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Best AI Cash Flow Forecasting Tools for Small Businesses in 2026: Clockwork vs Float vs Fathom vs Dryrun vs QuickBooks

Compare Clockwork, Float, Fathom, Dryrun, and QuickBooks for AI cash flow forecasting, scenarios, integrations, and small-business planning.

Best AI Cash Flow Forecasting Tools for Small Businesses in 2026

Choosing cash flow forecasting software is less about finding the tool with the most impressive AI label and more about matching the forecast to the decision you need to make.

Do you need a rolling 13-week view to avoid a cash crunch? A 52-week forecast for operating plans? A five-year model for lenders or investors? Or a simple 12-month forecast already included in your accounting software?

The right choice also depends on where your financial data lives, how clean and current your books are, whether customer payment timing is predictable, and how much control you want over assumptions. Clockwork, Float, Fathom, Dryrun, and QuickBooks can all support forecasting, but they approach the problem differently.

This comparison focuses on the practical buying criteria that matter most to small businesses, operators, and fractional CFOs: accounting integrations, forecast horizon, AR and AP timing, scenario planning, automation, implementation effort, and pricing transparency.

Quick comparison

| Tool | Best fit | Forecast approach | Key horizon or capability | Notable integrations | Main consideration | |---|---|---|---|---|---| | Clockwork | Businesses needing integrated cash forecasting and financial modeling | Automated cash-flow forecast plus financial model | 52-week forecast and five-year model | QuickBooks Online, QuickBooks Desktop, Xero, Excel/CSV, Google Sheets | More capable than a basic cash dashboard, but may be expensive for very small businesses | | Float | Operators focused on short-term cash visibility and payment timing | Rolling cash forecast using balances, invoices, bills, and budgets | Rolling 13-week weekly view; monthly views can extend up to 36 months | QuickBooks Online and Xero | Strong timing features, but it does not collect payments or automate reminders | | Fathom | Finance teams that need three-way models and structured what-if analysis | P&L, balance sheet, and cash-flow forecasting | Rolling 12-month reporting and longer-term workflows | Accounting integrations vary by account and configuration | Particularly useful for microforecasts and management reporting | | Dryrun | CFOs and finance teams requiring manual control and scenario comparison | Cash-flow forecasting from accounting data with adjustable assumptions | 13-week baseline and longer scenario planning | QuickBooks Online, Xero, Sage Intacct, Dynamics 365 Business Central | Request a complete quote because setup and implementation fees may apply | | QuickBooks Online with Intuit Intelligence | Very small businesses already using QuickBooks Online | Historical-data forecast with conversational scenarios | 12-month forecast | Native QuickBooks Online data | Requires sufficient history and clean, categorized books for more reliable results |

How to evaluate AI cash flow forecasting software

1. Start with the accounting system

Integration is the first filter. A forecasting tool cannot produce a useful live forecast if it cannot reliably access the transactions, invoices, bills, bank balances, and historical data that drive cash movement.

Clockwork documents support for QuickBooks Online, QuickBooks Desktop, Xero, Excel or CSV files, and Google Sheets, along with automatic account mapping. (Clockwork integrations) Float connects with QuickBooks Online and Xero and uses live bank balances, invoices, bills, and budget data for its rolling forecast. (Float integrations)

Dryrun documents integrations with QuickBooks Online, Xero, Sage Intacct, and Microsoft Dynamics 365 Business Central, including transaction-level accounts-receivable and accounts-payable data from supported systems. (Dryrun data integration)

Before buying, confirm whether the integration is available for your accounting edition and region, whether it is read-only, how frequently it syncs, and whether unreconciled or uncategorized transactions affect the forecast.

2. Match the horizon to the decision

Forecast horizons are not interchangeable. A 13-week cash forecast is designed for near-term liquidity management: payroll, tax payments, supplier bills, and collection gaps. A 52-week weekly forecast is more useful for annual operating planning. Monthly forecasts and multi-year models support hiring, financing, expansion, and investment decisions.

Clockwork combines a 52-week cash-flow forecast with a five-year financial model. (Clockwork) Float offers a rolling 13-week weekly view and a longer-term monthly view, with its integration documentation describing forecasts up to 36 months ahead. (Float integrations) Dryrun documents a 13-week cash-flow baseline, while Fathom provides rolling 12-month forecast reporting and supports longer-term forecasting in certain workflows. (Dryrun scenario modeling; Fathom forecast reporting)

QuickBooks Online with Intuit Intelligence is the simplest option in this group for businesses that only need a 12-month forecast from existing QuickBooks data. (Intuit Intelligence forecasting)

3. Check how AR and AP timing is modeled

A forecast based only on invoice totals can be misleading. The important question is often when money will actually arrive or leave the business.

Float’s Smart Expected Payment Dates feature adjusts invoice timing using individual customer payment behavior, while Smart Cost Prediction identifies recurring cost patterns. (Float AI features) Float also provides accounts-receivable and accounts-payable visibility, but it does not process payments, automate collections, or send payment reminders.

Dryrun’s documented integrations provide transaction-level AR and AP visibility from supported accounting systems. (Dryrun data integration) This can be useful when the finance team wants to adjust assumptions manually around overdue invoices, supplier terms, or unusual payments.

For any product, ask whether the forecast uses invoice and bill due dates, observed customer behavior, bank transactions, or user-entered assumptions. Also ask how it handles partial payments, overdue balances, recurring expenses, tax liabilities, and payroll.

Tool-by-tool comparison

Clockwork: best for a combined 52-week forecast and financial model

Clockwork is the strongest fit for a small or midsize business that wants more than a short-term cash report. Its documented feature set includes a 52-week cash-flow forecast, a five-year financial model, dashboards, scenario plans, and an AI analyst called Mira. It can use data from QuickBooks, Xero, Excel, or Google Sheets. (Clockwork)

That combination makes Clockwork worth considering when the same team needs weekly cash visibility and longer-term planning without maintaining separate spreadsheet models. Its support for QuickBooks Desktop is also relevant for businesses that have not moved to a cloud accounting platform.

Clockwork’s pricing page lists Predict at up to $499 per month, Advance at up to $799 per month, and Ultimate at up to $1,199 per month, subject to annual-billing discounts and plan conditions. (Clockwork pricing) The vendor’s public pages have also shown different starting-price language, so confirm the current plan, limits, entity support, and billing terms before purchase.

Choose Clockwork if: you need a 52-week operating forecast, a multi-year model, scenario planning, and broad data-import options.

Float: best for rolling cash management and payment timing

Float is oriented toward ongoing cash management. It connects to QuickBooks Online and Xero and builds a rolling forecast from live bank balances, invoices, bills, and budget data. Its documented views include a rolling 13-week weekly forecast and longer-term monthly forecasts that can extend up to 36 months. (Float integrations)

Its AI-related features address two common forecasting weaknesses: recurring costs that are easy to overlook and customer payments that arrive later than invoice due dates. Smart Cost Prediction identifies recurring cost patterns, while Smart Expected Payment Dates adjusts invoice timing using customer-specific payment behavior. (Float AI features)

Float may be a practical choice for an owner or operator who primarily wants to answer, “Will we have enough cash over the next few weeks?” It is not a collections or payment-processing system, so businesses needing automated reminders or payment execution will need other tools.

Choose Float if: short-term liquidity, invoice timing, and recurring costs matter more than a full five-year financial model.

Fathom: best for three-way forecasting and event-based planning

Fathom takes a financial-statement approach. Its cash-flow forecasting supports three-way forecasting across the profit and loss statement, balance sheet, and cash flow, with scenarios created by changing timing rules, value rules, and other assumptions. (Fathom cash-flow forecasting)

Its microforecast feature is particularly useful for planning discrete business events. A microforecast can model a hire, loan, asset purchase, marketing campaign, or new product line without rebuilding the entire forecast. Fathom distinguishes these microforecasts from scenarios: microforecasts sit on top of a baseline, while scenarios create alternative versions by changing baseline assumptions. (Fathom microforecasts; Fathom what-if forecasts)

Fathom also documents actual and forecast P&L, balance-sheet, and cash-flow reporting, along with rolling 12-month reports and scenario comparison charts. (Fathom forecast reporting)

Choose Fathom if: you need management reporting, three-way modeling, and structured what-if analysis around business events.

Dryrun: best for hands-on scenario control

Dryrun is designed for cash-flow forecasting and scenario modeling using accounting data. With QuickBooks Online, for example, its documented baseline options include last year, a 12-month average, or recent performance. (Dryrun QuickBooks forecasting)

Its scenario tools support side-by-side comparisons, manual control overrides, multi-entity modeling, and a 13-week cash-flow baseline. (Dryrun scenario modeling) Those controls can be valuable for a fractional CFO or finance lead who does not want an automated forecast to obscure the assumptions behind it.

Dryrun’s public terms state that subscription fees are specified in an order form and that setup or implementation fees may apply. Request a complete written quote covering entities, users, integrations, onboarding, and support.

Choose Dryrun if: you want detailed AR/AP visibility, manual overrides, and multiple scenarios that can be compared side by side.

QuickBooks Online with Intuit Intelligence: best for the simplest starting point

For a business already using QuickBooks Online, the native option deserves consideration before adding another subscription. Intuit says Intuit Intelligence can create a 12-month financial forecast from historical QuickBooks data and support conversational scenario analysis, such as testing the effect of hiring an employee. (Intuit Intelligence forecasting)

Intuit also says the feature requires at least two years of transaction history for the most accurate forecast, plus up-to-date books with categorized transactions and connected bank feeds. The outputs should be treated as estimates rather than guaranteed predictions.

This is likely the lowest-friction route for a very small business that wants directional planning without a dedicated FP&A platform. It may be less suitable for companies needing detailed payment-behavior modeling, multi-entity consolidation, or extensive scenario governance.

Choose QuickBooks Online if: you already have clean, established QuickBooks data and need a straightforward 12-month forecast.

Which tool should you choose?

Choose Clockwork for the broadest combination of weekly cash forecasting and multi-year financial modeling.
Choose Float for rolling 13-week cash management and data-informed customer payment timing.
Choose Fathom for three-way forecasts, management reporting, and event-based microforecasts.
Choose Dryrun for manual control, AR/AP detail, and side-by-side scenario modeling.
Choose QuickBooks Online with Intuit Intelligence for the simplest native forecast when your books already contain enough history.

Before committing, test each finalist with representative data. Compare the forecast against actual cash movements, inspect how overdue invoices and irregular expenses are handled, and verify the sync behavior after accounting changes. AI can reduce manual work, but forecast quality still depends on clean books, sufficient history, realistic assumptions, and timely reconciliation.

Sources

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