A sealed bid must reach the exact place named in the solicitation, in the required envelope and marking, before the deadline by the buyer's official clock. Late bids are usually rejected and returned unopened, no matter how they were sent. Plan to arrive early, keep proof of delivery, and follow every packaging and labeling rule word for word.
What sealed means
A sealed bid stays closed until the official opening time, so no one can see or change prices early. Buyers protect this strictly because it is the basis of fair competition. If a package arrives open, unmarked or in the wrong place, the buyer may have no choice but to reject it.
Treat delivery as part of the bid, not an errand at the end. Assign one person to own packaging and delivery, set an internal deadline a day or more before the real one, and build a short checklist from the instructions to bidders. A strong price is worth nothing if the package arrives late or unmarked.
Packaging and labeling
Follow the solicitation's instructions exactly. Typical requirements include these.
- An outer envelope or box marked with the solicitation number, title, due date and your company name.
- Separate sealed envelopes for price and technical parts, when the buyer asks for them.
- The exact number of originals and copies requested, plus any required electronic copy.
- Original signatures where required, and notarized forms if asked.
- The bid bond or other bid security inside the correct envelope.
Mail and courier delivery
Shipping moves the risk onto timing you do not control. Packages often reach a central mailroom first, and the clock that counts is usually the time stamp at the office named for receipt, not the time the truck reached the building. A postmark or shipping label usually does not count.
If you ship, send it several days early, use tracking, address it exactly as written, and confirm with the named contact, where allowed, that it arrived.
Hand delivery
Hand delivery gives you the most control. Plan for traffic, parking, building security, sign-in lines and finding the right room. Bring a copy of the solicitation page that names the delivery location. Ask for a time-stamped receipt and keep it. Arrive with enough margin to fix a missing signature on the spot.
Deadlines and the official clock
The due time is set by the buyer's official clock, which may differ from your phone. A bid stamped one minute late is late. Watch for addenda that move the due date, time or delivery location, and confirm the time zone for remote buyers.
Before the deadline you can often withdraw or replace your bid, usually by a written request from an authorized person. After the deadline, changes are generally not allowed.
Electronic sealed bids
Many buyers now accept sealed bids through an online portal. The same deadline rules apply. Upload early, since large files, slow connections and portal errors are common close to the deadline. Check file size and format limits, confirm every required file is attached, and save the confirmation receipt. A draft that was never submitted counts as no bid.
Some portals also require each company user to register and be approved before they can upload, which can take days. Register and test your login well before the due date, not on the morning bids are due.
Rules vary by agency and state; check the solicitation and your own advisers.
Common questions
Is a postmark before the deadline enough?
Usually not. Most buyers count the time the bid is received at the named location, not the time it was mailed.
Can I change my bid after I deliver it?
Often yes, before the deadline, if you follow the solicitation's withdrawal or modification rules. After the deadline, changes are generally not allowed.
What if the office is closed on the due date?
Contact the named buyer in writing right away. Buyers sometimes extend the deadline by addendum, but do not assume it.
Can I attend the bid opening?
Public bid openings are usually open to anyone. Attending lets you hear prices read aloud and see who bid.