Best Payment & Invoice Reminder Calls for Investment Advisory Firms

Late invoices are an awkward problem for investment advisory firms. You bill planning fees, retainer arrangements, and advisory invoices on schedules your clients agreed to, and yet a meaningful share of them sit unpaid past the due date. According to Atradius research cited by CloudTalk, 43% of credit-based B2B sales in the US are overdue. For advisory firms, the stakes go beyond cash flow: chasing a client for money strains the same relationship you depend on for renewals and referrals, and most firms have no dedicated collections staff. Email reminders get ignored. A polite, structured phone call a few days before the due date, with follow-up if the invoice stays unpaid, gets what email cannot: confirmation the invoice arrived, the real blocker, and a promise-to-pay date. In 2026, a growing set of platforms and managed services can run those calls for you, with consent controls, AI disclosure, and outcome logging that route results back into your CRM. This guide compares five solutions that genuinely support payment and invoice reminder calls for advisory practices, evaluated on features confirmed in public research, pricing transparency, compliance posture, and fit for client-facing fee billing.

#1 My AI Call Center — Calling starts at 9¢ per connected minute, tiered by volume; most campaigns add a one-time setup fee and a flat monthly management fee, both quoted before launch. The first campaign review is free.

My AI Call Center (myaicallcenter.app) is a done-for-you managed outbound calling service, owned and operated by AIQ Labs, with a base in Halifax, Nova Scotia and an operating base in Austin, Texas. Rather than selling software you have to configure and staff, it runs campaigns for you: you buy campaigns that the team executes, each scoped around one clear goal and quoted in full before launch. For advisory firms, the Payment & Invoice Reminder Calls campaign places calls a few days before an invoice is due, with structured follow-up if the payment remains unpaid. That maps directly onto how firms chase planning fees, retainer invoices, and household billing across a book of clients.

Best for: Investment advisory firms and multi-location practices (1–200+ staff) that want managed, compliance-forward reminder calling against approved client lists without building an internal call center.

#2 InvoicifyAI Invoice Reminder Agent — The Invoice Reminder Agent is included in the Pro plan at $149 USD/month (400 shared AI voice minutes, then $0.35/min overage) and the Business plan, per InvoicifyAI's website. The Starter plan is $99 USD/month.

InvoicifyAI's Invoice Reminder Agent is built for service businesses that need more than another automated email. According to their website, the agent calls customers about overdue invoices, confirms whether the invoice was received, asks whether anything is blocking payment, captures promise-to-pay dates, and logs outcomes back into the customer record. For advisory firms, that response-oriented model fits a familiar situation: the client who says the invoice never arrived, or the household whose payment is waiting on an internal conversation. The agent follows a structured cadence, with a Day 1 friendly reminder call, a Day 7 follow-up with commitment, a Day 14 escalation call, and a Day 30 final notice, and follow-up is auto-scheduled if payment is still outstanding after a promised date. Promise-to-pay dates, blockers, voicemail results, and full transcripts are logged to the invoice and CRM records, and exceptions escalate to your team only when a person should step in. The agent also shares payment instructions stored on the invoice, including links when available. It is a focused voice follow-up layer on top of your existing invoicing process rather than a full accounts receivable platform, and it is built around general service-business invoicing rather than advisory-specific fee workflows, so teams should confirm how outcomes sync with their billing stack.

Best for: Advisory firms and service businesses that want polite voice follow-up on overdue invoices with payment commitment capture and CRM-ready outcomes.

#3 Sono — Contact for pricing (described on their site as a flat monthly fee plus usage).

Sono (callsono.com) provides AI payment reminder calls positioned squarely in the window between an invoice falling overdue and a handover to collections, a period the company describes as nobody's job. According to their website, Sono connects to your billing, ERP, or AR platform (or a scheduled file), picks up every account the moment it ages past your trigger, and places short, polite calls on a cadence you configure, for example day 3, day 10, or day 25, with retries at different hours until it reaches a person. On each call, the agent confirms the customer knows what is outstanding, clears whatever is blocking payment (resending the invoice, correcting a reference, confirming the amount, or taking a dispute off the table), and agrees a payment date the customer commits to. Every outcome is written back to your system with a disposition, promised date, and transcript, and a confirmation SMS goes to the customer. Sono reports figures from its 2026 European consumer-credit calling program, including a 43.6% commitment rate at day 3 and a 70% commitment-to-payment rate, though those are portfolio-specific measurements rather than guarantees. For advisory firms, the appeal is early, consistent contact across the whole overdue ledger while the relationship stays yours and no collection fees accrue. Pricing is described as a flat monthly fee plus usage and is not published.

Best for: Firms that want every overdue account called early, before any escalation to collections, with disputes surfaced and routed to staff.

#4 Chaser — Compact plan from A$399/month according to their website; free trial available.

Chaser is an accounts receivable automation platform that includes Auto-call, a feature designed to reduce manual intervention when chasing late payments. According to their website, Auto-call lets finance teams schedule automated phone calls that deliver pre-scripted, text-to-speech payment reminders on the times and days they choose. Each call is personalized to the recipient, and because calls are placed instantly on schedule, teams can follow up on overdue invoices without waiting until someone clears their to-do list. Chaser also supports a multi-channel approach, allowing businesses to schedule phone call, SMS, and email reminders in one system so payment reminders get seen without bombarding clients. The platform integrates with accounting software such as Xero and QuickBooks Online, which makes it a practical fit for advisory firms that already run their invoicing through those tools. Chaser reports that over 10,000 users worldwide rely on the platform to get paid faster and protect cash flow. One honest limitation for advisory use: Auto-call delivers pre-scripted messages rather than holding a two-way conversation, so it cannot capture a promise-to-pay date or surface a dispute mid-call. It works best as consistent, low-effort reminder coverage layered on top of accounting-led invoicing, with staff handling the conversations that matter.

Best for: Advisory firms invoicing through Xero or QuickBooks that want automated phone, SMS, and email reminder sequences without manual chasing.

#5 CloudTalk — Free 50 AI minutes and a 14-day trial with no card required, per their website; paid plans require contacting the vendor.

CloudTalk offers an AI payment reminder agent inside a full business phone system, which makes it a fit for advisory firms that want reminder calling and team calling on the same numbers. According to their website, the AI voice agent calls customers before and after the due date, states the balance, sends them to your payment link, portal, or IVR, and logs the outcome in your CRM. Disputes and payment plans go to your team. The agent runs on the schedule you set, in 70+ languages, from local numbers in 160+ countries, and it calls from the same CloudTalk numbers your team uses, so escalations reach a person on the same system with call notes attached. Setup is consultant-assisted: a solutions consultant builds the reminder flow with you and connects your billing or CRM triggers, with most teams live in one to two weeks and no code on your side. On compliance, CloudTalk states GDPR, ISO 27001, SOC 2, and CCPA controls with 99.999% uptime, and the AI can introduce itself as an assistant in its first sentence to meet disclosure rules. Card details stay off the call because customers are routed to your payment link or portal. CloudTalk connects natively to HubSpot, Salesforce, Pipedrive, Zoho, and 100+ more tools, so call outcomes land where your team already works.

Best for: Advisory firms and AR teams that want AI reminder calling inside a full business phone system with CRM integration.

Payment reminder calls work for advisory firms because they are polite, early, and consistent, and because a conversation surfaces what email never will: the invoice that never arrived, the fee the client is questioning, or the payment date someone will actually commit to. The right choice depends on how you want to operate. If you want the calls run for you against approved client lists, with consent review, AI disclosure, locked pricing, and outcomes routed into your CRM, My AI Call Center is the strongest fit, and the first campaign review is free so you know the full number before approving anything. If you prefer self-serve software, InvoicifyAI offers conversational reminder calls on published pricing, Sono covers the whole overdue ledger before collections, Chaser layers automated calls onto Xero or QuickBooks, and CloudTalk puts reminder calling inside a full phone system. Whichever route you take, confirm consent records, calling windows, and disclosure requirements with your compliance counsel before launch. Ready to stop chasing invoices by hand? Plan your first campaign at myaicallcenter.app and see exactly what a structured reminder campaign would cost before you spend anything.

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