US & India tax filing.
One secure, organized experience.

Expert support for individuals and businesses filing across the United States, United Kingdom, Canada and India.

USUKCAIN
8 yearsSpecialist-led tax support
4 countriesCoordinated global filings
S
Your filing workspaceSecure client workflow
Secure
Filing progressIn progress
Organizer receivedCompleted securely
2
Specialist reviewIn progress with your tax team
3
Approve & fileReview your final return
Return readyDocuments securely stored
Supported filings
USUKCAIN
Clear, fixed pricingPrivate document workspaceYear-round specialist accessCross-border coordination
Our services

Everything you need to file with confidence

From a straightforward individual return to complex business and cross-border matters, your filing stays organized in one secure workspace.

02

Business tax filing

Accurate filing and planning for founders, contractors, partnerships and companies.

Business services
04

ITIN applications

End-to-end ITIN support for taxpayers, spouses and dependants filing in the US.

Apply for an ITIN
05

Amended returns

Correct prior-year filings and resolve missing income, deductions or reporting.

Amend a return
06

Notices & representation

Professional help responding to tax notices, reviews, enquiries and audits.

Get representation
07

Tax planning

Practical planning for compensation, investments, property and business decisions.

Plan ahead
Where we file

Local expertise.
Global perspective.

Each country has its own filing rules, forms and deadlines. Our specialists bring them together when your life or business crosses borders.

Discuss a multi-country filing
UK

United Kingdom

Self Assessment, property, capital gains, overseas income and residency.

CA

Canada

T1 returns, self-employment, investments, rental income and T1135 support.

How it works

A calmer way to complete your taxes

01

Create your secure account

Tell us what you need and open a trackable service request.

02

Share your documents

Complete the organizer and upload files directly to your ticket.

03

Work with your specialist

Follow progress, answer questions and review drafts in one place.

04

Approve and file

Receive your finalized filing documents and a complete activity history.

Secure client portal

Your tax work, finally in one place.

Requests, documents, messages, assignments and final copies stay connected from start to finish.

Sign in to workspace
Track every request

Clear status, owner and next action.

Upload securely

Validated files in a private workspace.

Keep every conversation

A complete history attached to each ticket.

Client stories

Trusted when the details matter

★★★★★
“Professional, helpful and patient with every tax question. Four years later, they are still the team I trust.”
RSRam ShankarAtlanta, United States
★★★★★
“They handled our LLC and employee stock options exceptionally. The process was smooth and completed on time.”
DBDipankar BalasubramanianSan Jose, United States
★★★★★
“Moving countries made tax season stressful. Simplicon connected the details and gave us one clear plan.”
NKNisha KapoorLondon, United Kingdom
★★★★★
“Responsive, precise and refreshingly easy to work with. Our Canadian filing was organized from day one.”
MPMichael PereiraToronto, Canada
Ready when you are

Make this tax season simpler.

Start a secure request and let our specialists guide the next step.

Get started securely