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15 MIN DELAYED market data · source + timestamp on hoverFTSE 100 8,214▲GBP/USD 1.2731▼EUR/GBP 0.8442UK Bank Rate 4.75%SONIA 4.70%GBP/EUR 1.1846REGNEXUS BOOKS — Know what happened. Know what happens next.GENESIS — Build. Authorise. Operate. Grow.SAFEGUARD — Safeguarding governance and controlLUMEN — Run learning at scaleREGNEXUS MAIL — Business communication infrastructure15 MIN DELAYED market data · source + timestamp on hoverFTSE 100 8,214▲GBP/USD 1.2731▼EUR/GBP 0.8442UK Bank Rate 4.75%SONIA 4.70%GBP/EUR 1.1846REGNEXUS BOOKS — Know what happened. Know what happens next.GENESIS — Build. Authorise. Operate. Grow.SAFEGUARD — Safeguarding governance and controlLUMEN — Run learning at scaleREGNEXUS MAIL — Business communication infrastructure
Compare

Compare RegNexus Books with the systems businesses start with, outgrow, or get trapped inside.

RegNexus Books is not just bookkeeping software. It is a deterministic financial-control platform that helps businesses know what happened, know what happens next, control what happens, and prove what is true. Every comparison below is positioning based on public information, with a review date — we acknowledge where each competitor is strong.

Small business accountingThe systems businesses start with.
Small business accounting

vs QuickBooks

Best for: Familiar small-business bookkeeping, invoicing, VAT and reporting.
Where it strains: When you need answers not reports, governed corrections, and point-in-time truth.
Why Books is different: Books prevents financial mistakes before they hit the ledger.
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Small business accounting

vs Xero

Best for: A broad, app-connected accounting ecosystem with strong accountant adoption.
Where it strains: When core controls shouldn't depend on stitching together many apps.
Why Books is different: Xero is an ecosystem; Books is a control system.
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Micro / freelancer

vs FreeAgent

Best for: Freelancers, contractors, landlords and micro-businesses wanting simple UK accounting + MTD.
Where it strains: When finance becomes organisational: multiple approvers, entities, forecasting.
Why Books is different: FreeAgent is built for simplicity; Books is built for control at scale.
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Growth-stage finance systemsThe systems businesses outgrow.
SME → mid-market

vs Sage

Best for: A broad portfolio from Sage Accounting to Sage 50 to Sage Intacct.
Where it strains: System complexity and reliance on user interpretation; desktop heritage.
Why Books is different: Sage is a portfolio; Books is one focused, modern control architecture.
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Mid-market / ERP alternativesThe systems businesses get trapped inside.
AI-native ERP

vs Rillet

Best for: Modern, AI-native ERP for scaling finance teams — real-time books, automated close.
Where it strains: AI works directly on the GL; the truth boundary is model-driven.
Why Books is different: Rillet modernises ERP; Books rethinks financial truth itself.
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Legacy ERP

vs Traditional ERP

Best for: Deep, configurable enterprise processes across large organisations.
Where it strains: Complexity, long implementations and heavyweight configuration.
Why Books is different: Controlled power without the traditional ERP burden.
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The same task. A different system.

Pick a competitor to see cash questions, corrections and temporal queries side by side.

See vs Rillet →