first eu company customer wants an invoice with their vat number and the reverse charge note - what actually changes

The pragmatic route a lot of solo people take: move to a merchant of record, where the platform is legally the seller and handles VAT, invoices and filings. You pay noticeably more than a plain card processor - a percentage plus per transaction, not a rounding error - but you stop owning the compliance.

Compare that percentage against what an accountant charges for quarterly filings where you live and the arithmetic usually points clearly one way. Under a few thousand a month it's normally the platform.

And validate the VAT number rather than trusting what they typed. There's an official EU checking service and you want the result on file - if the number is invalid the reverse charge doesn't apply and that's your problem, not theirs.

Careful with the 'use a merchant of record and forget it' framing. It solves consumption tax, it does not solve your own income tax, it does not remove your record-keeping obligations, and if you're exposed on a year of past EU consumer sales, switching platforms today doesn't fix yesterday.

Deal with the backlog question honestly first. It's usually much smaller than the panic suggests, but it does not fix itself.

Sorted this in January and the bit that took longest was embarrassing: my checkout didn't collect a company name or a VAT number at all, so I had no way to tell a business from a person, which is the distinction the entire thing hangs on.

Added an optional 'buying as a business' toggle with company name and VAT number fields. Roughly one in six of my sales tick it. I'd assumed almost none, and had been treating a chunk of business sales as consumer sales without knowing.

Sequential invoice numbers starting today. Never reuse one, never leave a gap. That single habit prevents most of the future mess.

Save the validation response, not just the outcome. A dated record of the check has settled this for me before.