Sep 8, 2025 · 59m · product-market-fit
TechCrunch called this YC founder a fraud at 18—then he built a $10M ARR fintech. | Sahil Phadnis... · PMF Show
0:00 / 0:00
▶ Watch on YouTube →
gold bands on the timeline = statements, start to end. Hover to read, click to jump. CC turns on captions
In this episode of The PMF Show, Affinity co-founder Sahil Phadnis shares his journey from high school entrepreneurship and a high-profile startup failure in consumer crypto to building a successful $10M ARR B2B fintech platform serving legacy small businesses.
How this conversation actually went
Every chapter scored 0–10 on four independent dynamics. Hover any point for the reasoning behind the score. Pablo holds 14.2% of the talking time here. How this is scored →
Pablo as informed peer 4.2 Guest teaching 3.7 Guest disagreement 1.5 Pablo pushing back 1.7
speaking balance: gold is Pablo, purple is the guest (3 minute bins)
Sharpest disagreement ▶ 23:15 Confronting competitor hit pieces and VC hype illusions
Sahil forcefully rejects the idea that high VC funding indicates operational superiority, recalling how their competitor weaponized a $90M round to run a hit piece against two teenagers.
Hardest push from Pablo ▶ 23:05 Pablo directly questions Sahil on copying accusationsPablo directly interrupts to ask Sahil point-blank whether they had actually copied the competitor's product and marketing materials as claimed.
Biggest teaching moment ▶ 47:45 Educating on MBNA and the difference between co-branded and affinity cardsSahil provides a masterclass on historical fintech distribution, clarifying the precise structural difference between for-profit co-branded cards and non-profit affinity association partnerships.
Pablo holds their own ▶ 8:03 Pablo reframes entrepreneurial experience around Viktor Frankl's thesisPablo elevates Sahil's reflection on experience by citing Viktor Frankl's existential framework, arguing that founders are ultimately pursuing meaning rather than mere experience or power.
the scores for every segment, with the reasoning behind each
| Chapter | Topic | Pablo as informed peer | Guest teaching | Guest disagreement | Pablo pushing back | Why |
|---|---|---|---|---|---|---|
| High School Ambitions and the COVID-19 Existential Shift | 3 | 2 | 1 | 1 | Pablo sets up the interview by highlighting Sahil's age and rapid progression from high school to Series A. Sahil reflects on his high school ambition and the existential crisis triggered by COVID-19 lockdowns in an agreeable, open manner. | |
| Realizing the Power of Entrepreneurship through Steve Jobs | 5 | 2 | 1 | 2 | Sahil explains how reading Steve Jobs' biography framed entrepreneurship as creating independent variables in life. Pablo engages thoughtfully, introducing Viktor Frankl's philosophy on meaning to complement Sahil's concept of experience. | |
| Enrolling at UC Berkeley and Pairing with Co-Founder Aaron | 4 | 2 | 1 | 1 | Sahil recounts building websites for restaurants and meeting co-founder Aaron via Instagram after starting at UC Berkeley. Pablo adds context about Zach Abrams and Bridge while tracking their origin timeline. | |
| Fundraising Rejections and the Berkeley Dorm Yield Experiment | 5 | 4 | 2 | 2 | Sahil describes hitting over 100 VC rejections and validating demand by running an informal 12% yield fund across Berkeley dorms. Pablo validates the early founder mistake of conflating VC meetings with real investment progress. | |
| Red-Eye to NYC, Raising $6M, and Entering Y Combinator | 4 | 2 | 1 | 1 | Sahil details flying red-eye to NYC, securing a $30k angel check that turned into $2M within a week, and subsequently raising $6M and entering YC. Pablo asks clarifying questions about their YC cohort dynamics and investor composition. | |
| TechCrunch Controversy, Subpoenas, and Pivoting from Failure | 4 | 4 | 3 | 3 | Sahil frankly discusses being attacked in TechCrunch by a well-funded competitor, receiving state regulatory subpoenas, and shutting the product down with $5M left. Pablo pushes on whether they had copied elements and asks why they did not return capital. | |
| Monk-Mode Market Research and the Legacy SMB Thesis | 4 | 5 | 2 | 2 | Sahil explains his immersive research across SMBs after the pivot and breaks down the thesis of modernizing neglected 1995-era legacy businesses targeted by PE rollups. Pablo probes into their transition from hot trends to unsexy real-world problems. | |
| Uncovering SMB Financial Pain Points and Blind Spots | 4 | 5 | 1 | 2 | Sahil illustrates how SMB owners suffer from basic financial blind spots, like an HVAC owner letting drivers buy items unreceipted on Amex and another ruining personal credit with Discover cards. Pablo probes for day-to-day pain points that owners actually recognize. | |
| Launching V1 Card Platform and Handling Payment Failures | 4 | 5 | 2 | 2 | Sahil explains the bumpy rollout of their V1 card platform with massive decline rates and lays out his AI CFO vision to automate maintainer functions in SMBs. Pablo questions how this differentiates from Brex or Ramp in the early phase. | |
| Lowering CAC by Partnering with Trade Associations and Unions | 5 | 6 | 2 | 2 | Sahil details Affinity's GTM wedge: partnering with non-profit trade associations and credit unions inspired by MBNA's 1990s playbook to slash CAC by 75%. Pablo explores unit economics, marketing splits, and interchange revenue sharing. | |
| Self-Serve SMB Acquisition and Monetization Structure | 4 | 4 | 1 | 1 | Sahil outlines their zero-demo, self-serve onboarding model acquiring 2,000 businesses, driven mostly by interchange revenue while keeping platform fees low like early Ramp. Pablo probes what specific hooks drive conversions and how revenue is structured. | |
| Sand Hill Road Rodeo and Raising a $17M Series A | 4 | 3 | 1 | 1 | Sahil explains closing a fast $17M Series A with SignalFire due to capital intensity and ends with founder advice on stoicism during brutal downturns. Pablo wraps up the interview warmly and encourages listeners to share the episode. |
Statements from this episode (19)
Stablecoin neobanks work in unstable economies, not in the US
“It's a great thesis if you're in Chad, or if you're in Syria. It's a horrible thesis if you're in New York City or San Francisco.”
Phadnis raised $25K in a Berkeley dorm and returned 12% weekly
“Look, we straight up collected 25,000 dollars in 24 hours. We returned 12% within a week. Returned all the capital. Look, everyone was made whole and even more than their principal.”
Phadnis raised $6M for his crypto startup in one month
“And then by the end of the month, we ended up raising six million in total from like Y Combinator and like a bunch of other.”
VCs fund hyped trends primarily to report portfolio markups to LPs
“VCs will give money to what is a hot commodity, so then something can give them, someone will give them up round, and you can go to your LPs and say, hey, I'm up 90% on my portfolio.”
Dollar-denominated stablecoins are not securities, they are just dollars
“Still to this day, I don't think a dollar denominated stablecoin is a security. It's a dollar. In that case, every dollar is a security.”
US domestic stablecoin usage is mostly for illicit activities
“The only reason you'd want to use stable coins for domestic transactions is if you were, like, doing something shady, you know? Like, I don't know, like, buying drugs or something.”
Legacy SMBs struggle because their tech stacks haven't adapted since 1995
“Old industry
Small businesses seem to be hurting the most in today's economy.
And why do I emphasize old industry?
It's because like, I'm not talking about drop shipping businesses or blank street coffee in Tribeca or sweet greens, the franchise owner.
Lik…”
Private equity's alpha in SMB rollups is optimizing workforce efficiency
“What we realized is what PE firms were simply doing was optimizing workforce efficiency. And that was their alpha of why they think they can roll up every dermatology practice in America and flip them to 10% greater EBITDA profitability.”
SMBs evaluate credit cards for cashback, missing the embedded software value
“For some people, they see it as points in cashback. They don't see it as anything else. And I think that's largely what the SMB economy looks at cards for. And like, that's what makes this compelling is what We're trying to show them that there's software valu…”
Phadnis: Maintainer roles like CFOs will be disrupted by AI
“We think maintainers are the ones that are going to get disrupted in this like AI revolution.”
Phadnis: Most American SMBs will never hire full-time finance staff
“At the end, most SMBs in America will never hire full-time finance functions. They, they're just not big enough to afford a CFO from Wharton to go run their books every single month.”
Up to 80% of Affiniti's SMB customers previously used community banks
“70 to 80% of our SMBs Do you know what they were using before us? Community banks and credit unions.”
Affiniti acquires SMB customers for 25% of Ramp's acquisition cost
“If I'm trying to acquire 10 pharmacies in Nebraska, and RAMP is trying to acquire 10 pharmacies in Nebraska, I can almost guarantee we're gonna have 25% of the CAC costs that they would pay.”
Affiniti will never hire account executives; sales happen via single DMs
“I mean, the awesome thing with us is we'll never need to hire account execs. Because our sales cycles are literally off one email, or off one DM.”
Phadnis: Affiniti acquired 2,000 SMBs in 14 months with one growth hire
“We acquired 2000 small businesses within, like, 14 months. We have one growth guy, and we hired him seven months ago.”
Software generates only 10% to 15% of Affiniti's total revenue
“Look, I think like software is about
1510, 15% of our revenue.
Majority of revenue comes from interchange today.”
Phadnis estimates that Ramp generates $100M in software revenue
“And I think they look at a hundred million dollars of software revenue already.”