Canadian Financing · Private Loans · Commercial Real Estate
Interest-Only Payments. Clear VTB Schedules.
Understand what you pay during the loan term and what remains owing at maturity. Use the interest only loan calculator above to estimate payments, model principal reductions and prepare a printable payment schedule.
The VTB calculator features support interest-only vendor take-back mortgages, optional lump sums, partial first-period interest and schedules with your own clauses and party details.
How to Use the Interest Only Loan Calculator
Start with a quick payment estimate. Add dates, principal payments and document details when you need a complete schedule.
Loan Amount and Interest Rate
Enter the principal being financed and the annual interest rate. For a VTB mortgage, use the amount financed by the seller, rather than the property's total purchase price. Select the appropriate currency.
Review Interest Estimates
Review monthly, weekly, quarterly and annual interest estimates. Add regular principal payments or lump sums if the proposed financing includes balance reductions.
Enter Dates and Payment Terms
Specify the loan advance date, first payment date, payment frequency and loan term. Choose the applicable first-period interest method when the initial period is shorter than a regular payment period.
Review, Add Clauses and Print
Generate the detailed schedule. Add relevant party names, property information and your own clauses where required. Review the completed document before printing or saving it as a PDF for professional review and signing.
Clauses entered in the notes field do not change the calculations. Enter all applicable rates, dates and principal payments in the calculator fields as well.
How Are Interest-Only Loan Payments Calculated?
An interest-only payment covers interest on the outstanding loan balance. It does not reduce principal unless a separate principal payment is made.
Monthly Interest = Outstanding Principal × Annual Rate ÷ 12
For a $300,000 loan at 7% simple annual interest: $300,000 × 0.07 ÷ 12 = $1,750 per month.
| Loan Amount | 6% Annual Rate | 7% Annual Rate | 8% Annual Rate |
|---|---|---|---|
| $100,000 | $500.00 | $583.33 | $666.67 |
| $300,000 | $1,500.00 | $1,750.00 | $2,000.00 |
| $500,000 | $2,500.00 | $2,916.67 | $3,333.33 |
| $1,000,000 | $5,000.00 | $5,833.33 | $6,666.67 |
These are illustrative rates, not current lending quotes. Calculations assume unchanged principal and simple annual interest divided into 12 equal monthly periods. Amounts exclude fees, principal repayments and partial periods.
Weekly, Monthly, Quarterly and Annual Estimates
The quick calculation divides annual simple interest by 52 for weekly payments, 12 for monthly payments and 4 for quarterly payments. Annual interest covers one full year. A dated schedule may differ because of partial periods or principal changes.
Mortgage and loan agreements may specify compounding, day-count conventions or other calculation terms. Match the calculation method to the agreement. For general background, read the Financial Consumer Agency of Canada's mortgage interest guidance .
VTB Calculator for Vendor Take-Back Mortgages
A vendor take-back mortgage (VTB) is financing provided by the seller to the buyer for part of a property's purchase price. The parties negotiate the interest rate, payment structure, term and repayment conditions.
Use this VTB calculator to model interest-only seller financing with optional principal payments and lump sums. A VTB requiring fixed blended payments over an amortization period needs a calculation suited to that structure.
| Seller-financed principal | $300,000 |
|---|---|
| Annual simple interest rate | 7% |
| Monthly interest payment | $1,750 |
| Interest over 36 full monthly periods | $63,000 |
| Principal remaining at maturity | $300,000 |
Paying $63,000 in interest does not repay the $300,000 principal. Without principal reductions, the original principal remains owing at maturity. The final payment may also include interest and other amounts due under the agreement.
Review the repayment plan before agreeing to the payment. Discuss the maturity balance, repayment source, security, prepayment terms and any required senior-lender consent with the relevant professional advisers.
How Principal Payments and Lump Sums Change the Loan
When interest is calculated on the outstanding balance, principal reductions lower the basis for future interest. The date a principal payment takes effect matters.
Adding a $50,000 Lump Sum
A $50,000 principal payment reduces a $300,000 loan to $250,000. At 7% simple annual interest, the following full month's interest would be approximately $1,458.33, compared with $1,750 before the reduction.
Adding $2,000 of Monthly Principal
If $2,000 of principal is paid at the end of the first full month, the first payment would be $1,750 interest plus $2,000 principal: $3,750. The balance becomes $298,000, making the next full month's interest approximately $1,738.33.
These examples assume monthly simple interest and no other balance changes. Check the financing agreement for prepayment rights, restrictions, notice requirements and charges. Fixed principal payments generally produce declining total payments as the interest amount decreases.
Partial First Payments and Loan Advance Dates
Commercial transactions may close partway through a month, while regular payments are due on the first day of the next month. The first short period may therefore require a separate interest calculation.
For an illustrative 17-day period on $300,000 at 7% annual interest, using actual days divided by 365:
$300,000 × 0.07 × 17 ÷ 365 = $978.08
Use the actual day count, denominator and date-inclusion rules required by the agreement.
Confirm whether interest is payable before or after the period it covers, how same-day principal reductions are applied and whether the final payment period is shorter than a regular period.
Create a Printable Loan Payment Schedule
A detailed schedule shows how each payment affects the loan balance. Review the opening balance, interest, principal, total payment and closing balance for each payment date.
Add Transaction Details
Include the relevant buyer and seller, lender and borrower, property address and agreement date when preparing a document for a specific transaction.
Add Your Own Clauses
Type or paste payment terms, conditions and supporting notes. Check that the amounts and dates entered in the calculator reflect those clauses.
Use Print / Save PDF to prepare a copy for review and signing. A signature-ready layout does not replace review of the underlying loan or mortgage documents. Confirm the completed schedule with the appropriate advisers before attaching it to an agreement.
Commercial Financing: Consider the Entire Transaction
A manageable payment is only one part of an acquisition assessment. Consider property taxes, insurance, repairs, capital improvements, working capital and other debt obligations alongside the proposed loan.
Buyers reviewing gas stations for sale in Ontario should evaluate fuel margins, store income, environmental conditions and equipment. A fuel supply agreement review can help identify commercial terms affecting operating cash flow.
When assessing a car wash acquisition in Ontario , include equipment condition and replacement requirements in the financing discussion.
For general information about business property borrowing, explore BDC's commercial real estate financing options . Eligibility and financing terms are determined by the lender.
Interest-Only Loan and VTB Calculator FAQs
What is an interest-only loan?
It is a loan whose scheduled payments cover interest without reducing principal during the interest-only period. Principal remains owing unless separate repayments are made.
Can I use this calculator for a VTB mortgage?
Yes, for an interest-only vendor take-back mortgage with optional principal reductions. Enter the seller-financed amount, rate, term and payment details. Fixed blended amortizing payments require a different calculation structure.
What is the monthly interest on a $100,000 loan?
At 7% simple annual interest, the monthly interest is approximately $583.33. At 6%, it is $500. These estimates exclude fees and principal repayments.
Does a lower interest-only payment mean a cheaper loan?
Not necessarily. The payment may be lower because it does not repay principal. Compare total interest, fees, principal repayments and the amount due at maturity.
What happens to the loan balance at maturity?
The outstanding principal is payable according to the agreement, together with any other amounts due. Refinancing or an extension should not be assumed to be available.
Why is my lender's payment different?
Differences may arise from compounding, day-count methods, payment dates, rounding, fees, rate changes or the timing of principal reductions. Compare the assumptions used in both calculations.
Can I add clauses and print the schedule for signing?
Yes. Add the relevant clauses and party details, generate the schedule and use Print / Save PDF. Have the completed document checked against the financing agreement before signing.
Does selecting a currency convert the loan amount?
No. The currency selection labels the amounts used in the calculation. It does not perform an exchange-rate conversion or determine the legal terms of the loan.
Calculation scope: This calculator and the examples are provided for planning and comparison. They are not a lending offer or legal, tax or accounting advice. The applicable financing documents govern. Confirm material calculations and payment schedules with the appropriate professional before relying on them in a transaction.