Banks would work normal business hours and collect physical checks in batches to process. Hence why batch processing existed.
Our rails run on a basically extinct programming language called COBOL which some banks are now not even hiring for.
The banks adopted Vocalink, costing pennies per transaction and taking ~15 seconds. A more recent development - TrueLayer, one of Europe's biggest open banking platforms, launched its closed loop payment product in a handful of countries. It features instant withdrawals and refunds, instant reconciliation, instant access to funds, frictionless checkout, reduced fraud (PSD2 & SCA compliant), and more.
Europe's open banking mandates and compliance networks have typically come from top down - allowing a new ecosystem of fintechs to be built leveraging faster technology and open data. The US has thousands of banks versus the UK which has hundreds -
In fact, we still mostly operate on normal business hours only. Best we had a couple years ago was Popmoney by Chase but you could only send money to another Chase user. Now we have more options like Venmo, Zelle, Cash App, etc. Research does show that bank-provided solutions like Zelle are less popular than tech-provided solutions like Venmo and Cash App despite many shortcomings.
So what happened when the the UK got better? (note: fraud also skyrocketed it was not all positive!)
ACH governance requires supermajority (75%) to vote yes. >50%, <75% voted for a faster payments system, citing fraud concerns and overall resistance to overhauling the system because it's too much work and why fix something if it's not crashing and burning yet right? Not only does this complaint come from inside of the Fed though, it also comes with businesses - they've build their system on old rails and migrating to new ones is also a lot of work for them.
With a new system, wouldn't you just wipe out some wire money as instant payments would theoretically cost less and have great accessibility? For references, wires cost ~$30. In 2018, debit cards were the most popular US payment method and their fattest revenue line, approximately 23-44 cents per transaction in 2018. Since then the number has come down to less than half a cent.
Enter Zelle, Cash App, Venmo, etc. Even Amazon, Google, Apple. Paypal even recently hiked fees for instant transfers as usually those settle in 1-3 business days.
In fact as of February 2021, Zelle started running on RTP. Smaller banks and credit unions stayed away though, praying for the Fed to build something. In the meantime, RTP reached over half of US demand deposit accounts because the biggest banks took part in it.
And of course, the Fed promised something that it would not deliver for many, many years.
No more 9-5, business hours only. All day every day payments will be here. FedNow will provide access through the Fed’s FedLine® network (10,000+ financial institutions network).
RTP participants usually pre fund into an account that doesn't appreciate in value, aka remove master account liquidity.
The big banks that invested a lot of mulla into RTP could be salty that FedNow is entering the arena. We don't know if RTP and FedNow will be interoperable. Tbh, we don't even know if FedNow will roll out when it is supposed to. Lots of things are still in the air but what is clear is that there will likely be some sort of market share war between them because we live in a capitalist society.
Hopefully our experience won't be disrupted.