Flexible work arrangements for chronic illness: making them work

Originally published 29 May 2019. Updated 13 September 2026.

Flexible work arrangements for chronic illness need to account for changing symptoms, not simply move a rigid working day into your home. A later start, a shorter shift or time away for treatment may be more useful than another day on the same laptop in a different room.

Start with what makes work difficult. Then work out which changes could address it, how to request them and what to do when the arrangement needs to change.

The practical suggestions below are options to discuss, not promises of approval. The legal information is US-first, with short notes for Great Britain and Australia. It isn't individual legal or medical advice.

What two days at home changed for me

When I was diagnosed with leukemia in 2015, I initially went out of my way to hide it from my manager and co-workers in the United Nations. I feared that I would experience exclusion due to my ill health and inability to perform my job.

But I soon realized that I couldn't hide my leukemia and that my health was suffering from working full-time at the office. Fortunately, I trusted my manager. After I told him I had leukemia, he was incredibly supportive. He encouraged me to make full use of the flexible work arrangements offered by the United Nations.

While undergoing medical treatment, I was able to cope with working full time, initially at least, by telecommuting two days a week. I scheduled face-to-face activities for the office, and writing and reading for my telecommute days. Some of my best writing has been done at home in my pajamas.

At other points in my management career, whenever I sought to introduce flexible work arrangements, I generally experienced some resistance from my managers. They didn't say no every time, but their hesitation pointed to a more traditional workplace culture.

Those are observations from my experience, not a description of current UN policy. And two days at home was my arrangement at that point in treatment, not a standard schedule for everyone with cancer.

Choose the arrangement around the work barrier

Flexible working can change your hours, working pattern or location. Useful options to discuss include the following. None is a prescription for every chronically ill worker.

• Different start and finish times. Ask about a later start when early treatment appointments conflict with work, or an agreed starting window when a fixed time is the problem. Specify any periods when the job genuinely requires you to be available.
• Remote or hybrid work. Identify tasks that can be done away from the workplace and the access you need to do them. A remote day still needs accessible documents, workable meetings and any necessary equipment.
• Breaks and appointment time. Discuss where breaks fit, how urgent tasks will be covered and how to record time away. A schedule shouldn't leave you negotiating every necessary break from scratch.
• Reduced hours or job sharing. Consider these when changing the timing or location leaves too much work in the day. Agree the responsibilities that fit the new arrangement; don't quietly compress a full-time workload into fewer paid hours.
• Changes within an on-site role. A more predictable shift pattern, adjusted break times or changes to how particular tasks are organized may be worth discussing when the work itself cannot be done remotely.

Compressed hours are different from reduced hours. Doing the same weekly hours over fewer days means longer working days. That may be a poor fit when shorter shifts are what you need.

Keep the conversation specific to the actual job. “The role is on-site” shouldn't end a discussion about shift times or breaks. Equally, describing an arrangement as flexible doesn't make every task possible from home.

Plan for fluctuations, including days you can't work

Build a usual working pattern and a plan for when it doesn't fit. Agree whom to contact, what information they need and which changes can happen without a new negotiation.

For example, a plan could allow a later start within an agreed window, with a written handover instead of an early meeting. It should also say what happens when those changes aren't enough and time off is needed. This is a planning example, not an entitlement to that particular arrangement.

Ask for flexibility that works in practice. A remote-work policy that requires notice far in advance may not address unpredictable symptoms. A fixed daily meeting can undo an otherwise useful agreement about start times.

Being at home doesn't mean being well enough to work. Leave needs its own place in the conversation.

Know which request you're making

A general flexible-working policy and a disability accommodation are different routes. Under the Americans with Disabilities Act (ADA), employers with 15 or more employees generally have accommodation duties toward qualified disabled applicants and employees. For someone doing a job, being qualified includes being able to perform its essential functions, with or without reasonable accommodation. The EEOC's guidance on telework and the ADA explains that working from home can be an accommodation even when there is no general telework program.

A diagnosis of chronic illness doesn't automatically establish the same rights for everyone. But a condition doesn't have to cause the same limitations every day. Under the ADA Amendments Act framework, an episodic condition or one in remission can qualify as a disability if it would substantially limit a major life activity when active.

The employer may choose an effective alternative to the accommodation you prefer. Essential job functions and undue hardship matter; remote work is not guaranteed. These are US federal principles, not a worldwide rule. See the notes for Great Britain and Australia below.

Ask for a change without handing over your whole medical history

Check your employer's accommodation procedure and identify the right contact, which may be your manager, HR or a designated accommodation team. Describe the work barrier and the change you are asking them to consider.

Under the EEOC's accommodation guidance, you don't need special legal language or a written request to begin the ADA process. A written record can still help both sides understand what was requested and agreed.

When the disability or need for accommodation isn't obvious, an employer may ask for relevant supporting documentation. That doesn't usually justify requesting your complete medical records. The EEOC's cancer-at-work guidance explains documentation and confidentiality requirements, including the distinction between what a manager needs to implement an accommodation and private medical information.

Ask who will receive your information and where to send supporting documents. Tell colleagues about changed availability or handovers as needed; that doesn't require telling them your diagnosis. Don't promise yourself that disclosure will make every workplace supportive. Keep the request focused, and seek advice when you need it.

For help finding an opening, our guide to starting an awkward conversation offers ways to approach a difficult discussion. It doesn't replace an accommodation procedure or legal advice.

Write down how the arrangement will work

A useful agreement should be understandable without relying on one manager's memory. Ask for a record covering:

• Hours and location: your usual pattern, any agreed variation and when the arrangement starts.
• Work and communication: responsibilities, necessary availability, meeting access and handovers.
• Breaks, appointments and changes in symptoms: the contact person, notice arrangements and how time away will be recorded.
• Privacy: what colleagues need to know to make the plan work, without unnecessary medical disclosure.
• Review: when to check whether the arrangement is effective and how either side can raise a problem sooner.

Before agreeing to reduced hours, ask for written confirmation of any effect on pay and benefits. A trial period may be useful where there is genuine uncertainty, but it shouldn't become a reason to postpone considering an accommodation you need now.

When a return-to-office policy changes the deal

Don't assume workplace flexibility is moving in one direction. In a September 2024 announcement, Amazon set out a five-day office expectation from 2 January 2025, while noting exceptions including approved remote-work exceptions. That is a documented company policy announcement, not a description of every employer's practice.

For US federal employees, the EEOC and OPM issued telework-accommodation FAQs in February 2026. They say agencies may reassess arrangements and choose effective alternatives, but caution against blanket revocation without individualized assessment. The FAQs concern federal employment under the Rehabilitation Act; they are nonbinding technical assistance, not a new statute or a guarantee of continued remote work.

When your own policy changes, ask how your disability-related request will be assessed and what arrangements apply while it is considered. Keep the existing agreement and written reasons for any proposed change. Don't assume that making a request or complaint automatically suspends an instruction to attend work. Get advice promptly if the change puts you at risk.

Review the support before judging commitment

Use a review to identify what still isn't working. Perhaps the agreed break exists on paper but meetings keep overrunning it. Perhaps the remote days help, but the workload still needs discussion.

Managers should assess the work and the agreed job requirements, rather than treating time visibly online as proof of commitment. Talk about specific difficulties instead of turning every variation in availability into a question of trust.

For someone with an invisible disability, looking well in a meeting doesn't settle whether they need an accommodation. Nor should individual support wait until every colleague can have an identical arrangement. The EEOC distinguishes individual telework accommodations from a general telework program.

Keep expectations realistic and explicit. The ADA does not require removing essential functions or lowering uniformly applied production standards, but an employer may need to provide an accommodation that enables someone to meet them. That distinction is explained in the EEOC's reasonable-accommodation guidance.

Make room for leave and changing needs

Flexibility isn't treatment. The National Cancer Institute explains that cancer-related fatigue can persist despite rest. A schedule change should not become an instruction to work through symptoms that need medical attention.

For eligible employees of covered employers, the US Family and Medical Leave Act (FMLA) provides job-protected leave for qualifying reasons. When medically necessary, this can include intermittent or reduced-schedule leave. FMLA leave may be unpaid or run alongside employer-provided paid leave; eligibility requirements apply. Our explanation of mental health days covers that separate idea, but it is not a substitute for checking your leave rights.

Further accommodations, leave or reassignment to a suitable vacant position may need consideration when an existing arrangement stops being effective. What is required depends on the circumstances; the EEOC guidance covers these options and their limits. An unsuccessful arrangement should not automatically become a conversation about retirement.

I ceased full-time work in 2017. My manager, with the support of HR, had that uncomfortable conversation with me about transition and the difficulties for me to continue working with leukemia. For that, I am grateful. With the support of my employer and my doctors, I finally acknowledged a transition was needed, and I am better off for it.

That was my experience. It isn't a reason to steer other people toward leaving work. Before resigning, accepting a permanent reduction in hours or signing an agreement to leave, seek advice about your own position from a union representative, employment adviser or employment lawyer. Needing a different arrangement is not a personal failure.

Outside the US: different routes to flexible working

Great Britain

Employees have a day-one right to request flexible working, not automatic approval of their preferred arrangement. The duty to make disability-related reasonable adjustments under the Equality Act 2010 is separate from the duty to consider a flexible-working request.

As of September 2026, further flexible-working changes under the Employment Rights Act 2025 are scheduled for 2027. They are not yet in force. Acas tracks the implementation timetable. Northern Ireland has a separate legal framework.

Australia

Under Australia's National Employment Standards, eligible employees with disability can request flexible working arrangements. Full-time and part-time employees generally need 12 months with the same employer; qualifying casual employees have additional criteria. Requests must be in writing, and employers must respond in writing within 21 days. A right to request is not automatic approval. The Fair Work Ombudsman's guidance explains eligibility, refusal requirements and dispute options. Disability-discrimination obligations are a separate consideration.

Sources and reference notes

US employment: EEOC guidance on telework, the ADA Amendments Act, reasonable accommodation and undue hardship, and cancer in the workplace; the joint 2026 federal telework FAQs; and the US Department of Labor's FMLA fact sheet.

Health: National Cancer Institute, Fatigue and Cancer. Brendan's personal account describes his own experience; it is not medical guidance.

Great Britain and Australia: GOV.UK flexible-working requests, the Acas Code of Practice, Acas's Employment Rights Act timetable, and the Fair Work Ombudsman. Company-practice example: Amazon's September 2024 announcement. Sources checked for this September 2026 revision.