FORECASTING & FINANCE
Budget forecasting: defend a number with its reasons
Budget forecasting with TIMi estimates how a spending or revenue line will evolve, to secure a planning exercise in the private or public sector, and shows the factors behind the forecast.
Line by line
Forecast one budget line or many, with the same method.
Structural factors
Demographics, activity and known decisions are inputs.
Explained forecast
Each forecast comes with the factors that justify it.
HOW IT WORKS
How budget forecasting works.
Three steps, in one engine, on a standard server with no cluster.
1. Prepare the data
Anatella gathers the history of the budget line, the structural factors that influence it (demographics, economic activity, headcount) and the decisions already known (regulatory changes, new schemes), then structures them into variables.
2. Build the model
Modeler projects the evolution of the line from historical trends and the factors identified as influential.
3. Forecast and explain
Each forecast comes with its factors, such as a structural trend or the effect of an identified demographic or regulatory factor, and not only a projected number.
Anatella
ModelerHOW IT DIFFERS
Budget forecasting is not cash flow forecasting.
Both are about money, over different horizons.
Structural factors, not due dates
Cash flow forecasting covers short-term flows (receipts, payments). Budget forecasting covers the evolution of a line within a broader, often annual or multi-year, planning exercise, with structural factors rather than immediate due dates.
Public or private
The modeling principle is the same. The variables differ: demographic factors for a public social budget, activity factors for a company budget.
Add known changes
A change that is already known and dated, such as a reform, can be added as an input to adjust the projection from its effective date.
EXPLAINABILITY
A budget says how much. The factors say why.
A budget forecast alone gives an expected amount, not what justifies it. A white-box model shows the factors, so planning teams can justify a budget in front of a management team, a board or a deliberative assembly, with verifiable arguments instead of an imposed figure.
For finance and planning teams
A gap between the voted budget and actual outturn can be anticipated and explained upfront, instead of being observed afterwards.
For stakeholders
A public or institutional budget based on documented factors is simpler to justify and to have approved.
For model owners
Modeler’s built-in Drift Report shows when a model loses accuracy, so you update it when needed instead of on a fixed calendar. Review the model at each planning exercise.
DATA
What data a budget forecast uses.
Anatella connects to more than 80 sources, so this data can be gathered without prior custom development.
Budget line history
Over several fiscal years.
Structural factors
Demographics, economic activity, headcount.
Known decisions
Regulatory or organizational decisions, already known or to come.
Sector or territorial context
Data specific to the sector or the territory.
PROOF
A public budget reference.
Our published reference is a public budget. We do not yet have a customer story on a corporate budget.
97.2% reliability on the 2025 RSA budget
Backtest on 2025 with 2017 to 2024 data: 2.78% margin of error, built in 8 weeks by 3 people on one desktop computer, with no additional infrastructure.
FAQ
Common questions.
Does it apply to a public budget as well as a company budget?
Yes, the modeling principle is the same. The variables differ depending on the context: demographic factors for a public social budget, activity factors for a company budget.
Can it include an upcoming reform or regulatory change?
A change that is already known and dated can be added as an input to adjust the projection from its effective date.
What horizon is the most reliable?
A one-year horizon is usually the most reliable. A multi-year projection remains possible, with growing uncertainty as the horizon moves away.
Do we need a long history?
A history of several fiscal years improves precision, especially to capture structural trends rather than one-off variations.
RELATED USE CASES
Keep exploring.
Public Budget Forecasting
Forecast a voted public budget line with arguments you can defend to elected officials.
Cash Flow Forecasting
Anticipate cash in and out, including how customers really pay.
Sales Forecasting
Forecast revenue from the sales pipeline and past conversion, with the factors explained.
SEE FOR YOURSELF
Test it on your own data.
Run TIMi on your own data with a free trial, or talk to us about your case.
