or dip into the chapter that matches your situation — but if tax has always confused you, start at Chapter 1. The system makes a lot more sense once you see how the pieces fit.

A note on tax years and numbers

Taxes are a moving target. Every dollar figure in this book is for tax year 2026 — the return you’ll file in early 2027 — and each figure is labeled with its year. Brackets, deduction amounts, and credit limits are adjusted for inflation most years, and Congress changes the rules often enough that last year’s numbers can mislead you.

So treat the figures here as your working map for 2026, and build one habit that will serve you for life: when a number matters to a decision, confirm it on IRS.gov before you act. The IRS publishes the current figures every fall, and I’ll point you to exactly where to look throughout the book.

Important disclaimer — please read this

This book is educational content, not personal tax advice. It explains how the US tax system works in general terms so you can make better-informed decisions. It does not know your income, your family situation, your state, or your goals — and tax decisions genuinely depend on those details.

Nothing in these pages creates a preparer–client relationship. Before acting on anything here — especially big moves like changing your filing status, restructuring a business, or making large retirement or investment decisions — consult a qualified tax professional (a CPA, an Enrolled Agent, or a qualified tax attorney) who can look at your full picture. Tax law changes, and honest mistakes on a return can cost you penalties and interest. A short conversation with a professional is the cheapest insurance you’ll ever buy.

With that said, an informed client gets far more out of a professional than a confused one does. This book’s job is to make you the informed one.

What this book will not do

A fair warning about what’s not in here, so you don’t go looking for it:

• No schemes, gray areas, or “the IRS doesn’t want you to know this” tricks. Everything here is mainstream, legal, published tax law. If a strategy sounds too clever to be in a plain-English book, it probably belongs in a conversation with a tax attorney, not on your return.
• No state taxes. Every state is its own universe — some have no income tax at all, others have rules as complex as the federal ones. This book covers federal taxes only, and I’ll flag the spots where your state likely has its own say.
• No deep business taxation. Chapter 12 covers what freelancers and small business owners most need, but corporate tax, partnerships with complex allocations, and multi-state businesses are beyond our scope — that’s professional-advisory territory.

The one idea that changes everything

If you take only one idea from this introduction, make it this: taxes are not something that happen to you in April. They’re something you shape all year.

Almost every valuable tax move — funding a retirement account, timing a charitable gift, adjusting your withholding, harvesting an investment loss — has a deadline of December 31st. By the time you’re gathering documents in February, most of the game is already over. The filers who keep the most aren’t smarter than you. They just make a few decisions earlier.

That’s the real promise of this book. Not a bigger refund — a refund is just your own money coming back to you, and I’d rather you never overpay in the first place. The promise is control: understanding where your money goes, why, and which levers you can pull.

Maria, from our opening story, read an early draft of Chapter 14 and made three changes before year-end. The next April, the gap between her and Denise had nearly closed. Not because the system favored her — because she finally understood it.

Let’s make sure that happens for you, too. Turn the page, and we’ll start with the single most misunderstood idea in all of taxation: how your tax is actually calculated.

Key takeaways

1. Same income doesn’t mean same tax. Filing status, deductions, credits, and timing decisions create real differences — often thousands of dollars — between people who earn the same amount.
2. This book covers tax year 2026 (filed in early 2027). Figures change yearly; confirm any number that drives a decision on IRS.gov.
3. This is education, not personal tax advice. For decisions with real dollars attached, talk to a qualified tax professional who knows your full situation.
4. The biggest tax savings happen before December 31st, not during filing season. Planning beats reacting, every time.
5. You don’t need to love taxes to master the basics. Worked examples, plain language, and one chapter at a time will get you there.

Next: Chapter 1 — How US Taxes Actually Work.