Use the same period

Record baseline cost, verified cash savings, extra care investment, recurring technology/operations cost and one-off transition cost. Keep restricted funding streams separate.

Calculations

Ongoing cost = baseline cost − verified cash savings + extra care investment + recurring cost.

First-period cost = ongoing cost + transition cost.

Headroom = authorised envelope − first-period cost.

Incremental net financial benefit = verified cash savings − extra care investment − recurring cost − transition cost.

ROI = incremental net benefit / incremental investment; if investment is zero, ROI is undefined.

Capacity

Net minutes released = baseline reporting/rework time − new capture, checking, correction and reporting time. Value of time is a capacity estimate, not cash savings. Only enter cash savings when finance can identify an actual expenditure change.

Include

Integration, migration, licensing, monitoring, training, backfill, accessibility, support, governance and evaluation. Record donated time and historic development separately.

Downside

Repeat with lower cash savings and higher implementation cost. Record who receives each benefit and whether it can fund the provider’s recurring costs. An avoided hospital cost may accrue elsewhere.

Interpretation

A positive operating surplus is different from positive incremental ROI. No calculator output authorises a funding transfer or demonstrates that an envelope is adequate.