Founding clients: first month free

Get paid faster, without the awkward chasing.

Each morning we prepare that day's polite invoice reminders as ready-to-send drafts in your own email, in your own words. You review them and press send. You get a weekly overdue report, and invoices 30 days late are flagged so you know who to call. A Managed plan with reply drafts and a weekly call list is coming soon. We set it up and look after it, so you can get back to running your business.

  • Nothing is ever sent for you. You review each draft and press send
  • Works with your current invoice list. No new software to learn
  • First month free for founding clients: send your overdue list, daily reminder drafts start within 48 hours, you send every message. Then from S$150/month, cancel anytime

The problem

You did the work. Now you're chasing the money.

Chasing eats your evenings

Checking who has paid, working out what's overdue and writing reminder after reminder is slow work that keeps getting pushed to "later".

It feels awkward

Nobody wants to nag a good customer. So reminders go out late, or not at all, and "30 days" quietly turns into 60.

Cash flow takes the hit

Late payments mean you cover salaries, rent and suppliers out of your own pocket while money you've earned sits with someone else.

How it works

Your reminders, running on autopilot

Each customer gets each reminder only once. As soon as an invoice is marked paid, reminders for it stop.

  1. 01

    It starts with the invoice list you already keep

    A simple spreadsheet or an export from your accounting software. No new system for your team. Every morning the system checks which invoices need a nudge.

  2. 02

    Reminders are prepared on a set schedule

    Friendly first, firmer later. Stages and timing can be adjusted to suit your payment terms.

  3. 03

    Emails from you, in your name

    Each morning the day's emails are waiting as drafts in your own business inbox. You check them and press send, so replies come straight to you.

  4. 04

    A weekly overdue report and monthly summary show where your money is

    What was collected, what's still outstanding by age, your top late payers and who needs a personal call. You also get a short weekly list of who still owes you.

Getting started takes 1–3 weeks

  1. Free 15-min callWe look at how you invoice today. If it's not a good fit, we'll tell you.
  2. We set it upConnect your invoice list and email, and write messages in your tone. You sign a short consent and data agreement first.
  3. Test runFor 1–2 weeks you read sample drafts and tell us what to change.
  4. Go liveOnly after you approve in writing. Daily drafts start, you press send, and you mark invoices as paid.

What's included

Done for you, with you in control

Setup from your invoice list

We work from a spreadsheet or an export from your accounting software. No new system for your team.

Drafts in your own email

Reminders are prepared in your business inbox and sent by you, so replies go straight to you. We never contact your customers in our name.

Messages in your tone

Four reminder messages, written with you and approved by you before any drafts are prepared.

Four reminder stages

3 days before the due date, on the due date, then 7 and 14 days late. Every reminder is a draft you review first.

Weekly overdue report & monthly summary

Total owed, what's overdue by age, your top late payers and who needs a personal call.

30-day human flag

Long-overdue invoices are handed to you rather than getting another reminder email.

You always press send

Nothing is ever sent automatically or by us. Daily drafts only start after your written OK.

Ongoing care

We prepare the drafts every morning, adjust messages and fix issues. You mark invoices paid (or tell us) and paid invoices drop off.

Pricing

Simple monthly pricing

First month free for founding clients. Setup included, no setup fee, no lock-in.

Essentials

S$150/month

Any number of invoices. Daily reminder drafts in your own email, in your name. You press send and handle replies.

Managed, coming soon

Coming soon

Everything in Essentials, plus reply drafts and a weekly call list. Ask to join the waitlist.

Founding clients

First month free. Send your overdue list, daily reminder drafts start within 48 hours, you send every message. At month end we report the cash collected. Founding clients get the first month free, starting from go-live, then pay S$150/month. We're just starting out. Our first pilot is with a family business and we'll only publish results once we have real ones. Founding clients get hands-on help from us directly, and we ask for honest feedback in return.

Not a debt collection agency. Seikumi prepares polite invoice reminders for you to send to your customers, in your name. We never take payments, contact third parties, threaten, or take legal action. Those steps stay with you and your lawyers.

Getting started (included)

  • Connect invoice list & your email
  • Reminder messages written with you
  • Daily drafts start within 48 hours of your list
  • You approve every message first

Essentials includes

  • Reminder drafts ready each morning
  • Any number of invoices
  • Weekly overdue report + monthly summary
  • Message tweaks & support
  • No lock-in, cancel anytime

Managed (coming soon) will add

  • Draft answers to customer replies, ready for you to send
  • Weekly call list and call script for you or your staff
  • Disputes and anything sensitive passed back to you
  • No debt collection or legal action, ever

Pilot pricing Founding-client offer: first month free, then from S$150/month. These are early prices while we take on our first clients, and they may change later. Prices exclude any third-party costs such as a paid email account, if you need one.

Our promise

  • Nothing goes out without your approval
  • Cancel anytime
  • No lock-in contract
  • Your data deleted on request

Free download

Free: payment reminder templates

Four polite reminder emails (3 days before, due today, 7 and 14 days late), two WhatsApp versions and three quick tips. A 2-page PDF for Singapore SMEs.

  • Copy, paste and send
  • Courteous wording, firm when needed

We use your details only as described in our privacy notice.

About Seikumi

A small Singapore business

Seikumi is a Singapore business built for one job: helping small businesses get paid on time, politely. We saw how much time owners lose chasing invoices, so we made it simple. We're small and hands-on, so you get a real person who knows your setup.

Seikumi is inspired by the Japanese shikumi (仕組み): the system behind how things work. That is what we build for your receivables.

For bookkeepers & accountants

Partner with Seikumi

Help your clients get paid on time without adding work for your team.

Refer clients

  • S$150 for each referred client who signs
  • We do the setup, reminders and reporting
  • Your client relationship stays yours

Offer it under your brand

  • White-label credit control for your clients
  • Reports and messages in your firm's name
  • Pricing: talk to us

Talk to us about partnering

FAQ

Questions owners ask

What about my customers' data and the PDPA?

Your customers' names, emails and phone numbers are personal data under Singapore's Personal Data Protection Act (PDPA). We handle them like this:

  • Written consent first. Before any real data is loaded, and again before daily drafts start, you confirm in writing.
  • You own the data. We use it only to prepare your payment reminder drafts and reports. We don't use it for marketing or share it with anyone.
  • Minimal data. We only need invoice number, customer name, email/phone, amount and dates.
  • Deleted when you leave. If you cancel, we hand back or delete your data.

You remain responsible for being allowed to contact your customers about money they owe you (for example, an existing business relationship). Reminders are about the invoice only, never marketing. We're not lawyers, so if you're unsure, check the PDPC's guidance or ask your adviser.

Do reminders come from you or from my business?

From your business. Reminders are prepared as drafts in your own email account (ideally a dedicated address like accounts@yourcompany), using access you can cancel at any time, and you press send. Customers reply to you directly. On Essentials, you handle the replies. If you need to call a customer, invoices 30 days late are flagged for you. We never contact your customers under the Seikumi name, and we never take collection or legal action.

Do you do WhatsApp reminders?

Not yet. For now reminders are by email only. WhatsApp drafts may come later, and you would still press send yourself. We never send messages to your customers for you, on any channel.

What happens when a customer pays?

You mark the invoice as paid in the shared invoice list, or just message us and we'll update it. Reminders for that invoice stop. The system doesn't read your bank account, so keeping "paid" up to date is the one thing we need from you.

Won't this annoy my customers?

Each customer gets at most four short, polite messages per invoice, in wording you've approved. At 30 days overdue the emails stop and the invoice is flagged. You then follow up personally. Anything disputed, in court or sensitive is stopped and comes back to you.

I already use accounting software. Do I need to change anything?

No. We work from your invoice list, either a shared spreadsheet or an export from your accounting software. Some accounting software has built-in reminders. If yours already works well for you, we'll tell you on the call.

Can I cancel anytime?

Yes. It's a month-to-month plan with no lock-in contract. Tell us before your next billing date and we'll stop the reminders, disconnect from your email and hand back or delete your data.

How long does setup take?

Reminders can be live within 48 hours of receiving your overdue list, once you have approved the wording. How fast it goes mainly depends on how quickly we can get your invoice list and email access sorted.

Free 15-minute call

Let's see if this fits your business

No hard sell. You'll leave knowing whether automated reminders make sense for you and what it would cost.

Prefer email? Write to hello@seikumi.com