US Bookkeeping. Done right.

We’ll sort the mess, catch missed deductions, and keep you IRS-ready, so you can finally breathe easy and focus on growing your business

At Zmartly, we transform chaotic financial records into organised, actionable insights for global small businesses. Our professional bookkeeping services eliminate the stress of tracking expenses, reconciling accounts, and preparing for tax season.

  • 4.9 Google · 56 reviews
  • ACCA-qualified
  • 30-day money-back
Manhattan skyline at dusk
Our expertise covers

Everything in this service, in one bill.

  • 01

    Financial Clarity

    Transform confusing statements into clear, actionable reports that show exactly where your business stands

  • 02

    Tax Optimisation

    Identify all legitimate deductions, avoiding costly overpayments to the IRS

  • 03

    Compliance Confidence

    Stay audit-ready with properly maintained books and documentation

  • 04

    Time Reclamation

    Free up to 5-10 hours weekly spent managing receipts, invoices, and spreadsheets

  • 05

    Decision Support

    Access real-time financial insights to make informed business moves

  • 06

    Peace of Mind

    Eliminate the constant worry about missed deadlines, errors, or overlooked obligations

Why it pays off

What you actually get.

  • Growth Facilitation

    Build a solid financial foundation that supports funding, expansion, and long-term success

  • Clarity & Compliance

    Reliable bookkeeping for clearer financial insights and stress-free tax seasons.

  • Expert Support

    Dedicated bookkeeping team familiar with your business and industry requirements.

  • Time-Saving Tools

    Automated data pulls, reconciliation, and intuitive dashboards that save you hours every week.

  • Integrations

    Seamless connections with QuickBooks Online, payroll (Gusto), and expense cards (Ramp, Brex).

  • QuickBooks Online

    We connect via secure API to import invoices, expenses, and bank feeds automatically for up‑to‑date financials.

How we deliver

Four steps from first call to filed.

  • 01

    Discovery

    Understanding your business needs.

  • 02

    Solution Design

    Crafting your custom accounting strategy.

  • 03

    Onboarding

    Quick and easy integration.

  • 04

    Regular Rhythm

    Consistent monitoring and reporting.

Trusted by leading innovators
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Common questions

Frequently asked questions.

QuickBooks Online is our primary platform - we integrate via secure API for bank feeds, invoicing, and reporting - and it suits 90% of US small businesses. For clients on Xero, Wave, FreshBooks, or NetSuite we can either run the books in-platform or migrate the file to QBO at no charge during onboarding.

Monthly review against Schedule C categories (sole prop), 1120-S (S-Corp), or 1120 (C-Corp) so legitimate deductions - home office, mileage, professional services, software, depreciation, Section 179 - are categorised correctly the first time. Most new clients show 8-15% in previously missed deductions in the first quarter of cleanup.

Bank and credit card feeds direct into QBO, payroll sync with Gusto or ADP, expense cards from Ramp or Brex, payment processors (Stripe, Square, PayPal), and e-commerce platforms (Shopify, Amazon Seller). Each integration eliminates manual entry - the goal is for nothing to be typed twice.

Yes - we track economic nexus thresholds in every state where you have sales, register for state sales tax permits when thresholds are crossed, and file the periodic returns. For volume sellers we integrate with TaxJar or Avalara so calculation, collection, and remittance happen automatically across all states.

Every transaction is backed by a digital document (receipt, invoice, contract) stored in QBO; monthly reconciliations are signed off and locked; year-end review packs document the treatment of any non-routine items. If the IRS sends a notice, we respond on your behalf and have the supporting documentation already organised.

Free · 30 minutes · No obligation

Stop overpaying tax. Start filing in 5 days.

Thirty minutes with an ACCA-qualified accountant. Most owners uncover £1,000–£3,000 in annual savings on the first call. If we are not the right fit, you walk away with a free tax review on the house.

Joined by 240+ UK businesses this year
4.9 Google< 72h reply time30-day money-back