Mac · iPhone · iPad
Susa Books
Bookkeeping that stays yours
Write down money in and money out in plain words. Susa does the accounting, sends your invoices and works out the figures for your tax return. Pay once, no subscription, and your books stay in your own iCloud.
One purchase covers your Mac, iPhone and iPad. No subscription, no in-app purchases, no account. Updates, including each year's new tax rules, through 2032.
Private by architecture
Your books are nobody's business but yours.
Online bookkeeping keeps your income, your customers and your receipts on someone else's server, for a monthly fee. Susa has no server. Your books are on your Mac, iPhone and iPad and in your own iCloud Drive, and that's where they stay.
There is no account to create. Choose your country, name your business, and start.
In plain words
Money in, money out. That's it.
Write down what came in and what went out. Susa suggests the category, works out the sales tax inside the amount, and does the double-entry accounting for you, out of sight.
Import your bank statement (CSV, OFX or QFX) and Susa recognises what is already in the books.
Invoices
Invoices that get paid.
Make an invoice with your logo in a minute, in the wording your country requires, and share the PDF. Susa records the sale, shows who still owes you, and clears the invoice when the payment shows up in your bank statement.
Credit notes, reverse charge for EU business customers, VAT number checks with the EU's VIES, and Italy's FatturaPA e-invoice are built in.
Receipts
Snap a receipt. Susa reads it.
Photograph a receipt with your iPhone. Susa reads the date, the total and the tax on the device itself and fills in the form. The photo is kept with the entry, ready for your accountant.
Nothing is uploaded anywhere to read it.
Rules for where you live
The figures your return needs.
Canada
T2125 for sole proprietors, GIFI and T2 figures for small corporations, and your GST/HST return. Quebec's QST is not supported yet.
United States
Schedule C, self-employment tax, quarterly estimated payments, and sales tax tracking.
United Kingdom
Self Assessment figures for each quarter and the year, and your VAT return. Sending them to HMRC through Making Tax Digital comes in an update once HMRC approves Susa.
Australia
Business schedule figures and GST for your BAS.
Europe
Income tax figures and VAT for Ireland, Germany, the Netherlands, France and Italy; books and VAT for the other EU countries. Spain arrives in 2028.
Updated every year
Tax rates change. Each year's rules come with a free update, checked against the official government sources.
Made for iPhone Duo
Open it up. Susa spreads out.
On iPhone Duo, unfold and Susa uses the whole display: your list of transactions or invoices on the left, the entry, invoice or setting beside it on the right. Fold it again and it is the iPhone app you know.
iPad gets the same two-column layout, and the Mac has its own full app. One purchase covers all of them.
Ask
Ask about your own numbers.
“How much did I spend on software this year?” The assistant answers from your books with Apple Intelligence on your device.
Every due date sits in one calendar, and in Canada, the UK and Germany Susa reads the tax authority's news and picks out what affects you.
Specifications
- Platforms
- Mac, iPhone and iPad, made for iPhone Duo; macOS 27 and iOS 27 or later
- Price
- $29.99 once — no subscription, no in-app purchases
- Account required
- None
- Sync
- Your own iCloud Drive
- Data collected
- None
- Countries
- Canada, US, UK, Australia and the EU (Spain from 2028)
- Languages
- English, German, French, Spanish, Italian, Dutch
- Updates
- Through 2032, including each year's tax rules
What's new
Susa Books 1.1 · Company papers, repeating transactions and the Susa Guide
- Company papers: keep your incorporation certificate, registrations, insurance and other papers with your books. Susa lists what a business like yours should have on file and reminds you before anything needs renewing.
- Repeating transactions: say once that a bank fee or subscription repeats. Susa shows it on its date, ready to record with one click. It never records anything by itself.
- Bills in another currency: enter what left your account and the bill as it was; Susa works out the sales tax actually charged at your bank’s rate.
- Paid in advance: a year of insurance or money on a store card, with each cost landing in the right month.
- Receipt dates: a new entry takes the date on its receipt, and Susa tells you when the two disagree.
- The Susa Guide: short how-to articles for your country and kind of business, on Mac, iPhone and iPad.
- The assistant remembers the conversation and works out what a purchase would do to your tax. Use Apple Intelligence on your device, or Claude with your own API key.
- For corporations: a question about issued shares, and the small business limit prorated for a short first year.
- A second device waits for your books to arrive from iCloud instead of offering to set up again.