Open Banking
The regulated UK framework for pulling bank-statement data into a lender's underwriting flow. Faster than PDF uploads, harder to falsify, and tightly bounded by what the customer consents to.
Definition
UK Open Banking is the regulated framework that lets authorised third parties access a customer's bank-account data (Account Information Services / AIS) and initiate payments (Payment Initiation Services / PIS) — with the customer's explicit consent.
Mandated for the UK's 9 largest banks ("CMA9") in 2018 following a Competition and Markets Authority order. Voluntary for smaller banks, who have largely joined. As of 2026, ~95% of UK personal and business current accounts are accessible via Open Banking.
Two main services
AIS — Account Information Services
Read access. Pull account balances + transaction history (typically 12-24 months). The primary use for UK SME lenders — feeds revenue / expense / cashflow models.
PIS — Payment Initiation Services
Initiate a payment from the customer's account. Used by lenders for disbursement (fund the loan account directly) and by revenue-based products for daily collection.
How UK alt-lenders use it
- Underwriting input. Pull 12-24 months bank statements, parse into structured cashflow / revenue / expense categories, feed credit model. Faster than PDF upload (seconds vs hours), harder to falsify than uploaded documents.
- KYC corroboration. Proves the business actually operates the bank account named on the application. Part of MLR 2017 customer due diligence — see our KYC / AML glossary entry.
- Real-time repayment. For revenue-based products (merchant cash advance, future revenue advance), ongoing AIS lets the lender see daily revenue and collect the right percentage automatically. This is how YouLend and Liberis work mechanically.
- Pre-application qualification. Some lenders offer "instant quote" — paste an Open Banking link in 30 seconds, get a tentative offer before any formal application.
Provider stacks (2026)
| Provider | UK coverage | Strengths | Typical use |
|---|---|---|---|
| TrueLayer | Excellent (UK-founded) | Best UK business-bank coverage; native UK SME focus | Default for most UK SME lenders |
| Plaid | Very good | US-origin; strong API; widest global coverage | Multi-region lenders (UK + EU + US) |
| GoCardless Open Banking | Good | Strong on direct-debit alternatives; built for repeat payments | Revenue-based products with daily collection |
| Yapily | Good | White-label / developer-first | Lenders building deep custom UX |
| Tink | Good (Visa-acquired) | Broad EU; bundled with Visa payments | Lenders also using Visa payment rails |
Cost varies: most charge ~£0.50-£2 per successful connection + monthly base fee. At UK alt-lender scale (~500-2,000 applications/month), expect Open Banking provider cost in the £500-£3,000/month range — typically less than 10% of unit cost.
Where it breaks down
Newly-incorporated SMEs (0-12 months)
Insufficient transaction history. Account often shows founder loans + initial setup costs, not steady operating revenue. Open Banking gives no usable signal for sub-12-month SMEs — lenders supplement with Companies House + director credit + sector-typical revenue assumptions.
Multi-account fragmentation
Many SMEs split flow across personal + business accounts, plus payment platform balances (Stripe, GoCardless, PayPal). Open Banking pulls only the accounts the customer connects. Lenders must either ask for all connections or accept partial-view risk.
Consent fatigue
Open Banking consents can be revoked at any time. UK industry-wide data shows ~12-15% of consents are revoked within 90 days — meaning ongoing AIS connections silently die. Lenders must monitor connection-status and re-prompt customers.
Cash-intensive sectors
Hospitality, retail, taxi, cash-and-carry — businesses where 30-50% of revenue is cash and never hits the bank account. Open Banking shows only the banked portion. Lenders must adjust models or supplement with card-acquirer data (e.g. Worldpay, Stripe).
Open Banking vs Borrowsignal
Different funnel stages. Open Banking is an application-time data source — used after a borrower has applied. Borrowsignal is a top-of-funnel data source — used to find borrowers who haven't applied yet. Both are complementary parts of a UK alt-lender data stack:
- Borrowsignal: Companies House → newly-incorporated UK SMEs → daily delivery to your BDR team's CRM
- Open Banking: bank statements → underwriting input → credit decision
Future direction
The UK has signalled a move toward broader "Smart Data" — extending Open Banking-style data sharing to energy, telecoms, accounting (Open Accounting / Codat), and payroll. The Data (Use and Access) Act 2025 provides the legal framework. For SME lending, Open Accounting (accounting-software data — Xero, QuickBooks) is the next high-value layer; several UK lenders already integrate Codat for this.
Related
- KYC / AML
- Working capital
- Factor rate — revenue-based products that use ongoing Open Banking
- Companies House — top-of-funnel data source
Frequently asked
What is Open Banking in the UK?
Regulated framework letting authorised third parties access bank-account data (AIS) or initiate payments (PIS) with customer consent. Mandated for the CMA9 in 2018, voluntarily extended to most other banks. ~95% UK current-account coverage in 2026.
How does a UK alt-lender use Open Banking?
Three uses: underwriting input (pull 12-24m statements, parse into cashflow model); KYC corroboration (proves the customer operates the account); real-time repayment for revenue-based products (daily AIS check for collection).
Which UK Open Banking providers do alt-lenders use?
TrueLayer (default UK), Plaid (multi-region), GoCardless Open Banking (revenue-based products), Yapily (white-label), Tink (Visa-acquired). Cost ~£0.50-£2/connection + monthly base.
What are the limits for thin-credit-file SMEs?
0-12 month SMEs have insufficient history; multi-account businesses fragment data; ~12-15% consent revoke within 90 days; cash-intensive sectors show only banked portion. Lenders supplement with Companies House + sector-typical assumptions.