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Tax

Tax guides explain common tax rules for paychecks, home sales and small businesses, with simple examples. For paychecks, read how salary tax withholding works and whether overtime puts you in a higher tax bracket. Self-employed readers can check who needs to pay quarterly estimated taxes.

For homeowners, there are guides on the home sale capital gains exclusion, how to calculate capital gains on a home sale, which home improvements add to cost basis, and the tax side of renting versus selling a home. Businesses selling across borders can read how GST works and how GST differs from VAT.

Each guide pairs with a tool in the tax and payroll calculators topic. The articles cite IRS and other official sources, but they are educational only and not tax advice. Thresholds change each year, so confirm current figures before you file.

Tax has 8 free guides, including Social Security Wage Base 2027: $192,300, Social Security Earnings Limit 2027 and Dependent Care FSA Limit: $7,500 Explained. Pick one below.

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Health

HSA Contribution Limits 2027 (IRS)

IRS 2027 HSA limits: $4,500 self-only, $9,000 family, plus HDHP deductible and OOP thresholds from Rev. Proc. 2026-24.

What guides are in Tax?

Tax has 8 guides. Here is the full list from A to Z: