Every character on Jiǎoluò Shūwū read as ta in any tone — 3 readings total across the four tones. Pick the tone you mean.
If you have the sound ta but not the character, here are the 3 characters read this way: 他 (tā, he, him; another), 她 (tā, she, her), 它 (tā, it; the non-human third person).