Blog Article

12-Month Rolling Forecasts: A Better Way to Plan for Growth

A budget locks in one plan for the year and slowly goes stale. A rolling forecast moves with your business, replacing estimates with real numbers each month so your next decision is always based on where you actually stand.

Hello, welcome everyone to another live. It has been a couple of weeks. We are full throttle in summertime, so it is a great time. I love being with my kids, but it is a crazy schedule. So we are back, and I am excited to talk to you today. If you are new here, my name is Jenn Shaw and I am the owner of All Accounting LLC. At our firm, we really specialize in small and mid-sized construction businesses. Those are typically companies doing between $500,000 and $10 million in revenue. We help them understand their numbers, see where they want to go, and make it real-world easy for them, so they can get back to the things they love in their business and feel in control of their finances. During these lives, we love to break down different topics and talk about how to use this within your company to build momentum in the direction you want to go. Today we are going to talk about 12-month rolling forecasts. So let's dive in.

A 12-month rolling forecast is a little different than a budget. A budget is very fixed. When you do a budget, you get all the heads together, go through each division, and decide what the next year or next quarter is going to look like (it could also be just one or two people going through this). Then you compare it to what you actually did. Although that is helpful, it is not as active, useful, and ongoing as a rolling 12-month forecast. The rolling 12-month forecast is updated on a monthly basis. Once one month falls off, you tack it on to the end. So you are constantly changing and adjusting how things should look.

So it is a looking-forward view, really connecting what you are doing in your numbers and how to make the next decision. This is a great time to look at seasonality within your business. If your spring and summer months are a lot busier than your winter months, showing those differences matters, because every month isn't going to be the same. Maybe your industry is steady, or maybe you just have one month of a dip, but whatever month that is, you put in those actual numbers. For the most part, you are making an educated guess. You look at your labor and forecast: okay, this next quarter we are going to do 15 different projects, and we will look at pricing based on that. Is it 15 large projects, or is it five large projects and 10 smaller ones? You really break it down and chunk it in to see when those things happen. You can also plan out your overhead. If you are looking at potentially hiring someone, it doesn't have to be overhead; perhaps it is a project manager or a new division and you are expanding. You add in those possibilities that you are working toward, and maybe it is something happening in six months. So you have no real expenses coming up for them yet, but at the end of the year you are going to see that change. Each month it gets closer and closer, and hopefully you are getting toward being able to actually afford them. This can also help you look at your capacity. Are you running too low on projects? Do you need to beef up your sales? Are you running too high, and everything is going out the door too quickly? It is really a hybrid between your actual cash and when you may or may not receive your revenue or expenses.

This is not a set-in-stone type of thing. You constantly want to look at it and update it as much as possible with true, factual numbers when you have them. But best-guess scenario, even 60% of where you think it might be is better than not looking at it at all. So really get in the regularity of updating it to keep the momentum of following your numbers. You are replacing those estimates with actuals every month and tying things together with your timing, so you can ensure you have enough money to do payroll. Or if you know that in the next year you are going to have to purchase a piece of equipment, you want to be saving up for that and make sure you have enough profit to cover it. Or if you need to work with the bank and use a loan, you know that is happening and you have time to prepare, time to get your financials tightened up so you can present the best face forward when you are getting these loans. If rolling forecasts are new to you, doing one is great, but you may also want to look at running a different scenario. Your regular scenario, where everything is great, is your base case. Then perhaps you have a conservative case. Maybe you have three clients you are hopeful will pay on time, or that you hope will speed up payment, but maybe they end up being even longer, so instead of net 45 they end up being net 60. That is your conservative case. Or perhaps you know inflation is coming, or there are more tariffs, so you increase the expense side. You just really dial it in as time goes. Again, it is a soft science, and it is not an easy thing. This is not one-and-done, and it is not going to take 30 minutes. You really spend time on it on a regular basis to understand where you want to go.

When you actually pay attention to these things and monitor them on a regular basis, you can really decide and pivot. Maybe hiring this crew and doing the jobs a certain way was working for 20 years, but now in this new world it doesn't. Being able to look at the numbers and decide yes this worked, or no this didn't, and pivot from it, gives you much better guidance. If this still feels overwhelming, or if you just want a nudge and some help to work through these things, that is exactly what we do, and more, by helping you understand your numbers. Because we really feel that when you know your numbers, you can own your future. I hope you enjoyed today and can take some nuggets to your own financials and get comfortable with them. It is not something you can break, but it is great to get in there, dive in, and start that path of forecasting. We will see you next week, and I hope you have a happy 4th of July.

A 12-month rolling forecast is a forward-looking financial plan you update every month. As each month closes, you drop it off and add a new month to the end, so you are always looking a full year ahead. Unlike a budget you set once and measure against, a rolling forecast keeps pace with your business and sharpens the decision you make next.

How is a rolling forecast different from a budget?

A budget is fixed and a rolling forecast moves. A budget is something you build once: you gather the right people, go through each part of the business, and decide what the next quarter or year should look like. Then you compare your actual results against that fixed plan. That comparison is useful, but it looks backward and it goes stale as the year moves on.

A rolling forecast is updated monthly. When a month closes, you replace its estimates with what actually happened and add a fresh month onto the end, so the view always covers the next twelve months. Instead of asking how you did against a plan you set months ago, you are constantly adjusting the plan to match where the business is really heading.

Why do rolling forecasts matter for a construction business?

Construction rarely earns the same amount every month, and a rolling forecast is built to show that. If your spring and summer are far busier than your winter, the forecast reflects those swings month by month instead of averaging them into a flat line. You put real numbers against the busy months and the slow ones, so you can see the dips coming.

It also shows your capacity. Are you running low on booked work and need to push sales, or are you running so hot that jobs are going out the door faster than you can staff them? Because a forecast sits between your profit on paper and the timing of actual cash, it helps you connect the work you win to the money that will actually be in the bank when payroll is due. If you want a refresher on how those numbers fit together, our post on the three core financial reports is a good place to start.

What goes into a rolling forecast?

Mostly educated guesses that you refine as real numbers come in. You are estimating the near future and tightening it every month.

Labor and projects

Start with the work. If you expect 15 projects next quarter, forecast the labor and price them out. The mix matters: 15 large projects looks very different from five large and ten small ones, so break it down by size and by when each job lands.

Overhead and hiring

Plan for the moves you are working toward. If you might bring on a project manager or open a new division in six months, add that cost to the later months. You carry no expense for it today, but as each month gets closer you can see whether the numbers support the hire before you commit.

Cash timing

A forecast is a hybrid of profit and actual cash movement, so timing is the point. Line up when money comes in against when it goes out and you can make sure payroll is covered, save ahead for a piece of equipment, or get your financials tightened up before you approach the bank for a loan.

How do you build scenarios into your forecast?

Once you are comfortable with one forecast, build a few versions so you are ready for more than one outcome.

Base case: your realistic plan, where things go roughly as expected.
Conservative case: slower payment and softer conditions. Clients you hoped would pay on time slip from net 45 to net 60, and cash arrives later than planned.
Cost-increase case: inflation or new tariffs push your expense side up, so you can see the margin impact before it hits.

Adjust these as conditions change. Seeing your numbers as percentages can make the shifts easier to read, which is where common size reporting helps.

How often should you update it, and how accurate does it need to be?

Update it monthly, replacing estimates with actuals as you go. A rolling forecast is a soft science, not a one-and-done task you knock out in 30 minutes. It takes regular attention.

It also does not need to be perfect. A forecast that is even 60 percent of the way to reality is far more useful than not looking at all, and the accuracy improves every month you feed it real numbers. Those actuals are only as good as your books, which is why steady, reconciled records make the whole exercise worthwhile. The real payoff is perspective: when you watch the numbers month after month, you can tell when an approach that worked for 20 years has stopped working, and pivot with evidence instead of a hunch.

Key takeaways

A rolling 12-month forecast updates every month, always looking a full year ahead, while a budget stays fixed.
It is built for seasonality and capacity planning, which suits construction and other project-based work.
Forecast your projects, labor, overhead, and future hires, then focus on the timing of cash.
Build base, conservative, and cost-increase scenarios so you are ready for more than one outcome.
Update monthly and aim for useful, not perfect. Even a rough forecast beats flying blind.

Frequently asked questions

Is a rolling forecast the same as a budget?

No. A budget is set once and used as a fixed benchmark you compare against. A rolling forecast is updated every month and always projects the next twelve months, so it changes as your business changes.

How far ahead does a rolling forecast look?

Always a full year. As each month closes, you add a new month to the end so the window stays at twelve months.

How accurate do the numbers need to be?

They are educated guesses, and that is fine. Even a forecast that is about 60 percent accurate is more useful than none, and it gets sharper each month as you replace estimates with actual results.

What scenarios should I plan for?

Start with a base case, then add a conservative case for slower payments or softer sales, and a cost-increase case for inflation or tariffs. Comparing them shows how much room you have.

Why does this matter for a seasonal or construction business?

Because your months are not identical. A rolling forecast captures busy and slow seasons, flags when capacity is too low or too high, and lines up cash timing so you can cover payroll and plan big purchases.

Ready to build a forecast you will actually use?

If forecasting still feels overwhelming, or you just want a nudge to get started, that is exactly what we do. Budgeting and forecasting are part of our Virtual CFO service, where we help you read your numbers, plan for what is coming, and make your next decision with confidence. Book a call and we will help you get started.

Know your numbers. Own your future.