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What STSL means on your payslip
If you've spotted STSL on your payslip and wondered what it is, here's the short answer: it stands for Study and Training Support Loans, and it's money your employer is withholding from your pay to go towards repaying a government study or training loan. It is not an extra tax or a fee — it's a repayment on a loan you already have.
STSL is collected together with your PAYG withholding and reported to the ATO through Single Touch Payroll. On some payslips it shows as its own line; on others it's combined with tax.
Which loans STSL covers
- HECS-HELP — the most common, for Commonwealth-supported university places
- FEE-HELP, SA-HELP, OS-HELP — other HELP loans
- VET Student Loans — for vocational education and training
- Trade Support Loans / Australian Apprenticeship Support Loans
- Student Financial Supplement Scheme (older loans)
How STSL is withheld
When you start a job, your tax file number declaration asks whether you have a study or training loan. If you do, your employer withholds a bit extra from each pay — the STSL amount — based on the ATO's repayment income thresholds and rates for the year. The idea is to spread your likely compulsory repayment across the year so you don't get a large bill when you lodge your tax return.
It's an estimate until tax time
STSL withheld during the year is an estimate. Your actual compulsory repayment is calculated when you lodge your tax return based on your repayment income — so you may get some back, or owe a little more, at that point.
STSL vs PAYG tax
They travel together but do different jobs. PAYG withholding is income tax withheld from your pay. STSL is an additional amount withheld to cover your study/training loan repayment. Both are sent to the ATO by your employer; the ATO applies the STSL portion to your loan when your return is assessed.
Common questions employers get
Employees often ask why STSL suddenly appears (usually because income crossed the repayment threshold), why it changed (thresholds and pay levels move), or how to stop it near the end of a loan. The answers generally come back to the ATO's thresholds and what the employee declared — payroll simply applies the correct withholding.
Key takeaways
- STSL = Study and Training Support Loans — a study/training loan repayment withheld from pay.
- It covers HECS-HELP and other HELP loans, VET Student Loans and Trade Support Loans.
- It's withheld with PAYG and reported via STP; the final repayment is set at tax time.
- It's a loan repayment, not an extra tax or fee.
For employers, STSL is one more reason accurate payroll matters. RosterElf's payroll integration sends correct hours and pay to your STP-enabled payroll system so withholding is calculated on the right figures.
