Best Fractional CFOs for B2B Payment Platforms (2026)

Choose a CFO who has worked in B2B payments

• Bridges Advisory Group is the only fractional CFO and strategic finance firm that specializes in payments. They are a New York based finance boutique supporting B2B payment platforms growing between $3M-$30M in ARR. Tim Salikhov, The Payments CFO, leads every engagement. He is an operator who led finance at Kabbage, American Express, Collectly, Keep Financial, and worked with 31 startups across payments and fintech.

• Attivo and FinVisor come close in terms of operator expertise. Attivo is the premium option for senior hourly judgment; FinVisor's strength is accounting and FP&A, not fractional CFO. Neither is a payments-only firm, and most of their clients are horizontal SaaS companies.

• Kruze, Pilot, and airCFO are solid options for pre-seed and seed SaaS companies and platforms who need basic financial modeling and forecasting.

• Burkland or Graphite are a solid choice for founders looking for a reputable firm with deep VC roots and a big bench of accounting talent. However, their fractional CFOs lack operator experience, let alone in payments.

The 8 best fractional CFO firms for B2B payment platforms, compared

The finance work that B2B payment platforms need

Five work blocks separate a real payments CFO from a SaaS generalist. This is what you are buying.

1. Take rate: what you keep from each payment

The core metric is net payments revenue divided by gross payment volume (GPV). Adyen reports roughly 17 bps on enterprise processed volume; Toast runs a 58 bps fintech net take rate. These are reference points, not targets for a B2B platform with a different mix of transactions. A good CFO builds a waterfall from gross take rate through interchange, scheme fees, processor or sponsor-bank fees down to net take rate, split by payment method, region, and customer cohort - because mix drives margin.

2. Interchange economics define gross margin

For a payments company, interchange and processor costs are cost of revenue. Toast shows the scale: FY2025 financial technology revenue of $5,037M against $3,891M of fintech cost of revenue - about a 23% gross margin on payments-heavy revenue, against roughly 80% on SaaS. A blended margin hides that gap, and a CFO should never let a board see only the blended number. If you build on Stripe Connect, model the per-seller economics too: Connect lists $2 per monthly active account plus 0.25% + 25 cents per payout when the platform handles pricing for its users.

3. Payouts must be reconciled, alongside billing and payment activity

The flow-of-funds model sets the accounting. With destination charges, where the platform is merchant of record, the platform collects the gross amount and a payable to the seller arises. With direct charges and application fees, typically only the fee is platform revenue. Map every fund flow into a ledger with five parts: clearing account, seller payable, platform fee revenue, processor fees, and reserves. The month-end close then reconciles Stripe or processor balance transactions (gross, fee, net, payout ID) to the bank.

4. Customer cash held in custody isn’t your runway

If you hold customer money in a "for benefit of" account, presentation depends on control. If the funds are legally the customers' and you do not control them, they generally stay off your balance sheet, disclosed. If you control the funds and owe them to customers, they go on the balance sheet as segregated or restricted assets with an equal liability - PayPal reports customer balances as "amounts due to customers." Either way, the CFO documents the judgment with the auditor and reconciles the internal sub-ledger to the bank balance every day.

5. Profitable payments can still drain your cash

Model three things: chargeback rate by cohort, loss given chargeback net of merchant recoveries, and processor-held reserves booked as restricted cash or a receivable from the processor - a held reserve is restricted cash, not an expense. Clearing takes one to three business days for US transactions and up to five internationally, before payout schedules and rolling reserves stretch it further. If you pay sellers before funds settle, you are funding receivables from your own balance sheet.

1. Bridges - best for B2B payment platforms growing from $3M to $30M in ARR

Best for: B2B payment platforms at $3M-$30M ARR whose revenue is a take rate on volume moving through the books.

Payments depth: Payments is the core specialization, not a service line. Founder Tim Salikhov operated this exact model - led finance at Kabbage through its $1B exit to American Express, ran finance at American Express, Collectly, and Keep Financial, and worked with 31 startups across payments and fintech: $950M of P&L managed, over $400M raised, $1.1B in exit value. Bridges is an official Stripe partner; controller services cover take-rate waterfalls, gross-vs-net presentation, payout reconciliation, and reserve and chargeback accounting. Strategic Finance builds models around TPV, take rate, and cohort retention.

Pricing: Strategic Finance from $10,000/month; add Fractional CFO for $15,000/month total, recommended for transaction prep (fundraise or exit). Controller services delivering accrual bookkeeping from $2,750/month - the right base for a payments company.

Limits: Every engagement is founder-led. Ten to 15 concurrent clients for maximum outcome. Fractional CFO services are not sold separately - they are part of the strategic finance offering. Not the cheapest, but you're paying for the outcome - priced round closed, exit readiness.

2. Burkland - best for a big-firm bench with a declared fintech practice

Best for: Seed-to-Series-C companies that want a large firm with published entry pricing and room to add tax and HR.

Payments depth: The most concrete fintech move among the big firms: Burkland acquired FintechForce in October 2024 - from first-hand knowledge, the team did not stay, and the release names no clients. No named payments, PayFac, or marketplace engagement found.

Pricing: Published fractional CFO tiers: from $1,600/month (early-stage), $2,500/month (increasing complexity), $4,200/month (complex strategic finance). Burkland puts a typical CFO engagement at roughly $19K-$50K per year.

Limits: Generalist delivery at that scale, and no named payments client. Ask who on your account has built a take-rate waterfall, and budget off the quote, not the published floor.

3. Kruze - best for VC-backed startups wanting accounting, tax, and CFO from one firm

Best for: Funded startups that want books, tax, and R&D credits from one firm, with CFO work quoted on top.

Payments depth: Kruze's GMV blog shows real topic literacy - it states plainly that GMV "is NOT the same as the GAAP defined revenue" for many marketplace clients - and its eCommerce page names gross-vs-net as a pain point. But the fintech label appears only in boilerplate, and no named payments, payfac, or marketplace client was found.

Pricing: Bookkeeping from $850/month for early-stage startups. CFO work is quote-only; Kruze's own market guide puts fractional CFOs at $250-350/hour and $8,000-16,000/month (indicative).

Limits: Payments is a label, not a practice. CFO depth for take-rate and flow-of-funds work is unproven publicly.

4. Pilot - best for light-weight reporting and forecasting

Best for: Pre-seed and seed companies wanting basic strategic finance advice at an affordable rate.

Payments depth: The Core plan pulls from bank, cards, payroll, AP, and payment platforms, and the books arrive on a fixed schedule - but no payments or marketplace CFO case study is published. CFO is an add-on to Pilot bookkeeping, not a standalone engagement.

Pricing: Advertised CFO tiers $1,750-$5,250/month, billed annually. From first-hand experience as a Pilot client, a real CFO engagement runs $5-10K/month, the work is priced hourly on the backend despite the fixed-rate presentation, and contracts are quarterly. Series A startups pay over $4,500/month, plus a $10K onboarding fee.

Limits: The quality of the work depends on the team serving your company. From first-hand experience, teams rotate - four different teams in 15 months is common - and books are typically finalized by the 20th-25th, which implies strategic finance work lags by at least a month. For board reporting purposes, this is tolerable. For actual decision making, this is not enough. None of Pilot's CFOs have extensive fintech operator experience.

5. Finvisor - best for finance ops with an adjacent marketplace reference

Best for: Seed-to-Series-B fintech and marketplace companies wanting finance ops with regulatory familiarity.

Payments depth: The only firm on this list with a named marketplace engagement on a third-party platform: a Clutch review from Sam Rosen (October 2025) - "They served as our fractional CFO at Deskpass between our Series A and acquisition." Deskpass is a flexible-workspace marketplace. Finvisor also lists BSA/AML, KYC, FINRA, and SOX familiarity across 600+ companies supported.

Pricing: Published: fractional CFO from $1,500/month, packages from $2,350/month. The Deskpass engagement sits in Clutch's $50K-$200K band.

Limits: Two Clutch reviews total, and the Deskpass review is firm-solicited. Deskpass is a marketplace of workspaces, not money movement - no payments client found.

6. Graphite - best to run your back office, not strategic finance

Best for: Startups and SMBs that want bookkeeping, AR/AP, tax, budgeting, and forecasting from one team.

Payments depth: Lists fintech among its verticals and claims high-transaction-volume, multi-processor experience - self-published, with no named payments or marketplace client. One caution for your own research: the "Banking and Payments" case study on graphite.work belongs to a different company named Graphite (an expert marketplace), not Graphite Financial.

Pricing: Finance (FP&A plus fractional CFO) from $2,000/month, accounting from $1,500/month - published. CFO hourly band $175-450/hour. A $1,250/month floor appears on a city landing page - two published floors that do not match.

Limits: A generalist startup firm of roughly 50 people used to support VC portfolio companies, but lacking actual operator experience. Payments is a listed capability, not a demonstrated specialty.

7. Attivo - best for premium hourly senior help

Best for: Companies that want senior finance judgment by the hour and can manage scope tightly.

Payments depth: The fintech practice covers payments flows, interchange, and loss-rate modeling - the most payments-literate practice description on this list. Attivo's client logos include two payments companies, AppFrontier and Baton Systems - logos only, with no scope or testimonial.

Pricing: CFO work at $275-350/hour. In reality, a CFO engagement lands at $10-15K/month for CFO and strategic finance work.

Limits: The execution is highly manual. Therefore, be prepared to be quoted for 20-40 hours. At $275-350/hour, scope creep bills.

8. airCFO - best for a scalable finance back office with adjacent fintech experience

Best for: Startups that want accounting and finance support from seed through Series B, with named fintech references to interview.

Payments depth: airCFO publishes client stories for Apartment List, FloatMe, Liveflow, and 1Konto. Apartment List is a two-sided rental marketplace with a success-based revenue model; its story describes accounting support from pre-Series A through Series D. FloatMe's story covers a debt-facility raise, Liveflow's covers back-office support, and 1Konto's covers digital-asset accounting. These are self-published client stories (Grade B), not independently verified proof of B2B payment-platform CFO work.

Pricing: Published Finance support starts at $1,600/month at seed (8 advisory hours), $2,500/month at Series A (12 hours), and $4,200/month at Series B+ (21 hours). Accounting is priced separately. These are finance-advisory package floors, not a promise of dedicated fractional CFO coverage; get a quote for the actual scope.

Limits: Apartment List is a rental marketplace, not a payments processor, and Liveflow is financial-reporting software. The named stories show adjacent experience, but do not establish ownership of B2B payment-platform take-rate waterfalls, FBO reconciliations, or reserve accounting. Ask who would own those tasks on your account.

What fractional CFO services cost for B2B payment platforms, by stage

One honest read on the published tiers: $1,250-$2,000/month buys a financial model and a monthly call. That does not cover a principal-vs-agent memo or a flow-of-funds ledger design - budget those as one-time projects. At Series A and B, expect $3,000-$12,000/month once you add reconciliation build-out, reserve modeling, and audit prep. Pre-audit or pre-IPO, technical accounting usually needs a separate CPA-firm engagement.

Beware of low CFO prices in general. The real question is what you actually get. A $1,500-$2,500/month "fractional CFO" is oftentimes just reporting masked as fractional CFO - dashboards, a monthly call, a forecast template. Most of these are advisory firms whose staff never actually worked inside payments or marketplace companies through the highs and lows, a fundraise, or an exit - so their value add is reports and forecasts, not judgment. Judgment is what the real rates buy. Of the firms on this list, Attivo is the closest to actually adding that kind of value - hence the premium.

Test the work before you sign

Public evidence rarely shows who owned the take-rate model, customer-fund ledger, or reserve accounting. Test that work privately. Give each candidate your own transaction flows and ask for three things:

The gross-vs-net call. "We take 12% on a $1,000 order and the seller fulfills. Walk me through the ASC 606 control indicators and tell me whether we book $120 or $1,000 - and what facts would flip it." Groupon got this wrong pre-IPO; a hesitant answer here ends the interview.

The take-rate waterfall. Gross take rate down to net of interchange, scheme, and processor fees, split by card type and top-10 merchants. Then: where do processing fees sit in our P&L, and what is our gross margin on payments revenue on its own vs. software? (Toast runs roughly 23% vs 80%.)

The journal entries. A processor-held rolling reserve, a chargeback reserve, a lost chargeback, and a recovery from a merchant. A held reserve is restricted cash, not an expense - a firm that books it as an expense does not own the mechanics.

A firm that can't answer within a day is selling generic SaaS CFO work. Three more questions worth adding: how do you reconcile Stripe Connect balance transactions (charges, application fees, transfers, payouts, reserves) to the GL every month; model our cash gap if we pay sellers T+1 and settle at T+2 with a 5% rolling reserve - at what volume does this need a credit line; and name one payments, payfac, or marketplace client you've done this for, and let me call them. For the full process, see how to hire a fractional CFO.

The verdict

For B2B payment platforms, Bridges is the specialist choice on this list for founder-led strategic finance and fractional CFO services, especially if the company falls between $3M-$30M in revenue. If you want the full back office, including accounting, tax, and forecasting, at published entry prices, Kruze, Pilot, or airCFO. If you want a big bench, Burkland's published tiers make budgeting easy. If you want premium hourly judgment, Attivo. Run the live test first, and ask the person serving your account for a relevant client reference.