How to do cashflow planning/forecasting?

This article explains simply what the easiest and best way is to do cash flow planning.

Written By Joska

Last updated About 1 month ago

How to do cash-flow planning

I really dislike the term cash-flow forecasting because it sounds like guessing what might happen in the bank account. In reality, good cash-flow planning is built on facts, not assumptions.

Your bank balance is a verified and reliable number. When you record completed transactions into your cash-flow plan, you are working with information that is real, cannot be manipulated, and does not mislead you. The accuracy of future dates in your cash-flow plan is always as good as the information you use and how carefully you maintain the plan.

Cash-flow planning is therefore not about predicting the future. It is about combining what has already happened with what is already known.

At GoMonio, our Cashflow Planner is built around this exact idea. You can read more about why cashflow is superior information when compared to bookkeeping information from my thesis.


Why cash-flow planning matters

The real value of cash-flow planning appears in everyday decisions as well as in longer-term strategy.

When your cash-flow plan is always up to date, you can immediately see when an investment is affordable, when cash might become tight, and how today’s decisions affect your future balance.

Most of the information needed for cash-flow planning already exists in your business:
invoices, contracts, orders and confirmed commitments. In addition, business systems such as CRM and ERP tools can provide valuable information about upcoming sales, deliveries and projects.

Cash-flow planning turns this scattered information into one clear timeline of money in and money out.


How to build a simple cash-flow plan

A cash-flow plan does not need to be complicated. Even a very simple structure is enough to give you strong control over your cash.

A practical cash-flow plan is built around five basic rows:

  • opening cash balance

  • operating cash flow

  • investing cash flow

  • financing cash flow

  • closing cash balance

The opening balance is your real bank balance at the start of the day, week or month.
The closing balance is calculated automatically from the opening balance and the cash flows of the period.
The next period always starts from the previous closing balance.

This structure keeps your cash-flow plan easy to read while still covering everything that affects your bank account.

In a digital tool such as GoMonio Cashflow Planner, the calculations happen automatically and the structure is ready from the start.


Record real transactions first

Cash-flow planning should always begin with real, completed transactions.

Your bank statement is the most reliable source. By regularly importing or recording transactions, you create a solid and trustworthy historical view of your cash movements. This history cannot lie and gives you a factual foundation for planning.

You can further improve visibility by using categories, notes and simple visualizations, and by marking past periods clearly. Over time, your cash-flow plan becomes both a planning tool and a practical way to review your bank activity.

You can use excel to make your cashflow planning tool, but tool like GoMonio’s cashflow planner will make it easier and faster for you. I’m planning on building the ultimate excel for cashflow planning someday that, I can share on this blog post for those entrepreneurs who can’t afford tool like this.


Add known future payments

After recording past transactions, the next step is to add what is already known about the future.

These typically include:

  • unpaid sales invoices and their due dates

  • unpaid purchase invoices and their due dates

  • planned investments

  • recurring costs such as insurance, rent and subscriptions

  • tax payments and VAT

  • loan repayments and financing arrangements

Sales and purchase ledgers, as well as CRM systems, are valuable sources for this information. Especially CRM data can extend your visibility further into the future by showing signed deals and upcoming contracts.

This is the point where cash-flow planning becomes a real management tool, not just a reporting exercise.


Keep the plan up to date

A cash-flow plan only stays useful if it is maintained continuously.

Depending on how active your business is, updating the plan daily or weekly is usually enough. The key principle is simple: update the plan whenever something meaningful changes — a new invoice is issued, a large payment is received, an investment decision is made, or a payment date changes.

In GoMonio Cashflow Planner, the goal is to make this maintenance fast, so that cash-flow planning becomes part of normal business routines rather than a separate reporting task. GoMonio has automation tools and is evolving constantly, so you do less but get more.


Always include a cash buffer

A good cash-flow plan does not only show whether you survive. It should also help you avoid unnecessary stress and emergency financing.

You should explicitly plan for a cash buffer and track whether your future balances stay safely above it. If the plan shows that your balance is likely to drop too low, you have time to react early. That works by adjusting expenses, postponing investments, accelerating invoicing or arranging financing in advance.

Cash-flow planning is most powerful when it gives you time to act.


When estimates are needed

Although cash-flow planning is mainly based on real and known payments, some businesses, especially in retail and other volume-driven industries must use estimates for part of their future income and expenses.

These estimates should be based on experience and historical patterns. You can also use target-based income planning: once your future expenses are known, you can define how much revenue is required to cover them.

It is normal that future periods contain uncertainty for these businesses. What matters most is that the near future (the next days and weeks) is built on concrete and reliable information.


Learn from your historical cash-flow

Historical cash-flow data is not only useful for bookkeeping. It is a powerful source of insight.

For example:

  • regular investment outflows often show that the company is actively developing its operations

  • unusually positive investment cash flow may indicate that assets are being sold to support liquidity

By reviewing past cash-flow patterns, you learn how your business really generates and consumes cash. This understanding strengthens both daily decision-making and long-term planning.


Cash-flow planning in practice with GoMonio

GoMonio is a modern, real-time financial management platform designed to give you clarity and control over your cash position. These are all the features of GoMonio Cashflow Planner:

1. Live bank integration for real cash visibility

Instead of manually entering past transactions, GoMonio can connect securely to your bank accounts using PSD2/Open Banking. Once connected, it automatically pulls transaction data so that your starting point is always up to date. It pulls balances and past 5 days of transactions). If you want to import more transactions to the app, it’s just one click away!

This means your cash-flow plan starts with real, verified figures, not guesses.

2. Centralized transactions and automated categorization

You can review, filter and categorize transactions (e.g., sales, purchases, salaries, loan payments). That makes it easier to understand how money moves through your business over time. You can set automation rules to automatically categorize transactions.

Categorizing transactions consistently allows:

  • faster updates to your cash-flow plan

  • better visibility of recurring payments

  • easier analysis of trends

3. Cash-flow forecasting built around real data

With your transactions recorded, GoMonio provides a forward-looking cash-flow view. It helps you see what your cash position will likely be if known future payments and expected income are included.

Instead of an abstract forecast, this becomes a dynamic, data-based plan. Plan you can update whenever new information arrives.

4. Multi-currency support

If your business deals with more than one currency (e.g., exports, international suppliers), GoMonio shows you balances and flows across accounts in different currencies. All of those translated into a clear, consistent overview.

5. Recurring templates & automation

You can save time by setting up recurring transactions. Like for example monthly rent, subscriptions, loan repayments or planned income will appear automatically in your future days without manual entry.

That keeps your cash-flow planning efficient and reduces the chance of forgetting predictable cash movements.

6. Dashboard and visual insights

GoMonio is built to show your financial information at a glance. Dashboards and charts help you spot:

  • upcoming cash shortages

  • periods with surplus liquidity

  • trend changes in real time

This kind of visual insight makes it easier to act early when the plan shows upcoming cash tightness.

7. Collaborative and flexible

You can invite team members, accountants or advisors into your GoMonio workspace with defined roles (e.g., viewer, editor). This makes cash-flow planning collaborative and aligns everyone on the same factual data. Bookkeeping agencies and other consultants can have their own agency account and view multiple client’s info and even consolidate them.

TLDR

Cash-flow planning is not about guessing what your bank balance might look like in the future. It is about combining what has already happened with what is already known and placing it on one clear timeline.

Start by using your real bank balance as the opening point. Import or record completed transactions first. Your bank statement is the most reliable source you have, and it gives your cash-flow plan a factual foundation that cannot be distorted.

Build your plan with a simple structure:

  • opening cash balance

  • operating cash flow

  • investing cash flow

  • financing cash flow

  • closing cash balance

The closing balance of one period always becomes the opening balance of the next. This keeps the plan readable and directly linked to your real bank account.

After the past is recorded, add only future payments that are already known, such as:

  • unpaid sales and purchase invoices with due dates

  • salaries and other regular operating costs

  • subscriptions, rent and insurance

  • taxes and VAT

  • loan repayments and financing arrangements

  • planned investments

Use information that already exists in your business (accounting system, CRM, contracts, orders and commitments). This is the point where the cash-flow plan becomes a real management tool instead of just a report.

Keep the plan continuously up to date. Update it whenever something meaningful changes: a new invoice is issued, a payment arrives, a delivery is confirmed, an investment is decided or a due date moves. For most businesses, a short daily or weekly review is enough.

Always include and monitor a cash buffer. Do not only look at whether your balance stays positive, but whether it stays safely above your minimum reserve. If your future balance drops too low, act early by adjusting costs, delaying investments, accelerating invoicing or arranging financing in advance.

Use estimates only where they are unavoidable, and base them on historical patterns and experience. Keep the short-term horizon (the next days and weeks) as concrete and reliable as possible.

Finally, review your historical cash-flow patterns regularly. They show how your business really generates and consumes cash and help you improve both daily decisions and longer-term planning.

In practice, good cash-flow planning is a simple routine:
record real transactions → add known future items → review the cash timeline regularly → maintain a buffer → update the plan whenever reality changes.