I think, first and foremost, any kind of regular revaluation is very much welcome, whether that's five years or more frequently than that. The idea that we should leave it 20 plus years between revaluations, I think, is terrible. So, the big win would be legislating for any sort of regular revaluations, and to my mind anything beyond that is secondary by comparison. Again, whether five years, three years or one year or whatever is the right answer depends in part on a trade-off between principle and practicality. I think, personally, I might have leaned towards going straight for a three-yearly revaluation, but I don't feel very strongly about that.
For both council tax and business rates, there is the point about certainty for taxpayers and so on, and I think, actually, there is an advantage to having changes that are more frequent that will be smaller and more routine. I think there are practical advantages to that as well as practical challenges. The longer the period between revaluations, the bigger the jumps tend to be and the harder it is for people to know how big the jump is going to be. If you were revaluing it every year—. I'm not suggesting that's a practical proposition, but if, in principle, you were revaluing it every year, yes, people would be getting new valuations every year and would have to be getting used to that, but they would be relatively small changes and it would be easier for people to know what's coming. So, I think, even on the practical side and in terms of stability and predictability for taxpayers, there is actually advantage to more frequent revaluations.
To come to the other question as to what should be in primary legislation and where there should be discretion, again, I don't have a firm answer to that. I think one thing I've noticed is that the talk around this Bill is all about, 'We'll put five years in legislation, but we want discretion to be able to make it shorter.' I'm not sure there's actually anything in there that stops them from using that discretion to make the interval longer. I may have missed it, maybe that is in there, but if not, I think I'd like to put that in as discretion—if anything, discretion to shorten but not discretion to lengthen. Because I think while intentions might be good and it may be that the idea is, 'We'll try it out with five-year revaluations, and if it goes well, we might shorten it', the temptation that we've seen over the years is always to delay and put off revaluations because they can be politically difficult, creating winners and losers, and I'd be very wary of that.
In terms of should they have discretion to make the interval shorter, again, I can see the point of that and I can see the advantages. Again, given that I'm generally in favour of more frequent revaluations, it's easy for me to say, 'Well, let's make it easier for that interval to be shortened', but that's where I think, actually, there is also an advantage to giving taxpayers more certainty about when a revaluation is going to happen, and knowing that it's going to be every five years almost come what may, or every three years almost come what may, rather than saying, 'Oh, well, actually, Ministers might decide to change it and do it at a different time.' I think there are advantages to having more certainty in there, and making it harder to change the frequency of whether that's five yearly or three yearly.
Finally, there was also a question about impact on the housing market. Revaluations and expected revaluations, yes, we would expect to have an impact on the housing market. Most obviously, if the council tax bill attached to a property goes up, then people will be willing to pay less for the property, so the property value will fall and vice versa—as, in fact, would be in the majority of cases, council tax bills would go down, you would expect house prices to go up as a result of that, and that can even start to happen in anticipation of future revaluations. I'm not sure I actually see that as a problem. That's just reflecting reality; it's not, as it were, that those whose bills are going up are seeing losses twice over, or anything like that. Again, I think uncertainty is, if anything, more of a problem: if people buying and selling properties don't actually know what the council tax bill attached to that property is going to be, that makes it a little bit harder for people to buy and sell in good knowledge. But, again, I think that's an argument for having a stable system with regular revaluations; I don't think that's a good argument for having no revaluations or only very infrequently.