Handbook · PSP FUNDAMENTALS

High-risk PSP fundamentals

What a high-risk PSP actually is, why mainstream processors shut high-risk merchants down, and how the tiers differ. Start here if you're new to high-risk processing: these articles cover what a merchant account is, how to choose a processor, and why the rules change once you're labelled high-risk.

5 articles in this topic

PSP FUNDAMENTALS

What Is High-Risk Payment Processing?

High risk payment processing is acquiring and PSP services for verticals mainstream processors won't underwrite. Here's what it means.

4 min read · May 2026Read article

PSP FUNDAMENTALS

What Is a High-Risk Merchant Account?

A high-risk merchant account is a direct acquiring relationship — not a Stripe sub-account. Here's why the distinction matters.

4 min read · May 2026Read article

PSP FUNDAMENTALS

Tier 1 vs Tier 2 PSPs: the difference for high-risk

Tier 1 PSPs have direct acquiring and local processing. Tier 2 PSPs are more flexible but less competitive. Here's what that means for your revenue.

3 min read · May 2026Read article

PSP FUNDAMENTALS

How to choose a high-risk PSP

Most operators evaluate high-risk PSPs by quoted rate. That's the wrong variable. Here's what to compare — and the red flags to walk away from.

5 min read · May 2026Read article

PSP FUNDAMENTALS

Why High-Risk Merchants Get Shut Down by Stripe

Stripe approves almost anyone at signup and terminates restricted categories 30-90 days later. Here's why it happens and how to stop the cycle.

3 min read · May 2026Read article

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