Sales Tax / VAT / GST Filing
Indirect tax registration, calculation, and filing across major jurisdictions.
What we deliver
We handle sales tax, VAT, and GST registration, calculation, and filing so your indirect tax obligations stay current in every market.
We manage indirect tax compliance across US sales tax, UK and EU VAT, Canadian GST and HST, and Australian GST. Our team determines nexus and registration thresholds, sets up tax engines and exemption certificate handling, prepares returns, and files with the IRS state agencies, HMRC, CRA, and ATO on your schedule. We map products and services to the right tax codes, validate transaction data from your ERP or commerce platform, and reconcile collected tax to remitted tax each period. When jurisdictions change rates or rules, we update your systems and document the impact. We also support reverse charge, place-of-supply analysis, and digital services rules under OECD guidance. If you receive notices or are selected for audit, we respond on your behalf with full workpapers and supporting documentation. The goal is accurate, on-time filings that scale with your sales footprint.
Built for teams like yours
Who it's for
- Ecommerce and SaaS companies selling across borders
- Multi-state US sellers crossing economic nexus thresholds
- UK and EU sellers managing VAT and OSS schemes
- Canadian and Australian businesses with GST or HST obligations
- Finance leaders facing growing indirect tax complexity
Pain points we solve
- Uncertainty about where to register and collect
- Missed filing deadlines and late payment penalties
- Inaccurate tax codes on products and services
- Backlog of exemption certificates
- Notices and audits from tax authorities
Capabilities
Everything we cover in this engagement.
- Nexus and threshold analysis
- Registration with state, provincial, and national authorities
- Tax engine configuration and code mapping
- Exemption certificate management
- Return preparation and filing
- Reconciliation of collected to remitted tax
- Notice response and audit support
- Rate and rule update monitoring
Our process
A clear, predictable path from kickoff to outcomes.
Assess
Review sales footprint, products, and current registrations.
Register
File registrations in required jurisdictions.
Configure
Set up tax engine, codes, and exemption handling.
File
Prepare and submit returns on each due date.
Reconcile
Match collections to remittances and resolve variances.
Deliverables & outcomes
What you get
- Nexus and registration roadmap
- Tax code mapping by product or service
- Filed returns and payment confirmations
- Reconciliation workpapers each period
- Exemption certificate library
- Audit response files when needed
Outcomes you can expect
- On-time filings in every registered jurisdiction
- Accurate tax collection at point of sale
- Lower penalty and interest exposure
- Clean audit trail for collected tax
- Confidence to expand into new markets
What clients say
Our old site was a Frankenstein of three previous agencies. We gave them a hard launch date tied to a trade show and they actually hit it. 47 templates, full product catalog migration, no broken redirects on go-live day. Our previous vendor missed the same deadline twice. This time my phone stayed quiet on launch morning.
Holiday season was about to break us. We needed 22 agents in six weeks and our internal hiring pipeline could not move that fast. They staffed it, trained on our tone guide, and ran nesting alongside our senior reps. CSAT actually went up by three points during peak. First Q4 in four years my support lead took her vacation.
Related case studies
12 locations on one stack, 14-day close cut to 5
Centralized bookkeeping across 12 clinics. Close cycle from 6 weeks to 6 days.
Read story Regulated FinTech operating in UK and US-EastKYC review cut from 5 days to 4 hours
AI-assisted KYC pre-screening cut onboarding from 5 days to 4 hours.
Read storyYou may also need
Corporate Tax Preparation & Filing
Federal, state, and provincial corporate income tax returns prepared and filed.
We prepare and file corporate income tax returns under IRS, HMRC, CRA, and ATO rules with full workpapers and provision support.
ExploreIndividual Tax Returns
Personal income tax returns prepared and filed for executives and owners.
We prepare and file individual income tax returns under IRS, HMRC, CRA, and ATO rules, including equity compensation and cross-border items.
ExploreInternational Tax Compliance
Cross-border tax compliance, treaty analysis, and disclosure reporting.
We handle international tax compliance including treaty positions, transfer pricing documentation, and required cross-border disclosures.
ExploreFrequently asked questions
Quick answers to the questions we hear most.
Do you handle US economic nexus tracking?
Can you file VAT under the OSS or IOSS schemes?
What if we already received a tax notice?
How do you manage exemption certificates?
Do you support digital services and SaaS rules?
Need help with sales tax, VAT, or GST?
Speak with our indirect tax team about your filings and exposure.