Source: https://aquasops.com/features/invoicing-and-online-payments Last updated: 2026-10-29 > Quotes, invoices, deposits and receipts for water treatment jobs, with online payment through Paystack and a clear ledger behind it. # Quotes, invoices and online payments in naira The job is done; now it has to be billed and paid. AquaOps makes quotes and invoices from the job, sends them as PDFs with a link, takes online payments through Paystack, and keeps an exact ledger so the numbers always add up. **Availability:** Online payments run on Paystack. Ask us about live availability for your company. [Book a demo](https://aquasops.com/contact)[All features](https://aquasops.com/features) Illustration with sample data *[Image: Blue lamella plates inside a settling tank at a water treatment plant, with a steel walkway down the middle]* The problem ## Billing is slow and money is unclear Invoices are typed again from the job notes. Customers pay by transfer and someone has to match it. Nobody is sure what is outstanding. ### Quotes and deposits Send a quote, take a deposit, and let the customer accept or decline from a link. A "no" must come with a reason. ### Invoices from the job Pull in the work and the parts used. One invoice can cover several jobs. Set your own VAT rate, prefixes and terms. ### PDFs with a QR code Invoices, quotes and receipts are made by the server as PDFs. The QR code opens the same document online. ### Online payment A customer pays an invoice from its link or from the portal by card or bank transfer through Paystack. ### An exact ledger Every movement of money is a balanced entry that can never be edited. A mistake is corrected with a reversing entry. ### Chasing late payers Reminders go out by themselves on the days you choose after the due date, once per step. Learn more ## Read next - [Take online payments with Paystack](https://aquasops.com/help/take-online-payments-with-paystack) - [Create a quote and take a deposit](https://aquasops.com/help/create-a-quote-and-take-a-deposit) - [Water treatment software in Nigeria: what to look for](https://aquasops.com/guides/water-treatment-software-nigeria-what-to-look-for) How it works ## Three steps 1. 1 ### Quote or invoice Make it from the job. Choose whether the customer pays the processing fee. 2. 2 ### Send it Email it to one or several addresses with a link to the online copy. 3. 3 ### Get paid The customer pays online, or you record cash, transfer, POS or cheque. The invoice updates itself. Questions ## About quotes, invoices and online payments **### Do you handle VAT?** You set the VAT rate and how it applies in your billing settings. Amounts are kept in whole kobo so totals are exact. **### How does online payment work?** Payments go through Paystack. Online money is confirmed only when Paystack tells us it arrived, and a company withdraws its balance to a bank account whose name has been verified. **### Can I still record cash and transfers?** Yes. Staff can record cash, bank transfer, POS and cheque payments. Online payments are never marked paid by hand. ## Works together with [Jobs and schedulingBook, assign and follow every service visit, from the first request to the closed job.](https://aquasops.com/features/job-management)[Customer portalYour customers see their visits, invoices, documents and open tickets, and can pay online.](https://aquasops.com/features/customer-portal)[ReportsProfit and loss, cash flow, receivables, revenue by service, jobs and stock value, to the kobo.](https://aquasops.com/features/reports) ## See it with your own kind of work Book a short demo. Tell us what you service and how many people you have, and we will show you the parts that matter to you. [Book a demo](https://aquasops.com/contact) [See how it works](https://aquasops.com/how-it-works)