Bonding Capacity Letter: What Texas Bid Packets Ask For
What a bonding capacity letter says and doesn't guarantee, real Texas packet wording, single vs. aggregate limits, and a sample letter for your next bid.
Houston Public Bidding Guide
How to bid Houston public work, and the bond each owner asks for.
You found a City of Houston, Harris County, school district, or MUD job. Here is where each one posts, how to register, what bid security it wants, and how fast the final bonds are due if you win.
- Four owners, side by side
- Drawn from owner documents, statutes, and sample packets
- Last checked October 30, 2026
The short version
Houston public owners, side by side.
Drawn from owner standard documents, Texas statutes, and the sample packets we read. Your solicitation always controls.
| Owner | Where bids post | Bid security | Final bonds due |
|---|---|---|---|
| City of Houston | Beacon Bid, plus SAP Business Network to transact | 10% of Total Bid Price | 10 days after Notice of Intent to Award |
| Harris County, Texas | Bonfire | 5% on public works or contracts expected to exceed $100,000 | 10 days after award and receipt of the bond application form |
| School districts | Each district's portal, such as IonWave or OpenGov | Packet sets it: 10% on several large Houston-area proposals, 5% elsewhere, some none | Packet sets it |
| MUDs | Engineer bid boards and plan rooms, plus newspaper notice | At least 2% on construction over $50,000, often 5% when a developer lets the job | Packet sets it: seven days in the packet we read and one listing |
City of Houston
City of Houston bid opportunities and vendor registration.
Beacon Bid has been the City's solicitation portal since February 1, 2025. Registering takes two steps, and they are not the same thing.
Register
Beacon Bid gives you access to solicitations and lets you respond; subscribe to the City as an agency there. Separately, the City says suppliers "are still required to register through SAP Business Network to transact business with the City of Houston." Help: Supplier Management Team, 832-393-8800. Some departments also list projects on their own pages, so follow the ad.
Bid security
The City's Standard Document 00200 calls for a certified check, cashier's check, or bid bond for 10% of the Total Bid Price, which includes unit prices, cash allowances, and alternates. A bid bond must name the City as obligee. That document dates from 2021 and parts of it predate Beacon, so follow your solicitation on how to submit. See Texas bid bonds.
Bid opening
Bids run by the City's Strategic Procurement Division open Thursdays at 11:00 a.m. Central on Microsoft Teams. For other departments, ask the contact on the solicitation.
If you win
Within 10 days of receiving the Notice of Intent to Award, deliver the documents marked on the checklist in Document 00495. The standard list includes performance, payment, and one-year maintenance bonds, plus insurance. On your written request, the project manager may grant up to 5 more days. Thresholds: performance over $100,000, payment over $50,000 for a city (Government Code §2253.021). Default can forfeit the deposit, and the City may claim the difference between your bid and the next award.
Job size
Many Houston Public Works packages we have seen run $3 million to $10 million or more. If your jobs are closer to $1 million or less, the realistic routes are usually subcontracting to a prime, work under a job order contract, or smaller county, school, and MUD jobs. Ask the prime or read the packet to see if a bond is required at your tier.
Harris County, Texas
How to bid Harris County, Texas jobs on Bonfire.
The Harris County Purchasing Agent runs bids through Bonfire and says there is no cost to register as a supplier. Pick your NIGP codes to get alerts. The same office buys for the Flood Control District, Harris Health, and the Toll Road Authority.
Bid security
Local Government Code §262.032(a) lets a county require a 5% bid bond on public works or contracts over $100,000. The County's standard bid requirements use a bid bond or cashier's check for that 5%. A cashier's check has to be dropped off physically, in a sealed envelope, before the due date, even when the bid is online.
Bid opening
Mondays at 2 p.m., per the Purchasing Agent's site.
If you win
The County's standard requirements call for bonds within 10 days after award and receipt of the bond application form, on its prescribed forms, or the County can render the award ineffective. The statute's own 30-day period for a §262.032(b) performance bond is a different default rule. Under Chapter 2253, public works need a payment bond over $25,000 and a performance bond over $100,000.
Check your packet
We read these requirements from the County's standard template and listings that quote construction packets, not from a current County Engineer packet. Questions go in writing: the County says it is not bound by verbal information.
School districts
Bidding HISD and other Houston-area districts.
Each district runs its own portal, and no statute sets ISD bid security. The packet does. Our school construction bond guide has the owner-by-owner detail.
HISD
The eBid portal is at houstonisd.ionwave.net, and alerts follow the commodity codes in your company profile. Registering "does not make your organization an approved vendor." HISD does business with approved vendors through its procurement process.
Katy ISD
Uses OpenGov. The district says registration is free for vendors.
Cy-Fair ISD
Uses IonWave, with a separate section for facilities and construction solicitations. For documents, it tells bidders to contact the architect, so a contractor who only watches alerts can miss a job.
The bonds
Performance over $100,000 and payment over $25,000 (Government Code §2253.021). The packet sets the deadline. Job-order and co-op work is another route into school repairs. None of the four co-op solicitations we reviewed clearly required a bid bond, a small sample.
MUDs
Finding and bidding MUD jobs.
Municipal utility districts rarely use a central portal. The district's engineer usually runs the bid. Look on engineers' own boards, such as bids.lja.com, and in plan rooms. Listings show many Houston-area MUDs on CivCast too.
Contracts over $150,000 must also run in a local newspaper (Water Code §49.273). Bid security is at least 2% of the total bid on construction over $50,000, and a district must accept a bid bond on contracts over $250,000 (§49.271). In packets we read, developer-let jobs usually asked for 5%. See MUD bid bonds for the 2% vs. 5% pattern, obligee wording, and post-award deadlines.
Certification
MWSBE and HUB: what changed.
Both programs are moving. Status as of October 30, 2026. Read the goal section of your packet.
City of Houston MWSBE
A federal judge ruled on July 28, 2026 against the race-based part of Houston's MWSBE program and barred those preferences in City contracts. The City has said its women-owned and small-business components are not affected, and it has challenged the ruling; reports differ on whether that is a request to reconsider or an appeal. Ask the Office of Business Opportunity what applies to your solicitation.
Texas HUB
The state HUB program narrowed in December 2025: the Comptroller now runs it as VetHUB, for service-disabled veteran-owned businesses. A lawsuit over that change is in the Travis County courts, a court order reinstated the plaintiffs' certifications in April 2026, and trial is reported for November 9, 2026. It applies to state purchasing and is separate from City of Houston and Harris County programs. Check the Comptroller's site for current status.
Before bid day
Four things to do before your first public bid.
- 01
Register with the owner
Do the portal registration and pick your codes before a job you want shows up. Some owners need more than one step.
- 02
Get set up with a surety
For single jobs up to about $1M, the application is short and based on your credit. Larger jobs need financial statements and a work-in-progress schedule.
- 03
Send us the packet
Email dale@mooninsurance.net. We check the percentage, the exact obligee wording, and whether the owner wants an original or a specific form.
- 04
Plan the final bonds
Seven to ten days goes fast. Line up the performance, payment, and any maintenance bond before you bid.
Why Surety Bond Houston
The bond shouldn't be what stops your bid.
Houston-local
40+ years of combined insurance experience, based in Houston.
Packet first
We read what the owner actually asks for before we write the bond.
Bid to closeout
One place for the bid bond, then the performance, payment, and maintenance bonds if you win.
Related bonds
The bonds this guide points to.
FAQ
Houston public bidding questions.
What bid security does the City of Houston require?
The City's standard instructions to bidders call for a security deposit of 10% of the Total Bid Price, by certified check, cashier's check, or a bid bond naming the City of Houston as obligee. The total includes unit prices, cash allowances, and alternates. Confirm it against your solicitation.
How long do I have to post bonds after winning a City of Houston job?
Ten days from receipt of the Notice of Intent to Award, under the City's post-bid procedures. The standard checklist includes performance, payment, and one-year maintenance bonds, marked per project, plus insurance and other forms. If you miss it, the City may declare a default and require forfeiture of the security deposit.
Is Beacon Bid registration enough to work with the City of Houston?
Not on its own. The City requires Beacon Bid registration to see and respond to solicitations, and separately says suppliers must register through SAP Business Network to transact business with the City.
How do I bid on Harris County, Texas construction work, and what bond do I need?
Register on the County's Bonfire portal, which the Purchasing Agent says costs nothing, and pick your NIGP codes. Texas law lets a county require a 5% bid bond on public works or contracts over $100,000 (Local Government Code §262.032). The County's standard requirements call for a bid bond or cashier's check, and bonds within 10 days after award and receipt of the bond application form. Check your packet. A cashier's check still has to be dropped off physically, even on an online bid.
Does registering on HISD's portal make me an approved vendor?
No. HISD's eBid portal says registering "does not make your organization an approved vendor." It gets you notices by commodity code. HISD does business with approved vendors through its procurement process, and each solicitation sets its own bid security.
Do MWSBE or HUB rules still apply to Houston bids?
Both are in flux. A federal judge ruled on July 28, 2026 against the race-based part of Houston's MWSBE program, and the City has challenged the ruling; reports differ on whether that is a request to reconsider or an appeal. The state HUB program now runs as VetHUB, with a lawsuit still in the Travis County courts and trial reported for November 9, 2026. As of October 30, 2026, read the goal section of your packet and ask the issuing owner what applies.
Found a job to bid?
Get bonded before the opening.
Call or email us the packet and your bid date. We'll tell you what it asks for and what comes next.