Taking Vitamin C pills everyday is okay as long as you're reasonably healthy overall and have no kidney disease, kidney stones etc.
The recommended safe dosage for Vitamin C pills and supplements is 90 mg for men and 75 mg for women.
As long as you stay at or below that dosage of Vitamin C pills everyday when taking Vitamin C pills everyday then it's safe.
Some people may take more than that amount of Vitamin C pills everyday but only do so under a doctors recommendation.
Any dosage of Vitamin C pills each day of more than 2,000 milligrams per day for adults may cause kidney stones, nausea, and diarrhea.