The library: answers first, then the detail.
Reference pieces on the questions that surround financial documents: what to keep, how to get records back, and how the paperwork becomes usable rows. Every piece opens with the answer in its first two sentences.
Bank statements
- How long to keep bank statements Keep bank statements for 7 years when they support a tax return, 1 year otherwise. The retention periods that matter, and what banks keep for you. 5 min read
- How long to keep credit card statements Keep credit card statements for 7 years when they support a tax return, about 1 year otherwise. Why cards differ: disputes, warranties, and business use. 5 min read
- Getting bank statements from a closed account Yes, banks can pull statements from a closed account: US banks must keep records 5 years. How to request them, what it costs, and who to call when the bank is gone. 4 min read
QuickBooks
Accounts payable
- Accounts payable automation for small businesses What AP automation actually covers, which of its five stages a small business should automate first, and how to judge a tool without a demo call. 5 min read
- Accounts payable automation around QuickBooks What AP automation means around QuickBooks: invoice capture, PO matching, and approval routing happen before the ledger. Where LedgerBox fits, honestly. 4 min read
- Accounts payable automation before Xero Xero handles bills, approval statuses, and batch payments natively. What AP automation adds before Xero, and the honest CSV route from LedgerBox into it. 4 min read
- Invoice vs receipt: the difference An invoice requests payment before money moves; a receipt proves payment after. What each contains, when one plays both roles, and why the books care. 5 min read
- Purchase order vs invoice A purchase order authorizes spending before it happens; an invoice bills for it after. Who issues which, why the numbers must match, and when POs are optional. 5 min read
- Three-way matching in accounts payable How 3-way matching works in accounts payable: the three documents, what each comparison catches, tolerance thresholds, and a worked example with real numbers. 5 min read
- Invoice reconciliation, start to settled What reconciling an invoice actually checks, the five ways reconciliations break, and a working process that catches duplicates before they get paid. 5 min read
- Invoice management, arrival to archive The invoice lifecycle from arrival to archive, why one intake path beats three, and what a real system adds over a tidy folder of PDF attachments. 5 min read
Bookkeeping
- Outsourced bookkeeping, an honest guide What an outsourced bookkeeper actually does, what stays your job, the real cost drivers, and how to evaluate a provider before handing over the books. 5 min read
- Accounting cleanup, step by step What an accounting cleanup involves, when a business needs one, and the steps for rebuilding months of unrecorded activity into books that reconcile. 5 min read
Tax practice
OCR
- What OCR is, and what it isn't OCR turns images of text into machine-readable characters. How optical character recognition works, where it fails, and why reading is only half the job. 5 min read
- Extract tables from a PDF A decision tree for PDF table extraction: pdfplumber for digital PDFs, Tesseract and pytesseract for scans, and where the DIY approach breaks down. 5 min read
File formats
- What is a QBO file A QBO file is a Web Connect bank file, the QuickBooks flavor of OFX. What it carries, where banks offer it, and how to make one from a PDF statement. 5 min read
- What is an OFX file OFX is the 1997 standard banks use to hand transactions to finance software. How it works, how QFX and QBO relate to it, and what opens an OFX file. 5 min read
- CSV to QBO, and whether you need it at all QuickBooks Online imports CSV directly, so most CSV to QBO conversions are unnecessary. The cases where a QBO file really helps, and what to do then. 4 min read
Document verification
- How to spot a fake bank statement The signals reviewers use to spot a fake bank statement: the running balance chain, typography, PDF metadata, plausibility, and confirmation with the bank. 5 min read
- What document fraud detection software does The five technique families behind document fraud detection software, where each one is strong and weak, and how detection fits lending and screening workflows. 5 min read
AI engineering
- What are embeddings in machine learning Embeddings are numeric vectors that place similar meanings at nearby points, turning similarity into geometry. How they are made, measured, and used. 5 min read
- What is a vector database A vector database stores embeddings with metadata and answers nearest-neighbor queries. How ANN indexes work, pgvector vs dedicated engines, when a flat scan wins. 5 min read
- What is agentic document processing Agentic document processing, defined: what agents add over OCR and IDP, why unattended pipelines need mechanically verifiable output, and where MCP fits in. 6 min read