For most enterprise AP teams, the first payment to a new international supplier is the slowest payment they will ever make to that supplier. The compliance and verification steps required before the first wire can go out take days or weeks even when everyone involved is responsive and nothing goes wrong.
Some teams have made meaningful progress on this problem. Not by skipping compliance steps or creating informal workarounds that will fail an audit, but by redesigning which steps happen when and who is responsible for running them. This article covers three approaches we have observed working in practice.
Approach One: Pre-Authorize Tax Form Collection Before the Engagement Starts
The most common timeline failure in first-time supplier payments is a bottleneck that occurs after the work is done: the supplier delivers their invoice, the AP team requests tax documentation, and the exchange of forms and corrections adds 10 to 14 days to the payment timeline.
Teams that have reduced this delay most effectively moved the tax form collection step to the beginning of the engagement, before the work starts, as part of the contracting process. When an overseas contractor is onboarded for a project, they are asked to complete the appropriate W-8 form as a contracting prerequisite rather than as a post-invoice AP action.
This approach requires coordination between the procurement or legal team that handles contracting and the AP team that handles compliance documentation. It also requires contract templates that include the tax form request as a standard requirement rather than an afterthought. Neither change is technically complex, but both require process discipline to maintain consistently.
The compliance benefit is also real: a tax form collected at the start of the engagement is current and confirmed at the time of payment. A form collected in a rush after the invoice arrives is more likely to contain errors because the supplier has less time to complete it carefully.
Approach Two: Separate the Compliance Queue from the Vendor Record Queue
At most organizations, the compliance review for a new vendor, KYB check, sanctions screening, tax form review, is bundled into the vendor record creation process. The compliance steps cannot start until someone has submitted a new vendor request. The vendor record cannot be created until compliance has approved the request. The payment cannot be scheduled until the vendor record exists.
Teams that have meaningfully reduced time-to-pay have often done so by decoupling the compliance review from the record creation workflow, particularly for one-off international payments. The compliance review, identity verification and sanctions screening, happens as soon as the supplier information is available, which may be before a formal new vendor request has been submitted. The tax form review happens on the completed form, not in a queue waiting for the record request to be filed.
The practical effect is that compliance review time and record creation time run partially in parallel rather than fully in sequence. At the end of the process, the compliance review is complete when the record is ready to be created, rather than the record creation waiting on a compliance queue that has not yet started.
This is a workflow redesign, not a compliance shortcut. All the same steps happen. The sequence is different, and the calendar time collapses because waiting is reduced.
Approach Three: Use a Payment Intermediary for One-Off Foreign Payments
For suppliers who will be paid exactly once and who have no existing relationship with the organization, some teams have moved to using a third-party payment intermediary that handles the compliance layer directly. The AP team submits a payment request, the intermediary runs KYB verification, collects the appropriate W-8 form from the supplier, assesses withholding, screens against sanctions lists, and dispatches the payment. The AP team receives a structured record for ERP import.
This approach eliminates the new vendor record creation entirely for one-off payments. The compliance steps all run, but they run as part of the payment processing rather than as a prerequisite to record creation. The result is payment within hours rather than weeks, with full compliance documentation included in the payment record.
The concern AP teams sometimes raise about this approach is audit trail quality: if the vendor record was never created in the ERP, how does the organization demonstrate compliance? The answer is that the payment intermediary produces a compliance record that contains the KYB outcome, the tax form on file, the withholding calculation, and the sanctions screening result, all tied to the specific payment. This is often more complete documentation than what an internal onboarding process produces, because it is systematically generated rather than assembled from scattered emails and manual entries.
What None of These Approaches Do
All three approaches described here reduce time-to-pay by redesigning the sequence of compliance steps, not by eliminating them. The KYB check still happens. The tax form is still collected. Sanctions screening still runs at payment time. The withholding calculation is still applied.
We want to be clear about this because we occasionally hear about organizations that have "accelerated" supplier payments by deferring compliance steps to a later reconciliation review. That is not acceleration. It is a compliance gap being moved to a later date where it will be harder to address. If the payment has already gone out and the supplier has already been paid, a retroactive sanctions screening failure does not have a good resolution path.
The right goal is compliance at payment time with less calendar delay. That is achievable through process redesign. It is not achievable through compliance deferral, regardless of how it is framed internally.
Choosing an Approach for Your Team
Which of these approaches makes sense for a given organization depends on the volume of one-off international payments, the current workflow architecture, and the internal capacity for process change.
Pre-authorizing tax form collection at contracting time is relatively low-effort to implement and provides immediate benefit with no new vendors or systems involved. It works best when procurement and AP have enough coordination that contracting templates can be updated consistently.
Decoupling compliance review from record creation is more impactful but requires workflow redesign and potentially ERP configuration changes to support parallel processes. It is more appropriate for teams with high enough volume of new international vendors to justify the implementation investment.
Using a payment intermediary for one-off international payments is the most direct path to same-day payment capability, and it works regardless of ERP configuration or internal workflow constraints. The tradeoff is a per-payment cost and the requirement to integrate the intermediary's payment records into the organization's accounting and audit trail.
All three approaches represent legitimate operational improvements. The worst approach is the status quo: routing every one-off international payment through a six-week vendor onboarding queue because no one has designed a better path.