You don’t need anything fancy to start with. Most people just use a basic spreadsheet. Write down what you expect to come in each month and what you know you’ll need to pay out, then see what’s left. It might not be perfect, and that’s fine. The main thing is having something you can actually use and understand.

For most businesses, once a month is a good starting point.

That keeps things up to date without becoming another job on your to-do list. If you’re growing quickly, making a big investment or keeping a close eye on cash, you might find it useful to review it more often.

The important thing is that it’s current enough to help you make decisions.

The first step is knowing they’re coming.

Many businesses have quieter periods throughout the year, but they only become a problem when they’re unexpected. A good forecast helps you spot potential gaps in advance, giving you time to plan, adjust spending or explore funding options if needed.

It’s much easier to manage cash flow when you’re looking ahead rather than reacting at the last minute.

One of the most common is being a little too optimistic.

Businesses often expect customers to pay quicker than they actually do, or underestimate future costs. Another mistake is assuming that because the business is profitable, there will always be cash available.

A forecast only works if it’s realistic and updated regularly.