AI bookkeeping assistant for small business: what to automate first
An AI bookkeeping assistant pulls invoices and receipts from your inbox, extracts the fields (date, supplier, net, VAT, total, category) into a spreadsheet, flags low-confidence or duplicate items, and emails you a weekly spend summary. It prepares the books; it doesn't decide tax treatment or make payments. Options range from $19/month (PlugStaff, in your Gmail and Sheets) to dedicated tools like Dext from $25.21/month billed annually.
What to hand over first
| Task | Automate? | Note |
|---|---|---|
| Collecting invoices from email | Yes | The most tedious step and the easiest to automate |
| Extracting fields from PDFs and photos | Yes, with review flags | Low-confidence totals go to a person |
| Duplicate checks | Yes | Same supplier + invoice number: flagged in the weekly summary and left out of totals |
| Categorising spend | Yes, as a suggestion | Your accountant's categories, not the model's |
| VAT/tax treatment | No | Accountant or you |
| Paying suppliers | No | Never automate payments from AI output |
Tools compared
| Option | Price (published) | Where data lives | Fits |
|---|---|---|---|
| PlugStaff AI Bookkeeper | $19/month + your AI usage | Your Gmail, Google Sheets, n8n | Owner-run businesses that want a clean expenses sheet for their accountant |
| Dext Business | $31.50/month, or $25.21/month billed annually | Dext, syncs to accounting software | Businesses whose accountant already uses Dext |
| Your accounting software's built-in capture | Varies by plan | The accounting software | Teams already on Xero/QuickBooks plans that include it |
Honest take: if your accountant works in Dext or Xero, use what they use. The PlugStaff AI Bookkeeper is for owners who just want every invoice out of the inbox and into one sheet, checked, without another platform.
Setup
- Create a Gmail label (e.g. "Invoices") and a filter for supplier emails.
- Import the workflow and the Expenses sheet template. Follow the AI Bookkeeper setup guide.
- Set your home currency and categories in Config.
- Check the
needs_reviewrows each week; send the sheet to your accountant monthly.
Time saved (estimate)
At the inputs on the AI Bookkeeper page (120 documents a week, 4 minutes each by hand vs 1 minutes to check), about 5.4 hours a week. Estimate, not a measured result.
FAQ
Can AI do my bookkeeping?
It can do the data entry: collecting invoices, extracting fields, checking duplicates and summarising spend. Tax treatment, reconciliation decisions and payments should stay with you or your accountant.
How accurate is AI invoice extraction?
Clean PDFs extract reliably; photos and unusual layouts less so. That's why the PlugStaff AI Bookkeeper flags low-confidence fields for review instead of guessing.
What does an AI bookkeeping assistant cost?
PlugStaff's AI Bookkeeper is $19/month plus your AI usage. Dext's business plan is $31.50/month, or $25.21/month billed annually (October 2026).
The AI Bookkeeper is this workflow, tested and ready to import, with a setup guide (about 15 minutes on n8n Cloud). $19/month on Starter, 7-day free trial.