Outgrown Wave? Bring it with you
Connect your Wave business and Fastbooks copies your customers, products, invoices and estimates across, then brings every balance sheet account into line with Wave, so you pick up exactly where you left off.
Importing is free on every plan. Nothing changes in Wave.
- Accounts 54
- Sales taxes 3
- Customers and vendors 97
- Products and services 41
- Invoices 486
- Estimates 38
How it works
Four steps, no spreadsheets
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Connect Wave
In Fastbooks, go to Settings → Import → Wave and sign in. Pick the business to bring over. Fastbooks only reads, so nothing changes in Wave. Wave only lets businesses on its Pro or Advisor plan connect to other apps.
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See what’s there
Before anything is copied, Fastbooks counts what the business holds and shows its currency.
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Choose how to import
Add to the books you have, or start fresh (you type your organisation’s name to confirm). Your chart of accounts, tax rates, bank accounts and team are kept either way.
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Carry on working
The import runs in the background and we email you when it’s done, with a summary of anything worth a look.
What comes over
From Wave to Fastbooks
Each record lands where it belongs in Fastbooks, so your lists, reports and balances keep working.
Read the full guide to the Wave import| In Wave | In Fastbooks |
|---|---|
| Chart of accounts, customers, vendors, products | The same, including archived ones |
| Sales taxes | Tax rates (a combination like GST plus PST becomes one rate) |
| Invoices | Invoices, with drafts kept as drafts and discounts as a discount line |
| Invoice payments | Payments on their invoice, into the account Wave used |
| Estimates | Quotes |
| Bank and credit card accounts | Bank accounts in Fastbooks |
| Everything else on the balance sheet | One conversion entry that matches each balance to Wave |
Details we sweated so you don't have to
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Balance sheet matches Wave
Wave doesn’t share bank transactions, bills, expenses or journals. So one journal entry on the import date brings every account to Wave’s balance, with the difference in a “Wave conversion balance” account.
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Full invoice history
Every invoice and its payments come across, so you can still look up, resend or chase any of them.
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Your numbering continues
Invoices keep their numbers, and new ones carry on from where Wave left off.
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Foreign currency kept
Invoices in another currency keep their currency and amounts.
What doesn't come over
- Bank transactions, bills, expenses, transfers and journal entries: Wave’s API doesn’t share them. Their effect on your balances is covered by the conversion entry.
- Refunds of invoice payments, as separate records.
- Exchange gains and losses on foreign-currency invoices.
Because of that, profit and loss for periods before the import only shows invoiced income. From the import date on, everything you record in Fastbooks is complete.
After you switch
- Connect your bank → Upload statements on any plan, or turn on live bank feeds with Pro.
- Use it from ChatGPT or Claude → Ask about your books and get work done from your AI assistant. Free on every plan.
- Coming from QuickBooks Online? → Bring your full history over: accounts, contacts, invoices, bills, payments and journals.
FAQ
Questions about the Wave import
Something else on your mind? Talk to our team, we reply within one business day.
Which Wave plans can connect?
Wave only lets businesses on its Pro or Advisor plan connect to other apps. If you’re on Wave’s free plan, you’ll need to upgrade there before you can connect.
Why don’t my old expenses come over?
Wave’s API doesn’t give other apps access to bank transactions, bills, expenses, transfers or journal entries. Fastbooks reads each account’s balance instead and posts one entry so your balance sheet matches Wave on the day you switch.
Does importing cost anything?
No. Importing is free on every Fastbooks plan, including Free. Only owners and admins of the organisation can run it.
Can I import again later?
Yes. Importing again adds only what’s new and leaves records you already imported, and any changes you made to them in Fastbooks, as they are. If an import stopped part way, Start fresh gives you a clean run.
What happens when I disconnect?
Fastbooks gives up its access straight away. Everything already imported stays in your books.
Switch from Wave today
Create a free Fastbooks account, connect your account and let the import do the typing. It runs in the background, and you can import again any time.