BharatPe's business model has evolved through three distinct phases: a pure payment infrastructure phase, a payment-plus-lending intermediary phase, and its current integrated financial services platform phase. Understanding all three is necessary to understand both where BharatPe is today and where the model is heading. The payment infrastructure phase, which defined the company from 2018 to 2019, was deliberately loss-making and deliberately free. BharatPe offered merchants a single QR code that accepted all UPI payments at no charge — the merchant paid nothing for the infrastructure, the transaction processing, or the settlement. Revenue from the payment layer was essentially zero: UPI transactions have no interchange fee by regulatory mandate in India, meaning there is no meaningful payment processing revenue to be earned from the transaction itself. BharatPe's payment product was a customer acquisition tool, not a revenue generator, and the company funded this acquisition cost through venture capital raised on the thesis that the data and relationships accumulated would monetize through financial services. This freemium payment model worked exceptionally well for merchant acquisition but created a unit economics challenge that BharatPe had to solve quickly. The solution was the lending business, which began to generate meaningful revenue from 2020 onwards. BharatPe's lending model operates on two tracks: a distribution-only track where BharatPe originates loans for partner NBFCs and banks and earns a processing fee (typically 1-2% of loan value) without retaining credit risk, and a co-lending track where BharatPe and a banking partner jointly underwrite and fund a loan portfolio with shared risk and reward. The merchant loan product — typically a working capital facility of 50,000 to 2,000,000 rupees with a tenure of 6 to 18 months — is designed around the merchant's cash flow cycle. Repayment is structured to align with merchant payment receipts: rather than fixed monthly EMIs, BharatPe's loan products in many cases allow for flexible repayment tied to the merchant's transaction volume, reducing the repayment stress that comes with seasonal business fluctuations. This cash-flow-aligned lending structure, made possible by BharatPe's real-time visibility into merchant transactions, is a genuine product innovation relative to conventional NBFC loan products. The credit underwriting model is BharatPe's most proprietary asset. The algorithm incorporates transaction frequency, average ticket size, transaction consistency over time, repayment history on previous BharatPe loans, and external bureau data to generate a credit score that is specific to the merchant context — not a personal credit score but a business viability assessment that has been trained on BharatPe's own loan origination and repayment data. As the loan book has grown and seasoned, this model has become increasingly accurate, reducing default rates on subsequent loan vintages relative to early cohorts. The buy-now-pay-later product — branded as PostPe — extended BharatPe's credit offering from merchants to consumers, allowing shoppers at BharatPe merchant locations to make purchases on short-term credit. PostPe represents BharatPe's first significant consumer-facing product and its entry into the credit card and consumer finance adjacency. The product is distributed through BharatPe's merchant network, meaning consumer acquisition cost is subsidized by the existing merchant relationship — a significant structural advantage over standalone BNPL companies that must acquire both merchant acceptance and consumer users simultaneously. Unity Small Finance Bank represents the third layer of the business model: regulated banking. As a co-owner of Unity SFB, BharatPe can offer savings accounts, fixed deposits, and banking services to its merchant base through the bank's license. This creates a complete financial services stack — payment acceptance, working capital lending, BNPL for end consumers, and deposit banking — that no single competitor currently replicates for the offline merchant segment. The revenue model in the current phase is therefore multi-layered: lending fees and interest income from the loan portfolio (the largest revenue contributor), interchange and distribution fees from card-based payment products, processing fees from BNPL transactions, and potentially deposit-related income through Unity SFB as the banking relationship matures. The payment QR code remains free and remains the primary customer acquisition mechanism — but the economics of the overall model are driven by the financial services revenue generated on top of the payment foundation.