Whether it’s opening a new shop, registering a company, or issuing the first invoice, checking an auspicious muhurat before starting a business is a strong tradition, especially among trading families.

Which tithi and weekday are considered favorable

Dwitiya, Tritiya, Panchami, Saptami, Dashami, and Ekadashi tithis in Shukla Paksha are considered auspicious. Wednesday and Thursday are considered especially favorable for business, since their ruling planets, Mercury and Jupiter, are traditionally associated with commercial acumen. Starting a new account book on Dhanteras or Akshaya Tritiya is considered auspicious for the whole year.

Which dates to avoid

Openings are avoided on Amavasya, Rikta tithis (Chaturthi, Navami, Chaturdashi), Bhadra Kaal, and Rahu Kaal.

Dhanteras and Akshaya Tritiya as unofficial defaults

Two dates get used more than any others for opening a new business account book, without anyone calculating a fresh muhurat from scratch each time. Dhanteras, two days before Diwali, is treated as auspicious for anything connected to wealth and commerce, and plenty of shopkeepers time their new financial year’s account book to start on this date even if the shop itself opened earlier. Akshaya Tritiya, falling in Vaishakh (April-May), carries a similar reputation, its name literally meaning “never diminishing,” and is popular for launching a business on the belief that whatever starts that day keeps growing rather than stagnating. Neither date needs an individual panchang consultation, which is part of why they’re used as defaults for family businesses wanting a good start without a lengthy calculation.

What the opening ceremony actually involves

Trading families tend to run a fairly consistent sequence on opening day, regardless of what the business is. It starts with a short Ganesh puja, followed by breaking a coconut at the threshold before the first customer is let in. The cash register or the first page of the account book gets a kumkum swastik drawn on it, and the first sale of the day, called bohni, matters symbolically more than its rupee value; some shopkeepers deliberately give the first customer a small discount, treating that transaction as setting the tone for the year rather than as a normal sale. A small puja thali with a diya, incense, and sweets stays near the entrance through the opening hours. None of this needs to be elaborate; a family running a small kiosk follows a scaled-down version of the same sequence as a business opening a full showroom.

The muhurat almost never lines up neatly with when GST registration clears, when a commercial lease actually starts, or when a company’s incorporation certificate comes through, since those run on government and landlord timelines, not a panchang. Most business owners treat these as two separate events on purpose: the legal and financial paperwork gets filed whenever the process allows, and a specific auspicious date and hour is reserved for the ceremonial opening, the first day the shutters actually go up with a puja and the first sale. It’s common for a shop’s real trading to start weeks after the lease and licenses are already in place, with the owner deliberately holding off the physical opening until a good muhurat comes around on the calendar.

Check your date’s day-of timing

Once a date is fixed, Rahu Kaal and Abhijit Muhurat fall at different times within that same day. Select your city on the muhurat page to see that day’s Rahu Kaal and Abhijit Muhurat, and keep the opening within a good choghadiya with Rahu Kaal avoided.

The final call is yours

If the lease or licensing timeline forces an opening date that isn’t ideal on paper, most priests suggest doing the puja and the symbolic first sale on the closest genuinely good date instead, even if the shop has technically been operating for a few days already. The ceremonial start matters more than the calendar-perfect one.