4
Calculators
50
US states supported
13
Canadian provinces
Jan 2025
Last data update
I built TaxAndLoans because I kept running into the same problem over and over: every time I needed to estimate a mortgage payment, double-check a tax bracket, or figure out what a car loan would really cost each month, the calculators I found online fell short. Some were so cluttered with ads that I could barely find the input fields. Others demanded an email address before showing me a result, or buried the actual formula behind a vague “your estimated payment is...” with no way to check the math myself. And almost every option I tried only worked for one country — plenty of solid US mortgage calculators existed, but almost nothing handled Canadian federal and provincial tax brackets, CPP, and EI in the same place. I wanted one site that was light on ads, transparent about exactly how it arrived at a number, and accurate for both the United States and Canada, so I built it.
TaxAndLoans is a small, focused set of calculators: a mortgage calculator with a full PITI breakdown, a US income tax calculator, a Canadian income tax calculator, and an auto loan calculator. Every one of them includes a “Show the math” section with the formula and your actual numbers substituted in, because I think a calculator you can't audit isn't one you should trust with a decision as significant as buying a home or financing a car.
Built on primary sources
How the numbers are sourced
Accuracy matters more to me than almost anything else on this site, so every dataset behind these calculators traces back to a primary, official source rather than a guess or a secondhand summary. US federal income tax brackets and withholding figures come directly from IRS.gov, including IRS Publication 15-T. Canadian federal and provincial tax brackets, along with CPP and EI rates, come from the Canada Revenue Agency at canada.ca, including the CRA's T4032 payroll deductions tables. The average property tax rates used in the mortgage calculator and the sales tax rates used in the auto loan calculator come from the Tax Foundation's published state-by-state data. If a number appears anywhere on this site, I can point to exactly where it came from — nothing here is invented or eyeballed.
Keeping the data current
Tax law changes every year, and stale brackets are worse than no calculator at all. I review and update every bracket, rate, and threshold on this site every January, once the IRS and CRA have published their figures for the new tax year. The methodology page tracks exactly which tax year each calculator is currently using, so you always know how current the numbers are.
What this site is not
TaxAndLoans is not a financial advisor, an accountant, or a tax professional, and nothing on this site is personalized financial, tax, or legal advice. Every result is an estimate built on simplified, general-purpose assumptions — your actual mortgage approval, tax bill, or loan terms will depend on details these calculators can't see, like your complete financial picture, your lender's specific underwriting criteria, or credits and deductions that don't fit neatly into a general formula. Always verify any number that matters with a qualified professional before making a financial decision based on it.
How the calculators actually work
Every calculation on this site runs entirely in your browser using plain JavaScript. When you type a number into a field, nothing is sent anywhere — there's no backend server processing your income, your loan amount, or your home price, no database storing what you typed, and no account to create. You could disconnect from the internet the moment the page finishes loading and every calculator would keep working exactly the same. That's a deliberate choice: your financial numbers are yours, and they should stay that way.
What makes a good financial calculator
A financial calculator is only useful if you can trust the number it gives you, so every design decision on this site starts from that idea. Every calculator has a “Show the math” section that substitutes your actual numbers into the real formula, so you can check the work yourself instead of taking a black-box result on faith. There are no email walls or account requirements — you should never have to hand over your address just to see a number you could calculate by hand given enough time. Every dataset traces back to a primary source like the IRS or CRA, never a secondhand summary that might have copied an error along the way. The site treats US and Canadian users as equally important, not as an afterthought bolted onto a US-only tool. And every input updates the result instantly — there's no submit button standing between you and your answer.
Who uses TaxAndLoans
A first-time homebuyer comparing listings across states wants to know what a $350,000 mortgage actually costs once property tax and PMI vary by state — not just the sticker-price loan amount a lender quotes before either is factored in.
A cross-border worker weighing a job offer in Toronto against one in Seattle uses the US and Canadian income tax calculators side by side to see which paycheck actually goes further after federal, provincial or state tax, CPP, EI, and FICA.
A car buyer torn between a 60-month and 72-month loan wants to see the real tradeoff in dollars, not just the lower monthly payment a dealer highlights, before deciding how many years of interest is worth saving on the payment.
What's coming next
TaxAndLoans is a small site built and maintained by one person, so new calculators ship slowly and deliberately rather than all at once. Several are in planning: a compound interest calculator for savings goals, a 401(k)/RRSP retirement planner for both countries, a rent-vs-buy comparison, a student loan payoff calculator, and a home affordability estimator based on income and debt. None has a firm release date yet, but the same rules will apply to each: real formulas, primary-source data, and no ads-first design getting in the way of the answer.
A note on accuracy
Every January, once the IRS and CRA publish their new brackets, rates, and thresholds, this site's data gets reviewed and updated for the new tax year — the methodology page always shows which year each calculator currently uses. If you spot a number that looks wrong, the fastest way to flag it is through the contact page with the calculator name and the figure in question. Verified errors get fixed within 7 days. Even so, every result here is an estimate built on general assumptions, not personalized tax advice — for anything that affects a real filing or a real loan, confirm the final number with a qualified professional.