Invoicing Software Built for Consultants
Send polished client invoices in minutes, track project payments, and automate recurring retainers. Spend less time on billing admin and more time on billable work.
14-day free trial · No credit card required · Cancel anytime
Built for How Consultants & Agencies Actually Work
Stop creating invoices manually in Word or Excel — generate professional invoices in seconds
Track which clients have paid and which invoices are outstanding at a glance
Bill international clients in their local currency with multi-currency support
Set up monthly retainer invoices once and let them auto-send on schedule
Everything You Need, Nothing You Don't
Project-Ready Invoicing
Line-item invoices for project milestones, hourly work, or fixed fees. Tax and discounts handled.
Multi-Currency
Bill international clients in USD, EUR, GBP, or any currency. Clear payment tracking across all accounts.
Retainer Automation
Set up monthly retainer invoices once and let SolidInvoice generate and send them on schedule.
Online Payments
Clients pay directly from the invoice link. Status updates automatically when payment is received.
Start invoicing in minutes
Create your account
Sign up in 30 seconds and start your 14-day free trial. No credit card required.
Set up a client and project
Add a client, define your line items or hourly rates, and create a quote or invoice immediately.
Get paid
Send the invoice, let the client pay online, and mark it done. Set recurring billing for retainers.
Ready to simplify your invoicing?
Join thousands of consultants & agencies who invoice with SolidInvoice.
Start Free Trial14-day free trial · No credit card required
Simple, Transparent Pricing
Start on Free. Upgrade to Pro for automation, custom branding, and API access. No per-user fees on Pro, no hidden charges.
Pro plan shown. Free and Business ($39) also available.
- Unlimited invoices & quotes
- Multi-currency support
- Recurring retainer billing
- Online payments (Stripe, PayPal)
- Client & project management
- Custom invoice templates
- Payment tracking
- Team roles for collaboration
- REST API for integrations
- Open source — full data control
No credit card required · Cancel anytime · Or self-host for free