When testing at 0.05 you will have a chi-squared 'critical value' that corresponds to this significance.

If you’re chi-squared calculated value is less than this critical value then p will always be > 0.05 and you do not reject the null hypothesis.

If you’re chi-squared calculated value is greater than this critical value then p will always be < 0.05 and you can conclude there is evidence to reject the null hypothesis.