The quote becomes the invoice, the invoice carries a payment link, and the money shows up against the client without you retyping anything.
Priced against the client and the site, sent as a PDF with your branding.
The check and the SOP attach themselves to the job as you go.
One tap from the job. Line items, VAT and due date carried over from the quote.
A Stripe link on the invoice. Card or bank, marked paid automatically.
Connect your own Stripe account and card payments land in your account, not ours, marking the invoice paid automatically. Bank transfers use the account details printed on the invoice - you mark those paid yourself.
Overdue invoices are flagged on your dashboard, with the payment link one tap away to send again yourself.
Monthly progress capture on the same site: duplicate last month's invoice in one tap, against the same client.
Export invoices and payments as CSV for the period they ask for, per client or across the whole operation.