TD Bank Mortgage Calculator: How to Use, Compare and Save

Anyone who’s started house hunting in Canada quickly realizes the monthly payment number is the one that really matters. TD’s mortgage calculator is one of the most-used tools for that job, but knowing which inputs to adjust — and which default assumptions to question — can save you thousands.

Monthly payment estimate range: $1,200–$2,800 (based on median home price and current rates) ·
Interest rate assumption: 5.0% (variable), 4.8% (fixed – typical input used by calculator) ·
Amortization period options: 25 years (default), up to 30 years ·
Down payment percentage: 5%–20% (minimum varies by purchase price) ·
Payment frequency choices: Monthly, semi-monthly, bi-weekly, accelerated bi-weekly, weekly

Five key facts about what the calculator reveals — and what it hides.

How does the TD Bank mortgage calculator work?

It’s a straightforward tool, but the inputs you choose determine whether the result is realistic or just an optimistic number. The calculator takes four basic inputs and runs standard amortization formulas.

What inputs are required?

• Principal (home price or mortgage amount): The starting loan balance. For homes under $500k, the minimum down payment is 5% (CMHC (federal housing regulator)).
• Interest rate: Defaults to TD’s current posted rate, which can be overridden. TD’s posted 5-year fixed closed rate is 6.09% (NerdWallet Canada (consumer finance comparison site)).
• Amortization period: Defaults to 25 years. Insured mortgages allow up to 30 years (Canadian Mortgage Trends (industry rate tracker)).
• Payment frequency: Choose monthly, semi-monthly, bi-weekly, accelerated bi-weekly, or weekly.

What outputs are provided?

• Monthly payment broken into principal and interest portions.
• Total interest paid over the full term, which shows the real cost of the loan.
• Amortization schedule — though you’ll need to export or calculate separately for full year-by-year detail.

The implication: the default rate is rarely the rate you’ll actually get. Always adjust the interest rate to match the discounted offers TD advertises, like their 5-year fixed at 4.94% (NerdWallet Canada).

How does the TD mortgage calculator compare to other Canadian bank calculators?

Every major Canadian bank offers a mortgage calculator, but the differences are in the extras — and the defaults. Here’s how three of them line up.

Three calculators, one pattern: TD’s integration with your account is unique, but others offer stress-test visibility.

TD vs CIBC

Both offer nearly identical payment calculators with standard inputs for principal, rate, amortization, and frequency (CIBC (calculate mortgage payments)). The main difference: TD’s affordability calculator connects to your TD account to pre-fill income and debt estimates. CIBC’s version runs independently and doesn’t carry over existing relationship data.

TD vs Royal Bank

RBC’s mortgage calculator includes an explicit stress-test results display, showing whether you’d qualify at the Bank of Canada’s qualifying rate (RBC Royal Bank (mortgage calculator)). TD’s tool bakes the stress test into the affordability result but doesn’t surface it as a separate number. For buyers who want to see the exact qualifying threshold, RBC gives more transparency.

What this means: if stress-test clarity matters to you, plug your numbers into RBC’s tool alongside TD’s — the TD result alone doesn’t show whether you’re squeaking by or have room.

What factors does the TD mortgage calculator consider?

The calculator is built around four levers. Each one changes the output meaningfully.

Interest rate

This is the single most impactful variable. TD’s current mortgage prime rate sits at 5.10% (Canadian Mortgage Trends), set 0.15% above the bank’s main prime rate, which is 4.45% as of May 6, 2026 (Nesto.ca (rate comparison platform)). But discounted rates are lower — TD’s 5-year variable closed is advertised at 4.29% (NerdWallet Canada). Using the posted rate vs the discounted rate on a $400,000 loan changes the monthly payment by roughly $150.

Amortization period

Stretching from 25 to 30 years lowers the monthly payment by about 10%, but adds tens of thousands in total interest. The calculator makes the trade-off clear: it shows both the monthly number and the total interest over the full amortization period.

Down payment

Minimums follow CMHC rules: 5% for homes under $500k, scaling up for higher prices (CMHC). Putting 20% down eliminates CMHC insurance premiums, which the calculator accounts for in its total cost projection.

Payment frequency

Five frequency options let you match payment timing to cash flow. Accelerated bi-weekly makes 26 payments per year (half of monthly × 26), effectively paying down principal faster — something the calculator shows clearly in the total interest line.

The catch: the calculator doesn’t warn you that some frequency options require higher per-payment cash flow. Weekly payments mean 52 withdrawals per year — fine for bi-weekly paycheques, but a stretch for monthly income.

How can I use the TD mortgage affordability calculator?

The affordability calculator adds a layer: it estimates not just the payment, but the maximum home price you can carry. Here’s how to run it.

Step-by-step instructions

1. Navigate to the TD Mortgage Affordability Calculator on apps.td.com (TD Canada Trust (affordability tool)).
2. Enter your annual income — use your gross pre-tax household income.
3. Add monthly debts — car loans, credit card payments, student loans, and other obligations.
4. Input your down payment — include how much cash you have available.
5. Set an interest rate — start with TD’s current discounted rate (e.g., 4.94% for a 5-year fixed).
6. Select amortization — 25 years is the default; 30 years is available for insured mortgages.

Where to find the calculator on TD’s site

The calculator lives on TD’s mortgage product pages under “Mortgage payment calculator” and “Mortgage affordability calculator.” There is no single landing page — both tools are linked from the mortgage overview at TD Canada Trust (mortgage products main page).

The trade-off: the affordability calculator includes a stress test assumption, but it doesn’t show you the qualifying rate it used. You’ll see a result — either you qualify or you don’t — without the exact threshold. Run a separate stress test calculation to confirm.

Is the TD mortgage calculator app available?

Yes, and it’s more convenient than the web version for quick checks.

Features of the app

• Input mortgage amount, rate, amortization, and frequency to see monthly payments.
• Syncs with your TD account to pre-fill values if you’re logged in (TD Canada Trust (calculator product page)).
• Handles the same five payment frequency options as the web tool.
• Does not include the full affordability calculator — that’s web-only.

How to download

The TD Canada app is available on the App Store (iOS version) and Google Play (Android version). Search for “TD Canada” and look for the official banking app — not third-party mortgage tools with similar names.

Why this matters: the app calculator is a fast sanity check when you’re touring homes, but it’s not a substitute for the full affordability tool. Use the web version for purchase decisions, the app for quick recalculations.

What’s clear and what’s still uncertain

Confirmed facts

• TD offers a mortgage payment calculator and affordability calculator on its official website (TD Canada Trust (calculator page)).
• The calculators use standard mortgage formulas: principal, interest rate, amortization, and payment frequency (Canadian Mortgage Trends).
• The affordability calculator incorporates stress test rules from OSFI (OSFI (federal banking regulator)).
• TD allows 100% payment increases during the mortgage term and a 15% annual prepayment allowance (Canadian Mortgage Trends).

What’s unclear

• Whether the calculator’s default interest rate matches TD’s best offered rates for a given month.
• How frequently the calculator’s rate assumptions are updated (Canadian Mortgage Trends).
• The exact algorithm for the stress test within the affordability tool — the qualifying rate threshold is not displayed.
• Whether the calculator’s outputs are updated in real-time with current rates.

The pattern: TD provides transparency on confirmed features but withholds details on rate update frequency and exact stress test algorithm.

What TD and industry watchers say

“Discover the estimated amount of your monthly mortgage payments based on the mortgage option you choose.”

— TD Canada Trust (official calculator product page) (TD Canada Trust)

“Get a sense for your mortgage payments, the cash you’ll need to close and the monthly carrying costs.”

— Ratehub.ca (third-party comparison site) (Ratehub.ca)

The difference between those two statements is the gap between “estimated” and “sense for.” Both are useful, but neither is a guarantee.

What to take away

The TD mortgage calculator is a solid starting point, but its default rate assumptions will overstate your payment if you take the posted number at face value. For a Canadian buyer, the choice is clear: always override the rate to a discounted offer, check the affordability tool with your real income and debts, and run a separate stress test calculation — or you’ll end up underestimating your buying power by thousands.

For a detailed walkthrough of the tool’s features, check out this TD mortgage payment calculator guide that breaks down each input field and output.

Frequently asked questions

Related reading: RBC Prime Rate Today · TD Insurance Quote Car