When does the calculation of the Hawl begin for the purpose of paying Zakat on money?

If the capital you started your business with reaches the nisab (minimum threshold), then you must pay its zakat after one lunar year has passed since you owned it. However, if the capital does not reach the nisab, then you must calculate the year (hawl) from the time the capital reached the nisab. The hawl is calculated by the lunar year, and the value of the nisab is 85 grams of gold.