A replacement saddle could be the solution, but again that's a job for someone who knows what he's doing.
The first thing to remember is that it is perfectly normal for a guitar to settle over time and reach an equilibrium that's slightly different to how it left the factory. With the width of the saddle there is a small range for fine tuning intonation. But the underlying reason for a change in intonation is usually a change in the required angle of the neck/body join as the instrument settles.
So, if the adjustment required is within the range available, a replacement saddle will sort things. But if not, the neck angle might need attention. This is nothing to worry about, Taylor guitars are designed with a bolt on neck using threaded inserts and they supply a selection of shims to their authorised repairers that are especially designed to fine tune the neck/body join with a high degree of accuracy. The same shims are used in the factory for the original set-up.
For that reason, I would strongly recommend using a Taylor authorised repairer. And maybe even consider asking for it to be done under the warranty, although it's just over 12 months old EU guidelines would suggest that the warranty should be 2 years.
When the going gets weird, the Weird turn Pro.