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Postcoder validates UK bank account details and auto-fills payment and Direct Debit forms. Reduce customer frustration, payment errors and bank charges by adding bank validation to your website and app.
Illustration showing Postcoder validating a UK bank account, including the bank name, branch, sort code, account number and supported payment methods.
Postcoder bank validation works by querying the extended industry sort code directory (EISCD) to gather the most up-to-date and detailed information from the UK's financial institutions.
Animated demo showing a sort code and account number being entered, validated and ready for submission.
"1 in 40 sort codes and account numbers are entered incorrectly."
Source: Unified Software
Postcoder enables you to instantly verify sort code and account number combinations, and identify whether an account supports Direct Debits, CHAPS and Faster Payments (FPS).
People fill in their bank account details with additional spaces and hyphens in different places. Postcoder automatically transposes these details into the precise format expected required by BACS.
Postcoder provides the Bank Identifier Code (BIC), the Branch Identification Code (Swift Code), the bank and branch names, and the address and telephone numbers to use for BACS enquiries.
Strengthen your KYC and KYB checks and protect your organisation by ensuring people provide valid details.
Verify bank accounts and check whether they support direct debits, faster payments and CHAPS.
Avoid unnecessary bank charges and internal admin associated with re-processing failed payments.
Validate customer details in real-time and avoid the risk of asking them to correct their details later.
Reduce payroll issues and salary delays by validating employee bank details as soon as they're provided.
Automatically fill in direct debit forms and bank forms with all required details, quickly and accurately.
Postcoder and its team of address and technology specialists meet the needs of high-demand applications and rapidly growing businesses.
Built on quality management best practices you can trust.
Seamlessly handles enterprise volumes and traffic spikes.
Designed for secure, privacy-first data handling.
Proven reliability to keep your integrations running smoothly.
Our engineers are on standby 24/7 to respond to service disruptions.
Fast, reliable API performance at all times, even under load.
Connect easily with your existing tech stack.
Auto-fill UK bank and branch details from just a sort code and account number.
Personalised setup and best-practice guidance.
Smooth transition from legacy systems or providers.
Get help via chat, email or phone - at no extra cost.
Businesses rate Postcoder 4.7 stars out of 5 on the world's most trusted software marketplace.
"Having a more simplified checkout page with the help of Postcoder has had two major benefits to our business. Faster checkouts by customers who haven't had to type in their full address, a much simpler customer journey and a major reduction in data errors; where we saw a big drop in incorrect details entered."Alex Woods Digital Marketing Executive / Victorian Plumbing
"We picked Postcoder because the API is simple to use and it supports many countries which we want to scale out to."David Annez Head of Engineering / loveholidays
"The reason we like Postcoder is that the rooftop lat/long coordinates have proven to be far more accurate than any other service and Postcoder has hugely increased our successful delivery rates."Laura Bailey E-commerce Product Manager / Pasta Evangelists
"Postcoder offers a seamless integration with our services. It is very popular with our customers."James Gutterson Commercial Manager / Signicat
"Postcoder has been great; there has been a noticeable quality increase in our campaigns. In some the pickup rate went from 30% to 60-70% and our appointment ratings for a campaign went from a 15% average to 40% for one client!"Daniel Jones IT Technician / Lead Pronto
"Postcoder is a single API that provides all the features we need... Rather than integrate several APIs, we only had to integrate one."Carl Horn Head of Digital Servicing & Customer Transformation / Capquest
"Postcoder ensures that all the address data, the mobile number and the email addresses that our customers give us are correct. It really speeds up the process for our customers."Julie Taylor Operations Director / Barrhead Travel
