The objective is to collect tax four times a year which imo makes sense. With paye the hmrc receive tax/ni contributions either weekly or monthly, whereas soletraders like myself pay it twice yearly.
Im curious how they will calculate the forecasted earnings. That will be a quarterly faff imo, it'll be a back a fourth of over paying or underpaying
In its current form its a trial, I know I fair few trades that aren't going to partake. I can also see an issue with C.I.S, some companies I sub to are worse than useless issuing the certificates.
If you want to be a sceptic it could be a way of better monitoring the financial affairs of businesses.