Fractional CFO for BNPL companies

BNPL is short-duration consumer credit dressed as a payments product, and the accounting reflects both sides. Merchant discount revenue is earned at point of sale; consumer late fees and interest are earned over time. Underneath sits a receivables book with CECL or IFRS 9 provisioning, funding through warehouse lines, ABS or forward flow, and a charge-off curve that lags origination by 90 to 180 days - long enough that fast-growing businesses can hide deteriorating credit for several quarters.

The CFO work is the bridge between payments-style merchant revenue and credit-style book reporting. Merchant recognition at point of sale, loss provisioning by vintage built from actual cohort performance, funding cost allocation against the book, the relationship between approval rates and downstream defaults, and the capital structure required to fund growth. The board, the lender and any future acquirer have to be looking at the same view - if those diverge, the business loses funding.

Flow provides financial modelling, FP&A and fractional CFO advisory to BNPL companies across consumer pay-in-X providers, longer-term instalment lenders, B2B BNPL and embedded BNPL platforms.

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

KPIs to track for "BNPL" startups

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

GMV financed

Merchant discount revenue

Approval rate

Default rate

Charge-off rate by vintage

Loss-adjusted margin

Cost of funds

Active customers

Repeat usage rate

Active merchants

Financial modelling for "BNPL" 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.

GMV and merchant discount revenue

GMV financed projected by merchant cohort, vertical and product (pay-in-4 versus longer instalment), with merchant discount rate net of acquiring and scheme costs recognised at point of sale. The payments side of the P&L kept distinct from the credit side.

Vintage loss curves

Charge-off curves by origination vintage projected to maturity, with overlays for cohorts originated as approval rates expanded. The 90-to-180-day lag means deteriorating credit hides in the P&L without this view.

Loss-adjusted contribution per loan

Merchant fee plus late fee revenue against funding cost, charge-offs, servicing cost and customer acquisition allocated to the cohort. The unit economic that decides whether incremental growth is profitable or just buying credit losses.

Approval rate and credit policy

Approval rate, score cutoff and downstream default rate modelled together, with the trade-off between volume growth and credit loss made explicit. Lets the board see when commercial pressure is loosening underwriting.

Capital structure and cost of funds

Warehouse, ABS, forward flow and equity stacked against the receivables book, with blended cost of funds applied to vintages by funding source. Surfaces how much origination capacity exists before the next capital action is required.

Repeat usage and customer LTV

Repeat purchase frequency and lifetime margin per customer modelled against acquisition cost and incremental credit loss on repeat originations. Tells the board whether the consumer base compounds or has to be reacquired every cycle.

Recent fractional CFO track record

See our fractional CFO and financial modelling experience across BNPL and beyond.

Simple pricing

No hidden costs, no complicated long-term contracts. We understand how important flexibility is for BNPL 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.

Explore our fractional CFO offering for similar verticals

We're a specialized fractional CFO to fintech companies.

Our fractional CFO experience spans across all fintech verticals.

SoftwareAI & MLConsumer 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 BNPL 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 BNPL 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).