Learn / glossary

Glossary

34 terms. Each one defined in a sentence or two, with a note on why it matters.

Finance and accounting

Accounts payable (AP)
Money a business owes its suppliers. AP automation tools capture invoices, route approvals and pay vendors.
Accounts receivable (AR)
Money customers owe the business. AR tools send invoices, chase payments and forecast collections.
Accrual accounting
Recording revenue when earned and expenses when incurred, not when cash moves. Required for meaningful monthly financials and for most investors and auditors.
Bank reconciliation
Matching every transaction in the ledger to the bank statement so the books reflect reality. AI tools now suggest most matches automatically.
Burn rate and runway
How much cash a company loses each month, and how many months it can keep going at that rate. Startup ledgers such as Puzzle and Digits show both next to the books.
Chart of accounts
The list of categories (accounts) every transaction is coded to. A clean chart of accounts is the single biggest factor in how well AI categorisation works.
Consolidation
Combining the financials of several entities or locations into one set of statements. Painful in spreadsheets, a core feature of multi entity tools.
Days sales outstanding (DSO)
The average number of days it takes customers to pay. Lower is better. AR automation exists to bring it down.
FP&A
Financial planning and analysis: budgeting, forecasting and explaining variances. FP&A tools connect to the ledger and CRM so the model updates itself.
General ledger (GL)
The master record of every financial transaction, organised by account. QuickBooks, Xero, NetSuite and Digits are general ledgers.
Month end close
The process of finalising a month's books: reconciling, accruing, reviewing and reporting. Measured in business days. Three is excellent, ten is common. Read more
Nexus
A connection to a tax jurisdiction that obliges you to collect and remit tax there. Software companies trigger sales tax nexus by revenue or transaction count per US state.
Prepaid and deferred
Prepaid expenses are paid now and expensed over time. Deferred revenue is cash received now and recognised as revenue over time. Both need scheduled journal entries that tools can automate.
SOX controls
Internal controls required of US public companies under the Sarbanes Oxley Act. Approval workflows and audit trails in AP tools exist largely to satisfy them.

AI in finance tools

Auto categorisation
Machine learning that assigns a transaction to an account based on description, counterparty and history. Gets better with corrections and worse with a messy chart of accounts.
Continuous close
Reconciling and categorising every day so month end becomes a review rather than a project. The promise of AI native ledgers.
Data residency and training
Where a vendor stores your data and whether it uses it to train models. Business plans usually exclude training. Check both before uploading client financials. Read more
Exception handling
What happens to the items automation cannot resolve. Good tools queue them for a named person with context; bad tools bury them.
Human in the loop
A workflow where a person reviews or approves AI output before it takes effect. The right default for anything that posts to the ledger or pays money.
Large language model (LLM)
The kind of AI behind ChatGPT, Claude and Gemini. In finance tools it drafts memos, answers questions about the data and explains variances. It does not replace the arithmetic in the ledger.
Optical character recognition (OCR)
Turning a receipt or invoice image into text. The older layer under every expense and AP tool; modern extraction adds a model that understands layout and meaning.
Straight through processing rate
The share of invoices or transactions handled end to end with no human touch. The honest metric for AP and bookkeeping automation. Ask vendors for it after the first 90 days, not at the demo.

Missing a term or disagree with a definition? Tell us. Corrections go live within 48 hours.