Accounts receivable software
for engineering firms.

Paidnice chases progress invoices, takes payment, and charges the interest your agreement allows.

  • Every progress invoice chased, on every project.
  • Clients pay straight off the invoice.
  • Interest charged the way your fee agreement says.

No credit card. Your first 20 actions are free.

A payment reminder as it looks in Gmail, a one-page statement, and the timeline of one overdue progress invoice
Works with Xero QuickBooks

Two minutes, no sales pitch

See how Paidnice chases an invoice.

From the first polite nudge to the late fee landing on the invoice.

Every progress invoice chased, on every project.

Reminders enforce the terms in your fee agreement from the day an invoice goes overdue, sent from accounts at your own domain, not your name.

MS Mark S.🇬🇧 United Kingdom
★★★★★

"The app is easy to use, does what it claims to do and has already started to show improvements in our Accounts Receivable with less effort from the accounts team."

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148 automated actions queued for the next seven days: reminders, late fees and statements, each with the client and the day it goes out

One page where the developer clears every invoice.

Every reminder carries a pay button, and clients find and pay fees and reimbursables across projects on your own branded portal.

JB Justin B.🇬🇧 United Kingdom
★★★★★

"Really saved us time in helping customers settle multiple part paid Xero invoices in a single Stripe payment."

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A branded payment page where the client pays every open invoice at once, by card, bank transfer, ACH or direct debit

The interest clause in your fee agreement, applied.

Interest your fee agreement allows, added to overdue invoices and posted to your ledger. Runs per client group, so key clients stay exempt.

IA Ismael A.🇺🇸 USA
★★★★★

"First round of late penalties and everyone magically paid their bill. Amazing. Denym's team not only helped me onboard, they made a system adjust specifically at my request in around 48 hours."

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Payment terms per client group, and one overdue invoice running through them from reminder to escalation

Escalate before you have to invoke the stop-work clause.

When reminders run out, it escalates: a call task, a director email, or a credit stop, with the payer's record attached.

NS Nathan S.🇬🇧 United Kingdom
★★★★★

"Paidnice, Denym and his team have built an excellent product, they know the product well and it does exactly what it says on the tin."

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An escalation task list with due dates, today highlighted, and the opened task showing the payer's record: overdue balance, average days to pay, and a poor payer rating

Keep the project system you already run.

Paidnice does not raise invoices or replace your project software. It picks up what your billing run has already pushed into Xero or QuickBooks.

  • You bill from your PM toolProgress invoices by phase, exactly as you do now
  • It lands in Xero or QuickBooksOne click to connect, nothing to move over
  • Paidnice takes it from thereChasing, payment, interest, statements
It’s the debt collection system I’ve been looking for, for the last 15 years.
NZ Small Business App of the Year 2026
Tyler Caskey
Tyler Caskey
Partner, The Bean Counters
Accounting Apps Podcast
Xero App Award Winner
Xero Global App Awards
New Zealand Winner 2026 Global Winner 2025 Australian Winner 2025
Read the reviews

How it works

How does Paidnice know which invoices to chase?

Many engineering firms bill from a project management tool that pushes invoices into Xero or QuickBooks, and Paidnice reads them there. It sees every open invoice, its due date, and its balance, then runs your reminder, statement, and interest rules against them. Nothing changes about how you bill. When a payment lands in the ledger, the chasing for that invoice stops on its own.

Does it work with BQE Core?

Yes, engineering firms running BQE Core can keep billing exactly as they do now. BQE Core sends your invoices to QuickBooks Online once clients and projects are synced, and Paidnice picks them up from the ledger. The same goes for Total Synergy, Monograph, and Projectworks pushing into Xero or QuickBooks. Paidnice never touches the PM tool itself, it works from what lands in the ledger.

Can an engineering firm charge late fees on overdue invoices?

Many engineering firms in the US already have an interest clause in their fee agreement, commonly 1 to 1.5 percent per month on overdue balances. Whether and how much you can charge depends on your contract and your state, so check both. Paidnice handles the mechanical part: it calculates the interest your agreement allows, adds it to the balance, and posts it to your ledger.

Can I see what is going out before it sends?

Yes, engineering firms usually start Paidnice in approval mode, where every reminder, statement, and interest charge waits for your click before it leaves. Once you trust the cadence, switch any policy to fully automatic. You can also mix modes across groups: hands-off for one-off residential clients, approval-first for municipal work where you want eyes on every send.

What happens when a client disputes one invoice on a project?

Engineering firms hit this constantly: a change-order invoice is contested while the rest of the project bills on. Pull that one invoice out of the policy by its reference, and the reminders and interest on it stop while every other invoice keeps its schedule. The same filter holds retainage lines that stay open until closeout.

What happens after the last reminder?

For engineering firms the ladder gets firmer without you drafting anything. Early reminders come from accounts at your own domain, and later sends carry the principal's name. Past that, Paidnice raises escalation tasks: a call with the payer's record attached, a director email, or a credit stop while the balance clears. You decide how far it runs before anyone reaches for the stop-work clause.

For engineering firms

Stop financing your clients' projects with unpaid fees.

  • Up and running in about 15 minutes.
  • Nothing changes about how you bill your projects.
  • No contracts and no lock-ins.

No credit card. Your first 20 actions are free.

Paidnice illustration showing a late fee being issued onto an invoice