# Four-step billing upgrade wizard with live invoice preview sidebar and due-today total

> Plan, seats, payment, and review flow that recalculates seat subtotal, annual discount, and support fee into a draft invoice. Uses ReUI Stepper, Badge, Alert plus Card, RadioGroup, Slider, Select, and Calendar. For checkout and seat upgrade screens.

A paid shadcn/ui block sold by the [@reui](https://reui.io/?utm_source=shadcn.exchange) registry, listed on [shadcn.exchange](https://shadcn.exchange/r/reui/wizard-4).

- Page, with a preview: https://shadcn.exchange/r/reui/wizard-4
- Screenshot: https://abzjhwgwpdpz7ua5.public.blob.vercel-storage.com/shots/reui/wizard-4-light-edc2b0e3f543a926.png
- Listed: 2026-10-13

## Buy and install

@reui sells this block, and its code is not on shadcn.exchange. Buy it from the registry, which installs it for those who have: https://shadcn.exchange/out/reui/wizard-4

## Dependencies

- npm packages: `cn`, `date-fns`
- Registry items: `@reui/alert`, `@reui/badge`, `@reui/stepper`, `button`, `calendar`, `card`, `field`, `input`, `item`, `popover`, `radio-group`, `select`, `slider`, `tooltip`