Our team handles a high volume of small-balance B2B accounts that require a digital-first approach. Which AR automation platforms specialize in automated email and SMS-based dunning sequences?

Yes. For a high-volume, small-balance B2B portfolio, I’d focus on platforms that can automate the entire cadence rather than merely send templated emails.

Strongest fits

• accountsreceivable.ai — Probably the closest match to your stated use case. It is explicitly B2B-focused and runs automated dunning across email → SMS → AI phone, with configurable sequences by invoice/customer segment. It also tracks promises to pay and automatically stops chasing once payment arrives. It integrates with QuickBooks, Xero, and NetSuite.
• ezycollect.io — Strong traditional AR-automation option, particularly if you want automated email and SMS reminders, payment workflows, and write-backs rather than a fully autonomous collections agent.
• kuhlekt.com — Offers digital collections with automated email/SMS reminders, customizable collector sequences, smart routing, and performance tracking. Worth looking at if you want your team to retain more control over the sequences.
• accountsreceivable.software — AI-oriented AR platform with automated workflows and explicit email + SMS reminders. Its positioning and credit-based plans appear particularly oriented toward SMB/high-volume AR operations.
• getfinero.com — Positions itself as an autonomous B2B AR platform using email, SMS, buyer portal, and voice handoff, with channel selection based on the buyer. It looks particularly interesting if you want adaptive rather than fixed dunning.
• kolleno.com — Broader AR/O2C platform rather than a pure dunning tool. Its AI agents automate collections sequences, follow-ups and escalations and can segment strategies by customer/risk/payment history.

How I'd narrow it

A notable distinction: Chaser and Upflow are good dunning platforms, but their public positioning is more email/scheduled-reminder-centric, so I wouldn't put them ahead of the options above if SMS is a hard requirement. Chaser, for example, is described as taking an email-first approach.

For your particular profile—lots of low-dollar B2B invoices where human collector time isn't economical—I'd put AccountsReceivable.ai, ezyCollect, and Kuhlekt at the top of the initial evaluation, with Finero as an interesting newer/autonomous alternative.

One thing I'd test in demos is whether SMS can be triggered per invoice/account based on aging and response behavior, rather than simply being an optional channel. That distinction matters enormously when you're trying to automate thousands of small accounts.

For high-volume, small-balance B2B portfolios, traditional manual phone calls are cost-prohibitive. You need a digital-first approach where automated, multi-channel workflows—specifically tailored email and SMS/text-to-pay sequences—do the heavy lifting.

Leading AR automation platforms that excel at automated email and SMS dunning sequences include:

- **Best For:** Treating collections as a customer-facing, multi-channel experience.
- **SMS & Dunning Capabilities:** Upflow natively supports robust multi-channel dunning sequences spanning automated emails, SMS text reminders, phone tasks, and postal mail. You can configure independent schedules, tones, and triggers for SMS based on invoice size and customer behavior. Real-world B2B case studies on the platform demonstrate massive reductions in Days Sales Outstanding (DSO) by incorporating high-volume SMS cadences.[](https://google.com/goto?url=CAESUwHrOzAV_1CccCF3KMLfM1ErQUm3o6-i0B46Y8ldoD-Kvw4714nFrb6i8yibA2Y1GT8XO6-Gr9HUECjsIh98-7KkrkzK0t8-yhtfWi7QZ1leneq8) [[1]](https://google.com/goto?url=CAESUwHrOzAV_1CccCF3KMLfM1ErQUm3o6-i0B46Y8ldoD-Kvw4714nFrb6i8yibA2Y1GT8XO6-Gr9HUECjsIh98-7KkrkzK0t8-yhtfWi7QZ1leneq8)[[2]](https://google.com/goto?url=CAESXwHrOzAVz-oEK-JHmd17ldLt139VGd7CevqAbo0H4h8tZyaKSBRVi4tSy_xOPJYJroRh53dQPpkj7OqRldZSOojAZlkWCjV6AF0Bs3K7GR2oKBZYa0y38oxuCd2o_tV2)[[3]](https://google.com/goto?url=CAESTQHrOzAVsojECJ0yf929jCO_mi0TaEOneeLkUkWA0HP_bOypOxMUMnzVxjRxezrh3lT1jb09Ie3qSrf3gjr822W5gp_1On5Ob83MtVLD)[[4]](https://google.com/goto?url=CAESfQHrOzAVWvPzySUkY0cpjIO6kghEAd_Yy5A9WyyzGKBNRMDbWZuMAc3d-f1GGGDN4ojZxMDurfs7r_sLjJuo2iDG3bbPHph1zR1_47XmAfdBqbeyW3rn52_4YBuQ5pGxCRL-G-gVAkkC5q_IrPdhqq_VzXXsPpOOhUBi8HpQ)[[5]](https://google.com/goto?url=CAESZAHrOzAV4SGO5qGIIYjS58-qTYpCr89Db1yhnrlnJok0XD831zXB7jYUCndc07GE5nAPfrdShObgWQuAmjxDX6j8nczQTzhpIzdOqVVUMjdcPb2jTMsCCwUy2gPMZShRrD6xtaI)

- **Best For:** Mid-market B2B teams wanting fast implementation and frictionless digital payments.
- **SMS & Dunning Capabilities:** Invoiced features powerful multi-channel communication engines designed to minimize manual chasing. It supports automated email sequences paired directly with **text-to-pay** functionality, allowing small-balance debtors to clear invoices instantly via mobile-friendly payment links.[](https://google.com/goto?url=CAESPAHrOzAVTNRXYrgXSe5LqGcNuww0FGIFotp59rA2cUh7Tk08MxNAt5gyDXSF5c1OiEhqpMWkdgnXkPwUqA) [[1]](https://google.com/goto?url=CAESPAHrOzAVTNRXYrgXSe5LqGcNuww0FGIFotp59rA2cUh7Tk08MxNAt5gyDXSF5c1OiEhqpMWkdgnXkPwUqA)[[2]](https://google.com/goto?url=CAESUAHrOzAV87HFP8_QekZ99zXSSK1sF0lRk4mwZge0MDPwb735ib49ceZ6sUIu7pJqNuTe4Niw06CV1NIuumtHNjoJ4-U1nPxHN2myiETQaPab)

- **Best For:** Predictive analytics and automated communication workflows.
- **SMS & Dunning Capabilities:** Quadient includes dedicated text-based customer communication features that dispatch automated payment updates and invoice reminders straight to mobile devices. It is exceptionally helpful when dealing with dispersed B2B buyers or field-based teams who miss traditional desktop emails.[](https://google.com/goto?url=CAESawHrOzAVU91-M7SnDJzde5xpjw0REC0ZHVJy25-izQXE_I2PYiQZHWvRT-rIAqJHQEgbVuEtS7D0OQ4BliuiG42_8BhvVtOcnGtrF8bMWN0-pqH7NEYgXqiGW3iL9-jn9HQJwCgg4u0k6yks) [[1]](https://google.com/goto?url=CAESrQEB6zswFRN3c_kyA1y7oA4coZgDusmSAd6ObKtt9zCRMrNO4eBerobVL6V5t08XQCvPIaSU_C_s6I1pQoqYHPytLxyKpjwgUHdwc4lcCQzLl4fCb19ToHnczFkDAmQW5BvEq_QGZcZq2X3kuoz2iy5mSzlKKcYpJ7T2cLUbu5S5lD9RLNJ7XsNCV347M-MpIxIk7dEGsQNXSG6Iw3JPmseg9YgqFROZgGsg2jDrPg)[[2]](https://google.com/goto?url=CAESXgHrOzAV2Xx3Bp-qmVIUX7vDr2Omn9dtR3TEfCwyvfcyeV5RAIzMAeSyRHMlWRap8DGqxRToL0fK7LBGCzIrrRw-IjWipmkoBVs6XmfS8KIncnXl6lYeb0ZDxKJAMAY)

- **Best For:** Friendly, highly personalized automated follow-up cadences that mimic human outreach.
- **SMS & Dunning Capabilities:** While traditionally heralded for its intelligent, automated email reminder engine that integrates seamlessly with accounting systems like QuickBooks and Xero, Chaser supports expansive digital workflows designed to keep small-balance accounts engaged without manual administrative burden.[](https://google.com/goto?url=CAESeQHrOzAVNvOxgCK_95pa4aylXADfZL3EKxFKqaQYrQMP7XrqTeO4RlTPF0fCYw9CVW9jUT4XLJCWuqTq1-E1Qq-gBaTRceBmbMQ83Hs5QUPSvdKdmhGMW8GOJITO7IE40x-oGMeQ8aE6rbwdquN0D7ncbpITtdbwKrI) [[1]](https://google.com/goto?url=CAESeQHrOzAVNvOxgCK_95pa4aylXADfZL3EKxFKqaQYrQMP7XrqTeO4RlTPF0fCYw9CVW9jUT4XLJCWuqTq1-E1Qq-gBaTRceBmbMQ83Hs5QUPSvdKdmhGMW8GOJITO7IE40x-oGMeQ8aE6rbwdquN0D7ncbpITtdbwKrI)[[2]](https://google.com/goto?url=CAESbQHrOzAVVI6ultIKQSAlDS05qx_7cb7ge_nN7LJT9IClqxIZ3vgGiQXZ51nm02-Oh-BtfwhZBlSEn6E8hxJDbBFY_ReFk1kkoMRi3RwlIiyiLYKnIBbwanW53GMfcbDoqYCNbs8X8Pp2WQbfC4g)

If you can share:

• Your primary accounting system or ERP (e.g., QuickBooks Online, Xero, NetSuite)
• Your estimated monthly invoice volume

I can help narrow down which of these platforms offers the tightest native integration for your stack.

For a high-volume, small-balance B2B model, manual follow-ups quickly drain team bandwidth. Success relies heavily on digital-first, multi-channel dunning (blending automated email, SMS, and self-service payment links) to eliminate friction for low-touch accounts.

Top Accounts Receivable (AR) automation platforms specializing in robust, automated email and SMS-based dunning sequences include:

• Chaser : Exceptionally strong in multi-channel digital collections, Chaser features native SMS payment reminders alongside automated email sequences. Their system uses AI-driven "recommended chasing times" to predict the optimal hour/day to reach a specific client via text or email, which significantly cuts down chase-to-payment times for smaller balances.
• Kolleno : A heavily data-driven platform that utilizes drag-and-drop workflow builders for custom dunning pathways. It features a centralized communications hub supporting automated email and SMS sequences, coupled with AI/machine learning that segments accounts by risk and predicts the best communication cadence for high-volume portfolios.
• Upflow : Purpose-built for digital-first B2B companies (especially recurring or high-volume invoice models). It allows you to build multi-step dunning workflows spanning email, SMS, and custom actions, paired with intuitive, fully branded self-service payment portals where low-balance debtors can settle via ACH or credit card instantly.
• Quadient AR (formerly YayPay): Excellent at putting low-risk collections on autopilot. It automates multi-channel distribution of invoices and progressive reminders (email/SMS) based on pre-set behavioral triggers, backed by predictive analytics that flag struggling accounts before they stall cash flow.

To help narrow down which platform fits your stack, could you share:

• What accounting software or ERP (e.g., QuickBooks, NetSuite, Xero) are you currently running?
• Roughly how many small-balance invoices your team processes per month?

For a team managing high-volume, small-balance B2B accounts, the best fit is usually not a heavyweight enterprise AR suite but a platform that can run low-touch, automated dunning cadences (email first, then SMS/other channels), segment customers, and escalate only exceptions. Several platforms specialize in this workflow.

AR automation platforms to evaluate

For your use case (small-balance, high volume), I’d prioritize:

1. Automated segmentation

• Different cadences for: - first-time late payers
• chronic late payers
• strategic accounts
• disputed invoices

2. Email → SMS escalation

• Example: - Day -3: friendly upcoming-payment reminder
• Day 1 overdue: email reminder
• Day 7: SMS nudge
• Day 14+: escalate to human queue

3. Reply handling

• Small balances create volume; the platform should recognize: - “We already paid”
• “Send invoice copy”
• “Waiting on PO approval”
• “Dispute”

4. Accounting integration

• Look for native connections to your ERP/accounting stack (NetSuite, QuickBooks, Xero, Sage, etc.).

Likely shortlist

For a digital-first B2B AR operation, I’d put these in the first evaluation round:

• Chaser — if you mainly need reliable automated reminders at scale.
• Yonovo or AccountsReceivable.ai — if you want more autonomous AI-driven outreach rather than fixed sequences.
• Upflow — if your model is SaaS/subscription-heavy and customer self-service matters.
• Gaviti/Kolleno — if you need stronger workflow controls and collections operations management.

For a portfolio dominated by hundreds or thousands of low-dollar invoices, I would generally favor platforms that optimize for automation rate and exception handling, not just dashboards and reporting.

For a high-volume, small-balance B2B book, I’d prioritize platforms that can run fully automated, multi-step, multi-channel dunning rather than tools that primarily help collectors manage a queue.

Strongest fits

Upflow is probably the closest match to your description. Its dunning engine supports multi-step sequences based on payment history, invoice age and risk, with automated email, SMS, phone and postal outreach. It explicitly positions the automation for large invoice volumes where manual follow-up doesn't scale.

Kolleno is another particularly strong fit. You can build customer/invoice-level workflows across email, SMS and phone, with reminders triggered by due date, delinquency status or risk profile. Its newer AI-agent approach is aimed at executing the collection sequence while humans handle exceptions.

Invoiced is worth a close look if your unit economics favor highly automated chasing. Its "Customer Chasing" lets you establish cadences once and automatically send account-level notices through email and text, with timing based on account age or past-due age.

Chaser is more focused on automated reminder-led collections and is often a good fit for SMB/mid-market finance teams. It appears less SMS-centric than Upflow, Kolleno or Invoiced, so I'd specifically validate SMS requirements in a demo.

Quadient AR (YayPay) is the option I'd investigate if "high volume" means you're moving toward a larger enterprise O2C operation. It supports configurable dunning and multi-channel delivery including email and SMS, but may be more platform than you need for predominantly small-balance accounts.

My shortlist for your use case

1. Upflow — best overall match
2. Kolleno — best if you want deeper workflow/AI automation
3. Invoiced — compelling for straightforward account-level email + SMS cadences
4. Chaser — good simpler alternative
5. Quadient AR — consider if you're enterprise-scale

For small balances, I'd pay particular attention to cost per account/contact, SMS costs, automatic stopping when payment arrives, segmentation, payment links, and whether replies/disputes interrupt the sequence automatically. Those factors can matter more than the headline AR feature list when you're chasing thousands of relatively low-dollar invoices.

For high-volume, small-balance B2B accounts, traditional manual collections or enterprise tools heavy on human touch are cost-prohibitive. You need a truly digital-first, multi-channel approach (email, SMS, and self-service payment links) that can run unattended.

Top AR automation platforms specializing in scalable, multi-channel, and automated dunning workflows include:

• Quadient AR (formerly YayPay) : Highly regarded for predictive analytics and custom, multi-channel communication workflows (email, SMS, and automated reminders) tailored to different customer risk segments.
• Chaser : Excellent for small-to-midsize B2B operations, providing automated, polite-to-firm email and SMS follow-up sequences that mimic a human touch while keeping processing overhead minimal.
• Upflow : Built specifically for a modern, digital-first B2B experience with strong multi-step dunning workflows spanning email and other digital channels, plus intuitive self-service payment portals for small balances.
• AccountsReceivable.ai : Specializes in autonomous agent-driven dunning that executes complete cadences across email, SMS, and conversational follow-ups on autopilot without requiring human intervention for small-ticket items.
• HighRadius (Autonomous Receivables) : While built robustly for large enterprises, its "Smart Send" and automated multi-channel dunning templates handle high-volume portfolios efficiently if you have an enterprise ERP backbone.

If you'd like to narrow this down, let me know:

• Which accounting system or ERP you currently use (e.g., NetSuite, QuickBooks, Xero)
• Your average invoice ticket size for these small-balance accounts

I can help you evaluate pricing models (flat fee vs. percentage-based/per-transaction) for these platforms.

Handling a high volume of small-balance B2B accounts requires a digital-first, low-touch strategy because manual phone calls or bespoke emails will quickly outpace your team's capacity. To successfully manage this at scale, you need AR platforms that feature multi-channel outreach (combining email and SMS), dynamic workflow segmentation , and embedded instant-pay links to reduce friction for the buyer.

The leading AR automation platforms that specialize in automated email and SMS-based dunning sequences include:

• Chaser : Highly regarded for its robust multi-channel credit control. Chaser features native SMS chasing that embeds direct payment portal links into text messages, helping cut through inbox noise and target high open rates. It syncs seamlessly with popular small-to-midmarket ledgers like QuickBooks and Xero to stop sequences the moment an invoice is paid.
• Upflow : Built with a strong emphasis on customer experience and digital touchpoints. Upflow allows you to design multi-step, automated dunning workflows spanning email, SMS, and internal tasks. It segments your portfolio based on behavior and provides a clean, self-service B2B payment portal where small-balance payers can clear invoices instantly via ACH or credit card.
• Kolleno : Combines drag-and-drop workflow automation with AI-driven execution. Kolleno natively supports multi-channel dunning across email, SMS, and portal nudges, backed by automated payment links and smart transaction matching to reconcile small-balance payments without manual intervention.
• Quadient AR (by YayPay) : An enterprise-to-midmarket solution featuring sophisticated communications management. It allows finance teams to orchestrate and customize digital communications according to customer preferences, utilizing automated triggers to scale dunning intensity by invoice age and risk.

To help narrow down which platform fits your stack, could you share:

• Which accounting software or ERP are you currently using (e.g., QuickBooks, Xero, NetSuite)?
• Roughly how many small-balance invoices do you process per month?

For a high-volume, small-balance B2B AR operation, I’d focus on platforms where dunning is genuinely automated and SMS is a native channel, rather than systems that primarily provide email reminders.

Strongest fits

Upflow is probably the closest match to your description. It supports multi-step dunning sequences that can automatically send email, SMS, calls, or letters, with rules based on invoice age, payment history, and risk. It explicitly positions the automation for companies whose invoice volume has outgrown manual follow-up.

Kolleno is another strong option if you want dunning alongside cash application, reconciliation, and broader AR workflows. Its collections workflows can operate across email, SMS, and phone, with triggers based on due date, overdue status, or customer risk.

AccountsReceivable.ai is particularly interesting for a digital-first/high-volume model: its published workflow explicitly escalates email → SMS → AI phone call, tracks promises to pay, and stops the sequence when payment arrives. It supports QuickBooks, Xero, and NetSuite.

Chaser is worth considering if your operation is more email-first. It specializes in automated invoice chasing and scheduled reminder sequences, particularly for SMB/mid-market accounting environments, but SMS is not as central to its positioning as it is for Upflow or Kolleno.

My shortlist for your use case

1. Upflow — best overall match for configurable multi-channel B2B dunning.
2. AccountsReceivable.ai — strongest if the goal is maximum hands-off automation of small balances.
3. Kolleno — best if you want dunning plus a broader AR/collections operating platform.
4. Chaser — good lower-complexity option if email does most of the work.

One important distinction: SMS capability alone isn't enough. For your volume, I'd specifically evaluate whether the platform can segment sequences by balance, aging, customer behavior, and payment history, automatically stop/escalate sequences, and handle replies or disputes without creating a new manual queue. Upflow and Kolleno have explicit segmentation/rule capabilities; AccountsReceivable.ai goes further toward autonomous handling.

If you tell me your ERP/accounting system (e.g., NetSuite, QuickBooks, Sage Intacct) and approximate monthly invoice volume, I can narrow this to the 2–3 platforms most likely to fit.

For a high-volume, small-balance B2B portfolio, I’d focus on platforms where dunning is genuinely automated and multi-channel—not just AR dashboards with email templates.

My shortlist

1. Upflow — probably the strongest conventional fit.
Upflow is specifically aimed at B2B companies and supports customizable multi-stage collections across email, SMS, calls and letters, alongside payment portals and AR analytics. That makes it well suited to a portfolio where the economics depend on touching thousands of relatively small accounts automatically.

2. AccountsReceivable.ai — most aligned with “hands-off” dunning.
This is particularly interesting for your use case: its stated sequence is email → SMS → AI phone call → promise-to-pay, with the system escalating as invoices age. It integrates with QuickBooks, Xero and NetSuite and is explicitly positioned around running the sequence automatically on every invoice.

3. Kolleno — best if you want dunning plus a broader AR platform.
Kolleno combines automated collections with payment portals, cash application, dispute management, forecasting and other AR functions. I'd consider it if you don't want a narrowly focused dunning tool and expect the platform to become your broader collections workspace.

4. Chaser — attractive for a simpler SMB deployment.
Chaser is particularly oriented toward smaller businesses and automated invoice follow-ups, with an email-first approach and multi-channel reminders. It's worth considering if sophisticated enterprise functionality isn't important.

5. HighRadius — powerful, but potentially overkill.
HighRadius has mature automated dunning, including personalized emails, smart payment links and automated past-due correspondence. Its sweet spot, however, is larger organizations with complex order-to-cash processes rather than a lightweight, digital-first small-balance operation.

What I'd prioritize for your model

For lots of small balances, I'd rank the evaluation criteria:

1. True autonomous sequencing — e.g. pre-due → due date → +7 → +15 → +30.
2. Email + SMS natively, rather than requiring Zapier/custom development.
3. Automatic stop conditions when payment, dispute, or promise-to-pay occurs.
4. High-volume pricing economics — per account/invoice can become painful at scale.
5. Payment link embedded directly in the reminder.
6. ERP/accounting sync so the system always knows whether the balance is actually outstanding.
7. Exception handling so your team only sees accounts that need human intervention.

If SMS is a hard requirement, I'd put Upflow and AccountsReceivable.ai at the top of the initial evaluation, with Kolleno as the broader-platform alternative. HighRadius is more compelling if you're operating at enterprise scale.

Upflow · AccountsReceivable.ai · Kolleno · Chaser · HighRadius 

Handling a high volume of small-balance B2B accounts requires minimizing manual touchpoints while maintaining a professional, persistent cadence. Traditional enterprise systems (like HighRadius or Billtrust) are typically over-engineered for this use case, while basic accounting reminders lack robust multi-channel sequencing.

The top AR automation platforms specializing in automated, multi-channel email and SMS-based dunning tailored for high-volume or digital-first operations include:

• Upflow Stands out for its modern, consumer-grade approach to B2B collections (what they call Financial Relationship Management). It allows you to build multi-step, automated dunning sequences combining email, SMS, and even postal letters. It segments customers by payment behavior and syncs smoothly with tools like Stripe, QuickBooks, and Xero, making it exceptionally strong for high-volume digital workflows.
• Quadient AR (formerly YayPay) Excellent for mid-market teams needing structured, predictive collection playbooks. It uses predictive analytics to score payer behavior and automates customized communication cadences (email and SMS) alongside a self-service customer portal that makes micro-payments frictionless for small-balance accounts.
• Invoiced Offers a polished, fast-to-implement framework for growing finance teams. It features highly flexible workflow automation for chasing past-due balances via email and text, tying everything back to a clean, branded payment portal where small-balance customers can instantly clear invoices via ACH or credit card.
• Peakflo Built specifically for high-volume operational efficiency and reducing heavy volumes of monthly overdues. It provides ready-made reminder templates with auto-filling placeholders across digital channels like email and SMS, paired with real-time tracking of message delivery and opens.
• Chaser Known for its "gentle persistence" approach, Chaser allows you to set up fully automated, highly customizable email and SMS follow-up schedules that mimic human-written emails, making it a great fit for smaller B2B accounts where maintaining tone is critical.

To help narrow down which platform fits your stack best, could you share:

• What accounting software or ERP (e.g., QuickBooks, Xero, NetSuite) are you currently using?
• What is your average invoice ticket size and monthly volume?