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How to sell to New York counties

New York counties must use sealed bids for purchase contracts over $20,000 and public works over $35,000, advertised at least 5 days before opening and awarded to the lowest responsible bidder, or best value for purchases if a local law allows. Prevailing wage applies to all county public works, and retainage is capped at 5% when full bonds are required.

New York has 62 counties. Five are the boroughs of New York City, which has its own procurement rules. The other 57 buy under the General Municipal Law (GML), which covers all political subdivisions, and County Law 408-a. Some counties have charters with a county executive and legislature; others are run by a board of supervisors. Both are bound by GML 103. Below the bid thresholds, each county writes its own procurement policy.

At a glance

Topic Rule Source
Who buys County officers, boards and agencies; board or legislature sets local rules County Law 408-a
Goods and services Sealed bids over $20,000; county policy below; professional services excepted GML 103; 104-b
Construction Sealed bids over $35,000; Wicks Law separate specs on larger buildings GML 103; 101
Notice Official newspaper; at least 5 days before opening GML 103(2)
Award Lowest responsible bidder; best value for purchases if authorized by local law GML 103(1)
Bid security No statewide rule found; check county policy —
Bonds Payment bond under SFL 137; county application not confirmed; check the solicitation SFL 137
Prevailing wage All county public works; no minimum contract size Labor Law 220
Retainage 5% max (10% if full bonds not required) GML 106-b
Prompt payment Public works: 30 days (45 with elected-official approval); subs in 7 days GML 106-b
Cooperative purchasing OGS contracts and piggybacking allowed GML 104; 103(16)
Preferences and certifications Non-collusion and Iran divestment certifications GML 103-d; 103-g
Architects and engineers Professional services excepted from bidding; county policy governs OSC guide; GML 104-b

Who buys

Most counties are governed by an elected county legislature or board of supervisors, often with a county executive or administrator. Larger counties have a purchasing department. County officers, boards and agencies must award purchase and public work contracts to the lowest responsible bidder after advertising where GML 103 requires. The board or legislature may require bidding even below the GML 103 amounts, and may let other local governments buy off county contracts (County Law 408-a). Charter-specific purchasing rules were not reviewed; ask the county.

Goods and services

Contract Rule
Purchase contracts over $20,000 Competitive sealed bids, measured by expected 12-month spending on the same items (GML 103(1))
$20,000 or less The county's written procurement policy (GML 104-b)
Professional services and insurance Excepted from bidding; RFPs recommended (OSC guide)

Splitting purchases to stay under a threshold is not allowed (GML 103).

Below the thresholds. Every county must adopt written procurement policies for purchases that do not require bids. The policies call for alternative proposals or quotes, such as written RFPs or written or verbal quotes. The statute sets no number of quotes. Each procurement must be documented, any award to someone other than the lowest responsible offeror must be justified in writing, and the board reviews the policy every year (GML 104-b).

Construction and public works

  • Threshold: public work contracts over $35,000 require sealed bids (GML 103(1)). Smaller jobs follow the county's 104-b policy.
  • Wicks Law: public building projects need separate specifications for plumbing, HVAC and electrical work above $500,000 in most counties, $1.5 million in Nassau, Suffolk and Westchester, and $3 million in the five New York City counties (GML 101).
  • Bid security: no statewide statute found. Counties set it in their bid specifications; check the solicitation.
  • Bonds: State Finance Law 137 requires a payment bond on public improvements by a "municipal corporation." Bonds may be waived for contracts under $100,000, with 20% withheld from progress payments instead. The statute's text refers to improvements "for the state," so its application to county projects is not confirmed. No general statute requires a performance bond from county contractors, though GML 106-b assumes many counties require full bonds. Check the solicitation.

Notice and award

  • Notice: in the county's official newspaper or a designated newspaper. Counties may also use the state procurement opportunities newsletter. At least 5 days must pass between first publication and the opening, and the notice states the time and place of the public opening (GML 103(2)).
  • Electronic bids: allowed if the county authorizes them by resolution (GML 103(1)). This version of the law is set to sunset June 1, 2028.
  • Award: to the lowest responsible bidder. Purchase contracts, but not public works, may be awarded on best value as defined in State Finance Law 163, if the county authorizes it by local law. Ties may go to any tied bidder or be rebid (GML 103(1)).
  • Iran: persons on the state's Iran divestment list are not responsible bidders (GML 103-g).

Prevailing wage

Labor Law 220 applies to public work contracts of municipal corporations, including counties, with no minimum contract value. For county work outside New York City, the Commissioner of Labor is the fiscal officer who sets rates (Labor Law 220(2), (5)(e)). See prevailing wage.

Getting paid

On public works contracts with counties outside New York City (GML 106-b):

  • Prompt payment: the county pays within 30 days, excluding legal holidays, of an approvable requisition, or 45 days if an elected official must approve it. Late payments earn interest at the state Tax Commissioner's overpayment rate (none if under $10).
  • Subcontractors: the contractor pays subs within 7 days of receiving payment.
  • Retainage: no more than 5% of each progress payment. Up to 10% is allowed only if the county does not require both full performance and payment bonds.
  • Release: after substantial completion, the county gives a punch list within 45 business days and pays the balance, less twice the value of unfinished items and claims.

No county prompt payment statute for goods and services was found; check the contract.

Cooperative purchasing and state contracts

  • OGS contracts: counties may buy through state Office of General Services contracts for purchases over $500. A county that has already received bids may use OGS only if the OGS price is lower for the same terms (GML 104).
  • Piggybacking: counties may buy apparatus, materials, equipment, supplies and related installation, maintenance and repair services off federal, state or other local contracts that were let to the lowest responsible bidder or on best value and made available to others. MWBE and preferred-source rules still apply (GML 103(16)). This authority sunsets June 30, 2027 unless extended.
  • GSA Schedule 70: allowed under GML 103(1-b), which sunsets July 31, 2029.
  • County contracts: a county board may open its contracts to other local governments (County Law 408-a(2)).

See cooperative purchasing.

Preferences and required certifications

  • Non-collusion: every bid where competitive bidding is required must include a non-collusive bidding certificate (GML 103-d).
  • Iran divestment: bids to political subdivisions must include an Iran Divestment Act certification (GML 103-g).
  • Preferred sources and MWBE: state preferred-source (State Finance Law 162) and MWBE requirements are not waived by piggybacking (GML 103(16)).
  • Federal labor violations: counties may consider Davis-Bacon, Copeland and Contract Work Hours Act violations in judging responsibility (GML 103(1-c), sunset March 18, 2027).
  • Local, veteran or in-state preferences, E-Verify and Israel boycott: none found for counties; check the solicitation.

Architects and engineers

Architects, engineers and other professional services are excepted from GML 103 bidding. Counties buy them under their 104-b policies, usually by RFP, and price need not be the only factor (OSC, Seeking Competition in Procurement). We did not find a state qualifications-based selection mandate for counties.

Practical tips for New York

  • Ask for the county's 104-b procurement policy to learn its quote rules below $20,000 and $35,000.
  • Watch the official newspaper and the state procurement newsletter. Notices can run just 5 days before opening.
  • Price prevailing wages into every public works bid, however small (Labor Law 220).
  • Include the non-collusion and Iran certifications with every formal bid (GML 103-d; 103-g).
  • Check New York counties for each county's bid platform, contacts and agendas.

Questions

What are the bid thresholds for New York counties?

Sealed bids for purchase contracts over $20,000, counting expected 12-month spending on the same items, and for public works contracts over $35,000 (General Municipal Law 103). A county board may require bidding below these amounts (County Law 408-a).

How are New York county bids advertised?

In the county's official newspaper or a designated newspaper, and optionally the state procurement opportunities newsletter, with at least 5 days between first publication and bid opening. Bids are opened in public (General Municipal Law 103).

Who wins a New York county bid?

The lowest responsible bidder. For purchase contracts, but not public works, a county may award on best value if it has authorized that by local law (General Municipal Law 103).

How do New York counties buy below the bid thresholds?

Under written procurement policies adopted by the county, which call for quotes or proposals, document each purchase and justify any award to someone other than the lowest responsible offeror (General Municipal Law 104-b).

How much retainage can a New York county hold?

No more than 5% of each progress payment, or up to 10% only if the county does not require full performance and payment bonds (General Municipal Law 106-b).

How fast do New York counties pay contractors on public works?

Within 30 days of an approvable requisition, or 45 days if an elected official must approve it, with interest on late payments. Contractors pay subs within 7 days (General Municipal Law 106-b).

Can New York counties buy from state or other contracts?

Yes. Counties may buy through OGS state contracts and may piggyback on federal, state or other local contracts for goods and related services (General Municipal Law 104; General Municipal Law 103(16)).

Sources

Last reviewed Oct 31, 2026. This is general information, not legal advice. Laws and thresholds change; check the current statute and the bid documents.

How to sell to New York counties | FactWise