AI Processing vs Manual Entry

The true cost of typing invoices by hand

Based on average UK accounting practice data · March 2026

The real cost of manual data entry

2–4 min

Average time per invoice

Find supplier, type amounts, allocate VAT, categorise

4–8%

Human error rate

Miskeyed amounts, wrong VAT codes, missed invoices

30+ hrs

Per month at 500 invoices

Nearly a full working week, every month

Process comparison

Manual Entry

  1. 1Open invoice PDF or scan
  2. 2Find supplier in accounting software
  3. 3Type invoice number, date, due date
  4. 4Enter each line item amount
  5. 5Calculate and allocate VAT
  6. 6Choose expense category
  7. 7Save and attach the original PDF
  8. 8Repeat 500+ times per month...

~2–4 minutes per invoice

Distil AI Processing

  1. 1Upload invoices (drag & drop, email, or client portal)
  2. 2AI extracts supplier, date, amounts, VAT, line items
  3. 3AI categorises using two-tier supplier rules
  4. 4Review and approve (or auto-publish high-confidence)
  5. 5Auto-publish to Xero or QuickBooks as drafts
  6. 6VAT return and P&L updated automatically

~5 seconds per invoice

Monthly cost comparison

Manual data entry seems free, but staff time is the most expensive input. Based on UK bookkeeper rates of £12–20/hour.

VolumeManual (staff cost)DistilYou save
100 invoices/mo£50–100£19£31–81/mo
300 invoices/mo£150–300£19£131–281/mo
500 invoices/mo£250–500£59£191–441/mo
1,000 invoices/mo£500–1,000£89£411–911/mo

Based on 2–4 minutes per invoice at £15/hour average bookkeeper rate. Distil Solo (£19/mo) covers 300 pages; Starter (£59/mo) covers 1,500 pages.

More than extraction

Manual entry only gets data into your books. Distil does that and more — in one platform.

AI Categorisation

Two-tier supplier rules that auto-learn from your corrections.

Auto-Publish as Drafts

Known suppliers auto-publish to Xero or QuickBooks. Review and approve new ones.

VAT Returns

Box 1–9 calculations from processed invoices.

MTD ITSA

Quarterly submissions to HMRC for sole traders.

P&L & Cash Flow

Reports generated automatically from your data.

Mileage Tracking

HMRC-approved rates. Auto-creates expense records.

Bank Statements

Upload PDFs, every transaction extracted and categorised.

Bank Reconciliation

Auto-match bank transactions to invoices. One-click reconciliation.

Client Portal

QR code upload links — no app or account for clients.

6-Year Storage

HMRC-compliant document retention in UK data centres.

The hidden cost: errors

Manual entry errors

  • • Transposed digits (£1,234 entered as £1,324)
  • • Wrong VAT rate selected
  • • Invoices missed or entered twice
  • • Wrong supplier or category allocation
  • • Cascading errors into VAT returns

Industry average: 4–8% error rate

AI processing with Distil

  • • OCR + AI reads exact amounts from source documents
  • • VAT automatically detected from invoice data
  • • Duplicate detection prevents double-entry
  • • Supplier rules ensure consistent categorisation
  • • Confidence scoring flags uncertain extractions

95%+ extraction accuracy

Stop typing. Start processing.

Try Distil free for 14 days. From £19/month. Cancel anytime.

See how it works