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Business Loan Calculator Australia — FY 2025-26

The Business Loan Repayment Calculator Australia helps Australian business owners forecast loan repayments and understand the true cost of borrowing.

Rates sourced from the ATO & state revenue officesUpdated July 2026Free · instant · no login

Quick Answer

You can model secured term loans, unsecured business loans, equipment finance, and commercial property loans. The calculator works for any amortising loan with a fixed or variable interest rate.

People Also Ask

You can model secured term loans, unsecured business loans, equipment finance, and commercial property loans. The calculator works for any amortising loan with a fixed or variable interest rate.
Most Australian business loans have variable rates that move with the RBA cash rate. When the cash rate rises, lenders typically increase their rates, raising your repayment amount and total interest cost.
Loan establishment fees are generally deductible over the life of the loan rather than in a single year. The ATO treats them as borrowing expenses that must be amortised over the loan term or 5 years, whichever is shorter.
Secured loans backed by assets such as property or equipment typically have lower interest rates because the lender faces less risk. Unsecured loans carry higher rates and often have shorter terms.
5 min readLast updated: 2026-07-12

About the Business Loan Repayment Calculator Calculator

The Business Loan Repayment Calculator Australia helps Australian business owners forecast loan repayments and understand the true cost of borrowing. Whether you are expanding your operations, purchasing equipment, or managing cash flow, this tool provides accurate repayment estimates you can rely on. The ATO allows deductions on interest paid for business-purpose loans, making it essential to track repayments throughout the financial year. Australian businesses borrow under conditions that differ from consumer lending, with the RBA cash rate directly influencing commercial interest rates. This calculator is designed specifically for Australian loan structures including secured and unsecured business loans, equipment finance, and commercial property loans.


What is the Business Loan Repayment Calculator Calculator?

This calculator computes your regular repayment amount using the standard amortisation formula. You input the loan amount, annual interest rate, loan term, and repayment frequency. The tool then returns your scheduled payment, total interest payable, and a full amortisation table showing the declining balance over time. For Australian businesses, loan repayment planning is an integral part of cash flow management. Because interest on business borrowing is generally tax-deductible, keeping accurate records of interest paid each year also makes tax time easier. This calculator helps you compare loan offers, understand the impact of interest rate changes, and choose the repayment frequency that minimises total interest costs. For a quick sanity check before you commit, run your numbers through the Business Loan Repayment Calculator first.


How to Use This Calculator

  1. 1**Enter Loan Amount**: Input the total principal you intend to borrow in Australian dollars. Exclude any establishment fees or lender charges.
  2. 2**Enter Annual Interest Rate**: Provide the interest rate as a percentage per annum. Use the rate quoted by your lender, whether it is fixed or variable.
  3. 3**Select Loan Term**: Choose the number of years for the loan. Typical Australian business loans range from 1 to 15 years for equipment and up to 25 years for commercial property.
  4. 4**Choose Repayment Frequency**: Select monthly, fortnightly, or weekly. Fortnightly or weekly repayments reduce total interest compared to monthly.
  5. 5**Select Loan Structure**: Choose between principal and interest amortisation or interest-only payments for a specified period.
  6. 6**Review the Results**: The tool displays your repayment amount, total interest cost, and a full schedule of payments with principal and interest breakdown for each period.
  7. 7**Model Different Scenarios**: Adjust interest rates, loan amounts, or terms to compare options. Use this data to negotiate with lenders or restructure existing debt.

Worked Australian Example

Practical Example

Consider Adelaide Hospitality Group, a restaurant and bar operator in South Australia. The business is taking out a $250,000 equipment loan to renovate its kitchen and dining area. The lender offers a 7-year term at 8.2% per annum with monthly principal and interest repayments. Using the calculator: loan amount $250,000, term 7 years (84 months), rate 8.2% p.a., monthly payments. The monthly repayment is approximately $3,924. Total interest payable over the loan term is about $79,616, bringing the total cost to $329,616. If the business can negotiate a rate of 7.5% with the same terms, the monthly repayment drops to $3,785 and total interest reduces to $67,940, saving $11,676. The business can deduct the interest portion each year, and by claiming depreciation on the kitchen equipment under ATO rules, it can further reduce its taxable income.


How Our Business Loan Repayment Calculator Calculator Works

A business loan repayment uses the same amortising formula as any principal-and-interest loan, with commercial-specific extras layered on: **Repayment = P × r × (1 + r)^n ÷ ((1 + r)^n − 1)** where **P** is the amount borrowed, **r** the periodic interest rate, and **n** the number of repayments. The calculator then accounts for features common to commercial lending: - **Establishment/upfront fees** — often added to the loan or paid upfront, raising the effective cost. - **Balloon (residual) payment** — a lump sum owed at the end (common on equipment finance), which lowers periodic repayments but leaves a large final amount to refinance or pay. Because early repayments are mostly interest, the calculator also totals interest over the term so you can see the true cost of borrowing, not just the monthly figure. Two factors specific to business lending affect what you'll actually pay: whether the loan is **secured** (lower rate) or **unsecured** (higher rate, faster approval), and your **debt-service coverage** — lenders check your earnings comfortably cover repayments. The estimate assumes a constant rate; variable commercial rates will move your repayments.


When to Use This Calculator

Use this whenever you're financing business growth or assets. **Before applying**, to check the repayment fits your cash flow and to see how loan size, term and rate interact — a longer term eases repayments but costs more interest overall. **When comparing offers**, to weigh a lower rate against establishment fees and balloon terms that change the real cost. **When considering equipment finance with a balloon**, to understand the residual you'll owe at the end. **When testing serviceability**, to confirm your earnings cover repayments before a lender's DSCR check. It suits SMEs, sole traders and anyone weighing commercial finance. Factor in fees and any balloon for the full picture, and re-run it at a higher rate to stress-test a variable loan.


Common Business Loan Repayment Calculator Calculator Questions

You can model secured term loans, unsecured business loans, equipment finance, and commercial property loans. The calculator works for any amortising loan with a fixed or variable interest rate.
Most Australian business loans have variable rates that move with the RBA cash rate. When the cash rate rises, lenders typically increase their rates, raising your repayment amount and total interest cost.
Loan establishment fees are generally deductible over the life of the loan rather than in a single year. The ATO treats them as borrowing expenses that must be amortised over the loan term or 5 years, whichever is shorter.
Secured loans backed by assets such as property or equipment typically have lower interest rates because the lender faces less risk. Unsecured loans carry higher rates and often have shorter terms.
Fixed rates provide certainty for budgeting but may lack flexibility if rates drop. Variable rates can change with the market. Many Australian businesses split their loan between fixed and variable portions to balance risk.


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Reviewed by

BizMetrixs Editorial Team

Australian tax, property & finance research

This Business Loan Calculator Australia calculator provides estimates only. Results are based on ATO 2025-26 published rates and general calculation methods. Individual circumstances may vary. This tool is for informational and educational purposes only and does not constitute financial, tax, or legal advice. For personalised advice, consult a registered tax agent or financial adviser.