Best AR Collections Software in 2026
The top accounts receivable collections automation tools — compared on dunning automation, customer payment portals, DSO impact, and accounting integrations.
Last updated: 2026-05-26
Quick verdict
For SMBs under $50M in receivables, Gaviti (G2 4.5/5) delivers the best collections automation at an accessible price point. For mid-market companies needing payment network scale, Billtrust (G2 4.4/5) is the step up. For enterprise-level AI cash application, HighRadius (G2 4.3/5). For mid-market with AI payment prediction, Quadient AR / YayPay (G2 4.5/5) sits between Gaviti and Billtrust.
Why AR collections software reduces DSO
The biggest driver of extended DSO is not non-payment — it is delayed outreach. Most businesses using manual collections are 10–15 days slower in their first follow-up than automated systems. That delay compounds: customers who receive a reminder 5 days after due date pay faster than customers contacted 20 days after.
AR collections software automates the reminder cadence, ensuring every overdue invoice triggers a personalised email at the right time — without the AR team manually tracking who to contact. Teams report that the first 30 days after implementing automated collections recovers a significant portion of the oldest outstanding invoices simply because consistent follow-up was not happening before.
AR collections software comparison
| Tool | Best for | Starting price | G2 score | Key strength |
|---|---|---|---|---|
| Gaviti | SMB, $1M–$50M receivables | ~$500/mo | 4.5/5 (170 reviews) | Self-service payment portal |
| Billtrust | Mid-market, $20M–$500M+ | ~$2,500/mo | 4.4/5 (503 reviews) | Business Payments Network |
| HighRadius | Enterprise, $100M+ receivables | Custom | 4.3/5 (210 reviews) | AI cash application |
| Quadient AR (YayPay) | Mid-market, $5M–$100M | Custom | 4.5/5 (115 reviews) | AI payment prediction |
| Esker | Mid-enterprise, AP+AR | Custom | 4.5/5 (28 reviews)* | AP + AR unified platform |
*Esker's G2 review count is small (28 reviews) — scores may shift as more reviewers submit. Treat the rating as directional rather than statistically stable.
Key features to evaluate
Dunning sequence automation: Can you create different reminder sequences per customer segment? Strategic accounts need gentler, later reminders than transactional customers. The ability to segment by customer tier, invoice amount, or payment history is a meaningful capability difference between platforms.
Customer payment portal: A self-service portal where customers can view invoices, dispute charges, and pay online significantly reduces inbound "how do I pay?" calls. Gaviti's portal is the strongest at the SMB price point. Billtrust's Business Payments Network is the most powerful at enterprise scale.
Cash application: For high-volume B2B companies with complex remittance patterns, AI-powered cash application (automatically matching payments to invoices) is the primary ROI driver. This is where HighRadius and Billtrust differentiate from Gaviti.
Dispute management: Can customers raise disputes through the platform? Can your AR team track and resolve disputes without leaving the tool? Dispute management is often an afterthought in SMB AR tools but a core requirement at mid-market scale.
What DSO improvement to expect
Based on vendor-reported outcomes and verified user data: businesses transitioning from manual collections to automated dunning typically see DSO reduce by 5–15 days within 90 days of implementation. The improvement is most pronounced for businesses that had inconsistent outreach before.
The caveat: AR collections software does not fix structural DSO problems caused by billing errors, disputed contracts, or customers with genuine financial difficulties. Resolve dispute root causes alongside implementing collections automation — otherwise automated reminders to disputed accounts generate conflict rather than cash.