Two philosophies for getting paid faster. PaidNice makes non-payment expensive. Unpaid uses Claude AI to write reminders that clients actually read. Here's which approach fits which business.
A$29/mo Starter. AUD pricing. No credit card required.
PaidNice is a New Zealand-built accounts receivable tool whose standout strength is penalty automation — late fees, interest charges, and early-payment discounts driven by a configurable rules engine. It integrates with Xero, QuickBooks, and Stripe, and adds email and SMS reminders, automated statements, and a customer payment portal. Its entry plan, Essentials, is A$99/month (US$69) for up to 150 invoices a month.
The product's underlying assumption is that the right lever for getting paid faster is making non-payment expensive — late fees that apply automatically, interest charges that compound, discounts that reward early settlement. For some businesses that's genuinely the right answer. For others — particularly those whose late-paying clients are otherwise good relationships — late fees create disputes and damage trust more than they accelerate payment.
Unpaid takes the opposite philosophy. AUD pricing at A$29/month Starter, Claude AI composing each reminder email at send time, and a 5-stage escalation that shifts tone naturally from courteous to firm without ever crossing into adversarial. The bet is that better communication gets more invoices paid than better penalties — and adds Australian-specific risk checks (PTRS and ABN) that PaidNice doesn't cover.
For B2B operators selling to sophisticated finance teams, late fees can work — the cost signal is unambiguous, and the accounts payable team treats avoidable charges seriously. But for tradies billing small builders, consultants invoicing growing businesses, or freelancers chasing creative agencies, a late fee is more likely to trigger an awkward phone call disputing the charge than to accelerate payment. The relationship cost compounds across the year and you end up with fewer repeat clients, not just slightly later ones.
Australian consumer law and ACCC guidance also restrict how late fees can be set, disclosed, and applied. Late fees applied without proper contractual basis can be challenged, and you're back to chasing the dispute instead of the invoice. PaidNice handles the mechanics well, but the strategy only works if late fees are genuinely the right tool for your client base.
PaidNice's reminder system is template-driven, with rules that decide which template fires when. The penalties make the emails sound more consequential, but the language itself is inserted from a template every time. Clients who receive regular automated communication learn to spot template emails, and once they do, the late fee is the only thing that gets attention. The reminder itself becomes background noise.
Unpaid takes a different approach. Claude AI composes each reminder at send time, drawing on the customer's payment history, the invoice context, and the current escalation stage. The result reads like a personal note rather than a form letter. Over a 5-stage sequence, the tone shifts naturally — friendly day-3 nudge, clear day-7 follow-up, firm day-14, direct day-30 — without ever feeling templated. Each reminder is the lever, not just the dressing for a late fee.
PaidNice's entry plan, Essentials, is A$99/month for up to 150 invoices a month, and its Pro plan starts at A$139/month for up to 300. Unpaid Pro is A$49/month with unlimited invoices, and Unpaid Starter is A$29/month for up to 10 invoices a month.
Both publish prices in Australian dollars, so neither adds a currency conversion. For a business sending 11 to 150 invoices a month, the like-for-like comparison is Unpaid Pro at A$49 against PaidNice Essentials at A$99. Above 150, PaidNice's Pro plan starts at A$139 for up to 300 invoices; Unpaid Pro stays at A$49 with no invoice limit.
Honest comparisons cut both ways. There are workflows where PaidNice genuinely fits better than Unpaid.
| Feature | Unpaid | PaidNice |
|---|---|---|
| Entry plan | A$29/mo Starter (up to 10 invoices) | A$99/mo Essentials (up to 150 invoices) |
| Next plan up | A$49/mo Pro (unlimited invoices) | A$139/mo Pro (up to 300 invoices) |
| Billed in AUD | ||
| Xero integration | ||
| QuickBooks integration | ||
| Stripe integration | Via Connect | |
| AI-written emails (not templates) | ||
| Smart reply handling | ||
| 5-stage escalation | AI-composed | Template-based rules |
| Dispute detection | ||
| Late fee automation | ||
| Early payment discounts | ||
| Interest calculation rules | ||
| SMS reminders | ||
| Customer payment portal | ||
| PTRS risk checking | ||
| ABN / GST verification | ||
| Built in Australia | NZ-based |
Feature information gathered from public sources and may change. Verify current details on each provider's website. PaidNice prices were checked on paidnice.com/pricing on 10 October 2026.
Both products read invoice data directly from your accounting provider, so there's no data migration, no historical export, and no risk of losing AR history. The change is essentially re-pointing which tool runs the reminder sequences.
PaidNice is built around penalty enforcement. Its standout features are late-fee automation, interest calculation rules, and early-payment discount engines. The reminder emails are template-based, with the assumption that the real lever for getting paid is making non-payment expensive. Unpaid is built around communication. Each reminder is composed by Claude AI from scratch using the customer's payment history and the current escalation stage, with the underlying assumption that well-written follow-ups get more invoices paid than late fees do. Both are valid philosophies — they suit different businesses.
It depends on your client base and your contracts. Late fees can work for businesses with sophisticated commercial clients who treat them as a genuine cost signal — particularly in B2B contexts where finance teams flag any avoidable charge. They tend to backfire for businesses serving smaller clients, where a late fee often triggers a dispute, damages the relationship, and delays payment further while the dispute is worked through. Australian consumer law and ACCC guidance also place restrictions on the size and disclosure of late fees, so they need to be set up carefully. PaidNice handles all of this if late fees are your strategy. Unpaid's approach is that an AI-written, well-timed reminder usually moves invoices faster without the relationship cost.
No. PaidNice's entry plan, Essentials, is A$99/month (US$69) for up to 150 invoices a month, and its Pro plan starts at A$139/month for up to 300. Unpaid's Starter is A$29/month for up to 10 invoices a month, and Unpaid Pro is A$49/month with unlimited invoices. PaidNice publishes fixed local prices, so Australian customers can be billed in AUD on either product. PaidNice prices were checked on paidnice.com/pricing in October 2026; check their site for current pricing.
Yes — Unpaid sends SMS reminders via Twilio as a companion to email reminders. SMS is opt-in at the user and customer level, with a four-layer cost control system (global kill switch, user opt-in, customer opt-in, monthly budget per user). Like PaidNice, this is genuinely useful for customers who don't open email reliably but check their phone. Unlike PaidNice's penalty-based escalation, Unpaid's SMS reminders are written by AI in the same conversational tone as the email reminders.
Technically yes, but you'd be sending customers two automated emails per overdue invoice — which defeats the purpose of either tool. The more useful pattern, if you want late-fee automation alongside AI-written reminders, is to use Xero's or QuickBooks' native late-fee tooling for the penalty side and Unpaid for the reminder communication. Both products write to the same accounting source of truth, so they don't conflict.
Setup is typically under 10 minutes. Both products read invoice data directly from Xero or QuickBooks, so there's no data migration. Pause PaidNice's automated sequences, connect Unpaid to your accounting provider, review the first AI-composed reminder before it sends, and you're operational. If you're using PaidNice's late-fee engine, decide whether to configure equivalent late fees in Xero or QBO natively, or simply rely on Unpaid's escalating reminder tone to do the work. Most operators run both in parallel for a week before cancelling PaidNice.
Plans from A$29/month. AI-written reminders. SMS companion via Twilio. PTRS and ABN checks built in. Billed in AUD. You can keep PaidNice running in parallel while you evaluate.