Invoice Diary — slim-v1

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invoice diary.

Ditch the shoebox.

Log a day's work in seconds. Get an invoice out the other end.

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About you

1 of 2

Just the essentials. Other bits are added when you need them.

Your name *

Business name *

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Set your PIN

2 of 2

Protects your data on a shared device.

PIN set: 1234

(You can also use Face ID)

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✓

You're all set

Log your first day in seconds.

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invoice diary.

Settings restart

Good morning

Mon 14 April

Mon 14 Apr Close

Ready to invoice

Log a day to get started.

Create invoice ›

£0

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Ready to invoice

Pick the client you’re billing. One invoice per client.

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Select days

All

Tap days on the calendar to include them on this invoice.

April 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Selected

£0

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Invoice preview

Your business name

Your name

INVOICE

No. —

Billed to

—

Total £0

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Settings

Your details

Name, business + invoice header

›

Manage sites

—

›

Manage clients

—

›

PIN & security

Change your PIN

›

Export / import data

Move your data between browsers

›

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Log a payment

Record a payment you’ve received. Enter the amount + date, then tick which invoiced sessions the payment covers. Ticked sessions flip from awaiting payment to paid.

Amount received

Date

Method (optional)

Applies to

Ticked sessions total

£0.00

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Export / import data

LocalStorage is scoped per URL, so data in Live Preview doesn’t appear in your regular browser (and vice versa). Copy the JSON below, paste it in the other browser’s version of this page, and tap Import & reload to sync.

Current data (JSON)

Import overwrites everything in this browser’s storage and reloads the page.

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Your details

Save

Used at the top of every invoice.

Your name *

Business name *

Address line 1

Address line 2

Town / City

Postcode

Phone

Website

UTR (Unique Taxpayer Reference)

VAT number

Bank details (for invoices)

Invoice appearance

Business logo

+ Upload logo

PNG or JPG, ideally under 200 kB. Appears top-left of every invoice.

I work from a single location Skips the “Where” step when logging and hides site names on invoices.

Charge VAT on invoices Invoice shows Subtotal, VAT and Gross total when on.

Next invoice number (so your numbering doesn’t clash with another accounts package)

Invoices will be tagged like 2026-04-16-PG-0014.

Invoice footer (legal info)

Trading as (optional)

Company number (optional)

Registered address (optional, if different from above)

Payment terms (appear lower-left of the invoice)

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Manage sites

+ Add

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‹ Cancel

Edit site

Site name

Address

Person at site (optional)

Default client (optional)

Default hourly rate (optional)

£ / hr

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Manage clients

+ Add

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‹ Cancel

Edit client

Client name

Billing address

Postcode

Contact

Edit log

Cancel

Site name

Address (optional)

Name (person at the site)

What you did

Bill the person at this site The name above (and the site address) gets the invoice

Hours

Hourly rate

£ / hr