The 529 Plan: A College Fund That Can Outlive College
A 529 isn't a single-purpose account anymore. It can pay for school, move $35,000 into your kid's Roth IRA, and still be compounding for a grandchild who doesn't exist yet.
Read →Personal finance education
Free calculators, and the math behind them.
I'm Tyler Biberston. I'm not a financial advisor, I'm someone who got interested in personal finance and kept reading. The calculators here each answer one question, and the writing shows the work. Free, and you don't need an account for any of it.
The toolkit
Calculators that give you a clear answer.
Each one answers a single question and shows how it got there.
01
401(k) Match
How much employer match you leave behind by under-contributing.
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Roth IRA Projection
Project decades of tax-free growth from what you save today.
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Take-Home Pay
Turn a gross salary into the number that lands in your account.
● Live04
Compound Interest
What a starting balance and a monthly habit turn into over decades.
● Live05
Debt Payoff
How long the balance takes to clear, and what the interest costs you.
● Live06
Roth Conversion
Whether converting a Traditional IRA to Roth beats the tax bill.
● LiveLatest from the blog
What I've been writing about.
The Custodial Roth IRA: The Most Underused Account in America
A 9-year-old with earned income can have a Roth IRA. Five summers of matched lawn-mowing money, $12,500 in all, gets you two thirds of the way to what 35 years of maxing out does.
Read →High Yield Savings Account vs Money Market: Where Should Your Cash Live?
Your emergency fund can do better than 0.01%. A top high yield savings account against a money market fund, and which one I would pick.
Read →What to expect
What this is, and what it isn't.
What it is
- Calculators you can use without an account
- The math shown, with sources where it matters
- Notes from what I read and work through
- One question answered at a time
What it isn't
- Financial, tax, or investment advice
- A course, coaching, or an upsell funnel
- Get-rich-quick anything
- A faceless content farm
// Educational content only. Not financial, tax, or investment advice.