Fractional CFO for POS & retail management software companies

POS and retail management runs a hybrid P&L - software subscription, hardware pass-through, payments residuals and increasingly merchant lending. Software is high-margin recurring, hardware low-margin one-time, payments volume-driven net of interchange and processor splits. Blending them misleads either way.

Payments unit economics are the load-bearing piece. Take rate is modelled net of processor, sponsor bank and interchange costs, and merchant cohorts tracked through software attach to payments penetration - that conversion determines whether the business is software with payments or payments with software.

Flow provides financial modelling, FP&A and fractional CFO advisory to POS and retail management software companies across restaurant and hospitality POS, retail and specialty store systems, integrated payments, omnichannel and inventory management, and vertical-specific commerce. We work as the outsourced startup CFO through growth, fundraising and sale processes.

Marcura
Hector
Testim
Panorays
Percepto
Brew
BetterQA
Voereir
TBô
Onlogist
Bonart
Cannadorf
Cannabis Innovation Center
Seagull Maritime
Moburst
Lemonade
Selina
BiomX
Dataprana
Radtonics
Marcura
Hector
Testim
Panorays
Percepto
Brew
BetterQA
Voereir
TBô
Onlogist
Bonart
Cannadorf
Cannabis Innovation Center
Seagull Maritime
Moburst
Lemonade
Selina
BiomX
Dataprana
Radtonics
Marcura
Hector
Testim
Panorays
Percepto
Brew
BetterQA
Voereir
TBô
Onlogist
Bonart
Cannadorf
Cannabis Innovation Center
Seagull Maritime
Moburst
Lemonade
Selina
BiomX
Dataprana
Radtonics

KPIs to track for "POS & retail management software" startups

We're very 'KPI-driven' fractional CFOs, and we make sure to monitor the right metrics for your startup.

Subscription ARR

Payments revenue

Payments attach rate

GPV

Merchant count

Net merchant retention

ARPU per merchant

CAC payback

Software gross margin

Payments gross margin

Financial modelling for "POS & retail management software" startups

As fractional CFOs, we build KPI-driven financial models that are insightful and easy to maintain.

Financial modelling is both art and science - models must be robust, but also understandable, and useful for both internal planning and VC fundraising purposes. Hire a fractional CFO who knows how to handle both sides of the equation.

Software ARR vs payments revenue

Subscription ARR, hardware pass-through, payments residuals and merchant lending separated so each carries its own margin profile in reporting. Blending them produces metrics that mean nothing in either direction.

Payments take-rate stack

Gross take rate broken down net of processor, sponsor bank and interchange costs to land on the share the platform actually keeps. This is the difference between gross and contribution revenue, and the model has to show both.

Merchant cohort to payments attach

Merchant cohorts tracked through software signup to payments penetration over time, with attach curves by segment and acquisition channel. The attach trajectory determines whether the business is software-with-payments or payments-with-software.

Merchant retention & GPV durability

Net merchant retention measured alongside GPV-per-merchant trends, because merchant survival, hours-of-operation and category mix all move the recurring base. A flat merchant count can mask material GPV erosion underneath.

CAC payback by merchant segment

Fully-loaded CAC and payback measured by merchant type, vertical and channel, with hardware subsidy treated explicitly inside CAC rather than below the line. The blended payback masks profitable and unprofitable segments sitting alongside each other.

Cap table & SAFE stack

Pre/post-money cap table with SAFE conversions, option pool top-ups and waterfall scenarios calibrated for payments-strategic and processor investment terms. Sponsor-bank and processor stakes can carry commercial clauses that affect future rounds.

Recent fractional CFO track record

See our fractional CFO and financial modelling experience across POS & retail management software and beyond.

Simple pricing

No hidden costs, no complicated long-term contracts. We understand how important flexibility is for POS & retail management software startups.

Core£4,000

Per month

  • Accounting / FP&A tech stack implementation
  • Monthly financial statements and reporting pack
  • Quarterly board pack with detailed financial analysis (with variance analysis vs. budget, relevant KPI observations etc.)
  • Investor-friendly output
Grow£8,000

Per month

  • Everything in Core, plus
  • Operating model (via an online platform like Runway or Excel-based)
  • Ongoing model maintenance, refining projections, burn/runway management
  • Customer cohorts modelling, churn and retention analysis
  • LTV / CAC, unit economics analysis
  • Cap table management
Pro£12,000

Per month

  • Everything in Grow, plus
  • M&A / fundraising support; review of business plan
  • Pitch deck preparation
  • Investor approach strategy / list building
  • Due diligence support and deal negotiation
  • Valuation as required and free access to Multiples Pro

Packages shown are illustrative, final pricing is tailored to client requirements.

AI & MLFintechConsumer internetDigital mediaE-commerce & marketplacesConsumer productsMobilityDigital healthIndustrial technologyDigital infrastructureIT services

More services

We help you scale by providing fractional CFO advice, through fundraising and a successful M&A exit.

VC fundraising for POS & retail management software companies

We help you prepare materials, reach out to investors in our extensive network, negotiate fair term sheets and structure the VC round.

Learn more

M&A for POS & retail management software companies

We advise winning tech companies on M&A exits, and over the years successfully executed numerous transactions with both financial and strategic buyers.

Learn more

Talk to us

Schedule a call to get a health check on your business and see how we could help.

Fractional CFO

Stages

Countries

Cities

Sectors

© 2026 Flow Partners (London) Ltd. All rights reserved. Registered as a limited liability company in England and Wales (registered number 12969521).