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We present the results of the second year of exoplanet candidate host speckleobservations from the SOAR TESS survey. We find 89 of the 589 newly observedTESS planet candidate hosts have companions within 3\arcsec, resulting in lightcurve dilution, that if not accounted for leads to underestimated planetaryradii. We combined these observations with those from paper I to search forevidence of the impact binary stars have on planetary systems. Removing thequarter of the targets observed identified as false-positive planet detections,we find that transiting planet are suppressed by nearly a factor-of-seven inclose solar-type binaries, nearly twice the suppression previously reported.The result on planet occurrence rates that are based on magnitude limitedsurveys is an overestimation by a factor of two if binary suppression is nottaken into account. We also find tentative evidence for similar close binarysuppression of planets in M-dwarf systems. Lastly, we find that the high ratesof widely separated companions to hot Jupiter hosts previously reported waslikely a result of false-positive contamination in our sample.

SOAR TESS Survey. II: The impact of stellar companions on planetary populations