Best Payment & Invoice Reminder Calls for Investment Advisory Firms

For investment advisory firms, the move toward fee-for-service financial planning has made recurring retainer invoicing a core operational reality. Unlike AUM fees that sweep automatically from custody accounts, planning retainers, flat fees, and hourly engagements require active invoicing, active collection, and active follow-up when a client forgets, delays, or disputes a charge. According to Kitces.com, the operational inefficiency of fee-for-service billing is precisely why tools like AdvicePay were created, and it remains the reason so many advisory firms still struggle with aging receivables on the planning side of the book. Email reminders alone rarely close the gap. A planning client whose invoice sits in a personal inbox for three weeks often needs a real conversation to confirm the invoice arrived, surface an approval delay, or capture a specific payment date. That is where payment and invoice reminder calls earn their place. The five platforms below help advisory firms run those reminder calls professionally, with consent-aware outreach, structured follow-up, and outcome reporting that fits the way financial planning firms actually bill and reconcile. Whether you charge monthly retainers, quarterly planning fees, or one-time project fees, one of these solutions can keep your receivables from quietly stalling.

#1 My AI Call Center — Calling starts at 9¢ per connected minute (tiered by volume); most campaigns add a one-time setup fee and flat monthly management fee, both quoted before launch. 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, based in Halifax, Nova Scotia with an operating presence in Austin, Texas. Rather than selling software you have to configure and staff yourself, the model is simple: you buy campaigns that the team runs for you, each scoped around one clear goal and quoted in full before launch. For investment advisory firms, the Payment & Invoice Reminder Calls campaign places structured calls a few days before an invoice due date, with follow-up if the payment remains unpaid, so retainer balances and one-time planning fees get caught before they age into hard collections. Every campaign runs only against approved, permissioned, or reviewed contact lists, and list source and consent records are checked before any campaign launches. Bought lists without clear permission records are flagged and, in most cases, declined, and the team tells you plainly if a list will not support the campaign before you spend anything. Compliance is built into every call: AI-generated voices are treated as artificial voices under the TCPA, prior express consent is required, AI disclosure appears on every call, keyword opt-outs (STOP and REVOKE) are honored immediately, DNC requests are carried into client records, and state-specific quiet hours and calling rules are respected. Pricing starts at 9¢ per connected minute, tiered by volume, with the rate locked for the campaign. Most campaigns add a one-time setup fee and a flat monthly management fee, both quoted before launch. There are no per-seat charges, no platform bill, and no minimums you did not choose. Outcomes route back into the CRM and scheduling tools you already run, with a named outcome report showing disposition codes (confirmed, opted out, no answer), per-call notes, and follow-up requests handed to your team. The first campaign review is free, so advisory firms know the full number before approving launch.

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

#2 Anchor — $5 per payment received; no subscriptions or hidden fees.

According to its website, Anchor (sayanchor.com) is financial advisor billing software built specifically for fee-for-service planning firms. Rather than running reminder calls as a standalone service, Anchor captures the client's payment method at signing and charges it automatically on the due date, which removes much of the manual follow-up work that drives reminder calls in the first place. The platform supports customizable planning agreements, dynamic billing and fee controls, flexible payment options (ACH or credit card), configurable processing fees, recurring invoicing with reminders, and a real-time business dashboard that tracks live revenue, renewals, and outstanding invoices. Anchor integrates natively with QuickBooks Online and Xero for automatic reconciliation, and connects to Zapier and Make for broader workflow automation. The company states it powers more than 1,500 US financial advisors and advertises a -90% reduction in late payments and 15+ hours saved monthly on admin. Pricing is simple: $5 per payment received, with no subscriptions or hidden fees, and no credit card required to request a demo.

Best for: Financial advisors and planning firms that want to automate retainer and flat-fee collection at the point of signing, reducing the need for follow-up reminder calls altogether.

#3 AdvicePay — Contact for pricing (quote-based by firm and client scope); payment processing fees apply on top.

According to its website and coverage on Kitces.com, AdvicePay is a payment processing platform built specifically for financial advisors who charge fee-for-service planning fees, including one-time project fees and recurring retainers. The platform was created by the XY Planning Network team after registering hundreds of independent RIAs and seeing exactly what state regulators expect for compliant recurring retainer billing. AdvicePay handles the invoicing and payment collection side of fee-for-service planning, with built-in compliance features designed to address custody concerns and provide proper client notifications. It integrates with the systems financial planners already use, which is part of why it has become a common choice for advisors transitioning away from the AUM model. Pricing is quote-based and varies by firm and client scope; the company does not publish a flat starting rate, and payment processing fees apply on top. AdvicePay is best understood as the billing system of record for planning fees, not as an outbound reminder call service.

Best for: RIAs and financial advisors building a fee-for-service planning practice who need a compliant billing system of record for retainers and project fees.

#4 InvoicifyAI Invoice Reminder Agent — Included in the Pro plan at $149 USD/month (400 shared AI voice minutes, then $0.35/min overage); also included in the Business plan. Starter plan at $99 USD/month.

According to its website, InvoicifyAI's Invoice Reminder Agent goes beyond automated email reminders by calling customers about overdue invoices, confirming whether the invoice was received, asking whether anything is blocking payment, capturing promise-to-pay dates, and logging outcomes back into the customer record. The company positions it for service businesses whose biggest problem is not sending the first reminder but getting a real response after emails have been ignored, which applies to advisory firms whose planning clients ignore emailed invoices while the retainer clock keeps ticking. The platform focuses on response-oriented follow-up. Instead of simply scheduling another reminder, the agent has a conversation, captures blockers like a missing purchase order or a disputed amount, and records the commitment so the next step is clear. A typical cadence described on the site runs Day 1 reminder, Day 7 follow-up, Day 14 escalation, and Day 30 final notice, with auto-scheduled follow-up if a promised payment does not arrive. InvoicifyAI describes this as CRM-ready outcome logging, meaning call results connect to customer history rather than getting lost in a spreadsheet. Pricing for the Invoice Reminder Agent is included in their Pro plan at $149 USD/month according to their published pricing page, which also bundles an AI receptionist and CRM suite.

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

#5 Callsy — Contact for pricing; site advertises a 50% off launch promo and a 30-day "pays for itself or you don't pay" guarantee.

According to its website, Callsy provides an AI payment reminders and dunning agent, branded as "Emma," aimed at B2B SaaS, agencies, subscription brands, and service businesses that dislike calling good customers about money. The workflow starts when an invoice goes overdue or a charge fails in connected systems (Stripe, Chargebee, Recurly, QuickBooks, or Xero), and the agent begins a sequence on a cadence you choose. Emma emails first on your brand with the invoice number, amount, and a one-tap pay link; the company reports that around 56% of overdue invoices clear from email before a single call is placed. If the invoice goes quiet, Emma escalates to voice and SMS: she calls, confirms identity, asks if anything is wrong, and can send a PCI-DSS-compliant card-update link by SMS during the call so card details never pass through the voice channel. Every touch logs to your billing and accounting stack for a clean audit trail. Callsy publishes vendor-reported figures including a 41% lift in on-time payments and a 4.6/5 average across payment-reminder campaigns, and states that for pre-collections (first 60 days overdue) this is standard accounts-receivable activity rather than formal debt collection, with TCPA and GDPR respected and 60-plus-day defaults handed off to your collections vendor with the full call log. Pricing is not publicly listed; the site advertises a 50% off launch promo and a 30-day "pays for itself or you don't pay" guarantee.

Best for: Advisory firms and subscription-style service businesses that want an email-first reminder workflow with voice escalation, especially those billing through Stripe, QuickBooks, or Xero.

Choosing the right payment and invoice reminder call solution for an investment advisory firm comes down to how your firm actually bills and what kind of follow-up your clients respond to. Anchor and AdvicePay are strongest when you want to capture payment at the point of signing or build a compliant fee-for-service billing system from scratch, which prevents most reminder calls from ever being necessary. InvoicifyAI and Callsy fit advisory-adjacent firms that want voice-driven follow-up on already-issued invoices, with email-first cadences that resolve many balances before a call is placed. My AI Call Center is the right fit when your firm wants a managed partner to run structured reminder campaigns against approved client lists, with consent verification, TCPA-aware compliance, and rate-locked pricing known in full before launch. If your retainer receivables are stalling and your team is already stretched thin across planning, review, and client service, a done-for-you calling campaign can recover cash flow without pulling advisors away from billable work. Start with a free campaign review at myaicallcenter.app to see the full number before you approve anything, or email [email protected] to scope a Payment & Invoice Reminder Calls campaign around your existing client list and billing cadence.

Frequently asked questions