payscopeworld All tools
UNITED STATES · FINANCE TOOL DIRECTORY

Financial calculators for decisions in the United States

Choose a calculator built for US dollars, federal tax terminology and US lending conventions. Every result is an estimate: state-specific taxes, actual lender offers and your personal Social Security record require separate verification.

8 calculatorsCountry-specific notesSources and methods
LOCAL FINANCIAL QUESTIONS

How to select an appropriate calculator

01

Start with your take-home paycheck

The 2026 federal paycheck calculator covers ordinary W-2 wage income tax, employee Social Security and Medicare. It is an annual liability illustration rather than a W-4 withholding estimate. The difference matters when you're comparing net salary against monthly repayments.

Open calculator
02

Compare a mortgage before paying extra

A basic mortgage payment and a separate extra-payment calculator answer different questions. The first helps you budget principal, interest and estimated housing costs; the second holds scheduled principal-and-interest payments constant and illustrates a shorter term when you pay extra.

Open calculator
03

Calculate the full auto loan cost

Vehicle price, down payment and positive net trade-in equity affect the financed balance. Compare interest across the entire loan rather than choosing on monthly payments alone. State sales tax and dealer fees must be entered from a written quote.

Open calculator
04

Plan savings and credit-card repayment

Use compound growth for hypothetical monthly savings and credit-card payoff for a single outstanding balance. One predicts investment growth under assumed returns; the other applies a fixed interest rate and payments to debt. Neither predicts market performance or actual daily card billing.

Open calculator
01

Income and tax

1
02

Savings and retirement

2
03

Home finance

2
04

Credit and debt

2
05

Vehicle finance

1

Questions about these calculators

Do the US calculators include state tax automatically?

No. Federal tax estimates and countrywide credit math cannot replace a state- or city-specific calculation. If a state tax amount matters, verify it using your state's official tax authority or the lender's quote.

Why is the credit card payoff different from my issuer's statement?

The model uses a nominal annual rate divided by 12. Real cards can charge interest on a daily average balance with fees and multiple APR buckets.

Can I use the retirement tool as a Social Security forecast?

No. It projects personal contributions under assumed investment returns. Use your SSA earnings record for a government benefit estimate.

Check the official source

Links to official agencies and guidance are provided for reference; tools here remain independent educational estimates.

IRS · Tax withholding resourcesConsumer Financial Protection Bureau · ToolsSSA · Your Social Security statement