A B2B Software Business Case Template Buyers Can Defend

Your buyer likes the software. Then finance asks: “What actually changes if we buy it?” This B2B software business case template helps sales and marketing teams answer that question with their buyer. Copy it into a shared document, complete the fields together and keep supporting calculations behind the one-page decision. The spreadsheet can have tabs; the budget meeting shouldn’t need a guided tour.

Copy this one-page software business case template

Keep each answer brief and link to the evidence. Let the buyer own the baseline: their invoices, workflow records and pilot observations should determine the numbers. A vendor benchmark can suggest what to investigate.

Forrester’s Total Economic Impact methodology considers costs, benefits, flexibility and risk. That’s a useful reminder to look beyond the headline benefit. This is a practical working template, not a Forrester TEI study.

Does less chasing justify a £16,000 purchase?

Imagine a technology services team considering workflow software to handle customer approvals. This example is illustrative: the business and all figures are made up to show how the sums work.

• Decision: approve a staged rollout, assessed over 12 months, with a review after 90 days. The operations director sponsors the case; approval is needed before subscription commitment.
• Baseline: 1,000 requests monthly, each requiring 12 minutes of handling, chasing and checking. That’s 200 staff hours a month.
• Change: introduce routing, reminders and a shared approval record. Use released capacity for a service backlog and track missing approval evidence.
• Alternatives: keep the current process or improve existing forms. Test whether the simpler change removes enough work before committing to software.
• Cost: £16,000 in year-one cash expenditure plus 128 hours of existing staff effort. The calculations follow below.
• Benefit: 360–900 gross hours released in year one, depending on adoption, time saved and rollout speed. No cash savings or additional revenue are claimed.
• Delivery and review: operations owns routing, training and retirement of the old process. Finance checks costs; the compliance lead tracks missing approvals. Continue expansion only if measurements support the conservative assumptions and released time helps clear the backlog; otherwise change the rollout or pause expansion.

For a real submission, attach the measurement period and workflow records behind the baseline, quote the alternatives and replace role titles with names. Those details let someone challenge the case without starting the investigation again.

Build the cost total before calculating benefits

The subscription costs £12,000 for year one; setup and integration add £4,000. Existing staff contribute 80 implementation and training hours, plus four administration hours monthly. At an assumed loaded employment cost of £30 an hour:

• Cash expenditure: £12,000 + £4,000 = £16,000.
• Internal effort: 80 + (4 × 12) = 128 hours, valued at £3,840.
• Total year-one resource cost: £16,000 + £3,840 = £19,840.

The £3,840 represents existing staff capacity used, rather than an additional payment. Assuming unchanged prices and requirements, later years need £12,000 cash plus £1,440 of administration time annually.

Show what changes between the two scenarios

Calculate monthly handling capacity released as requests × share using the workflow × minutes saved per request ÷ 60. Here, adoption means requests processed through the tool, rather than people who have logged in.

• Conservative: 1,000 × 60% × 4 ÷ 60 = 40 hours monthly. Allow three months for rollout, counting no benefits then: 40 × 9 = 360 hours in year one.
• Optimistic: 1,000 × 90% × 6 ÷ 60 = 90 hours monthly. Allow two months for rollout: 90 × 10 = 900 hours in year one.

At £30 an hour, gross capacity value is £10,800 or £27,000. After subtracting the 128 hours of implementation, training and administration, net capacity released is 232 or 772 hours. That assumes the same staff pool can absorb the effort.

Neither scenario reduces staffing, overtime or existing subscriptions, so both claim zero cash savings. The decision is whether better service capacity justifies £16,000 of additional spending and the internal effort. Multiplying hours by a salary rate cannot settle that.

What costs should I include?

Include the costs of getting the software working, keeping it useful and eventually leaving it. Check licence tiers, usage charges, configuration, integrations, migration, training, internal administration, support and data export or exit costs. Include any overlap while old and new systems run together. Record when cash is payable and when staff time is needed; compare alternatives across the same assessment period.

Can saved time count as savings?

Saved time can be a valuable capacity benefit. Call it a cash saving only where spending actually falls, such as reduced paid overtime. The Government Efficiency Framework distinguishes spending reductions from benefits that release resources without reducing expenditure. It’s public-sector guidance, but that distinction is useful in a software buying conversation too.

Name the work that will fill the released time and check whether scattered minutes become usable capacity. If those hours support paid delivery, model demand and incremental delivery costs separately. An additional 100 billable hours at £100 would generate £10,000 in revenue, not profit; that unproven upside stays outside our example’s core case.

Don’t also add the salary-rate value of those same 100 hours to the benefit total. Likewise, rework already included in handling-time reductions cannot become a second saving. Forrester’s modelling guidance explains why overlapping benefits need separating.

Keep reduced risk on its own line. Describe the failure, the control that changes and the evidence available. Our example tracks missing approvals without assigning a financial benefit: that would need defensible evidence of incident frequency, impact and the software’s effect.

What if the case only works in the optimistic scenario?

Make that visible before asking for approval. Identify the assumption doing the heavy lifting: faster rollout, better adoption or more minutes saved. Set a bounded pilot with an agreed budget, duration and decision threshold to test it. Confirm working integrations, routing rules and a rollout owner. Stronger wording cannot repair a missing assumption.

For sales and marketing teams, completing the case reveals which benefits you can substantiate and explain clearly. It gives your buyer a precise account of who benefits, how and under what conditions. That is the raw material for a value proposition they can repeat confidently.