Invoice when the job's done — not the week after.
The invoicing module lets crew send an invoice straight from the job on their phone. It syncs automatically to your accounting system — e-conomic, Dinero, or Billy — and MobilePay payment is built in.

What's inside Invoicing
One-click invoicing
From completed job to sent invoice in under 30 seconds. No moving data between systems.
Sync with accounting
Direct integration to e-conomic, Dinero, and Billy. Bookkeeping happens automatically.
MobilePay payment
Customers pay via a MobilePay link in the invoice — money in the account the same day.
Recurring invoices
Route customers on fixed pricing? Invoices are generated and sent automatically on the right dates.
How service businesses use the invoicing module
Window cleaners
Job done → crew taps 'invoice' in the app → invoice sent via email/SMS with MobilePay link → customer pays same day → bookkeeping happens automatically in Dinero.
Read more about this industryCleaning companies
Recurring monthly cleaning contracts → invoice auto-generated on the 1st → sent via EAN/e-invoice to public-sector customers, regular invoice to private customers.
Read more about this industryPlumbers, electricians & HVAC
Technician logs materials and hours on the job → invoice auto-calculated → customer receives invoice with MobilePay link before the technician has left the address.
Read more about this industryModules that pair with Invoicing
Customer registry
Every customer, in one place
Searchable registry with history, documents, communication, and address validation via DAWA.
Learn moreWorkflow
Automate the repetitive
Pick the data, the schedule, and the recipient. The workflow sends the message — or files the summary in your inbox.
Learn moreReports
Numbers you can act on
Revenue, conversion rates, and crew performance — live on one dashboard.
Learn moreFrequently asked questions about invoicing and accounting
Which accounting systems does invoicing integrate with?
Can I send electronic invoices (e-invoice/EAN) to public-sector customers?
How does MobilePay payment work?
What does the MobilePay integration cost?
Can I create credit notes and partial invoices?
Go deeper on invoicing
Trades using this module, problems it solves, integrations it fits with, and articles where we go into detail.
Trades where this module makes a difference
How invoicing is used in the trades we work most closely with.
Window cleaners
Classic case: fixed routes, subscriptions and fast morning dispatch.
Read moreCleaning
Contracts, key tracking and hour-based invoicing — built for cleaning companies.
Read morePlumbing
Urgent dispatch, project jobs and time/materials tracking.
Read moreHVAC
Equipment register, urgent dispatch and mandatory inspections.
Read moreElectrician
Service visits, case tracking and invoicing with on-site materials.
Read moreProblems this module solves
Deep dives into the operational challenges this module addresses — from route optimization to customer portal.
Integrations that fit
Tools Clientflow connects directly with — so data never has to be entered twice.
Dinero
Send invoices straight from the job to Dinero — no double entry.
Read moree-conomic
Sync customers, invoices and payments with e-conomic.
Read moreBilly
Invoice via Billy — customer data stays in sync both sides.
Read moreMobilePay
MobilePay payment on the invoice so customers settle in seconds.
Read moreStripe
Saved cards are charged automatically when the job completes — or the customer pays by card, Apple Pay, Google Pay or MobilePay.
Read moreRead more
Our own articles on the topic — from concrete numbers to strategic choices.
Automatic invoicing for service businesses
How much the invoice tail costs you — and how auto-invoicing eliminates it.
Read moreFrom 10 programs to one
What actually happens when a service business consolidates operations.
Read moreWindow cleaner software — what should you choose?
Comparison of the most popular programs in Denmark.
Read moreWhy we built Clientflow
Daniel tells the story behind the platform — and why the trade needed something new.
Read moreHow to use it in practice
Help center articles — for when you want to look under the hood.
Integrations & billing
Connect Dinero, Billy, e-conomic, MobilePay — and keep data clean.
Read moreSubscriptions & recurring contracts
How to set up recurring agreements — price, frequency and auto-invoicing.
Read moreReports & dashboards
Numbers you can act on — revenue, margins, route performance.
Read moreCompare with alternatives
How Clientflow stacks up against other tools in the market.
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