The Finance Algorithm
TFA

Variable Income Loan Planner

Calculator

Plan personal loan repayments around irregular freelance or casual income

Free to useNo data storedAI insightsUpdated: February 2026

Freelancer? Contractor? Casual worker? When your income changes month to month, planning loan repayments requires extra care. This calculator helps you find a safe repayment amount based on your income fluctuations.

Enter Your Details

Enter Your Details

$

Your typical monthly income (average over past year)

$

Income in your worst month last year

$

Income in your best month last year

$

Fixed costs you must pay each month

$

How much you want to borrow

%

Rate available for your situation

How long to repay the loan

Real-World Examples

Freelance Designer

Alex earns $3,000-$8,000/month (average $5,500) with $2,800 in fixed expenses. Wants $12,000 for equipment.

Inputs Used:

avg:5,500low:3,000high:8,000expenses:2,800

Safe repayment: $200-$300/month (based on low month leaving buffer). Over 4 years at 11%, that's $13,200 total.

Casual Hospitality Worker

Sam's hours vary: $2,500-$5,000/month (average $3,800), $2,000 fixed expenses. Needs $8,000.

Inputs Used:

avg:3,800low:2,500high:5,000expenses:2,000

Safe repayment: max $350/month. In low months ($500 after expenses), this leaves only $150 buffer - risky. Consider borrowing less.

Frequently Asked Questions

Glossary

Income Volatility
The degree to which your income fluctuates month to month. Higher volatility = more conservative borrowing needed.
Buffer Payments
Extra payments made during high-income months that can be redrawn during low months.
Redraw Facility
Ability to withdraw extra payments you've made back from the loan if needed.

How to Use

  1. 1Enter your average monthly income over the past year
  2. 2Add your lowest and highest earning months
  3. 3Include your fixed monthly expenses
  4. 4Enter the loan amount you need
  5. 5See safe repayment options based on your income range

Key Information

  • Lenders may require 2 years of tax returns for self-employed
  • They assess based on your lowest income, not your average
  • Variable income borrowers often pay higher rates
  • Building a buffer is essential before taking on debt

Pro Tips

  • Base repayments on your lowest month income, not average
  • Pay extra during high-income months to build a buffer or pay off faster
  • Look for loans with free extra repayments and redraw
  • Keep 3-6 months of repayments in accessible savings as backup

Avoid These Mistakes

  • Calculating repayment capacity based on best months
  • Not having a buffer for slow periods
  • Taking on multiple debts that add up to unmanageable payments
  • Not considering seasonal patterns in income

Disclaimer: This calculator provides estimates only and should not be relied upon for financial decisions. Interest rates, fees, and policies change frequently. Always verify information with lenders directly. This is general information, not personal financial advice. Consider seeking advice from a licensed mortgage broker or financial advisor.

Last updated: February 2026

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