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v20.6 — released 21 May 2026

The fiscal operating system for your back office.

One control plane for books, compliance, reporting and forensics — run by named senior partners, on a ten-day close cadence, for twenty years. Not software. The practice that turns into one.

Book a partner → See how it runs Onboarding open · Q3 2026
147Active engagements
10dClose cadence, max
20yrsSince v1.0 — 2006
4Sector configs · NP/PRV/PUB/MFG
0Queues between you and a partner
sls.fiscal-os — command palette
⌘K
close period 03 for Northwest Food Bank ↵ to run
CLS Run month-end close — Period 03 · FY26 · ten-day cadence OPS · M. Ellis
REC Reconcile restricted-fund grants — against awards register CMP · R. Halloran ⌥1
990 Prepare Form 990 working papers — functional expense allocations CMP · R. Halloran ⌥2
FOR Run vendor-anomaly forensic sweep — last 90 days FOR · D. Cisneros ⌥3
BRD Build Q3 board financials — audit-ready, partner-signed STR · J. Park ⌥4
↑↓ navigate run ⌘P partner directory ⌘. escalate
connected · partner on call
01 · The system

One control plane
over six departments.

Inputs · your stack
Your GLNetSuite · QBO · Sage · Intacct
PayrollGusto · ADP · Paychex
Bank feedsPlaid · direct connect
Vendor / APBill.com · Ramp · in-house
Donors / grantsSalesforce · Bloomerang
SLS · fiscal-os · core

Senior partner on the rope · every module.

ops/closeM. Ellis
cmp/auditR. Halloran
str/boardJ. Park
for/riskD. Cisneros
sys/erpK. Adair
ldr/execS. Okafor
uptime · 131 / 132 mo.cadence · 10 bd
Outputs · audit-ready
Closed financials10 bd · partner-signed
Board booksquarterly · narrative + figures
990 / tax filingson-time · year-round prep
Audit PBC pack−54% prep hours, y/y
Forensic alertssurfaced inside 48 hrs
02 · Status

The practice, in real time.

Active engagements
147
▲ +9 YoY · net new
Sustainable book size — chosen so every engagement has a named senior partner.
Close cadence held
10bd
131 / 132 months · 99.2%
Missed once · Aug '24. Per the contract, the month's fees were waived.
Audit prep, hours
54%
▼ vs. FY25 baseline
Year-round audit readiness instead of a Q4 fire-drill. Active book, weighted average.
Partner reply, p95
4.8hrs
SLA · 1 business day
Substantive reply, all channels. No queue, no callback in forty-eight hours.
03 · Workflows

Six departments, six workflows.

WF · OPS-01

Operational support

M. Ellis

Daily bookkeeping, reconciliations, AP/AR oversight, payroll, fixed assets and intercompany. The ground we will not give back.

ingest GL reconcile close · 10bd
cadence · monthlybook · 147 activeavg 42 hrs/mo
WF · CMP-02

Compliance & assurance

R. Halloran

Grant & restricted-fund tracking, functional-expense allocations, Form 990, tax compliance, year-round audit liaison.

classify PBC pack file · sign
cadence · year-roundbook · 128 activeavg 31 hrs/mo
WF · STR-03

Strategic guidance

J. Park

Annual budgets, 13-week cash forecasts, board financial presentations, long-range sustainability planning.

forecast board pack present
cadence · quarterlybook · 91 activeavg 14 hrs/mo
WF · FOR-04

Forensic review

D. Cisneros

Risk-focused review, vendor & payment anomaly testing, internal-control walkthroughs, process-improvement.

sweep verify surface · 48h
cadence · continuousFY25 alerts · 23avg 22 hrs/mo
WF · SYS-05

Systems work

K. Adair

ERP & ledger implementation, workflow automation, reporting infrastructure, post go-live support minimum 12 months.

design migrate operate · 12mo
cadence · projectbook · 19 activeavg 36 hrs/mo
WF · LDR-06

Leadership access

S. Okafor

Named partner reachable directly. Board & donor presentations, lender & auditor liaison, standing on the record.

named reachable on the record
cadence · alwaysbook · all 147SLA · 1 bd reply
04 · Sectors

Four sector configs. Same control plane.

NP

Non-Profit

142 active
defaults
Restricted-fund tracking, Form 990, functional-expense allocations
boards
Quarterly donor-ready financials, defensible at audit
materiality
3.0% of total assets · default
filing
4½ months post fiscal year-end
PRV

Private

86 active
defaults
Owner-operator reporting, tax planning, distribution rhythms
family office
23 of 86 · governance & consolidated reporting
returns
214 federal & state · FY25
cadence
Monthly close · quarterly review
PUB

Public

38 active
defaults
SOX-aware controls, quarterly disclosure, audit-readiness held year-round
close
7.8d avg · target ≤ 10 bd
SOX
Full-population testing 3 of 5 years
posture
Year-round · not quarter-end
MFG

Manufacturing

54 active
defaults
Standard costing, inventory recon, intercompany, capex tracking
variance
1.6% avg · < 2% target
recons
216 inventory reconciliations / month
cadence
Weekly inventory · monthly close
05 · Contract

Three clauses. Remedies stated, in writing.

CL-01
90days

Satisfaction window

If the fit is wrong in the first ninety days, put a corrective plan in writing — or walk, no penalty.

remedy · opt-out · no exit fee
CL-02
10bus. days

Benchmark close

Financials tied out, partner-signed, delivered within ten business days of month-end. Every period.

remedy · missed month is on us
CL-03
0queues

Leadership access

Direct partner contact on every engagement. No queue, no junior, no forty-eight-hour callback.

remedy · written; partner-stamped
06 · Get started

Run an install plan with a senior partner.

An hour on the phone. We read what you have — last close, last audit, last board pack — and send a scoped proposal inside two business days. If it's the wrong fit, we say so plainly and recommend someone we trust.

Direct
support@sls.com
847.454.4725
Office
220 N. Smith St., Suite 402
Palatine, IL 60067
Response
1 business day · substantive
2 business days · scoped proposal
Hours
M–F · 7:30a — 6:00p CT
On call during audit & close