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Budget Impact Scenario Explorer

Change the population, cost and uptake assumptions to compare annual and cumulative expenditure. Values are synthetic and remain in your browser.

Population and costs

Eligible patientsTreated proportion (%)Existing treatment cost per patient (£)New treatment cost per patient (£)

New-treatment uptake

Year 1 (%)Year 2 (%)Year 3 (%)Year 4 (%)Year 5 (%)

Reference and adoption expenditure by year
Year	New-treatment patients	Reference expenditure	Adoption expenditure	Annual impact	Cumulative impact

Interpret carefully: A positive result means higher expenditure than the reference scenario. A negative result means projected savings. Neither result proves clinical value or cost-effectiveness.

Method and assumptions

Treated patients equal eligible patients multiplied by the treated proportion. New-treatment patients equal treated patients multiplied by annual uptake. Reference expenditure assumes all treated patients receive the existing treatment. Adoption expenditure reallocates the stated share to the new treatment.

Budget impact = adoption expenditure − reference expenditure. The simplified model omits population growth, discontinuation, partial-year treatment, capacity and confidential discounts.