Co-Lending Platform Development: RBI 2025 Rules, Modules and Cost

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Co-lending platform development for NBFCs and banks

Custom Software Development

user By Gomilestone

Oct 25, 2026

Quick answer

A co-lending platform typically costs ₹5–10 lakh ($5,300–10,500, 2–4 months) for one or two partners with loan split and repayment allocation, ₹10–20 lakh ($10,500–21,000, 4–7 months) for multiple partners with escrow reconciliation, NPA sync and DLG tracking, and ₹20–40 lakh ($21,000–42,000+, 7–12 months) for a full stack with LOS/LMS integration and real-time partner APIs.

Introduction

Co-lending lets two regulated lenders fund the same loans together. Typically an NBFC or fintech lender originates and services the loan, while a bank or larger NBFC funds most of it. The originator reaches more borrowers without stretching its own balance sheet, and the funding partner gets access to customers it could not reach alone.

Running co-lending at scale is mostly a technology problem. Every loan has to be split between partners, every repayment allocated correctly, asset classification kept in sync and reports shared on time. Spreadsheets and email break down quickly. This guide explains what a co-lending platform needs to do, how the 2025 RBI rules affect the software, and how much it costs to build in 2026.

What Changed With the RBI Co-Lending Directions, 2025

The RBI issued the Co-Lending Arrangements Directions, 2025 in August 2025, effective from 1 January 2026. Lenders could adopt them earlier. Points that matter most for your software:

Wider scope: the framework applies to co-lending between regulated entities for both priority sector and other loans, not only bank and NBFC priority sector lending.
Minimum 10% retention: each partner must keep at least 10% of every individual loan on its own books.
Borrower-level asset classification: if one lender classifies a borrower as SMA or NPA, the other must be informed in real time, at the latest by the next working day.
Default loss guarantee: the originating lender may provide a default loss guarantee of up to 5% of outstanding loans, read with the RBI's DLG framework.
Customer transparency: a single customer interface, a complete Key Facts Statement and a list of active co-lending partners on the lender's website.
Credit bureau reporting for each lender's share.

This is a summary for planning software, not legal advice. Always confirm requirements with your compliance team and the latest RBI text.

Key Modules of a Co-Lending Platform

1. Partner and program setup

Configure each partner, its products, funding ratio (for example 80:20 or 90:10), interest rates, fees, eligibility rules and approval limits.

2. Loan origination and partner approval

Applications, KYC and credit checks flow through your loan origination system. The platform runs each partner's credit rules and records approval or rejection from both lenders.

3. Disbursement and loan split

Each sanctioned loan is split by ratio, with separate ledgers and schedules per lender, and disbursement amounts tracked by source of funds.

4. Repayment allocation and escrow

Repayments through NACH, UPI AutoPay or other channels are collected and allocated automatically to each partner's principal, interest and charges, with daily settlement files and escrow reconciliation.

5. Asset classification sync

Days-past-due tracking at borrower level, with SMA and NPA status shared with the partner automatically so both books stay aligned within the required timeline.

6. DLG tracking

Track default loss guarantee limits, invocations and balances against the agreed cap.

7. Partner portal and APIs

A secure portal and APIs where the funding partner sees its portfolio, approvals, collections, NPAs and reports without waiting for emails.

8. Reporting and compliance

Portfolio, collections, settlement and regulatory reports per partner, credit bureau files for each lender, KFS generation and full audit trails.

Co-Lending Platform Development Cost in 2026

The ranges below are typical for custom development by an Indian team. US dollar figures are approximate.

Platform type	What it includes	Cost in India	Approx. in USD	Timeline
Basic	One or two partners, loan split by ratio, separate schedules, repayment allocation, settlement and portfolio reports	₹5 – 10 lakh	$5,300 – $10,500	2 – 4 months
Mid-level	Multiple partners and products, partner approval workflow, escrow reconciliation, borrower-level SMA and NPA sync, DLG tracking, partner portal, bureau files	₹10 – 20 lakh	$10,500 – $21,000	4 – 7 months
Advanced	Full co-lending stack with LOS and LMS integration, real-time partner APIs, rule engine, automated settlement, regulatory reports, analytics and high-volume architecture	₹20 – 40 lakh	$21,000 – $42,000+	7 – 12 months

If you already have a loan management system, co-lending can often be added as a module, which costs less than building a separate platform. See our guide to loan management software cost.

Planning a co-lending platform?

Tell us your partners, loan products and current systems, and our lending software team will send a phased plan and estimate.

Get a free estimate NBFC and lending software →

What Affects the Cost?

Number of partners and products: each partner brings its own ratios, rules, reports and file formats.
Integration with existing systems: your LOS, LMS, accounting system and the partner bank's systems.
Payment rails: NACH, UPI AutoPay, payment gateways and escrow bank integrations.
Real-time versus batch: real-time APIs and asset classification sync cost more than daily file exchange.
Loan volumes: high daily volumes need stronger architecture and automated reconciliation.
Security and audit: role-based access, encryption, maker-checker approvals and complete audit trails.

Build, Buy or Extend?

Option	Best for	Watch out for
Ready-made co-lending software	Lenders with standard products and one or two partners	Per-loan fees, limited control over partner-specific rules
Extend your existing LMS	Lenders whose LMS is modern and well documented	Older systems may not handle split ledgers cleanly
Custom co-lending platform	Growing NBFCs and fintechs with several partners or unique products	Needs a clear scope and phased delivery

Co-Lending and Loan Participation Outside India

Lenders in other markets use similar models under names such as loan participation, forward flow or marketplace lending partnerships. The software needs are much the same: loan splits, separate ledgers, payment allocation, partner reporting and shared risk data. What changes is the local regulation, payment systems and reporting format, which can be planned in from the start.

How GoMilestone Can Help

GoMilestone builds lending software for NBFCs and fintech lenders, including loan origination, loan management, DSA apps and customer portals, with 500+ projects delivered over 10+ years for clients in 10+ countries. See our loan management portal case study and loan origination system case study, explore our NBFC software development services, or talk to our team.

Frequently Asked Questions

How much does a co-lending platform cost to build in India?

A basic co-lending platform typically costs ₹5 to 10 lakh, a mid-level platform with multiple partners, escrow reconciliation and NPA sync ₹10 to 20 lakh, and an advanced platform with real-time partner APIs ₹20 to 40 lakh or more.

What is the minimum retention under the RBI co-lending rules?

Under the Co-Lending Arrangements Directions, 2025, effective from 1 January 2026, each regulated entity must retain at least 10% of each individual loan on its books. Confirm the latest requirements with your compliance team.

Can co-lending be added to our existing loan management system?

Often yes. If your LMS supports separate ledgers and a modern API, co-lending can be added as a module. Older systems may need a separate co-lending layer that syncs with the LMS.

How long does it take to build a co-lending platform?

A basic platform takes about 2 to 4 months. A full platform with partner APIs, automated settlement and regulatory reports usually takes 4 to 12 months, delivered in phases.

Do you build lending software for lenders outside India?

Yes. GoMilestone works with clients in India and in 10+ other countries, and adapts partner models, payment systems and reporting to each market.

The Bottom Line

Co-lending grows your loan book faster, but only if both partners trust the numbers. A good platform keeps loan splits, repayments, asset classification and reports accurate and shared in time. Start with your main partner and product, automate allocation and reporting early, and add partners in phases. If you would like a plan and estimate, contact GoMilestone.

About the author

Kaushal Garg· Founder & Director, GoMilestone

Kaushal founded GoMilestone and has 10+ years of experience building custom software, CRMs, ERPs, mobile apps and lending platforms for NBFCs, fintechs and enterprises. He holds a B.E. in Computer Science and has led 500+ projects for clients in India and 10+ countries.