For architects
Invoice software for architects
Bill each design stage against the agreed fee and keep site visits and consultants apart.
Free for 5 invoices a month.
The Openn Group
EIN / Sales tax permit12-3456789
Invoice
OG/2026/0046
- Date
- Oct 5, 2026
- Due
- Oct 20, 2026
Bill to
Brew Street Cafe
| Item | Qty | Rate | Amount |
|---|---|---|---|
| Concept design stage, 20% of fee | 2,500.00 | ||
| Site visits | 200.00 |
Total$2,700.00
Who it is for
What architects invoice for.
For architects and interior architecture practices. A job runs for months or years, the fee is agreed up front and billed by stage, and the same client receives many invoices.
- Stage 1 · 30%$900DuePaidStage 2 · 40%$1,200DueStage 3 · 30%$900Draft
Fees by stage
Quote the whole fee with a line per stage. As each stage ends, send its invoice, with the stage and the share of the fee in the description.
OG/2026/0046
DuePart paid$3,000.00
Paid $900.00Remaining $2,100.00
A retainer or mobilisation advance
Invoice the advance first, or record it as a part payment against the first stage.
Site visits and hourly work
Bill visits or hours as quantity times rate, on their own invoice or beside a stage.
Consultants, surveys and printing
Pass them on as separate lines so they are not mixed with your fee.
Long projects with many invoices
The customer’s page lists every invoice for that client and what is still unpaid, for you and for them.
The tax, currency and invoice title follow your country. See your country
Getting paid
How architects get paid.
Please find invoice OG/2026/0046 for $2,700.00 from The Openn Group, due on Oct 20, 2026.
invoice.theopenngroup.com/i/7kq2
- Sent by youEmail
- Not viewed yetViewed
Send it yourself
Share the invoice from your own email or any app on your phone. The track turns to Viewed when your customer opens it.
To pay
$2,700.00
How to pay
- Account number
- 000123456789
- Routing no.
- 021000021
Your customer sees how to pay
Each customer gets a page with what they owe and your account number and Routing number, as they are on the invoice.
OG/2026/0046Brew Street Cafe
DuePaid+$2,700.00
10/05/2026 · BREW STREET CAFE/OG-2026-0046
Matched from your bank statement
Match it from your statement
On Pro, upload your bank statement. Dates written like 10/05/2026 are read correctly, and you match each payment in one click.
FAQ
Questions from architects.
How do I show which stage an invoice is for?
Write the stage and the share of the fee in the line description, for example “Concept design, 20% of fee”. It prints on the invoice as you type it.
Can the client see all invoices for the project?
Yes. Each customer has a page with all their invoices and the unpaid total. Share the link once. It opens with a code sent to their email.
Clients often pay part of a stage. Can I record that?
Yes. Record any amount against an invoice and it stays open for the balance.
Can someone else in the practice raise invoices?
On Team (3 people) or Business (10 people), each person has their own sign-in and role.
Have another question? Contact us
Other work
Not quite your line of work?
- DesignersQuote a project, bill it in stages and see which milestone is still unpaid.
- ConsultantsBill retainers, day rates and fixed engagements without building a spreadsheet for each client.
- AgenciesRetainers, project fees and media costs for every client, with one view of who has not paid.
- FreelancersMake a proper invoice in a minute, send it on WhatsApp or email, and know when to nudge.
- DevelopersBill sprints, milestones and support retainers, in your client’s currency.
- PhotographersTake a booking deposit, bill the balance after the shoot and keep prints and albums on the same invoice.
- RecruitersInvoice placement fees, retained searches and contractor hours, and follow up the day a fee falls due.
- ContractorsEstimate the job, take a deposit for materials and bill the rest as the work moves.
- CoachesBill sessions, packages and monthly programmes, and see who has paid before the next session.
- Video studiosQuote a production, take an advance before the shoot and bill crew, kit and edit days line by line.
- IT companiesBill support contracts, projects and licences on time every month, across a team.
Send your next invoice with us.
Free for 5 invoices a month.