Vendor-neutral cost worksheet
POS cost calculator: compare total ownership cost
Compare two POS options over one, three or five years using your own written quotes. Model software, hardware, setup, operations, payment processing and exit costs without assuming that either option saves money.
Modeled cost comparison
| Cost category | Option A | Option B |
|---|---|---|
| Hardware | - | - |
| Setup, migration and training | - | - |
| Software and operations | - | - |
| Exit or replacement | - | - |
| POS ownership subtotal | - | - |
| Payment processing | - | - |
| Total modeled cost | - | - |
| Monthly equivalent | - | - |
| Cost per card transaction | Not available | Not available |
The calculation runs locally. Posnic does not receive option names or monetary values. If optional analytics is accepted, only aggregate calculator, CSV and print actions are counted.
The total-cost formula
A subscription price is only one line. The calculator keeps acquisition, operation, payment and exit costs separate so a missing quote remains visible.
Total = (locations × terminals × hardware) + setup + training
+ months × ((locations × software) + operations)
+ months × ((card sales × rate) + (card transactions × transaction fee) + processor fees)
+ exit or replacement cost
What the result means
POS ownership subtotal excludes payment processing so software and operating models can be compared even when the same independent processor is used. Total modeled cost adds the processing rates entered for each option. The monthly equivalent spreads one-time and exit costs across the selected term; it is not a financing quote.
What the result does not include automatically
The worksheet does not invent taxes, inflation, financing, foreign-exchange changes, chargebacks, refunds, minimum fees, tiered rates, downtime, staff productivity or revenue lift. Add known amounts to the closest input, retain unknowns in the quote checklist, and ask an accountant to review material tax or capital decisions.
POS quote checklist
Ask every shortlisted supplier for the same written scope. A zero, blank or "included" line is not evidence until the contract identifies what is covered, what is excluded and for how long.
| Area | Ask for | Retain as evidence |
|---|---|---|
| Software | Price by location, terminal, user, feature, order volume and billing period; renewal and increase rules. | Dated quote, plan limits, tax treatment, renewal terms and the exact edition or version. |
| Hardware | Computer, tablet, printer, scanner, drawer, scale, display, payment terminal, cables, spares and warranty. | Model and interface list, delivered price, warranty owner, replacement lead time and acceptance results. |
| Implementation | Configuration, data cleanup, migration, integrations, travel, project management, training and retesting. | Statement of work with owners, milestones, acceptance conditions, exclusions and change rates. |
| Operations | Hosting, connectivity, backups, updates, security work, support hours, storage, API use and branch additions. | Service terms, escalation path, recovery responsibility, usage limits and every recurring charge. |
| Payments | Percentage, per-transaction, monthly, minimum, refund, chargeback, cross-border, terminal and settlement fees. | Processor contract, pricing schedule, settlement example, cancellation terms and PCI responsibility map. |
| Exit | Minimum term, auto-renewal, early termination, equipment return, complete data export and migration help. | Cancellation procedure, export sample, file definitions, retained-data policy and written exit price. |
Download the quote record View cost-intent evidence
The record is blank: fill it with written vendor answers before using the calculator or approving a paid POS scope.
How to calculate POS ROI responsibly
Total cost can be modeled from quotes. Return on investment needs observed business evidence.
- Record a baseline. Measure checkout time, daily close effort, inventory variance, correction rate, downtime and other outcomes that matter before changing systems.
- Run a controlled pilot. Use representative items, users, taxes, payments, hardware, returns, outages, closing and restore steps. Keep the test period and sample size.
- Value only verified differences. Apply an agreed labor or loss value to the measured change. Keep estimates separate from observed results.
- Subtract the complete cost. Use the same period as the benefit measurement and include implementation, operation and exit responsibility.
- State uncertainty. Report the baseline, result, assumptions, exclusions and sensitivity range with the final decision.
ROI (%) = (verified benefit - total ownership cost) / total ownership cost × 100
Do not enter an assumed stock-loss percentage and call the output savings. Without a reconciled baseline and pilot, it remains an estimate rather than a verified return.
Method sources
These primary sources support the worksheet method. They do not evaluate or endorse Posnic.
Method and links reviewed 2 September 2026. Local law, tax, payment and accounting treatment can differ.
POS cost calculator questions
What costs should a POS comparison include?
Compare software, hosting, backups, integrations, checkout hardware, installation, data migration, training, support, payment processing, replacement, contract and exit costs over the same period.
Is this POS calculator a vendor quote?
No. It is a vendor-neutral planning worksheet. Enter rates from written quotes and contracts, keep unknown items visible, and confirm taxes, legal duties and local payment terms separately.
Does free or open-source POS software have zero total cost?
Not necessarily. A zero software license price can still require hardware, deployment, training, updates, backups, security work, integrations, support and recovery ownership.
How should a business calculate POS ROI?
Measure a baseline and a controlled pilot first. Then divide verified benefit minus total ownership cost by total ownership cost. Do not treat estimated leakage or assumed time savings as verified benefit.
Continue the POS evaluation
Use the same requirements, acceptance tests and evidence for every candidate before comparing the final cost.