About NestEgg

NestEgg is an independent, advertising-supported website. Year-end contribution windows and plan design choices are easy to misread. We build transparent arithmetic tools and sourced guides so you can sketch match capture, Roth vs Traditional outcomes and conversion tax ballparks — then verify with official IRS figures and your plan documents.

What we publish

A 401(k) contribution and employer match estimator, a Roth vs Traditional comparison, a compound growth / years-to-target tool, a Roth conversion tax ballpark, and guides covering elective deferral concepts, catch-up contributions and common plan pitfalls.

How we research

Contribution limit figures referenced on this site come from publicly announced IRS notices (for example IR-2025-111 for 2026). Always verify the current IRS newsroom notice and your Summary Plan Description before acting. We never invent brokerage promotions. Every figure that comes from a third party is linked at the bottom of the page where it is used, and every page shows when it was last reviewed. If a carrier, retailer or organisation changes its published information, the official source wins over anything on this site.

How the tools work

All calculators run in your browser. Salary, deferral and balance figures you type are not sent to our servers.

How we make money

NestEgg shows advertising (Google AdSense) and does not accept payment from insurers, brokers, banks or any company in exchange for coverage in our guides. We do not sell leads, and we do not sell or recommend any specific insurance policy or financial product.

Corrections

If you spot an error, tell us through the contact page. We correct factual mistakes quickly and update the “last updated” date when we do.