Farmers in England are still owed up to £140 million in 2015 Basic Payments, with just weeks to go until the end of the payment window.
A total of 79,505 2015 BPS claims have now been completed, representing 91 per cent of the total claimant population.
This represents 78,638 payments plus another 867 that have been cleared but either resulted in no payment being due or no payment being currently possible, for example due to probate.
Most of the remaining claimants received UK Treasury-funded bridging payments at the end of April, representing approximately half of their full payment.
The RPA, which for a number of months has not been publishing details of the 2015 BPS fund, revealed £1.29 billion has now been paid out from a maximum estimated fund value of £1.43bn.
This leaves about £140m still owed to claimants in England in a variety of categories.
According to the NFU, this includes millions of pounds thousands of farmers who have supposedly received full payments but have been underpaid, as well as the balance on bridging payments.
NFU senior BPS adviser Richard Wordsworth said this was a ‘significant’ amount still owed.
He said: "The key is how long will the industry have to wait for top ups to bridging payments and correction to what RPA consider is full and correct payments.
"Farmers’ cash flows are still under pressure at a time of the year when costs exceed income."
NFU vice president Guy Smith said the £140m still owed will include tops ups to bridging payments, which the estimates to be worth about £60 million. "But that still leaves a ’missing’ £70-80m," he added.
Mr Smith said the continuing failure of the RPA to deliver full payments - it had expected to have virtually completed the process by the end of March - raised further questions about how well the RPA’s IT was functioning, particularly for commons and inspections claims.
An RPA spokesman said: "We continue to process and pay all remaining BPS 2015 payments.
"We have always said that with commons and some inspections cases it has taken longer to collect and validate all the information needed to make a payment that does not risk disallowance.
"Our focus remains on making compliant payments."
Mr Wordsworth has summarised who is still owed BPS money in England and said the NFU was continuing to chase RPA on behalf of members with payment concerns.
The key point to draw from the above categories is that the RPA can rectify the claim issues now and pay the correct monies within weeks, Mr Wordsworth said.
Below are other groups where payments are due, but timescales are less certain at this time.
RPA chief executive Mark Grimshaw said: “I am pleased that over 85,500 applications were received ahead of the 16 May deadline with such a high proportion – 3 out of 4 claims - submitted online, including a number who switched from paper to online.
“The Rural Payments Service worked well, and continues to do so to enable farmers to make their applications on time and to make certain changes without penalty until May 31.
“I would urge anyone yet to make their application for 2016 to do so as soon as possible before 10 June so they don’t miss out.”
RPA is encouraging farmers who may have an outstanding query, or are waiting for the balance of their 2015 payment, to still apply as soon as they can – using the latest information they have available – to avoid incurring penalties
Farmers yet to apply can continue get assistance at five online support centres open across England, via the Rural Services Helpline and advice and guidance available on GOV.UK.