Business
Why Working More Hours Isn't Making You More Money
Why more hours stop paying off, the signs you've hit your energy ceiling, and a one-week experiment to find your best hours.
Quick answer
Why am I working harder than ever but not earning more?
Past a certain point, extra hours add less and less. Research on working hours shows output per hour falls once weeks run long, and tired hours tend to produce rework, reactive decisions and less strategic thinking. Income usually grows from better decisions in your best hours, not from adding more worn-out ones at the end of the day.
Key takeaways
- Output rose in step with hours up to about 49 hours a week in one classic study, then rose more slowly, and 70 hours produced little more than 56.
- The hours you add at night are usually your lowest-quality hours, which makes them the most likely to create rework.
- Founders who can't switch off after work tend to recover less, sleep worse and come back to the business depleted.
- Income tends to come from offers, pricing, sales and strategy, which all need your sharpest thinking rather than your longest days.
- A one-week energy and output experiment shows you your peak hours so you can protect them.
You add another evening. Then a weekend morning. Then a late night “just to catch up”. The calendar gets fuller and the bank balance doesn’t move.
If that sounds familiar, there’s a reason. Past a certain point, extra hours add less and less, and the hours you add when you’re tired often cost more than they earn.
Is there a limit to how many hours are useful?
There is, and it’s lower than most founders think.
One of the clearest studies comes from an unusual place: First World War munitions factories, where output was carefully measured. When economist John Pencavel reanalysed the data, he found output kept pace with hours up to about 49 hours a week. After that, output still rose, but more slowly. At 70 hours, workers produced little more than they did at 56. And having no day of rest each week damaged output.
This was factory work a century ago, so it isn’t a direct match for running a business. But the shape of the curve is worth taking seriously. The 60th hour of your week is not worth what the 20th was.
Why do extra hours stop paying off for founders?
Because the work that grows your income is thinking work, and thinking is what suffers first when you’re tired.
Your best hours come first
Most people have a window in the day when they think most clearly. For many it’s the morning. If that window goes to email, and your strategy happens at 9pm, your business gets your worst thinking on its most important problems.
Tired work creates rework
A proposal written at 11pm gets rewritten at 9am. A late-night social post gets deleted. A rushed client email causes a week of back-and-forth. The hours look productive on the day and cost you later.
You stop recovering
A 2017 analysis of 91 study samples linked switching off from work after hours to better recovery, health and sleep. Working into the evening makes switching off harder. You start the next day already behind on energy, and the cycle continues.
Busy isn’t the same as productive
Busy is answering every message within the hour. Productive is moving the three things that change your revenue this quarter. You can be very busy and barely productive for months.
A simple test: at the end of today, write down the one thing you did that will still matter in 90 days. If you can’t name one, the day was busy, not productive. That’s not a character flaw. It’s a planning problem, and planning problems can be fixed.
What are the signs you’ve hit your energy ceiling?
You may have hit your ceiling if:
- Income has flatlined while your hours have climbed.
- You’re redoing work you did when you were tired.
- You can’t think strategically anymore. You only react.
- Rest feels impossible because there’s always more to do.
If you ticked three or four, more hours won’t solve this. Different hours might.
What actually grows a business?
Income tends to come from a handful of things: the right offer, the right price, a working sales process and clear strategy. None of these improve because you were online at 10pm.
Energy before hours
Plan your week around when you’re sharpest. Put sales calls, pricing decisions and creative work in those windows. Put admin in the rest.
Cut, systemise, outsource
Every hour you spend on work someone else could do 80% as well is an hour taken from work only you can do. Run a quick audit: list your tasks for two weeks, then sort them into cut, systemise, outsource and keep.
Lead from a full cup
I’ve come to see two kinds of work. Light work is work you’re aligned with: even when it’s demanding, it gives back some energy. Heavy work is work you’re fighting: even short stints drain you. Most founders who feel like they’re working harder for less are doing a lot of heavy work. Shifting the mix changes your energy, and better energy changes your decisions.
How can you find your best hours? A one-week experiment
For five working days, keep a simple log. At the end of each two-hour block, score two things out of 5.
One-week energy and output log
| Time block | Energy (1 to 5) | Output: did I move something that matters? (1 to 5) |
|---|---|---|
| 8 to 10am | ||
| 10am to 12pm | ||
| 12 to 2pm | ||
| 2 to 4pm | ||
| 4 to 6pm | ||
| After 6pm |
At the end of the week, circle the blocks where both scores are 4 or 5. Those are your peak hours. Next week, protect them. No meetings, no email, no “quick calls”. Put your highest-value work there and see what happens.
If you track your menstrual cycle, keep the log going for a few cycles. Some women find their peak hours shift across the month. Others don’t. Your own data is the only way to know.
Why does money stress make this worse?
Because money is health too, and it took me a long time to see it.
The times I’ve been financially unhealthy have been some of the lowest points of my life. They were the times I was shortest with my kids, rudest to my partner and hardest on myself. Not because I was weak, but because I hadn’t yet understood that money wasn’t separate from my health.
When income feels tight, the instinct is to work more. That’s understandable. But money worry plus long hours plus poor sleep is a heavy load to think clearly under, and clear thinking is exactly what you need to fix an income problem. Sometimes the most profitable thing you can do is stop, sleep, and look at the numbers with fresh eyes.
What if you can’t control your hours?
Many founders are also parents, carers or partners, and some hours simply aren’t yours to move. School pick-up, a sick child or a partner’s shifts can blow up the neatest plan.
That’s fine. You don’t need a perfect week. You need to know which two or three blocks are your best, and to protect those first. If you only get one peak block a day, put your single most important task in it. The rest of the day can be as messy as it needs to be.
What should you do with the hours you free up?
Not more work. At least not straight away.
Use some of them to recover: a walk, a real lunch, a finish time you stick to. Use the rest to think. Founders who are always doing rarely have time to step back and ask whether the business is pointed in the right direction.
Where can you get support with this?
Changing how you work is hard on your own, because the pull back to “just one more hour” is strong. The Conscious Founders Club is my 12-week group coaching experience for founders, CEOs and high-performing women, with six frameworks and live group calls every two weeks. Together we work on how you plan, lead and earn, around your energy rather than in spite of it. If you’re not sure where to start, book a call with me.
“So you're working smarter and not harder.”
For the bigger picture, read how to run a business without burning out or what a feminine business model is.
Sources
This article is general information, not medical advice. Talk to your GP or another qualified health professional about your own health. Read the medical disclaimer.
