Net 30/60/90 Terms – Guide for Construction Materials & Parts Suppliers

Net 90 payment terms mean a buyer has 90 days from the invoice date to pay in full. In construction supply, Net 90 is one of the most common, and most cash-flow-straining, payment structures a materials supplier will encounter. Construction materials suppliers face significant cash flow challenges in an industry where extended payment cycles are the norm, with many projects running 60 to 90 days or more before payment arrives.

TL;DR

• Net 90 means payment is due 90 days after the invoice date, the longest standard B2B payment term.
• In construction, Net 90 is common on large commercial and government projects, but it creates serious cash flow pressure for materials suppliers.
• If multiple customers are on Net 90 simultaneously, you can have hundreds of thousands of dollars tied up in outstanding invoices at any given time.
• Resolve advances up to 100% of Net 90 invoices within 24 hours. Your customer still pays on their terms. Your cash flow operates on a 1-day cycle.
• To negotiate shorter terms, tie payment schedules to project milestones and offer early-pay incentives.

Key Takeaways

• Net 90 is the longest standard B2B payment term and is common on large commercial and government construction projects
• For materials suppliers, Net 90 creates compounding cash flow pressure: materials ship upfront, but payment arrives three months later
• Offering net payment terms has become standard competitive practice in construction supply; refusing to do so disqualifies you from many bids
• Non-recourse invoice financing lets suppliers advance up to 100% of invoice value within 24 hours while customers retain their Net 30, 60, or 90 terms
• Trade credit and sales growth are directly linked: businesses that offer net terms consistently win more accounts and larger orders than those requiring immediate payment

What Is Net 90? Definition, Examples, and Construction Industry Context

Net 90 means the buyer has 90 days from the invoice date to pay the full amount owed. It is the longest standard payment term in B2B commerce.

Concrete example: you invoice $80,000 of structural steel on August 1. Under Net 90, payment is due October 30. Meanwhile, your own payroll, supplier invoices, and overhead do not wait 90 days.

Is Net 90 Normal in Construction?

Yes. Net 90 is standard on large commercial construction projects and government contracts. General contractors and large project owners routinely impose extended terms on their supply chain because their own payment cycles, tied to project draws and owner funding, run long.

That said, Net 90 should not be accepted automatically. For most materials suppliers, Net 90 strains cash flow unless you have net terms financing in place. Before accepting Net 90 from a new customer, run a credit review. A large order on Net 90 from a buyer with a thin credit profile is a significant risk.

Net 30 vs. Net 60 vs. Net 90: Comparison Table

Net 30 vs. Net 60 vs. Net 90 Differences

The construction industry's project-based nature makes payment terms more complex than simple invoice dating. Key differences:

• Net 30: Standard for smaller projects, materials-only orders, or established relationships with reliable payment history
• Net 60: Common for mid-sized projects, custom orders, or new customer relationships requiring additional trust-building
• Net 90: Appears on large private commercial projects and government work. Federal contracts generally target payment within 30 days under the Prompt Payment Act, but subcontractor and supplier payment timelines in practice often run longer depending on contract structure

In construction specifically, payment terms are often tied to project milestones rather than standard invoice dates. This creates additional complexity for materials suppliers who deliver products upfront but wait for project completion or milestone achievement before receiving payment.

Common Payment Structures Beyond Standard Net Terms

• Pay-When-Paid: Payment to subcontractors and suppliers occurs only after the general contractor receives payment from the project owner. Enforceability varies by state; "pay-when-paid" typically affects timing, while "pay-if-paid" provisions are restricted or unenforceable in many states
• Retainage: Commonly 5 to 10% of each payment is held back until project completion to ensure quality and completion, subject to contract and state or public project rules
• Progress Billing: Payments made at specific project completion percentages (25%, 50%, 75%, 100%)
• Net 15: Shorter terms for smaller orders, new customers, or suppliers with tight cash flow requirements

How Net 90 Terms Affect Construction Supplier Cash Flow (With Examples)

Net 90 does not just delay payment. It compounds.

If you are supplying three active job sites simultaneously, each on Net 90, you may have $300,000 or more in outstanding invoices at any given time. Meanwhile, your own suppliers, payroll, and overhead do not wait 90 days. This is the cash flow trap that forces many construction materials suppliers to either turn down new business or take on debt to bridge the gap.

Consider a worked scenario: a supplier ships $120,000 of materials in month one. Payroll runs $40,000 per month. By the time the Net 90 invoice is paid, the supplier has absorbed $120,000 in costs against zero incoming cash from that order. If a second large order ships in month two on the same terms, the gap widens further.

The DSO impact is direct: if your average customer is on Net 90, your days sales outstanding is 90 or higher by definition. That is three months of revenue sitting in AR instead of your bank account.

Invoice financing for construction suppliers eliminates the trap. Resolve advances up to 100% of each invoice within 24 hours, so your cash flow operates on a 1-day cycle regardless of what terms your customers are on. Your customer still pays on Net 90. You get paid now.

See how construction suppliers using Resolve have reduced DSO and scaled order volume without straining working capital.

How to Negotiate Net 90 Down to Net 30 or Net 60

Accepting Net 90 is not always avoidable, but it is often negotiable. Specific tactics:

Tie payment milestones to project phases. Instead of a single Net 90 invoice at delivery, propose progress billing: 30% on order confirmation, 40% on delivery, 30% at project completion. This converts one 90-day exposure into three shorter ones.

Offer an early payment discount. A 2/10 Net 30 structure (2% discount if paid within 10 days, full amount due in 30) gives cash-rich contractors an incentive to pay faster. Adoption in construction is more limited than in other industries, but it works with buyers who have available capital and want to reduce their payables cost.

Tie volume commitments to shorter terms. Offer preferred pricing or priority fulfillment in exchange for Net 30 or Net 45. Larger customers with leverage often accept this trade when the pricing benefit is meaningful.

When to hold firm vs. when to accept Net 90. If the account is large, the buyer has a strong credit profile, and you have invoice financing in place, Net 90 is manageable. If the buyer is new, the order is custom or non-returnable, or the credit check raises flags, hold firm on shorter terms or require a deposit.

What to put in writing. Any agreed terms should appear in a signed contract or purchase order: exact due date, late fee structure, interest rate on overdue balances, and dispute resolution process. Verbal agreements on payment terms are difficult to enforce.

Why Construction Suppliers Need Net Payment Terms

The construction industry's structure creates unique challenges that make net payment terms not just beneficial but often necessary for competitive survival. Construction companies face more cash flow challenges than almost any other trade, creating a ripple effect throughout the supply chain.

Building Contractor Relationships

Contractors and construction firms operate with extended payment cycles as standard practice. When suppliers refuse to offer net terms, they immediately disqualify themselves from many bidding opportunities. Companies offering favorable payment terms are often chosen over competitors, particularly when working with large companies that have lengthy payment processes.

Net terms demonstrate flexibility and understanding of client needs, making customers more likely to continue business relationships and recommend services to others. This relationship-building aspect becomes crucial in an industry where word-of-mouth and reputation drive significant business.

Managing Cash Flow Cycles

The construction industry faces unique challenges including cost overruns, delayed payments, and the need for substantial upfront capital investments in materials and equipment before receiving payment. Many construction companies do not offer early payment discounts, further complicating cash flow management for suppliers.

For materials suppliers, this creates a difficult balancing act: extend credit to win business but risk cash flow strain, or maintain strict payment terms and lose competitive opportunities. The solution is strategic net terms management that protects supplier cash flow while meeting customer needs. Resolve's net terms management platform advances up to 100% of invoice value within 24 hours while your customers retain the 30 to 90-day terms they need.

Setting Up Net 15 and Net 30 Payment Terms for Building Materials

Implementing net payment terms requires careful planning and systematic processes to minimize risk while maximizing opportunity.

Credit Application Process

Before extending any credit terms, establish a formal credit application process. At minimum, collect business registration and licensing verification, trade references from other suppliers, bank references, and a business credit report. For smaller businesses, a personal guarantee adds a meaningful layer of protection.

Resolve provides instant business credit decisions with results typically delivered within 24 hours, eliminating weeks of manual verification while providing deeper insights than traditional credit bureaus.

Determining Credit Limits

Credit limits should reflect the customer's annual purchase volume potential, payment history with other suppliers, business size and financial stability, and your own risk tolerance. Start conservative with new customers and increase limits based on payment performance. Construction payment terms typically range from Net 30 to pay-when-paid structures, so your terms should align with market expectations while protecting your cash flow.

Managing AR When Customers Are on Net 60 or Net 90 Terms

Effective accounts receivable management is critical when operating with extended payment terms. Manual AR processes become overwhelming at scale.

Automating Invoice Management

Essential automation for construction suppliers includes:

• Automated invoice generation: Triggered by delivery confirmation or milestone completion
• Payment reminder workflows: Scheduled communications at 7, 15, and 30 days before due date
• Aging report generation: Weekly tracking of outstanding invoices by customer and age
• Payment portal integration: Self-service options for customers to view and pay invoices
• QuickBooks synchronization: Automatic booking of payments and reconciliation

Resolve's AI-powered accounts receivable automation platform automates the entire net terms workflow from invoice to payment, reducing days sales outstanding and accelerating cash flow through intelligent payment reminders and collections management.

Reducing Days Sales Outstanding

Strategies to minimize DSO in construction supply:

• Implement early payment discounts where feasible (2/10 Net 30 is a common B2B structure, though adoption in construction is limited)
• Charge late fees consistently to improve payment behavior
• Require partial upfront payments for large orders
• Use milestone billing for extended projects
• Maintain regular communication with accounts payable contacts at each customer

Credit Risk and Default Protection for Net 90 Invoices

Extended payment terms increase credit risk. Net 90 in particular requires proactive risk management because the exposure window is long and the dollar amounts in construction are often large.

Mitigating Payment Default Risk

Key risk mitigation approaches:

• Credit insurance: Protects against customer insolvency or non-payment
• Mechanic's liens: All U.S. states and D.C. provide mechanic's lien rights, though deadlines, notice requirements, and scope vary by jurisdiction
• Personal guarantees: Additional security for smaller contractor businesses
• Non-recourse financing: A third party assumes payment risk for approved invoices. If an approved buyer defaults, you keep the advance. Resolve offers a non-recourse financing alternative to factoring with up to 100% advance on approved invoices
• Regular credit reassessment: Quarterly review of customer financial health, especially for accounts on Net 90

Resolve's agentic collections for overdue invoices automates follow-up across email, SMS, and voice calls without requiring manual intervention from your team.

When to Require Deposits

Deposits should be required for:

• New customers without established payment history
• Orders exceeding established credit limits
• Custom or non-returnable materials
• Projects with known financial or timeline risks
• Customers with recent payment delays or financial difficulties

Digital Payment Solutions for Construction Material Suppliers

Technology solutions can significantly streamline payment processes and improve cash flow management.

Accepting Multiple Payment Methods

A comprehensive payment portal should accept:

• ACH transfers: Low-cost, reliable electronic payments
• Wire transfers: For large, time-sensitive payments
• Credit cards: Convenient but higher fee option (if surcharging, comply with card network rules and applicable state laws regarding caps and disclosures)
• Checks: Still common in construction despite digital alternatives

Resolve's B2B payments platform provides a branded portal accepting ACH, credit card, wire, or check with QuickBooks auto-bookkeeping, ensuring all transactions are automatically recorded and reconciled.

Integration with Accounting Software

Essential integration capabilities include automatic invoice creation and synchronization, real-time payment recording and reconciliation, customer credit limit tracking and alerts, and financial reporting for cash flow forecasting.

Scaling Your Construction Supply Business with Net Terms

Strategic use of net terms drives significant business growth when implemented with the right infrastructure behind it.

Increasing Order Sizes

Net terms enable customers to purchase more than they could with immediate payment requirements. Businesses offering net terms win more business than those requiring upfront payment because they can serve clients with cash flow constraints, using trade credit as a competitive advantage.

Expanding Customer Base

Net terms open opportunities with large commercial contractors on extended payment cycles, government and institutional projects requiring specific terms, new businesses building their credit and cash flow, seasonal businesses with cyclical revenue patterns, and growth-stage companies with strong potential but limited working capital.

Resolve's net terms for ecommerce solution provides buy now pay later options that can increase sales volume and customer retention with instant approvals, enabling suppliers to safely extend credit to more customers online and offline.

Compliance and Legal Considerations for Payment Terms

Proper legal structure protects both suppliers and customers in net terms arrangements.

Creating Enforceable Terms

Essential elements for enforceable payment terms:

• Written agreements: Clear terms specified in contracts or terms of sale
• Specific due dates: Exact payment deadlines rather than vague timeframes
• Late fee structures: Clearly defined penalties for overdue payments
• Interest charges: Legal rates for extended non-payment periods
• Dispute resolution: Process for handling quality or delivery disputes

State-Specific Requirements

Construction payment terms are subject to various state regulations:

• Mechanic's lien rights: Vary significantly by state in terms of filing requirements and timeframes
• Interest rate limits: Maximum allowable interest on overdue accounts
• Prompt payment laws: Some states mandate specific payment timeframes for public projects
• Licensing requirements: Business licenses and contractor registration requirements
• UCC filing requirements: For secured transactions and credit arrangements

Frequently Asked Questions

What does Net 90 mean on an invoice?

Net 90 means the buyer has 90 days from the invoice date to pay the full amount owed. It is the longest standard payment term in B2B commerce and is common in construction supply for large commercial and government projects.

Is Net 90 normal in construction?

Yes. Net 90 is standard on large commercial construction projects and government contracts. For materials suppliers, it creates significant cash flow pressure because you deliver materials upfront but wait 90 days for payment.

How do I calculate when a Net 90 invoice is due?

Add 90 calendar days to the invoice date. If you invoice on August 1, payment is due October 30. Check your contract terms to confirm whether weekends or holidays affect the due date, as some agreements specify business days rather than calendar days.

What's the difference between Net 90 and Pay-When-Paid?

Net 90 sets a fixed deadline: payment is due 90 days from the invoice date regardless of when the general contractor gets paid. Pay-when-paid ties your payment to when the GC receives funds from the project owner, which can push your payment well beyond 90 days. Enforceability of pay-when-paid clauses varies by state.

What's the difference between Net 30, Net 60, and Net 90 payment terms?

Net 30, Net 60, and Net 90 refer to the number of days a buyer has to pay after the invoice date. Net 30 is standard for smaller B2B orders; Net 60 is common for mid-size projects; Net 90 is used on large commercial or government construction projects. In construction specifically, payment terms are often tied to project milestones rather than a fixed invoice date, which can push effective payment timelines even longer.

Can I charge interest on overdue Net 90 invoices?

Yes, in most cases, provided your contract or terms of sale specify the interest rate and it complies with your state's maximum allowable rate. Document the rate clearly in writing before extending credit. Consistent enforcement of late fees and interest charges significantly improves payment behavior over time.

What happens if a contractor doesn't pay within net terms?

Follow a systematic collections process: reminder communications, formal demand letters, late fee application, and potentially legal action or mechanic's lien filing. Resolve's agentic collections for overdue invoices automates this sequence across email, SMS, and voice without manual effort from your team.

How do construction suppliers survive Net 90 payment cycles?

The most effective approach is invoice financing. Resolve advances up to 100% of each approved invoice within 24 hours on a non-recourse basis, meaning if an approved buyer defaults, you keep the advance. Your customer pays on Net 90. Your cash flow operates on a 1-day cycle. Resolve's non-recourse financing alternative to factoring eliminates the cash flow gap without adding debt or dilution.

How do construction suppliers qualify customers for net terms?

Conduct credit assessments including business credit checks, trade references, bank references, financial statements, and verification of licenses and insurance. Resolve provides business credit checks with results typically within 24 hours, giving your sales team fast answers without manual research.

Can small construction material suppliers offer net payment terms?

Yes, through proper risk management: start with shorter terms (Net 15 or Net 30), require deposits for large orders, set conservative credit limits, and use non-recourse financing that advances payment upfront while assuming credit risk. Resolve's platform is used by suppliers of all sizes, not just enterprise distributors.

This post is to be used for informational purposes only and does not constitute formal legal, business, or tax advice. Each person should consult his or her own attorney, business advisor, or tax advisor with respect to matters referenced in this post. Resolve assumes no liability for actions taken in reliance upon the information contained herein.