Retainers, day rates and milestones — invoiced professionally, tracked automatically, with every engagement’s paperwork in one place.
Consulting income is lumpy: retainers, day rates, milestone payments, sometimes in three currencies. OPSKAP OS turns that into clean, VAT-ready invoices with your branding, recurring billing for retainers, and a dashboard that shows exactly who owes you and what is overdue.
Engagement letters, NDAs and IDs live next to the client they belong to — so when a new engagement starts, the paperwork takes minutes, not evenings. And if you serve clients through your own company while advising others as a board member, multi-company support keeps every hat separate.
Recurring invoices are recreated automatically each month — review and send in a click.
Your logo, correct VAT, sequential numbers — invoices that look like you charge properly.
NDAs, engagement letters and IDs linked to each client.
Money in vs out per month, straight from your invoices — no bookkeeper needed.
How it works
Your company, your bank details, your logo — once.
One-off, milestone or monthly retainer.
Overdue reminders and one dashboard for all clients.
Common questions
Yes: multi-company workspaces keep each entity’s invoices, clients and documents apart, with one dashboard on top.
Yes — EUR, USD, GBP, AED and more, with honest conversion in your statistics.
No. They get a PDF by email and a public page with one-tap copy of payment details.
More on the product page and in the FAQ.
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