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For accounting and CA firms

Spend your hours on judgment, not matching

NexaSI does the reading, keying and matching for your clients' books. Your team reviews the exceptions it finds and gives the advice clients actually pay for.

Apply as a design partner

Live today with Xero, Zoho Books, ApprovalMax and Microsoft 365.

A bank reconciliation kept in a spreadsheet, with four rows that do not agree.
InvoiceSupplierBooksBankDiffStatus
PM-1190 Pinecrest 12,480.00 12,480.00 — Matched
PM-1191 Pinecrest 3,215.50 3,215.50 — Matched
KS-0442 Kestrel 8,940.00 8,040.00 900.00 Check
HL-7781 Halden 21,300.00 21,300.00 — Matched
KS-0443 Kestrel 1,775.25 — 1,775.25 Not in bank
PM-1192 Pinecrest 6,420.00 6,420.00 — Matched
HL-7782 Halden 9,115.80 9,115.80 — Matched
KS-0444 Kestrel 14,260.00 14,620.00 -360.00 Check
PM-1193 Pinecrest 2,980.00 2,980.00 — Matched
HL-7783 Halden 5,540.00 — 5,540.00 Not in bank
PM-1194 Pinecrest 18,075.40 18,075.40 — Matched
HL-7784 Halden 11,902.65 11,002.65 900.00 Check

What changes for your team

  • Invoices and statements

    Read and keyed automatically from each client's inbox, instead of downloaded, opened and typed in.

  • Bank and payment matching

    Done every day, with the unmatched items listed and explained.

  • Client queries

    Answered from the email trail: who said what, when, and with what proof.

  • Month-end

    Starts from a short exception list rather than a full re-check.

Exceptions your clients will thank you for

Each flag explains itself in plain English, so you can pass it to a client without rewriting it. Source data is never changed behind anyone's back. Pick a client to see their morning.

Property management

Xero · UK · exceptions this morning

3 to review
  • Held

    Pinecrest PM-1190

    Already paid on 12 Sep. Held before the payment run.

    £7,343.66

    Keep on hold
  • Drafted

    Halden Logistics

    Waiting on 3 missing POs. Reply drafted for your review.

    £40,100

    Review reply

Facilities services

Xero · UK · exceptions this morning

3 to review
  • Needs proof

    Kestrel Hospitality, INV-2026-0388

    Client says it paid on 12 Sep. Nothing in the bank.

    £9,400

    Ask for remittance
  • Chase

    Arden Property Services, INV-2026-0451

    Second approver out of office since 2 Sep.

    £7,050

    Send chaser
  • Books ≠ bank

    Meridian Foods

    Supplier balance in the books does not match the bank.

    £28,820

    Explain

Restaurant group

Zoho Books · India · exceptions this morning

2 to review
  • Explained

    Nilgiri Foods Pvt Ltd, invoice 812

    GSTR-2B says ₹1,19,271, books say ₹1,12,400. The bill in books is missing the freight line.

    ₹6,871

    Fix the bill
  • Not booked

    Vasant Logistics, invoice 903

    In GSTR-2B but not booked. Input credit is at risk until the bill is recorded.

    ₹54,000

    Book the bill

Construction firm

Xero · UK · exceptions this morning

3 to review
  • Explained

    Brackley Groundworks, INV-2026-0217

    Invoiced £10,000 and £8,000 arrived. Not a short payment: 20% CIS was deducted.

    £2,000

    Record CIS
  • Chase

    Harlow Build Ltd, retention

    5% retention due for release since practical completion. Not yet requested.

    £3,250

    Request release
  • Held

    Fenwick Plant Hire, HIRE-3381

    The same invoice arrived by email and by post. The second copy is held.

    £1,840

    Keep on hold

Online shop

Zoho Books · India · exceptions this morning

3 to review
  • Explained

    Razorpay settlement, 14 Sep

    Payout of ₹1,18,420 against ₹1,24,900 in orders. The gap is gateway fees, GST on fees and two refunds.

    ₹6,480

    Post the fees
  • Paid twice

    Customer refund, order 50317

    Refunded twice: once through Razorpay and again by bank transfer.

    ₹3,299

    Recover
  • Credit blocked

    Shree Packaging, invoice 2241

    ₹18,000 invoice missing from GSTR-2B: the supplier hasn't filed it. The input credit waits until they do.

    ₹2,746

    Chase supplier

Recruitment agency

Xero · UK · exceptions this morning

3 to review
  • Short paid

    Northgate Logistics, INV-2026-0533

    Client paid for 37.5 hours at £27.50. The approved timesheet says 40.

    £68.75

    Send timesheet
  • Wrong rate

    Calder Health, INV-2026-0541

    180 hours billed at last year's £24.00 rate. The agreed rate is now £26.50.

    £450

    Reissue invoice
  • Needs proof

    Ashby Foods, INV-2026-0498

    Says remittance was sent on 3 Oct. Nothing in the bank.

    £12,600

    Ask for remittance

The design partner programme

We're working with a small number of firms to shape how NexaSI fits into practice life, starting with tools that let you see every client's exceptions in one place.

Apply as a design partner

What partner firms get

  • Early access for your clients, with onboarding done with you
  • Leakage audits for selected clients, run together
  • A referral or reseller arrangement agreed with each firm
  • A direct line to the product team and a say in the roadmap

What we ask

  • Two or three clients willing to try it
  • Honest feedback, about an hour a month
  • Permission to share results, if you're happy with them

  1. Within two working days

    Apply as a firm

    Tell us about your practice. We reply to book the first call.

  2. 20 minutes

    A call about your practice

    Which clients, ledgers and inboxes you work with, and which two or three clients could try it.

  3. Two weeks

    Leakage audits for selected clients

    NexaSI runs on each client's real data, and you review what it finds together with us.

  4. About an hour a month

    Shape the product

    Honest feedback on what helps your team, and a say in what we build next.

Questions from firms

Does this replace our bookkeeping service?

No. It removes the keying and matching. The review, the judgment and the client relationship stay with you.

Who owns the client relationship?

You do. We work through you for every client you introduce.

Which accounting systems do your clients need?

Xero, Zoho Books, Tally and SAP. See the integrations page for the full list.

Is it available for CA firms in India?

Yes, in early access, including GST reconciliation against GSTR-2B. See NexaSI in India.

Find out what your inbox is hiding

Book a free leakage audit See how it works

Your leakage audit

  1. 1Reads your inbox
  2. 2Checks books and bank
  3. 3Shows you the money
  • Already paid Pinecrest PM-1190 £7,343.66
  • Says paid Kestrel, not in the bank £9,400
  • No bill Payments with no bill 15 of 52
Money caught £16,743.66