Commercial mortgage calculator: both repayment bases, live.
Enter property value, loan amount and term, then toggle between interest only and capital and interest. Monthly payment, LTV and total cost of borrowing update instantly, with rates from 5.9% pa based on current whole of market pricing. No contact details required to see any of it.
See your full cost of borrowing. Instantly.
No email gate, no callbacks required. Adjust the inputs and every figure, interest, fees and redemption, updates live. The honest guide. No jargon.
Whole of market today: 0.69% to 0.95% pm on first charge residential and semi commercial, higher on commercial, land and second charge. The figure above is the assumption the numbers use; change it to model a rate you have been quoted.
First-charge residential / semi-commercial assumed. Second charge and commercial priced on request.
Indicative only. Not an offer of credit. The rate above is an assumption you can change, not a quote. Real pricing, fees and leverage vary by lender, asset, exit and borrower profile and can move at any time. Valuation and legal costs are estimates. Everything is subject to valuation and full underwriting. HyLend is a credit broker, not a lender.
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What the calculator shows you
Four inputs: property value, loan amount, term in years, and repayment basis. The calculator returns your monthly payment on each basis, your loan to value, and the total cost of borrowing across the term, so the interest only versus capital and interest decision stops being abstract and becomes two numbers side by side on your actual deal.
One thing the calculator makes visible that surprises most borrowers: serviceability usually constrains the loan before LTV does. Lenders stress your rent or trading profits against a rate higher than today's, and that stress test often sets your maximum loan below the 75% cap. Model a loan and term, and if the implied payment looks tight against your income, that is the conversation to have with us early. The full explanation is in the commercial mortgage guide.
From model to terms
Press apply and your inputs attach to the application automatically. We test the deal against the whole market, investment and owner occupied lenders both, and issue indicative terms within 24 hours. Exiting a bridge into a term facility? We arrange that refinance end to end.
A worked example: interest only against repayment
Property worth £1,000,000, loan of £650,000, twenty year term, rate left at the 5.9% a year entry assumption. Loan to value is 65%. The calculator returns both repayment bases:
| Line | Interest only | Capital and interest |
|---|---|---|
| Monthly payment | £3,196 | £4,619 |
| Lender arrangement fee (2%) | £13,000 | £13,000 |
| Broker fee (1%) | £6,500 | £6,500 |
| Valuation and legals (est.) | £2,300 | £2,300 |
| Total upfront fees | £21,800 | £21,800 |
| Balance at the end of the term | £650,000 still owed | Nil |
The £1,423 a month difference is capital repayment, not cost. Interest only preserves cash flow and leaves the loan to be refinanced or repaid from a sale; capital and interest clears it. Which is right depends on what the asset is for, and on what the lender will accept for it: owner occupiers usually have the choice, investment property is often interest only by default, and some lenders insist on amortisation for specialist assets.
How to read the result
- Annual rate. An editable assumption defaulting to our whole of market entry rate. Real pricing moves with loan to value, the asset and the covenant. Rates by leverage and asset →
- Loan to value. Loan against the value you entered. Above 75% you will see a note on higher leverage structures rather than a refusal, but expect the lender's own valuation to be the figure that counts.
- Monthly payment. Interest only is the loan times the rate divided by twelve. Capital and interest amortises over the term you set.
- Total upfront fees. What you pay to get the facility in place, before the deposit. Compare two quotes on this line plus the rate, over the period you will actually hold the property.
What the calculator cannot tell you
Commercial lenders test two things a payment calculator cannot see. Affordability: for investment property, the rent against the interest, usually needing 125% to 145% cover at a stressed rate; for owner occupiers, the trading accounts. The valuation basis: commercial reports carry market value, a restricted marketing figure and often a vacant possession figure, and the loan is a percentage of whichever one the lender applies. A 65% loan on market value and a 65% loan on a 180 day figure are different amounts of money. How the basis sets your deposit →
Commercial mortgage calculator FAQs
How is a commercial mortgage payment calculated?
On interest only, the loan multiplied by the annual rate and divided by twelve, so £650,000 at 5.9% is £3,196 a month. On capital and interest the payment amortises the loan over the term, so the same loan over twenty years is £4,619 a month, with the extra £1,423 reducing the balance rather than being a cost. The calculator shows both so the difference is visible.
Should I choose interest only or capital and interest?
Interest only keeps the monthly cost down and suits investment property where the plan is to sell or refinance, and it is often the default lenders offer for let assets. Capital and interest clears the debt over the term and suits owner occupiers who want to own the premises outright. Some lenders require amortisation on specialist assets. The right answer depends on what the property is for and on cash flow, not on which payment is smaller.
What deposit does the calculator assume?
Whatever the gap between the value and the loan you enter. Commercial lenders typically go to 70% to 75% loan to value on standard premises for a strong owner occupier and 60% to 70% on investment property, with specialist assets lower. The figure they apply that percentage to is their own valuation, which can sit below the price.
Is the rate shown the rate I will get?
No. It is an editable assumption starting at the current whole of market entry rate for low leverage, standard assets and strong income. Most real cases price between 6.5% and 8.5%. Type in a rate you have been quoted and the calculator shows the true monthly cost and fees at that figure.
What fees are included?
The lender arrangement fee at 2% of the loan, our broker fee, and estimated valuation and legal costs, totalled as upfront fees. Not included are stamp duty, your own solicitor beyond the estimate, or early repayment charges, which depend on the product and which we set out on a real quote.
How do lenders decide how much I can borrow?
Twice, and the lower answer wins. As a percentage of the valuation, and as the amount the income will support: rental cover for investment property, typically 125% to 145% of the interest at a stressed rate, or trading affordability for an owner occupier. A property can pass the loan to value test and fail the income test, which is why a short unexpired lease or a low rent reduces the loan on an otherwise strong building.
A note on the value you enter
On commercial security, lenders frequently apply the loan to value percentage to a restricted marketing period figure rather than to market value, typically 5% to 15% below on a 180 day basis and 10% to 25% below on a 90 day basis. The output here assumes the value you enter is the value the lender uses.
Before relying on a figure, it is worth establishing which basis your lender applies. 90 and 180 day valuations explained →
Behind the numbers
What the rate and the deposit on this calculator are based on.
- Commercial mortgage rates the indicative tiers by loan to value that sit behind the entry rate.
- Commercial mortgage deposit 25% to 40% by asset, and why the valuation basis sets the real figure.
- Commercial mortgage refinance if you already have a facility and want to reprice it.
