Guides
In-depth, plain-English guides to go with our calculators. No jargon, no product pitches, no paywalls.
Tax Brackets Explained: Marginal vs. Effective Rate
A raise into a higher bracket never lowers your take-home. How marginal slices work, why your effective rate is lower, and how to plan around both.
Roth Conversions: When They Make Sense
Pay tax now at a low rate so the money grows tax-free forever. The windows where conversions pay off, and how to fill a bracket without overflowing it.
How to Set Your Tax Withholding (and Stop Overpaying)
A big refund means you overpaid all year, interest-free. How withholding and the modern W-4 work, and how to land near a zero balance.
The Gift Tax Explained (and Why You Probably Won't Pay It)
Most gifts are never taxed. How the annual exclusion and multimillion-dollar lifetime exemption work, what's fully excluded, and when you actually file.
Estate Tax Basics: Who Actually Pays It
Only estates above a multimillion-dollar exemption owe federal estate tax. The spousal transfer, portability, and why state taxes can bite first.