The hard part of a side business usually isn't the work. It's fitting it around a job that already takes most of your energy, along with everything else going on in your life.
You don't need to give up sleep or every weekend. You need a few hours you can rely on, a clear idea of what to do with them and a way to tell whether it's working. This guide sets out a weekly routine you can keep up, and how to adjust it as the business grows.
How many hours a week does a side business need?
For most people starting out, 5–8 hours a week is enough to make real progress and little enough to keep going for months. That's roughly an hour on two or three weekday mornings or evenings, plus a two to three hour block at the weekend.
Regular hours beat big bursts. Six hours every week for six months adds up to about 150 hours, which is plenty of time to test an idea, find your first customers and shape a simple offer. Twenty hours one week followed by nothing for three usually gets you less.
To find the time, track an ordinary week honestly. Most people find hours in TV, scrolling, a commute they could use differently, or an evening that's currently unplanned. Swap rather than add. Decide what you're giving up, so the business doesn't quietly come out of your sleep.
A sample weekly routine for a side business
Here's an example of what about six hours can look like. Treat it as a starting point and move the blocks around your job and home life.
- Sunday, 30 minutes: review last week and choose this week's one priority.
- Monday, 45 minutes before work: focused time on the priority, such as writing your offer or building a simple page.
- Tuesday lunch, 30 minutes: admin and quick replies.
- Wednesday evening, 1 hour: customer work or outreach.
- Thursday: night off.
- Friday lunch, 30 minutes: small jobs from your list.
- Saturday morning, 2–3 hours: your biggest block for deeper work or doing customer work.
Choose one priority a week
With so few hours, a long to-do list works against you. Each Sunday, pick the one thing that would move the business forward most this week and give it your best session. Anything else you get done is a bonus.
Good priorities are specific and you can tell when they're finished: speak to three potential customers, publish your prices, message five past contacts. 'Work on the website' isn't a priority. It's a category.
If you're not sure what matters most early on, it's nearly always talking to customers. Our guide on how to get your first customers has practical ways to start.
Batch tasks and use your lunch breaks
Every switch between tasks costs a few minutes of getting back into it, and you don't have many to spare. Group similar jobs together. Write a week of social posts in one go, answer messages in one sitting, and do your bookkeeping once a week rather than after every sale.
Lunch breaks are good for small, quick tasks: replying to a customer, ordering stock, scheduling a post or booking a call. Use your own phone or laptop rather than work equipment, and keep business calls out of work time. If you haven't checked what your contract allows, read can you start a business while employed first.
Save the thinking work, like planning, writing or pricing, for a block where you won't be interrupted.
Early mornings or evenings?
Neither is better. It depends on when you have energy, and it's worth testing each for two weeks rather than guessing.
Mornings suit people who wake easily and want to give the business their freshest hour before work takes over. The risk is cutting sleep to make it happen. Evenings suit people who are slow to get going, but by 8pm plenty of people find their brain has had enough. If that's you, use evenings for lighter tasks and keep harder work for the weekend.
Whichever you pick, start at the same time each day. A routine you don't have to decide about is far easier to stick to.
Protect your energy and avoid burnout
Running a business alongside a job is a long game, and burnout tends to creep in quietly. You stop enjoying it, you dread your sessions, you feel tired all the time, or your day job starts to slip. Doing your job well matters here too. Acas points out that extra work outside your job becomes a problem if it affects how you do your main role.
- Keep at least one evening and most of one weekend day completely free.
- Guard your sleep. Losing an hour a night to the business is rarely worth it.
- Say no to new commitments for a few months, and tell people honestly why.
- Take a full week off the business every couple of months.
- If you feel worn out for weeks at a time, cut your hours back before you push harder.
Track your progress every week
Spend 15 minutes on Sunday answering three questions. Did I finish this week's priority? What did I learn from customers? What's the one priority for next week?
Track a few numbers as well, such as customer conversations, sales and income. A simple spreadsheet is enough. Seeing a number slowly rise keeps you going, and seeing it stay flat tells you something needs to change.
It's much easier to show up when someone is expecting an update. A friend, a small group or some form of accountability for entrepreneurs gives your weekly review a deadline. Exitnine is built around this kind of weekly plan and check-in, if you'd rather not organise it yourself.
When to consider reducing your hours at work
At some point the business may need more than 8 hours a week. Signs include turning work away, customers waiting too long for you, or income that keeps growing even with limited time.
Before you quit, think about a middle step. Every employee has the right to ask for flexible working from their first day, including fewer hours or a four day week. Put it in writing and say it's a statutory request. You can make up to two requests in any 12 months, and your employer has to decide within two months, including any appeal. They can refuse for a business reason, so show how your work will be covered.
Dropping a day means a smaller salary, so check your business income can cover the gap. The quit your job calculator helps you see the numbers.
Questions people ask
How many hours a week should I spend on my side business?
5–8 focused hours a week is a realistic starting point for most people with a full-time job. Doing it every week matters more than the total.
Is it better to work on my business in the morning or evening?
Whichever matches your energy. Try each for two weeks, then keep the harder tasks for the time of day you're sharpest.
Can I work on my side business during my lunch break?
Usually, yes, as your lunch break is your own time. Use your own phone or laptop and check your contract for any rules on outside work.
How do I avoid burnout running a side business?
Keep fixed time off every week, protect your sleep, focus on one priority and take regular breaks from the business. If you're worn out for weeks at a time, cut back before pushing harder.
When should I go part time to grow my business?
When your time, not demand, is what's holding the business back, and your income can cover the pay you'd lose. You can ask your employer for reduced hours with a flexible working request.