// for accountants & bookkeepers

The shoebox, already sorted

Stop spending qualified hours cleaning up statements. Your musician, DJ and creative clients arrive with a reviewed Excel accountant pack and a row-level CSV of every included income and expense, instead of a carrier bag of PDFs: first-pass sorted, every included decision visible. You keep the judgement and the client relationship.

// what lands in your inbox

One accountant pack per client, per period

Each export is a four-tab Excel accountant pack: a cover with reconciliation and review flags, filterable Expenses and Income tables, and an SA103 category guide. A matching row-level CSV of the kept business transactions comes with it for practice imports. It supports selected UK tax years and standard MTD update periods beginning on 6 April. Calendar update periods are not yet supported.

Categorised for their trade

  • Equipment, studio time, distribution, plugin subscriptions, PRS/PPL and label income, recognised by name
  • Income split across royalties, performance fees, streaming, teaching and platform payouts
  • Clients can reuse a merchant decision when appropriate, with the final category and claim share visible on every row

The judgement calls, pre-declared

  • Mixed-use costs (vehicle, phone, home) carry an explicit claim % per line, no silent 100% claims
  • Tax-year-specific car and van mileage: 55p for the first 10,000 miles from 2026/27, 45p before that, and 25p thereafter, with a vehicle-cost conflict warning
  • Accounting method recorded explicitly. Under traditional accounting, larger equipment is separated for review. The £500 level is a product review trigger, not a tax threshold

Mapped to your working papers

  • Per-category totals and an SA103F category guide for the selected tax year and accounting setup
  • Standard MTD update-period breakdown on 6 April cycles, cumulative and annual. Calendar update periods are disclosed as unsupported
  • Cash-basis exports include a fixed-cell MTD filing tab: the SA103F figures at constant cell addresses, so a compatible digitally linked workflow (for example a bridging template added to the same workbook) can reference them by formula. The whole pack recalculates from the ledger tabs, the filing cells included, so you can adjust a category or claim percentage and what a bridge reads follows your edits. Figures are checked at export; changes after that are yours, and edits in the workbook do not update Cratebooks, so corrections that should persist belong there too
  • Recognised internal transfers and card-bill payments excluded on both sides, with anything suspicious flagged before export
// before it reaches you

Common issues flagged before handover

Cratebooks runs an automated pre-export sense-check and asks clients to confirm that all accounts, off-bank records and the correct trade are included. It does not replace professional judgement.

Usually disallowable, flagged

  • Fines and penalty charges that require tax-treatment review
  • Card-bill payments and own-account transfers counted as expenses
  • Likely duplicate rows from overlapping statements

Needs evidence, flagged

  • Cash withdrawals kept without receipts behind them
  • Mixed-use bills claimed at the full 100%
  • Mileage claimed alongside actual vehicle running costs

For your judgement, noted

  • Larger equipment separated for review when traditional accounting is selected
  • Uncategorised-but-claimed spend totalled for Box 30
  • Accounting basis, tax period and review notes included in the export
// a taste of the file

A file you can actually use

The accountant pack contains an Excel summary workbook plus a row-level CSV of the kept business transactions. Here is what a period looks like: every included line labelled, claim shares explicit, uncategorised claims surfaced, review flags visible and category totals summarised.

 cratebooks-client-2026-27-to-q1.xlsx + ledger.csv
DateMerchantCategoryAmountClaim %Claimed
04 MayPioneer DJEquipment£420.00100%£420.00
09 MayPirate StudiosStudio£46.00100%£46.00
15 MayShellVehicle£60.0050%£30.00
22 MayThomann reviewEquipment£1,200.00100%£1,200.00
28 MayTrainlineTravel£44.30100%£44.30
SA103F category guide, confirm the correct form
Box 20  Car, van and travel expenses£1,984.30
Box 21  Rent, rates, power and insurance£820.00
Box 30  Other business expenses£2,110.00
Sample data. Every export records the accounting basis and uses standard 6 April MTD update periods.
// the questions you would ask

Straight answers

Do we need access to the client's bank?

No. Cratebooks never receives bank login credentials. PDF and CSV statement files are read in the client's browser; only the extracted transaction records are saved to their account.

Who did the categorisation?

Cratebooks makes the first pass; your client reviews and confirms every kept transaction. The export shows the outcome per row: category, claim share and any review flag. Nothing is silently claimed.

Can I amend a transaction?

In the workbook, yes: change a category or claim percentage on the ledger tabs and the Summary and SA103 guide recalculate. The filing cells stay as exported, so if the source needs correcting for HMRC, your client amends it in Cratebooks and re-exports in minutes. Re-importing the same statement is safe and deduplicated.

Is there an audit trail?

The export records the accounting basis, tax period, review notes and your client's completeness confirmations. Every row shows the decision made on it, plus the original statement description and source account alongside the cleaned merchant name. What you receive is what they confirmed.

What if records are incomplete?

Before export, your client confirms all accounts and off-bank records are included for the trade. The automated check flags duplicates, cash and mixed-use claims, but it cannot see an account it was never given. The confirmation is written evidence of what your client told us was complete. It does not, and cannot, displace your own professional or contractual responsibilities.

How does it fit our existing software?

Cratebooks prepares the client's records before they enter your normal workflow; the pack arrives as ordinary Excel and CSV files, with no practice migration and nothing to roll out. It is built to be worked from: the Summary, category totals, SA103 guide and the MTD filing tab all recalculate from the ledger tabs, categories are dropdowns and claim percentages are editable, so adjustments behave like any other working paper. For cash-basis clients the MTD filing tab keeps every SA103F figure at a fixed cell address, so a bridging template added to the same workbook can reference them by formula, which is designed to support HMRC's digital-link requirements. Confirm the treatment for your practice. Two boundaries to know: figures are checked at export, and changes made after that, plus anything filed from them, sit with whoever makes them; and workbook edits do not flow back into Cratebooks, so a correction that should persist into future exports needs making there too.

// work with us directly

Onboard your first client with us

We work with a small number of practices at a time, hands-on. Your first clients are set up free, the founder walks you and each client through the handover personally, and practice terms are agreed before anything is charged.

How it works

  • Free Cratebooks accounts for your first clients
  • Founder-led onboarding for you and each client
  • Priority support through the first completed period
  • Practice terms agreed before anything is charged

One completed update period or eight weeks, whichever comes first. Nothing renews automatically; you decide what happens next.

The one condition

Start with a genuinely messy creative client, not a tidy one, and tell us plainly what the handover gets right and wrong. If the first client earns a second, we are doing our job.

Fewer shoeboxes. Better clients.

Cratebooks costs your client £39 a year and reduces the transaction-sorting work before the file reaches you. You keep the judgement, adjustments and filing work.

Work with us

Want to review the artefact first? Download the sample export: a categorised Excel workbook with an SA103F guide, plus sample data.