Finance calculators that actually answer your question.

Federal Income Tax

IRS 2026 brackets, FICA, take-home.

Tax Bracket Calculator

Which bracket each $ falls into.

Paycheck (50 states)

All 50 states + SDI + FICA.

State Income Tax Hub

Brackets & flat rates by state.

Sales Tax (50 states)

State + local average rates.

Property Tax (50 states)

Annual estimate by state.

Self-Employment Tax

Schedule SE math.

1099 Tax Calculator

Contractor set-aside %.

Capital Gains Tax

LTCG/STCG + NIIT.

Marriage Tax

Penalty vs bonus filing jointly.

Estate Tax

Federal estate tax 2026.

Gift Tax

Annual exclusion + lifetime exemption.

DAF (Donor-Advised Fund)

Bunching tax savings.

QCD Calculator

Qualified Charitable Distribution.

401(k)

With employer match.

Solo 401(k)

Self-employed max.

SEP IRA

Simple self-employed plan.

SIMPLE IRA

Small biz <100 employees.

Roth IRA

Limit + phase-out.

Backdoor Roth IRA

Pro-rata rule.

Mega Backdoor Roth

After-tax 401(k).

Roth Conversion

Traditional → Roth.

Roth Conversion Ladder

Multi-year FIRE strategy.

403(b)

Teachers, nonprofits.

Pension

Defined benefit math.

HSA

Triple tax advantage.

RMD

Required Minimum Distribution.

Social Security Claiming

Age 62 vs FRA vs 70.

Annuity

Lump sum → monthly.

Withdrawal Rate

How long portfolio lasts.

FIRE

Standard FIRE planning.

Coast FIRE

Front-load and coast.

Lean FIRE

Minimalist FIRE.

Fat FIRE

Luxury FIRE.

Barista FIRE

Part-time work bridge.

RSU Tax

Withholding + true-up.

ISO AMT

Bargain element + AMT.

NSO

Non-qualified options.

ESPP

Qualifying vs disqualifying.

83(b) Election

Should you file?

Mortgage

Monthly PITI.

Refinance

Break-even.

HELOC

Draw + repayment.

Auto Loan

Car payment.

Student Loan Payoff

Standard vs accelerated.

Student Loan Refi

PSLF warning included.

Auto Lease vs Buy

TCO comparison.

Closing Costs

Cash to close.

Extra Payment

Time + interest saved.

Bi-Weekly Mortgage

13 payments/year strategy.

15 vs 30 Year

Total cost comparison.

PMI

Monthly + auto-terminate.

Affordability (DTI)

Max home price.

ARM vs Fixed

Worst-case comparison.

Rental Property ROI

Cap rate, CoC, 1% rule.

BRRRR

Buy-Rehab-Rent-Refi-Repeat.

Cap Rate

Standalone cap rate.

House Hacking

Net cost of owner-occupied rental.

Airbnb / STR ROI

Short-term rental math.

1031 Exchange

Tax deferral.

Compound Interest

With contributions, inflation.

Investment Growth (DCA)

Lump sum + DCA.

Debt Payoff (Snowball / Avalanche)

Strategy comparison.

Net Worth

Assets + liabilities + allocation.

Inflation (CPI 1913-2026)

Historical purchasing power.

529 College Savings

College cost gap.

Salary Negotiation

Lifetime value of a raise.

Cost of Living Compare

City-to-city.

Budget (50/30/20)

Allocation vs actual.

Emergency Fund

Right-size your buffer.

Savings Goal

Monthly to hit target.

DTI Calculator

Debt-to-income ratio.

Credit Utilization

Per-card + overall.

Income Percentile

Where you rank.

Real Interest Rate

Fisher equation.

LLC Tax (vs S-Corp)

S-Corp election analysis.

S-Corp vs LLC vs Sole

Three-way comparison.

Hourly Rate (freelance)

Billable rate target.

Business Runway

Months of cash.

Cost Per Employee

Fully loaded.

Home Office Deduction

Simplified vs actual.

Mileage Deduction

Standard vs actual.

R&D Tax Credit

Section 41 estimator.

Break-Even Analysis

Units + revenue.

Margin / Markup

Pricing conversion.

Crypto Tax

Capital gains math.

Cost Basis (FIFO/LIFO/HIFO)

Three methods compared.

Staking Rewards Tax

Ordinary income at receipt.

Mining Tax

Hobby vs business.

NFT Tax

Collector + creator.

Crypto DCA

Backtest avg cost.

Life Insurance Needs

DIME method.

Term vs Whole Life

Buy-term-invest-difference.

Disability Insurance

Coverage gap.

Long-Term Care

Self-insure vs LTC policy.

Health Insurance Premium

Plan total cost.

Medicare IRMAA

Premium surcharge.

COBRA Cost

vs ACA marketplace.

ACA Marketplace Subsidy

Premium Tax Credit.

HSA vs FSA

Which to elect.