Last updated October 24, 2026

Information.
Not financial advice.

DollarMath provides calculators and information for educational purposes. It does not provide financial advice.

Estimates depend on assumptions

Results illustrate the inputs, formulas and supported regional rules shown on each page. They do not consider your full financial situation, establish suitability, or recommend an investment, borrowing arrangement or tax strategy. Defaults are examples, not current offers, market forecasts or guaranteed outcomes.

Tax and lender decisions are separate

A result does not determine tax deductibility, contribution eligibility, mortgage or credit approval, or authorization to reduce payroll withholding. Tax, legal and lender requirements may differ from the model and can change. Confirm the relevant facts with the tax authority, lender, payroll team or a qualified professional before acting.

Borrowing to invest adds risk

Investment values can fall while debt remains payable. Interest rates and required payments can increase. A loan secured by your home can put your home at risk. A tax-relief assumption does not remove the cost of borrowing or guarantee a profit.

Check the scope and source

Read the methodology and exclusions beside each tool. Review the source coverage and review dates, check figures against your own records, and obtain appropriate independent advice for decisions involving your money. Calculations, content and sources can contain errors or become outdated.

Contributions do not change the service

Any support payment is optional and supports development. It does not purchase financial advice, professional review, guaranteed results or access to additional calculator functions.