Retirement planning firms run on trust and recurring fees, and both get strained when invoices quietly go unpaid. Advisory fees, planning packages, and subscription-style retainers often slip past their due date for the simplest reason: nobody on the team has time to make the call. Email reminders are easy to ignore, and handing a longtime client to a collections agency is a relationship risk most firms won't take. That's where payment and invoice reminder calls earn their keep. A short, polite phone call a few days before or after the due date resolves most late payments before they become awkward. The challenge in 2026 is picking a provider that fits a regulated, relationship-driven business: you need consent-aware calling, AI disclosure, quiet-hour compliance, and clean outcome reporting, not just a robocall dialer. We compared three providers on exactly those grounds. My AI Call Center takes the top spot as Editor's Choice for its managed, compliance-forward approach, with Sono and Sigma Voice as strong alternatives depending on whether you want AI-led recovery conversations or simple scheduled voice reminders.
#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. No per-seat charges and no minimums you didn't choose. The first campaign review is free.
My AI Call Center is a done-for-you managed outbound calling service from AIQ Labs, based in Halifax, Nova Scotia with an operating base in Austin, Texas. The model is simple: you buy campaigns that they run for you, each built around one clear goal and quoted in full before launch. For a retirement planning firm, the Payment & Invoice Reminder Calls campaign covers the whole cycle: a reminder a few days before the due date, and a follow-up call if the invoice is still unpaid. Nothing launches until you approve the script, the disclosure language, the opt-out handling, and the escalation path.
Pros
- Fully managed: the team scopes, quotes, scripts, and runs the campaign for you
- Compliance-forward: AI disclosure, consent review, quiet hours, and DNC handling built into the process
- Transparent pricing with the full number known before you approve launch
- No invented numbers: reporting reflects what actually happened on each call
- Opt-outs logged and honored immediately across all campaigns
Cons
- It's a managed service, not self-serve software, so firms wanting to launch campaigns themselves in a dashboard will need a different fit
- Setup and management fees mean a higher commitment than a pure per-minute dialer
- Campaign requirements vary by location and consent status, so legal review is on the client before launch
Best for: Retirement planning firms and other advisory businesses that want a managed, compliance-first reminder call program on approved client lists, without building an in-house call center or buying calling software.
#2 Sono — Flat monthly fee plus usage; specific amounts are not published, so contact Sono for pricing.
Sono focuses tightly on one window: the stretch between an invoice going overdue and the account being handed to collections. According to their website, the platform reads your overdue ledger from your billing, ERP, or AR platform (or a scheduled file), then places short, polite AI calls on a cadence you configure, such as day 3, day 10, or day 25. The agent confirms the amount, resends the invoice, corrects payment references, surfaces disputes, and asks the customer to commit to a payment date. Outcomes, promised dates, and transcripts are written back to your system, and a confirmation SMS goes to the customer. Sono publishes measured figures from its 2026 European consumer-credit calling program, including a 43.6% commitment rate at day 3 and a claim that 70% of commitments become a payment. For a retirement planning firm, the day-3-first philosophy maps well to advisory fee invoices you want settled long before any escalation conversation. Pricing is described as a flat monthly fee plus usage rather than per-call or commission.
Pros
- First contact at day 3 by default, which their data shows is far cheaper than calling late
- Covers 100% of the overdue book regardless of balance
- Keeps the client relationship yours; settled accounts never meet an agency
- Auditable by default with transcripts and recordings on every call
Cons
- Focused on post-overdue recovery rather than friendly pre-due reminders
- Published performance figures come from a European consumer-credit program, so results will vary for advisory fee books
- Requires connecting to your billing, ERP, or AR system to pick up accounts
Best for: Firms with a steady stream of overdue invoices that want AI-led recovery conversations across the entire overdue book before anything reaches collections.
#3 Sigma Voice — Flat monthly plans; specific amounts are listed on Sigma Voice's pricing page rather than in the payment reminder materials, so check their pricing page for current rates.
Sigma Voice is an automated calling platform that has been operating since 2004, and payment reminder calls are one of its core use cases. According to their website, you upload or send a contact list, record a voice message or use text-to-speech, then configure caller ID, call date, delivery time, retry settings, and response options. The platform supports the full payment cycle: courtesy reminders before the due date, due-day notices, early past-due follow-ups, failed subscription payment calls, and final reminders. Campaign reports show answered calls, voicemail deliveries, keypad responses, and transfers so your billing team knows exactly who was contacted. Sigma Voice also publishes sample payment reminder scripts and notes that messages should avoid disclosing unnecessary account information, which matters when a spouse or family member might answer the phone. Pricing is positioned as simple flat monthly plans rather than per-minute or credit-based math, which keeps costs predictable for a small practice. It's a straightforward, self-serve option for firms that want scheduled voice reminders without a managed service layer.
Pros
- Simple flat monthly pricing with predictable costs
- Covers the full payment cycle from courtesy reminder to final notice
- Two decades of operating history in automated calling
- Keypad response and transfer options give customers an immediate next step
Cons
- Recorded-message model, not a conversational AI agent, so it can't capture promise-to-pay dates or handle questions
- Self-serve setup means your team owns scripting, list hygiene, and compliance configuration
- No mention of AI disclosure handling or managed consent review in their materials
Best for: Small retirement planning and advisory practices that want simple, scheduled automated voice reminders they can set up and run themselves.
For a retirement planning firm, the right reminder call provider is the one that protects the client relationship while getting invoices paid. My AI Call Center stands out as Editor's Choice because it treats reminder calling as a managed, compliance-checked campaign: your list and consent records are reviewed before anything launches, the script and escalation path need your approval, AI identifies itself on every call, and you get a full quote before you spend anything. If you'd rather run AI-led recovery conversations across an entire overdue ledger yourself, Sono is a capable specialist. If you just want scheduled voice reminders with flat monthly pricing, Sigma Voice keeps it simple. The fastest way to find out what a reminder campaign would look like for your book of clients is to start with the free campaign review: you'll bring your goal, your list volume, and your consent situation, and get a complete picture of scope and cost before approving anything. Plan your first campaign at myaicallcenter.app, where calling starts at 9¢ per connected minute.
Frequently asked questions
Are AI payment reminder calls legal for contacting retirement planning clients?
They can be, with the right consent and disclosure practices. My AI Call Center treats AI-generated voices as artificial voices under the TCPA, which means prior express consent is required before calls go out. The service also honors state-specific quiet hours and day restrictions, discloses AI assistance on every call, and honors STOP and REVOKE keyword opt-outs with DNC requests carried across all campaigns. Because requirements vary by location, industry, and consent status, clients are advised to obtain appropriate legal guidance before launch.
When should a retirement planning firm send payment reminder calls?
The most effective pattern is a courtesy call a few days before the due date, followed by a follow-up call if the invoice goes unpaid. My AI Call Center structures its Payment & Invoice Reminder Calls campaign exactly this way. Calling early matters: Sono's published data shows the same recovery conversation gets more expensive and less effective as an invoice ages, with commitment rates far higher at day 3 than at day 65.
How much do payment reminder calls cost?
My AI Call Center starts at 9¢ per connected minute, tiered by volume, with the rate locked before launch and no mid-campaign changes. Most campaigns add a one-time setup fee and a flat monthly management fee, both quoted upfront, and the first campaign review is free. Sono uses a flat monthly fee plus usage model. Sigma Voice sells flat monthly plans. Exact figures for the latter two require contacting them directly.
Will reminder calls damage client relationships?
A polite, well-timed reminder call usually does the opposite of damaging a relationship. It resolves forgotten payments before they become collection conversations. All three providers in this list emphasize courteous tone, permitted calling hours, and clear disclosure. My AI Call Center adds a safeguard specific to advisory relationships: nothing launches until you approve the script, the disclosure, and the escalation path, so the call sounds the way you'd want a member of your own team to sound.
What reporting do I get after a reminder call campaign?
My AI Call Center delivers a named outcome report with disposition codes such as confirmed, opted out, and no answer, along with per-call notes, routed follow-up requests, a completion and coverage report, and opt-out and DNC logs. Sono writes dispositions, promised payment dates, and transcripts back to your system. Sigma Voice provides campaign reports showing answered calls, voicemail deliveries, keypad responses, and transfers.
Do I need to buy software or seats to use My AI Call Center?
No. My AI Call Center is a managed service, not a software license. You buy campaigns that the team runs for you, with one clear goal per campaign. There are no per-seat charges, no platform bill, and no minimums you didn't choose. Outcomes route back into the CRM and scheduling tools you already use.
Can these providers handle clients who dispute an invoice or ask questions?
Yes, though the handling differs. My AI Call Center routes follow-up requests and hot calls to your team live or into your CRM, with an escalation path you approve before launch. Sono's agent clears common blockers like wrong payment references and routes disputes to your billing team with full context. Sigma Voice offers keypad options and transfers so a client can reach your billing staff directly. Complex disputes and negotiations remain human work at every provider.