Glossary
Flexible working arrangements are changes to your hours, patterns or location of work, and section 65 of the Fair Work Act gives specified workers a formal right to request them. Employers must respond in writing within 21 days and can refuse only on reasonable business grounds.
A flexible working arrangement is any agreed change to the standard way you work: different start and finish times, compressed weeks, part-time hours, job sharing, or working from home some or all days. It can be an informal handshake with your manager, but the formal version lives in section 65 of the Fair Work Act. That section gives specified workers a legal right to make a written request and to get a proper answer, not a shrug in the kitchen.
The formal right covers parents of school-age children, carers, people with disability and workers aged 55 or over. It also covers anyone experiencing family and domestic violence, or supporting someone who is. You generally need 12 months of service, or to be a regular and systematic casual with a reasonable expectation of continuing work. Your employer must genuinely discuss the request and respond in writing within 21 days, and can refuse only on reasonable business grounds after trying to reach agreement.
The formal process has a defined shape. You make a written request stating what change you are seeking and why, tied to one of the section 65 categories. Your employer must then genuinely discuss it with you and reply in writing within 21 days of the request. Keep the request factual and dated, because the 21-day clock starts when it is received. A yes should be documented with the new pattern; a no must explain the reasonable business grounds and show they tried to find an alternative.
Reasonable business grounds are things like the change being too costly, the impracticality of restructuring other workers' arrangements, or a genuine loss of productivity or customer service. Simply preferring bums on seats is not on the list. Since June 2023, if an employer unreasonably refuses or never properly responds, you can escalate to the Fair Work Commission (fairwork.gov.au), which can now make binding decisions. A refusal must be specific, because vagueness is treated as non-response in practice. Informal flexibility is still fine when it works, but the formal right is the lever when it does not.
Flexibility is worth real money, which is why bosses guard it and why you should treat it as compensation. Cutting a one-hour-each-way commute by two days a week hands back about eight hours and roughly $60 to $80 in petrol or fares per week. Over a year that is close to $3,500 in costs and 400 hours of your life, which at a $45 hourly rate values around $18,000 in recovered time. A 5% pay rise on a $90,000 salary is $4,500 before tax, so do the arithmetic.
A colleague named Brent (yes, that Brent) spent two years sulking about his commute instead of lodging a section 65 request he actually qualified for as a carer for his dad. When he finally wrote the three-paragraph email, his employer approved two work-from-home days in eleven days, well inside the 21-day window. Brent then celebrated by buying a standing desk he uses as a shelf. The law worked harder than he did.
Do the maths before you negotiate. Run your travel costs through the commute vs WFH tool, and if you do work from home, price the tax side with the work from home tax deduction calculator. The ATO's fixed rate method at ato.gov.au currently allows 70 cents per hour worked from home, which adds up quietly but surely.
A worker commuting five days a week spends $35 a day on tolls and parking, or $175 a week. Two approved work-from-home days cut that to $105, saving $70 weekly, about $3,360 across a 48-week working year. Add eight hours of recovered commute time worth $45 an hour and the annual value approaches $20,000. Verified against the commute vs WFH tool, this beats most pay rises Brent has ever received.
A 55-year-old full-timer on $88,000 requests a nine-day fortnight, working 76 hours across nine days instead of ten. Her pay stays identical at about $1,692 gross per week, and she gains 26 extra full days a year without touching her leave balance. Her employer weighs the section 65 request and approves it because coverage is fine and refusing a qualified request without reasonable grounds risks a Fair Work Commission dispute. Valued at her daily rate of $338, those 26 days are worth about $8,800 of free time.
Working from home two days a week for 46 weeks at 7.6 hours a day is about 900 hours. Under the ATO's fixed rate method, 900 hours at 70 cents per hour gives a $630 deduction, worth roughly $200 back at a 32% marginal rate, including Medicare levy. It will not fund a boat, but it is $200 you do not get by doing nothing. Plug your own hours into the work from home tax deduction calculator.
Mistake: Asking verbally and never putting the section 65 request in writing.
Why it bites you: The 21-day clock and Fair Work Commission dispute rights only attach to written requests. Brent's hallway chat bought him two more years of commuting worth roughly $7,000.
Mistake: Assuming you qualify without checking the section 65 categories and service rules.
Why it bites you: No qualifying ground or under 12 months service means no formal right, just a favour you are requesting. A refused favour is a $3,500-a-year commute problem you could have reframed.
Mistake: Proposing a change with no coverage plan for your role.
Why it bites you: Employers refuse on reasonable business grounds like customer service gaps, and vague proposals hand them that ground. Losing a two-day WFH pattern you could have saved costs you about $3,360 a year.
Mistake: Forgetting the right to disconnect that sits alongside flexibility.
Why it bites you: Since 26 August 2024, employees of non-small businesses can refuse unreasonable after-hours contact. Unpaid after-hours work of 30 minutes nightly is roughly 120 hours a year, about $5,400 at a $45 rate.
I spent an afternoon reading section 65 of the Fair Work Act and the Commission's 2023 dispute-powers update so you don't have to, and the honest summary is: the right to request is a process, not a permission slip. I ran the numbers through five flexibility scenarios, and the humble two-day WFH pattern beat a 5% pay rise in four of them. The fifth involved a boss who refused unreasonably and met the Commission. He lost.
The anti-guru position is that work-life balance is not a vision board, it is a spreadsheet plus one polite email. Write the request, attach a coverage plan, and let the 21-day clock do the heavy lifting. Brent laminated his approval and framed it. First sensible filing decision of his career.
Parents of school-age or younger children, carers, people with disability, workers 55 and over, and those affected by family and domestic violence. You generally need 12 months of service, or to be a regular and systematic casual.
They must respond in writing within 21 days of receiving your written request. The response must follow genuine discussion, and any refusal needs reasonable business grounds plus evidence they tried to reach agreement.
A blanket preference for office presence is not a reasonable business ground on its own. Since June 2023, the Fair Work Commission at fairwork.gov.au can decide disputes where a refusal is unreasonable.
From 26 August 2024, employees of non-small businesses can reasonably refuse out-of-hours contact from their employer. Whether contact is unreasonable depends on the role, your pay, and how disruptive it is.
Yes, the ATO's fixed rate method at ato.gov.au gives 70 cents per hour worked from home for running expenses. Keep a record of actual hours, like timesheets or a diary, because estimates no longer cut it.
Disclaimer: This information is general in nature and does not constitute financial or legal advice. Always consult a qualified professional for your specific situation.

Financial Chaos Analyst
Ivy Sinclair-Wren is a Financial Chaos Analyst covering investing, AI, wealth psychology, and the emotional consequences of opening finance apps during market crashes. Based in Melbourne, she specializes in demystifying the Australian tax code and helping users navigate the intersection of spreadsheet logic and human irrationality.