Moundi spins up new entities, registers them where you operate, and tracks every recurring filing — federal, state, provincial, international. Auto-generated from your structure. Drafted from your data. Filed by licensed partners. Proven with evidence.
Overview
Execute
Money
Network
Monday, May 18, 2026
Overdue
3
$28,400 risk
Due in 30d
11
$112k est.
Registered
8
of 9 needed
OSS draft
€4,820
Ready Jul 20
Critical · this week
3 itemsCA Sales Tax · Q1 2026
Filed by Aronson · $14,200
DE Franchise Tax · Annual
Awaiting your sign-off · $1,400
WA B&O · Q2 2026
Draft ready · $8,900
Nexus map
Tax pots
Trusted by finance teams at venture-backed SaaS, marketplaces, and global services firms
Tax revenue under management
Jurisdictions covered today
Filings prepared in 2025
On-time filing rate
The problem
Five entities. Thirteen states with sales-tax nexus. A Canadian payroll. A UK VAT registration you forgot about. Your CPA tracks federal beautifully — but the rest lives in spreadsheets, Slack threads, and someone's inbox. One missed BOIR and a state can administratively dissolve your entity. One missed 5471 and the penalty starts at $10,000 per form.
Moundi exists because compliance, at scale, isn't a tax problem. It's an operations problem.
What we hear, every week
"We found out we owed Washington B&O tax for three years during diligence. It cost us $84,000."
Head of Finance, Series B SaaS
"Our CPA does the federal return. The 22 state filings? Honestly, we're never sure."
COO, marketplace, $40M ARR
"I have no idea if my UK subsidiary is current on Companies House. Probably not."
Founder, cross-border services
00 · Spin up new entities
Most compliance tools start once the entity exists. Moundi starts before that. Form a new LLC or C-Corp in any US state — or a Canadian, UK, or Irish entity — directly inside the wizard. We file the certificate, secure the EIN, stand up a registered agent, and the moment it's incorporated, its filing calendar is already live.
Jurisdiction
Country
State of formation
01 · One calendar
From IRS 941s to Canadian T2s to UK Confirmation Statements. Pinned by penalty severity, color-coded by status, filterable by entity or jurisdiction. The ones that can actually dissolve your company — BOIR, 5471, state franchise tax — surface at the top with penalty estimates.
| Period | Jurisdiction | Status | Amount |
|---|---|---|---|
| Q2 2026 | CA · Sales | Draft | $14,200 |
| Q2 2026 | WA · B&O | Ready | $8,900 |
| Q1 2026 | DE · Franchise | Filed | $1,400 |
| Jun 2026 | UK · VAT | Awaiting | £9,400 |
| Q1 2026 | NY · Sales | Overdue | $3,200 |
02 · Auto-generated from structure
Entity type, employees, foreign subsidiaries, where you sell. Moundi computes exactly which forms apply — 1065 vs 1120-S, 941 vs none, 5471 if you own a Canadian sub, BE-13 if you've made an inbound investment — and builds the calendar automatically. No more guessing what year-end checklist your accountant is using.
YTD revenue mapped against economic nexus thresholds
Register within 30 days
Registered · filing Q2
On track
On track
VAT registered
03 · Filings prepared from your data
Connect Stripe, QuickBooks, Mercury, Rippling. Moundi assembles the numbers, drafts the return, hands it to a licensed third-party partner for review and filing. Authority receipts land back in your evidence ledger automatically.
Confirm WA nexus
Renew CA agent
Upload W-9 stack
Draft Q2 OSS return
Reconcile Stripe ledger
5471 schedule
DE franchise sign-off
UK VAT acknowledgment
04 · Tax pots & remittance
When your Stripe payout includes $14,200 of California sales tax, that money is swept into a segregated pot the moment it hits your account. When the filing is due, we remit. You never spend tax money by accident — and you never wonder if you're funded.
Total balance
$182,400
Next remittance
CA Sales · $14,200
Auto-sweep · Jul 20
05 · Ask Moundi
Trained on your entity structure, your synced ledgers, your obligations, and our rulepack. Ask anything: 'Do I owe sales tax in Washington this quarter?' 'What's my 5471 exposure on the Vancouver sub?' Moundi answers with the data and — when you want it — kicks off the workflow.
Yes — your YTD revenue in WA is $96,400, which crosses 96% of the $100k economic nexus threshold. I'd recommend registering within 30 days to avoid back-tax exposure.
I can do this for you:
How it works
Stand up new LLCs, C-Corps, or international entities — filed by partners.
Threshold crossings & obligations the moment transactions land.
Permits, foreign qualifications, VAT IDs — coordinated with partners.
Returns drafted from synced data, ready for sign-off.
Segregated tax pots per jurisdiction, kept above shortfall.
Payments to authorities, executed and receipted.
Filings, payments, and ledger entries matched. No drift.
Evidence pack for every action — exportable any time.
Connections
Native syncs for billing, banking, payroll, and accounting. Read-only by default — we never move money you didn't ask us to move.
Stripe
Billing & sales tax
QuickBooks
Accounting
Mercury
Banking
Rippling
Payroll
Brex
Cards & spend
Xero
Accounting
Shopify
Billing & sales tax
Gusto
Payroll
Modulr
Remittance (UK/EU)
How we compare
| Moundi | DIY (spreadsheets + CPA) | Numeral (sales-tax SaaS) | Avalara (enterprise suite) | |
|---|---|---|---|---|
| Multi-entity calendar across all jurisdictions | — | — | Partial | |
| Covers sales tax, income, franchise, VAT & payroll | Manual | — | Partial | |
| Auto-computed obligations from your corporate structure | — | — | — | |
| Real-time nexus tracking from transactions | — | |||
| Returns drafted from synced ledgers | — | Sales tax | Sales tax | |
| Segregated tax pots & remittance | — | — | ||
| Audit-grade evidence ledger | — | Partial | Partial | |
| Licensed partner network for filing | — | |||
| Live in days, not a 3-month implementation | — | |||
| Transparent flat pricing | Varies | — |
From the field
"Replaced a 47-tab compliance spreadsheet that nobody trusted. The first week, Moundi found two filings we'd missed."
"We went from 'roughly current' to actually current across nine states in one quarter. Diligence took half the time."
"Ask Moundi is the single most useful tool in our finance stack. It answers questions I'd otherwise text my CPA at midnight."
Security & posture
Every action on the platform — sync, draft, file, remit — emits an immutable evidence record. Export to PDF or CSV for diligence packs, board reviews, or year-end audit.
Blockchain-encrypted vault
EINs, registrations, and authority credentials sealed in a per-tenant vault with on-chain integrity proofs.
Partner-executed filings
Licensed CPAs and EAs file with the authority. You sign, they file.
Not a law firm
We make compliance visible. Your partner of record stays of record.
47 jurisdictions
US federal & state, Canada (federal + provinces), UK, EU OSS, more shipping.
Compliance vendors love to overclaim. We'd rather draw the line first — then exceed it.
Tax filings are executed by licensed third-party partners in each jurisdiction. We coordinate the workflow, prepare the evidence, and hand them a clean package. They review, sign, and submit.
We make their work cleaner — synced ledgers, no chasing, no end-of-quarter spreadsheets. Most teams find their accountants quietly become their biggest fans within a month.
Regulation shifts. Thresholds move. New entities spawn new obligations. What we do guarantee: every change is visible, current, and provable — the moment it happens.
Fifteen minutes to map your entity structure. From there, every obligation, every threshold, every dollar of tax owed — visible, current, provable.
No credit card · 14-day pilot · Cancel anytime
