Last updated: 09 Nov 2026

FREE BUSINESS LOAN CALCULATOR

Business loan calculator

Our business loan calculator shows your monthly repayments, total interest and APR in seconds, so you know what a loan will cost before you apply.

✅ Compare business loans from 130+ UK lenders
✅ See how much you could borrow
✅ Apply for the loan most suitable for your business

Business loan calculator

Enter the loan terms below to see your estimated repayments.

How much do you want to borrow?

£

How long do you want to pay your loan back for?

What is the annual interest rate?

Loan amount£50,000
Total interest£9,333
Annual interest rate17%
Monthly interest rate1.417%
Daily interest rate0.0466%
Factor rate1.1867
Flat rate9.33%
Effective APR17.00%
Daily repayment£82.41
Annual repayment£29,667

£2,472 monthly repayment

Capitalise is trusted by 200,000+ UK businesses

  • 130+ UK lenders

  • Business credit data powered by Experian

  • £2bn in funding approved

  • FCA regulated since 2016

How does our business loan calculator work?

Our business loan calculator works out your repayments on a business loan from three figures: how much you want to borrow, how long you want to repay it over and the annual interest rate. It then shows your daily, monthly and annual repayments, the total interest you'll pay and the equivalent APR, flat rate and factor rate.

When you sign up to Capitalise for Business, we go a step further and use your Experian business credit profile and publicly available data to show the funding your business could be eligible for.

What do the business loan calculator results mean?

Each result shows the cost of the same loan in a different way, which helps you compare offers that are quoted differently by lenders.

  • Total interest is the amount you'll pay on top of what you borrow.

  • Effective APR is the annual cost of the loan as a percentage, and it's the fairest way to compare loans with different terms.

  • Flat rate is the total interest divided by the amount borrowed, spread evenly across each year of the loan.

  • Factor rate is the total you repay divided by the amount you borrow, so a factor rate of 1.19 means repaying £1.19 for every £1 borrowed.

Some lenders quote a factor rate or a flat rate instead of an APR. Testing different interest rates in the calculator shows you which APR a quote is really equal to.

What interest rate should I enter?

The interest rate you enter should be close to what a lender is likely to offer your business. As an example, unsecured business loans in the UK typically have APRs of around 9% to 36%, although some rates can be higher. Secured business loans typically range from around 6% to 15% APR.

Your actual rate depends on the lender, your turnover, your trading history and your business credit score, so it's worth testing a few rates to see how your repayments change. Our guide to business loan interest rates explains what affects the rate you're offered.

How much can my business borrow?

The amount your business can borrow depends on several factors such as how long you've been trading, your turnover and profitability, business credit score, existing debts, cash flow, and whether you can offer security. As a general guide, unsecured lenders may offer up to 25-30% of your annual turnover, while secured loans and commercial property finance can support much higher borrowing amounts. For the most accurate estimate, you can check your eligibility for funding for free with a Capitalise account.

How do I apply for a business loan?

  • Green circle with a white number "1" in the center.

    Check how much you can borrow

    Run a free eligibility check using your Capitalise account to see your estimated borrowing capacity and the finance options available to your business.

  • Green circle with white number "2" in the center.

    Submit your application

    Complete one simple application and we'll match you with lenders that fit your business profile and funding needs. Our team will guide you through your options, answer your questions, and help you find the right solution.

  • Green circle with the white number 3 in the center.

    Compare offers and receive funding

    Review any offers you receive from lenders, choose the best option for your business, and receive funds once approved.

How much does a business loan actually cost?

The cost of a business loan depends on the amount you borrow, the term, the interest rate and any lender fees. A longer term lowers your monthly repayments, but you pay interest for longer, so the total cost goes up.

This table shows how the term changes the cost of a £50,000 loan at 8% interest.

Term (£50,000 at 8%)

Monthly repayment

Total interest

Total repayment

1 year

£4,349.42

£2,193.06

£52,193.06

2 years

£2,261.36

£4,272.75

£54,272.75

3 years

£1,566.82

£6,405.46

£56,405.46

5 years

£1,013.82

£10,829.18

£60,829.18

These figures are examples only and exclude lender fees. Choosing the 5 year term here cuts your monthly repayment by more than £550 compared with 3 years, but adds over £4,400 in interest.

What documents do I need to apply?

Most lenders ask for broadly the same set of documents. Having these ready before you apply makes the process faster and reduces delays.

  • 6 months of business bank statements (some lenders ask for 12)

  • Your last two years of filed accounts, or management accounts if not yet available

  • Proof of identity and address for all directors

  • A clear explanation of what the funds will be used for

How to calculate the cost of a business loan?

  • Green hand icon with a pound symbol above, suggesting money or financial assistance.

    Loan amount

    Enter how much your business needs to borrow.

  • Green bar chart with a zigzag line graph indicating upward trend.

    Interest rate

    Select the annual interest rate (from 0.1% up to 99%)

  • Green calendar icon with a simplistic design, featuring grid lines representing days and two tabs on top symbolizing a spiral-bound calendar.

    Repayment term

    Choose how long you want to spread the repayments for.

See how much your business could borrow, then compare your options from 130+ lenders

Frequently Asked Questions

Page last reviewed on by Paul Surtees