Decimal amounts and currency precision are represented in the schema.
Financial operations, held to a higher standard
The books should explain themselves.
Nivium brings receivables, payables, the general ledger, cash reconciliation, close, and reporting into one precise financial system—so account movements retain a clear path back to their economic source.
Private beta · Core GA in preparation
Period control
March close Ready to attest
Invariant sweepClearNamed controls · v1.2.0
Trial balance0.00Functional difference
Ledger through#1482Immutable event cutoff
Close evidenceWhat the system checked
View detail- ✓Postings balance in both currency views
exact - ✓Every event posts in each active book
complete - ✓AR and AP controls equal open items
exact - ✓Completed reconciliations remain current
current
Book balances
Leading bookFunctional
284,910.42Tax bookParallel
284,910.42Attestation ID
att_8d7c…0ae9Unbalanced postings are refused in functional and presentation currency.
Corrections reverse posted records. They do not silently rewrite them.
A hard close retains the checks, versions, actor, and ledger cutoff behind it.
Depth without sprawl
Accounting software asks for trust. Nivium is built to earn it.
Fast entry matters. So do clean reports. But the defining work happens beneath the interface: typed events, exact amounts, per-book projections, immutable corrections, and controls that remain true when nobody is looking at the screen.
Fast where work repeats
Precision should feel quick.
Nivium is designed as a power tool for finance teams. Entry assistance is local, visible, and valid-only—helping you move faster without hiding the accounting decision you are making.
- 01Discoverable keyboard shortcuts on repetitive entry screens
- 02Amount modes, focus flow, and exact local feedback
- 03Auto-balance assistance that never posts on your behalf
AccountDepartmentDebitCredit
6220 Professional servicesOperations12,480.00—2180 Accrued expensesOperations—12,480.002 lines · 1 dimension
Difference0.00Ready
Account transactions
↓ CSV1100 Accounts receivableOpening48,260.00+Movement17,450.00=Closing65,710.00
Date / sourceDebitCreditRunning
Mar 08Invoice · INV-1048
22,400.00—70,660.00Mar 18Receipt · RCPT-0392
—4,950.0065,710.00Source typeCustomer receipt
Source documentRCPT-0392
Accounting bookLeading
Trace, don’t reconcile by instinct
Every number leads somewhere.
Start in account transactions and follow a line to its typed economic source. Source identity is carried with the movement, not reconstructed afterward from a label or memo.
- 01Book-scoped carry-forward and running balances
- 02Typed links back to invoices, receipts, bills, and journals
- 03Deterministic CSV shaped from the same report projection
One focused operating system.
The core accounting loop, cash control, FX, close, and reporting belong together. Nivium gives each of them a clear boundary—and a shared source of truth.
Receivables
Issue and settle invoices, apply receipts and credit notes explicitly, and produce customer statements by transaction currency.
Payables
Record and settle bills, payments and debit notes, and keep vendor activity tied to the payables control account.
General ledger
Work with journals, opening balances, chart administration, dimensions, and per-book posting without losing source identity.
Bank & cash
Import immutable statement evidence, match exact posted movements, and retain the facts behind every completed reconciliation.
FX & multi-book
Freeze dated rate evidence, post to parallel books, and commit period-end revaluation with its exact next-day reversal.
Reports & close
Read financial statements and aging, inspect book-scoped account transactions and typed sources, then close each book with preserved evidence.
Correctness is a product feature
Confidence is useful. Evidence is better.
Nivium treats accounting correctness as a system property. The data model holds exact money, the database refuses broken postings, corrections preserve history, and close evidence records why the period was allowed to close.
Read how the controls workControl register · March 2026All clear
✓
Exact representationDecimal money · currency-scale enforcement
schema 0031✓
Database refusalFunctional and presentation currency totals tie
difference 0.00✓
Immutable correctionReversal linked to the original event
storno exact✓
Close attestationRules, actor, sweep, and cutoff retained
through #1482One event, visible all the way through
The interface is only the beginning.
The same business fact moves through explicit layers, keeping its identity as it reaches each accounting book and every report that reads it.
Business intent
An invoice, bill, receipt, journal, or cash movement states what happened.
Typed transition
A named lifecycle event records who caused the change and when.
Per-book projection
Versioned rules derive exact, balanced lines for each active accounting book.
Traceable output
Account transactions retain typed sources; close evidence retains its invariant manifest and event cutoff.
Built for accountable teams
Different questions. One record.
Finance operators
Move through repetitive entry with explicit shortcuts, preserved focus, visible assumptions, and fast feedback.
Controllers
See open items, bank evidence, per-book period state, FX revaluation, and close attestation in their accounting context.
Reviewers
Follow account movement to its typed economic source and see corrections without erasing posted history.
Technical leaders
Build on a stable JSON API foundation, tenant isolation, narrow privileges, and a verification gate that treats drift as a defect.
Private beta
Build on books you can explain.
Nivium is being readied for Core GA. We are speaking with finance teams that value exactness, auditability, and a focused operating system over suite sprawl.