Introducing · Pay-by-Invoice by PartsBase

Net-30 across hundreds of aviation suppliers. One application.

Stop negotiating credit vendor by vendor. PartStore Pay-by-Invoice, powered by PartsBase, unlocks 30-day terms across the marketplace with a single approval — one application, one invoice, one AP workflow.

Suppliers 200+
Days to pay 30
Buyer fees $0
See how it works ↓
Limited to the first 50 ↓
Join the waitlist · ~2 minutes

Reserve your spot.

Joining the waitlist won’t run a credit check. When Pay-by-Invoice opens for your account, we’ll be in touch to start your credit application. See our Buyer User Terms and Privacy Policy.

The shift

Aviation procurement was never built for a marketplace. Until now.

For decades, getting terms in aviation meant a separate credit negotiation with every supplier — repeated for each vendor and every limit increase. PartsBase collapses that into a single decision that travels with you.

The old way

Credit, one vendor at a time.

Every supplier wants its own credit app, underwriting, and approval cycle — and teams burn weeks just to unlock terms on one new vendor.

  • Separate credit application per supplier
  • 2–4 weeks of underwriting, per vendor
  • AOG buys often forced to prepay
  • Multiple invoices, due dates, AP touchpoints
  • Limits negotiated individually, not portable
The PartsBase way

One line. The entire network.

Apply and get approved once. Every Pay-by-Invoice-enabled seller on PartStore then accepts your terms automatically at checkout — no further setup.

  • One unified credit application
  • Most decisions in 2–3 business days
  • AOG-ready: order now, settle in 30
  • One PartsBase invoice, regardless of seller count
  • Portable line that grows with your history
30days

Net-30 terms from the day the part ships — the standard procurement timeline, now across an entire marketplace.

1app

One credit application unlocks every Pay-by-Invoice-enabled seller on PartStore. No re-applying per vendor.

0fees

Zero buyer-side fees. No financing charge, no platform fee, no interest if paid within terms. The seller covers the cost.

2–3days

Underwriting turnaround for most commercial credit decisions. Founding-cohort applications get priority review.

How it works

From checkout to settled invoice, in 31 days.

Once approved, Pay-by-Invoice appears at PartStore checkout. Select it and place the order — PartsBase advances funds to the seller, you receive the part, and the Net-30 clock starts.

01
Day 0 · Order

Select Pay-by-Invoice

At checkout, choose Pay-by-Invoice. Approved instantly against your credit line. No external approval workflow.

02
Day 0–1 · Ship

Part ships with docs

Seller fulfills the order with FAA 8130-3, trace, and condition documentation per the listing. PartsBase wires the seller.

03
Day 1–30 · Use

Install. Operate. Invoice.

The part is in service. You have 30 days to bill your customer, recognize revenue, and route the AP entry on your normal cycle.

04
Day 30 · Settle

Pay PartsBase directly

One invoice from PartsBase — no matter how many sellers you bought from. ACH, wire, or check. Cycle closes.

What you get

Built for the realities of aviation procurement.

For operators, MROs, distributors, and brokers, cash timing is a strategic advantage. Pay-by-Invoice puts it back in your hands without asking your AP team to learn a new system.

AOG-ready cash flow

When an aircraft is grounded, parts can't wait on a wire. Order what you need now and settle once it's earning revenue.

One invoice, many sellers

Buy from 1 seller or 50 in a cycle. PartsBase consolidates it into one statement — your AP team makes one payment, not fifty.

Portable credit line

Your approved limit travels across the whole marketplace. As new sellers join PartStore, your terms apply to them automatically.

Procurement-team friendly

Net-30 is the language your AP team already speaks — standard terms, standard ACH/wire/check, standard reconciliation. No retraining.

Zero buyer-side fees

No financing charges, platform fees, or interest within terms. The seller covers the transaction fee — you pay the price you saw at checkout.

Grows with your volume

Credit lines scale with your purchasing history — the more you transact with PartsBase, the more headroom you unlock.

Side by side

How the old workflow stacks up against PartsBase.

Workflow
Traditional vendor terms
PartStore + PartsBase
Credit application
One per supplier, per limit
One application, network-wide
Underwriting timeline
2–4 weeks per vendor
2–3 business days
AOG response
Often prepay or wire
Order now, settle in 30
Invoice management
Multiple vendors, multiple due dates
One consolidated PartsBase invoice
Buyer fees
Variable; some vendors charge financing
$0 — fully seller-funded
Adding new suppliers
Re-apply each time
Automatic — applies network-wide
Industry fit
Generic B2B terms
Aviation-native: FAA 8130-3, trace, NSN, ATA

Ready to buy on Net-30 across PartStore?

One approval unlocks 30-day terms across 200+ sellers — at zero cost to you.

Join the waitlist →
Founding cohort · Limited to the first 50

Be among the first 50 underwritten.

Founding-cohort buyers get priority review, locked-in approval terms, and a direct line to the PartsBase product team as the program scales across PartStore.

01

Priority underwriting

Founding applications move to the front of the queue. Most decisions returned in 2–3 business days.

02

Locked-in terms

Net-30 terms are permanently grandfathered for founding-cohort buyers, even as program defaults change.

03

Network-day-one access

As sellers enable Pay-by-Invoice, your line activates with them automatically — buyer-side from day one.

04

Shape the program

Quarterly founder roundtables with PartsBase leadership. Your AP workflow feedback ships in the product.

Common questions

Everything procurement and finance will ask.

Is there a fee to buyers?
No. Buyers pay zero fees — no financing charge, platform fee, or interest within terms. The seller pays a 3.2% transaction fee to PartsBase, covering underwriting, funding, and collection risk. Late payment after Net-30 may trigger the standard collections terms in the Buyer Program Agreement.
How does credit approval work?
PartsBase runs a standard commercial credit underwriting process using business credit bureaus and trade references, powered by our B2B payments partner Balance, who specializes in financing the world’s largest B2B marketplaces. There’s no hard pull on personal credit. Most decisions return in 2–3 business days, and your line is usable immediately across every Pay-by-Invoice-enabled seller.
What size credit line will I be approved for?
Your initial line reflects your company's commercial credit profile and purchasing volume. As you build history with PartsBase, it scales automatically — most buyers see an increase within the first 90 days.
Can I use this with my existing PartStore / PartsBase account?
Yes. Your waitlist application links to your existing PartsBase ID. Once approved, Pay-by-Invoice appears in your normal checkout — no separate login or parallel account.
Which sellers accept Pay-by-Invoice?
Hundreds of PartStore sellers have already enabled Pay-by-Invoice, with more added continuously. Eligible listings show a Pay-by-Invoice indicator at the product and checkout level, and founding-cohort buyers get visibility into network growth as it happens.
What happens if I'm late on payment?
Standard B2B collections apply, pursued by PartsBase directly with you — never with the original seller. Late fees and any credit-line implications are set out in the Buyer Program Agreement provided at approval. We work with buyers in good standing on payment plans where appropriate.
Is this available outside the U.S.?
The initial cohort is open to U.S.-domiciled buyers. International expansion (Canada, EU, UK) is planned for 2027. Non-U.S. buyers can still join the waitlist to be notified when their region opens.
How does this compare to a factoring or trade-finance line?
Traditional factoring typically charges 1–3% per 30 days plus origination and minimum-volume fees, and requires managing a separate financing relationship. PartsBase is built into PartStore checkout: no separate lender, no buyer-side cost, no minimums — a portable Net-30 line that follows you across every approved seller.

Buy like the market leader you already are.

Join the founding cohort of PartStore buyers approved for Net-30 terms across the entire seller network. One application. Hundreds of suppliers. Zero buyer fees.

Join the waitlist →

Pay-by-Invoice infrastructure powered by Balance.

Document PBS-BUY-2026.05 · Effective May 2026. PartStore is powered by PartsBase. Pay-by-Invoice terms governed by the active PartsBase Buyer User Terms. Credit* subject to underwriting and approval. Credit lines, limits, and terms vary by buyer and may be adjusted based on transaction history. Founding-cohort terms are subject to the specific provisions disclosed at the time of approval. All marketplace transactions remain subject to the active PartsBase Marketplace Terms of Service.

*Buyer credit is extended and serviced by Balance Technologies, Inc. on behalf of PartsBase.

Buyer User Terms · Privacy Policy