Money Saving Expert Martin Lewis has told Good Morning Britain viewers they could be owed hundreds in tax if they have claimed PPI.
The deadline for applications to reclaim mis-sold payment protection insurance pass a week ago, but the financial guru said there is still more money to be squeezed out of the process.
Speaking to presenters Susanna Reid and Ben Shephard, he said: "If you have put a claim in or have had a payout in the last four years, then you could be entitled to reclaim tax.
"When PPI is paid, tax is taken off automatically, 20% is automatic.
"The money is a savings interest so people who do not pay tax should not pay and basic rate taxpayers are entitled to £1,000 of savings a year without paying tax.
"But the tax [on PPI payouts] it is automatic and you are entitled to reclaim that tax back using the R44 form."
He said he was simplifying the process, as it can be quite complicated because the form is the general reclaiming form and looks daunting, but urged people who think they have paid tax on their payout to give it a go and fill it in.
He added: "Some people have claimed back £900 in tax."
Earlier this week , Martin told people if they had been caught up in the technical problems during last Thursday's deadline day, you can appeal to your bank and ask for your application to be taken late.
He told presenters, Holly Willoughby and Phillip Schofield on This Morning, that there have been massive technical problems across a number of sites because of the web traffic, this led to Santander extending their own deadline, although this has now passed.
But he added: "For anyone who got stuck in that, if you missed out because of a technical problem, do it very quickly, but get in touch with them straight away."
Many banks will see this as circumstances out of the individual's control and should still accept their application.
If they do not accept it, Martin Lewis advised that you go to the financial ombudsman.
He also said: "Or if you were unable to make the deadline because you were taken to hospital, personal circumstances, you can still try and claim."
He also advised that it may take a while to hear back due to the backlog of claims that have since come in.
He added: "I think it is going to take time, as long as you have beaten the deadline."
If these circumstances do not apply to you, then you have missed the deadline and can no longer make a claim.
