Business loan calculator

Use our business loan calculator to see how much your could borrow and the cost of the loan.  Understand what your monthly repayments are likely to look like, as well as the total cost including interest. Get the funding you need to power your business.

What do you need the funding for?

Funding for covering costs e.g. tax or payroll. These are typically unsecured loans.

For how long do you want to pay back your loan?

£ 25,000

Interest rate

Typical business loans to cover costs range from 7% - 16% APR depending on the duration, amount and lender.

Loan breakdown

Loan amount

£ -

Total interest amount

£ - 11% APR over a 3 years

Total repayable

£ -

Total monthly repayment

£ - / month

How much can I borrow on a buy to let mortgage? 

The amount you can borrow on a buy to let mortgage depends on various factors, including the property's value, your rental income projections, and your financial circumstances.

Typically on a residential buy to let you can expect to get a loan to value of 65% with high street banks, some specialised and tier 2 lenders may offer 75% loan to value. This effectively means that you could borrow between 65% - 75% of the property’s value. 

Some lenders may also want to see a multiplier of annual rental income to determine how much you can borrow with a residential buy to lets. For example, some lenders will want your annual rental income from the property to cover 125% of the annual cost of the mortgage.  

How much you can borrow will also depend on factors such as:

  • Any other existing debt you may have, either through your business, or personal debt, depending on whether you apply through a company or as an individual
  • Your business’ revenue, or personal income, depending on how you apply
  • Your business credit score or personal credit score


Estimate how much your business can borrow

Check your company credit score eligibility

Calculate monthly repayments for a business loan

How does a buy to let mortgage calculator work? 

You can use the buy to let mortgage calculator to understand the total cost of a mortgage. This will help you to understand how much you can borrow by calculating the following information:

  • Total loan amount
  • The total interest on the loan
  • The total amount you’re likely to repay 
  • What monthly repayments might look like 

To use the buy to let mortgage calculator, you’ll need to have an idea of how much the property will cost, how much of a deposit you have and the length of the loan term. 

Remember, the buy to let mortgage calculator is indicative. To get the actual rates you could be offered, you'll need to apply for funding first. 

What rates can I get with a buy to let mortgage? 

Buy to let mortgage rates can vary depending on the lender, your creditworthiness, and the loan to value (LTV) ratio. Generally, interest rates for buy to let mortgages tend to be higher than those for standard residential mortgages. It's a good idea to compare rates from different lenders to find the best option. that suits your business. You can use Capitalise to apply up to 4 lenders in just one application so you can easily compare to find the best rates for a buy to let mortgage.

What will my monthly repayments be for a buy to let mortgage? 

Your monthly mortgage repayments on a buy to let property depend on the loan amount, interest rate, and the length of the mortgage term. By using the buy to let mortgage calculator, you can easily determine your estimated monthly repayments. This information will be important for budgeting and ensuring you have enough cash flow

What deposit is needed for a buy to let mortgage?

Typically, buy to let mortgages require a larger deposit than you may be used to with a residential mortgage. Depending on which lenders you apply to, you will need a minimum deposit of between 25%-35% of the property's purchase price. Having a substantial deposit more than 35% will improve your chances of securing a mortgage and may reduce the interest rates you’re offered.

Are there any other considerations to be eligible for a buy to let mortgage?

If you’re looking for a buy to let mortgage, bear in mind that lenders are likely to want more information than a standard business loan. Try to pull together the following information for your application:

  • Details of any experience you have in the property sector
  • Gross rental income of the property 
  • Structure of the purchase 
  • Property location
  • Valuation of the property

Looking for something else? Try our other loan calculators

How much will a buy to let mortgage cost?

You can calculate how much your buy to let mortgage will cost using the following formula: 

Deposit + total loan amount + total interest + any additional fees

You can use the buy to let mortgage calculator above to get an estimate of how much it will cost and how much you can expect to repay each month. 

You should also bear in mind that a buy to let mortgage will include additional costs such as solicitor fees, valuations and property survey. 

What is the formula for buy-to-let stress test?

The formula for the buy to let stress test involves calculating whether the rental income from the property is sufficient to cover the mortgage payments, factoring in a stress scenario where interest rates may rise.

Stress test calculation

1. Calculate the rental income

Determine the potential rental income from the property. This is usually based on market rates for similar properties in the area.

2. Apply the interest coverage ratio (ICR)

The ICR is the ratio between the rental income and the mortgage payments. Lenders typically require the rental income to cover a certain percentage of the mortgage payments, often between 125% to 145%.

Let's use the following example: 

Property value = £200,000
Mortgage term = 20 years
Interest rate = 5%
Monthly mortgage repayment: £1,319 

So if your mortgage repayments for the property are £1,319 per calendar month (pcm) and the lender requires an ICR of 125%, you can calculate the ICR like this: 

1319 x 1.25 = 1648.75

This would mean the potential rental income of the property would need to be at least £1,648.75 pcm to meet the lender’s requirements. 

3. Apply stress test
As mortgage rates can fluctuate, lenders may also add a stress test rate to their affordability calculation. This is usually the mortgage interest rate plus a percentage, representing a potential increase in interest rates.

It's important to note that the specific stress test rate used in the calculation may vary depending on the lender's criteria and the market conditions.
In this example, we’ll assume that the stress test rate is 6%. 

Property value = £200,000
Mortgage term = 20 years
Interest rate = 6%
Monthly mortgage repayment: £1432.  

This means that if the potential rental income of the property is less than £1432, then the buy to let mortgage might not get approved. 

Get started for free.

Apply for a buy to let mortgage

Frequently asked questions

Buy to let affordability is typically calculated based on the potential rental income of the property and the landlord's ability to cover mortgage repayments. Lenders usually require the rental income to be a certain percentage higher than the mortgage payments, often around 125%. This ensures there's a buffer to cover maintenance costs, void periods, and other expenses.

The amount of rent needed for a buy to let mortgage depends on the lender's criteria and the specific terms of the mortgage. You can use the stress test calculation above to see how much you would need in rental income.

The let to buy mortgage calculator is a tool that you can use to understand the potential costs and affordability of a let to buy mortgage. The calculator will take into account factors such as the property's cost, interest rate of the loan and term length to give you an estimation of how much it will cost per month and in total. 

No, you won’t be able to get a buy to let without a deposit. Lenders will require you to have at least 25% of the property’s purchase price, in some cases this will be more.