Government procurement is the process federal agencies use to buy goods, services, and construction from private businesses, and it runs on a detailed rulebook — chiefly the Federal Acquisition Regulation — that dictates how opportunities get advertised, how bids are evaluated, how contracts are awarded, and what contractors must do after they win. Agencies spend hundreds of billions of dollars each year through this system, and the businesses that consistently win work are the ones that understand the lifecycle before they start chasing solicitations.
The Four Ways Agencies Buy
There is no single federal purchasing process. The method an agency uses depends on the dollar value of the buy and how complex the requirement is.
Sealed Bidding
When an agency knows precisely what it wants and price is the deciding factor, it publishes an invitation for bids. Companies submit sealed price proposals, and the award goes to the responsible bidder whose conforming bid is most advantageous to the government based on price and price-related factors like transportation costs and applicable taxes.1Acquisition.GOV. Part 14 – Sealed Bidding There is no negotiation. Bids are opened publicly. This method fits commodity purchases and standard construction where specifications leave little room for interpretation.
Contracting by Negotiation
Complex projects use a negotiated approach that weighs technical capability against cost. Agencies evaluate proposals under a “best value” framework, meaning a higher-priced offeror with superior technical strengths can beat a cheaper competitor.2eCFR. 48 CFR Part 15 – Contracting by Negotiation The agency can hold discussions with offerors to address weaknesses before making a final selection. Most professional services, IT systems, and research contracts run this way.
Simplified Acquisition Procedures
For purchases below $350,000, agencies use streamlined procedures that cut paperwork and shorten timelines.3Acquisition.GOV. Threshold Changes – October 1st, 2025 Below the $15,000 micro-purchase threshold, a single contracting officer can buy without soliciting competitive quotes. That threshold drops to $2,500 for service contracts covered by prevailing wage requirements and $2,000 for construction subject to the Davis-Bacon Act, because labor law protections kick in at different price points.4Federal Register. Federal Acquisition Regulation: Inflation Adjustment of Acquisition-Related Thresholds
Federal Supply Schedules
The General Services Administration manages long-term contracts, known as Federal Supply Schedules, that let agencies buy pre-vetted commercial products and services at pre-negotiated prices.5Acquisition.GOV. FAR Subpart 8.4 – Federal Supply Schedules Getting on a Schedule takes upfront work — you negotiate pricing and terms with GSA — but once you’re on, agencies across the government can buy from you without running a full competition every time.
Registering on SAM.gov
Before you can bid on anything, you need a Unique Entity Identifier and an active registration in the System for Award Management. If you’re not registered, your proposal will be rejected.6SAM.gov. Entity Registration
Registration requires your legal business name, physical address, taxpayer identification number, and banking information for electronic funds transfer. All of it must match IRS records exactly; mismatches are the most common cause of delays. You also select North American Industry Classification System (NAICS) codes describing your business. Agencies use those codes to target solicitations to relevant vendors, so picking the wrong ones means missing opportunities you would otherwise qualify for.6SAM.gov. Entity Registration
One detail catches new contractors off guard. Your SAM registration expires every 365 days and must be renewed to stay active.7SAM.gov. Entity Registration Checklist If it lapses while you hold an active contract, payments stop until you renew. The renewal itself can take several business days, so set a reminder well before the anniversary.
Small Business Set-Asides
The federal government reserves a significant share of contract dollars for small businesses, but qualifying isn’t a matter of self-declaration. The Small Business Administration defines size standards by NAICS code, and they vary widely. Some industries measure size by average annual receipts over the past five fiscal years; others use average employee count over the prior 24 months. You must also count the receipts or employees of any affiliated companies you control or that control you.8U.S. Small Business Administration. Size Standards
Beyond the basic small business designation, the SBA runs several programs that create restricted competition pools. The 8(a) Business Development program supports businesses owned by socially and economically disadvantaged individuals, and participants are eligible for sole-source and set-aside contracts.9U.S. Small Business Administration. 8(a) Business Development Program The HUBZone program targets businesses located in historically underutilized areas.10U.S. Small Business Administration. HUBZone Program Women-Owned Small Businesses and Service-Disabled Veteran-Owned Small Businesses have their own set-aside categories. Certification requires supporting documentation — financial statements, proof of ownership, evidence of disadvantaged status — submitted through the SBA’s certification portal after your SAM registration is active.
Finding and Bidding on Contracts
All federal contract opportunities above $25,000 are posted on SAM.gov. You can filter by NAICS code, agency, set-aside status, and location. Each listing includes a solicitation document — a request for proposals for negotiated procurements, or an invitation for bids for sealed bidding — that spells out requirements, evaluation criteria, and submission instructions.
Read those instructions carefully. Missing a required document, using the wrong format, or submitting to the wrong address can get your proposal thrown out before anyone reads it. Most agencies now require electronic submission through their own portals, though some older or security-sensitive procurements still use physical delivery.
If your proposal arrives late, you’re almost certainly out. The narrow exception: a late proposal can be considered if it was received at the designated government office and was under government control before the deadline, evidenced by a time-stamp on the package or testimony from government personnel.11eCFR. 48 CFR 15.208 – Submission, Modification, Revision, and Withdrawal of Proposals In practice, that means the proposal was sitting in the agency mailroom before cutoff but hadn’t been routed yet. Handing it to a courier ten minutes before deadline is not a plan.
Award, Debriefings, and Protests
Once evaluation concludes, the agency issues a notice of award to the winning firm and notifies unsuccessful offerors within three days.12eCFR. 48 CFR Part 15 – Contracting by Negotiation – Section: 15.503 Notifications to Unsuccessful Offerors Any offeror who was in the competitive range can request a debriefing by submitting a written request within three days of receiving the notice. The agency must make every effort to hold the debriefing within five days of that request.
Don’t skip it. The agency walks you through the evaluation of your proposal’s strengths and weaknesses, the awardee’s overall ratings and price, and the rationale for the decision. This is some of the most valuable competitive intelligence available in government contracting, and it’s free.
If you believe the agency violated procurement rules, you have the right to protest, and the deadlines are unforgiving. An agency-level protest goes directly to the contracting agency, which aims to resolve it within 35 days.13Acquisition.GOV. Part 33 Protests, Disputes, and Appeals The more common route is filing with the Government Accountability Office. A GAO protest must be filed within 10 days after you learn the basis for your protest, or within 10 days after a required debriefing.14eCFR. 4 CFR 21.2 – Time for Filing If the agency receives notice of your GAO protest within 5 days of a debriefing or within 10 days of award, an automatic stay suspends contract performance while the protest is pending.15Acquisition.GOV. Subpart 33.1 – Protests GAO issues a recommendation within 100 days, or 65 days under the express option. If GAO sustains your protest, it can recommend that the agency reopen the competition and reimburse your bid preparation costs and attorney fees.
Protests based on flaws in the solicitation itself — unclear evaluation criteria, restrictive specifications — must be filed before the submission deadline. Wait until after award to raise a problem that was visible in the solicitation, and you’ve waived it.14eCFR. 4 CFR 21.2 – Time for Filing
After the Award: Performance and Payment
Winning is where the real work starts. Every federal contract incorporates specific FAR clauses governing quality standards, delivery schedules, reporting requirements, and your obligations as a contractor.16eCFR. 48 CFR Part 52 – Solicitation Provisions and Contract Clauses The agency assigns a Contracting Officer’s Representative to monitor performance and verify deliverables. Keep detailed records of every cost incurred and every milestone completed. These records are subject to government audit, and sloppy documentation is where contractors get into financial trouble during closeout.
For Department of Defense contracts, invoicing runs through the Wide Area Workflow system, a secure web platform that handles electronic submission of invoices and receiving reports.17Defense Logistics Agency. Wide Area Workflow Civilian agencies use their own electronic invoicing systems. Whatever the platform, invoices must include the contract number, line item details, and the format specified in the contract.
The Prompt Payment Act protects you from waiting indefinitely. Once you submit a proper invoice, the standard payment deadline is 30 days. If the agency pays late, interest accrues automatically starting the day after the due date — you don’t have to ask for it.18eCFR. 5 CFR Part 1315 – Prompt Payment The key phrase is “proper invoice.” If yours is missing required information, the clock doesn’t start until you resubmit a corrected version.
One other feature of federal contracts to understand up front: the government can end your contract at any time, for any reason, through a clause called termination for convenience. A version of this clause sits in virtually every federal contract.19eCFR. 48 CFR 52.249-2 – Termination for Convenience of the Government (Fixed-Price) You get paid for completed work already accepted, costs incurred on the terminated portion, settlement costs for terminated subcontracts, and fair profit on work performed — but the settlement can be adjusted downward if the government determines you would have lost money on the contract overall. Don’t invest heavily in upfront infrastructure without accounting for that risk.
Past Performance Ratings
Every contract above the simplified acquisition threshold generates a report card. Agencies are required to evaluate contractor performance at least annually, and again when the work is complete, using the Contractor Performance Assessment Reporting System (CPARS). Construction contracts are evaluated at a lower threshold of $900,000, and architect-engineer contracts at $45,000.20Acquisition.GOV. 42.1502 Policy
Ratings use a five-point scale: exceptional, very good, satisfactory, marginal, and unsatisfactory. A “satisfactory” rating means you met the contract requirements, nothing more. “Marginal” and “unsatisfactory” ratings signal you fell short and hurt future proposals.21Acquisition.GOV. Subpart 42.15 – Contractor Performance Information Source selection officials evaluating your next proposal review your CPARS history going back three years, or six for construction and architect-engineer contracts.
You have 14 calendar days to review and comment on any evaluation before it becomes visible to other agencies. Use that window. A written rebuttal becomes part of the permanent record and is visible to future evaluators.21Acquisition.GOV. Subpart 42.15 – Contractor Performance Information
Wage Rules for Federal Contractors
Certain federal contracts carry wage requirements that go beyond standard employment law, and getting them wrong can lead to back-pay liability and even debarment.
The Davis-Bacon Act applies to construction, alteration, or repair of public buildings and public works when the contract exceeds $2,000. Contractors and subcontractors must pay laborers no less than the locally prevailing wages and fringe benefits the Department of Labor determines for similar work in the area. For prime contracts exceeding $100,000, overtime at one and a half times the regular rate is mandatory for hours worked beyond 40 in a workweek.22U.S. Department of Labor. Davis-Bacon and Related Acts
The Service Contract Act covers service contracts rather than construction. Each contract’s wage determination specifies minimum hourly wages and health-and-welfare fringe benefits. The fringe benefit obligation applies to all hours paid, including vacation, sick leave, and holidays, up to 40 hours per week. Contractors can satisfy the requirement through actual benefits, cash equivalents, or a combination, but cannot take credit for benefits already required by other laws such as workers’ compensation or Social Security.23U.S. Department of Labor. Fact Sheet 67B: Meeting Requirements for Service Contract Act (SCA) Fringe Benefits
Cybersecurity for Defense Contractors
If you plan to pursue Department of Defense work involving controlled information, a separate compliance regime applies. The Cybersecurity Maturity Model Certification (CMMC) began phased implementation in November 2025 and rolls out over three years, with three levels tied to the sensitivity of data you handle. Level 1 requires an annual self-assessment against 15 requirements; Level 2 aligns with 110 requirements from NIST SP 800-171 and may require third-party assessment every three years; Level 3 adds 24 more requirements from NIST SP 800-172 and is assessed by the Defense Contract Management Agency. All levels require annual affirmation through the Supplier Performance Risk System.24Department of Defense Chief Information Officer. About CMMC CMMC applies only to defense contracts; civilian agency contracts have separate cybersecurity clauses.
Fraud, Kickbacks, and Debarment
The consequences for fraud and ethics violations in federal contracting are severe enough to end a company.
Submitting a false claim — inflating hours, misrepresenting product quality, billing for services not provided — exposes you to civil penalties between $14,308 and $28,619 per false claim, on top of treble damages equal to three times the government’s actual loss.25eCFR. Civil Monetary Penalties Inflation Adjustment Penalties apply per violation, so a pattern of overbilling across multiple invoices can produce staggering liability. The False Claims Act also allows private individuals, including your own employees, to file suit on the government’s behalf and collect a share of the recovery.
Any exchange of money, gifts, or anything of value between prime contractors and subcontractors to influence contract awards is illegal under the Anti-Kickback Act. That includes giving kickbacks, soliciting them, and rolling their cost into the contract price charged to the government.26Acquisition.gov. FAR 52.203-7 Anti-Kickback Procedures Prime contractors must maintain procedures to prevent and detect violations and report suspected violations immediately to the agency’s inspector general or the Attorney General.
The ultimate sanction is debarment — being banned from all federal contracting. A company can be debarred for fraud, bribery, embezzlement, tax evasion, or making false statements in connection with a government contract. Debarment isn’t limited to criminal conduct. A history of failing to perform, willful contract violations, delinquent federal taxes exceeding $10,000, and even knowing failure to disclose credible evidence of fraud can all trigger debarment proceedings.27Acquisition.GOV. 9.406-2 Causes for Debarment Contractors have an affirmative obligation to disclose credible evidence of criminal law violations and significant overpayments for up to three years after final payment. Sitting on bad news makes the eventual consequences worse.