Bring your invoices together
Add invoices or import a CSV or Excel spreadsheet. Keep clients, due dates and remaining balances in one place.
INVOICE FOLLOW-UPS FOR SMALL BUSINESSES
DueHarbour
Less time chasing.
More clarity on what you're owed.
Keep unpaid invoices, payment promises and client conversations together. A focused workspace for freelancers, studios and small service businesses.
£12/month including applicable tax · Cancel future renewals online
ChatGPT sign-in required. No charge until you complete Stripe checkout.
ONE CLEAR PICTURE
Know what needs your attention.
Keep follow-ups organised
Send reviewed email reminders, record conversations and track payment promises. Put disputed invoices on hold.
See the next step
Find overdue balances and missed promises, record partial payments and prepare clear client statements.
DUEHARBOUR MONTHLY
One focused workspace.
£12/ month
GBP · Including applicable tax
Start your subscriptionRenews monthly until cancelled. Cancel in Settings → Manage billing; access continues until your paid period ends.
Included in DueHarbour Monthly
- Client and invoice records
- CSV and Excel invoice imports
- Manual partial-payment tracking
- Tracked email reminders and collection notes
- Payment promises and dispute holds
- Ageing reports, client statements and data exports
Your workflow: import or add invoices, record payments and send reviewed reminders directly from DueHarbour or your email app. Scheduled email sending and bank/accounting sync are not included in this plan.
A FEW USEFUL ANSWERS
Before you get started.
Is DueHarbour an accounting package?
No. DueHarbour focuses on invoice tracking and collection follow-ups. It does not replace bookkeeping, tax returns, bank reconciliation or professional accounting advice.
Does it automatically know when someone pays?
No. Record payments manually and check the latest balance before contacting a client. Invoices can be added individually or imported from spreadsheets.
How are reminders sent?
Prepare a reminder in DueHarbour, review the recipient and balance, then select Send reminder. Replies go to your sign-in email. Delivery results appear on the invoice. You can also use your own email app and record a manual reminder. Sending is limited to one email per recipient in 24 hours and 100 per workspace in 24 hours. Scheduled sending is not included.
How do I subscribe?
Open DueHarbour, sign in with your ChatGPT account, then choose Subscribe for £12/month in Settings. You confirm payment on Stripe's checkout page. Signing in alone does not charge you. After payment confirmation, save your business profile and add or import your invoices.
What happens when I cancel?
Cancel future renewals in Settings → Manage billing. Your access continues until the paid period ends. Afterwards your workspace becomes read-only, with existing records and exports still accessible. Cancellation does not delete your data.
Where is my workspace?
Sign in at app.dueharbour.co.uk with the same account each time. This public website contains product information and sample screenshots, not your customer records.
SUPPORT
Your invoices.
A little less admin.
Questions about your account, a payment or the £12 monthly plan?
Contact Will directly.
DueHarbour is operated by Will Straker, a sole trader.
Business information
Updated 16 September 2026Business contact address
Will Straker, trading as DueHarbour
1 Queens Road
Harrogate
HG2 0HE
Privacy policy
Learn what account and invoice information is used, which providers process it, and how to exercise your data rights.
Terms and conditions
The GBP 12 monthly plan includes invoice tracking and reviewed reminders. Scheduled sending and accounting sync are not included.
Cancellations and refunds
Cancel future renewals in Settings, then Manage billing. Access continues until the paid period ends.
Accessibility and support
Find keyboard guidance, known limitations and how to report a barrier.