Find benefits, exemptions, and tax savings you may qualify for
Free calculators and guided eligibility checks for individuals and families. Get clear, unbiased answers to complex financial questions.
Browse Categories
How it Works
From zero to eligible in four simple steps.
Choose region
Pick your country and state or province.
Answer a few questions
Anonymously enter income, household, and dependents.
See results
Get a clear estimate, eligibility, and confidence level.
Take action
Follow links to official forms and filing instructions.
Verified Sources
Data drawn from IRS, HMRC, and CRA official publications.
Last Updated
Every calculator shows the date its rules were last verified.
Privacy First
No account required. We don't store or sell your financial profile.
Calculators and eligibility checks that tell you what you may be owed
OnlineCalc brings together the calculations people most often need to make about money: taxes, government benefits, property tax, exemptions, and take-home pay. Instead of asking you to read pages of legislation, each tool asks a few plain-language questions and returns a clear answer in seconds. No account, no sign-up, and no newsletter required.
We focus first on the United States, United Kingdom, and Canada, and the platform is built to expand to more countries over time. Every result is region-aware: amounts use your local currency, dates follow your local format, and eligibility rules reflect the correct tax or benefit year.
Critically, the numbers come from a deterministic rules engine - not from a guess. We use AI only to explain results in plain language and to translate them, never to decide whether you qualify. Every calculator shows the date its rules were last verified, links to the official source, states a confidence level, and carries a clear reminder that an estimate is not tax, legal, or financial advice.
How we calculate
Each calculator is built on official formulas and published figures - not rules of thumb. When a value appears on the site, it comes from a law, regulation, or official government publication. Here are the primary sources behind each region:
United States - Internal Revenue Service (income tax, Child Tax Credit, EITC), Social Security Administration, Medicaid.gov, and individual state tax agencies and county assessors for property tax and exemptions.
United Kingdom - GOV.UK and HMRC for Income Tax, National Insurance, VAT, and benefits such as Universal Credit, Child Benefit, and Council Tax Reduction.
Canada - Canada.ca and the Canada Revenue Agency for the Canada Child Benefit, GST/HST credit, CWB, OAS/GIS, and capital gains; provincial pages for regional benefits and property tax.
When figures change, we update the affected calculators and refresh their "last verified" date. Read more in our methodology & editorial standards.
Frequently asked questions
Are the calculators really free?expand_more
Yes. Every calculator and eligibility check is completely free, with no account, login, or premium tier. The site is supported by advertising, which never influences a calculation or its result.
Do you store the information I enter?expand_more
No. Calculations run in your browser, and we don't require an account or store the income, household, or other details you type into a calculator. See our Privacy Policy for exactly what is and isn't collected.
How accurate are the results?expand_more
Tax and benefit calculators follow the official formulas and published figures for the relevant year, so they typically match government calculators closely. Complex individual situations can differ, and the tools don't replace advice from the relevant agency or a qualified professional.
How current are the figures?expand_more
Each calculator shows the date its rules were last verified and links to the official source. When laws or thresholds change, we update the affected calculators and refresh that date.
Is this tax, legal, or financial advice?expand_more
No. OnlineCalc provides estimates and general information to help you understand your situation. Always confirm with the official agency (such as the IRS, HMRC, or CRA) or a qualified professional before making decisions.