If you’re projected to exceed the relief by the end of this tax year , I presume you could take your foot off the peddle for the remaining months of this year.
If you fall short of your allowable relief you could top it up next year with a lump sum AVC before end of October 2025 and apply it to tax year 2024.
Similarly, if you didn’t max your allowable relief for 2023, you could top that before end of October this year.
I don’t work in financial services. Just speaking from my own experience.