How do revenue follow up on tax evasion info

almost sure? or sure.

There is an online report section where it states the information will be treated confidentially, Revenue may ask you for more information.

Whether you should or not, well that's a different question.

Sorry, they could probably do a quick check on his VAT returns to see if it looks like he returned them, but the information is very limited. They might then select him for audit. I'm sure they'd then look to make sure your work is included in the calculations, also was the money lodged to a bank account.

If he only did a couple of jobs off the books, it may look a bit obvious if they ask about jobs around the time of your work.

He doesn't even know if it was a cash in hand job. There's more to this...

If it was a cash job and he agreed to it that's different. I've had small jobs done without receipts. Not a problem.

I did however have a large job done through a council grant. I was specifically told to pick a registered builder for vat purposes. The builder was aware from the start it was a grant and the quotation detailed costs and vat.

When finished we paid and asked for paperwork to reclaim vat. Some replies were: You didn't pay vat. The vat is not reclaimable. You're not working so you can't reclaim it. I'll have to talk to the accountant and get back to you.

In the end after over two years the builder admitted to my wife he never declared the job and tried to get her to claim vat back on someone elses job. I refused and said that I was taking it up with Revenue. Twenty minutes later the builder was at my door. He threw an invoice at us like we were the ones in the wrong and told us he had just lost 13% on our job.

My point is if the OP agreed to a cash job it's poor form reporting it.

If it wasn't a cash job I'd be asking for my receipts.

I thought I saw the OP post in another thread about an underfloor heating leak issue and just found the thread there. There was a builder with their own plumber hired to do work and also another plumber who did some work or similar for the OP who were blaming each other for the fault. So that is the motivation for reporting to revenue instead of just getting both parties to sort the issue out.

You took the risk when you paid him cash, knowing you were getting a lower price, which you were clearly happy to do. Does he have insurance? Go that route before snitching to Revenue.

Have you actually found out who was responsible for the leak? You had 2 plumbers both blaming each other for the issue. Maybe find that out before going to revenue.

You're own words from the other thread "there were two plumbers involved in the extension" "both plumbers who were involved in the extension are blaming each other. The builder is trying to distance himself from this now blaming one of the plumbers." Find out who is to blame before you do anything.

If it was a botched job with breaches of building regulations your first step if the builder won't rectify is to contact the building control authority in your county and ask for an inspection of the work. This is how my problems were fixed although it was the council that resolved it and not the builder in my case.

Is builder/ tradesman registered for VAT and obliged to levy it? If so, did the builder give you a VAT receipt or VAT invoice? Did you pay in cash?

These are relevant questions. If answer yes to all above and you have a suspicion that they pocketed the VAT paid in cash, you might have grounds to report. But it may only be a suspicion and that's not really good enough.

How is the consumer in any way liable in Revenue's eyes if tax evasion has taken place by the supplier.

"I was asked for cash, I paid cash. I assume he is fully tax compliant."