Penalty and interest estimator — free calculator
Shows how an information-return exposure compounds across unfiled years, independently of any tax owing.
- 15+Years of cross-border experience
- 18,000+Clients served
- 5.0Google rating
- 4Global offices — India, USA, Canada & UAE
Shows how an information-return exposure compounds across unfiled years, independently of any tax owing.
Enter your figures
An estimate for planning only. Rates and thresholds used here are the assumptions stated on this page; we confirm every figure against the issuing authority for your own tax year before anything is filed.
How the estimate is built
Information-return penalties are charged per form and per year and do not depend on tax being owed, which is how a filer with nothing to pay accumulates a substantial exposure. The catch-up programmes exist for exactly this asymmetry, and eligibility for them is assessed before anything is filed, because an ordinary late filing can close a route that was open the day before.
Your next step
A calculator narrows the range; it does not settle a filing. The first call establishes whether there is work to do. Everything after that is quoted.
Reviewed for accuracy for the 2025 and 2026 filing seasons by Udit Gupta, Cross-Border Tax Expert, Legal Quotient Consultants. Published as general information. For a position on your own file, call the 24-hour helpline.
Where US expat tax calculator comes into this file
The search that brings most people to this page is US expat tax calculator. It is answered here for penalty and interest estimator: what creates the obligation, which filings discharge it, and the fee agreed before the work starts.
The difference a dedicated cross-border team makes
18,000+ clients served
Individuals, expats and corporations across India, the USA, Canada and the UAE have filed with us — 15+ years of cross-border work.
Late and missed years are ordinary work
An unfiled history is not a reason to wait longer. We assess what is still open and what relief the delay attracts before the first return goes in.
One team, not two firms billing separately
You are not the go-between for two sets of advisers with two sets of assumptions. One engagement covers each country the file touches.
4 global offices
Meet us in person in India, the USA, Canada and the UAE, or send everything through the secure portal — the same process either way.
Files that look like this one
Exposure mapped across unfiled years before any route was chosen
A client knew several years of information returns had gone unfiled but had no picture of the scale, and no tax had ever been payable. The work was to establish which forms were due in which years, from the underlying accounts and holdings rather than from recollection. The engagement produced a year-by-year map of the obligations, an assessment of which catch-up routes remained open on those facts, and a filing plan carried out in the order the chosen route required.
A filer who had already filed one year and narrowed the options
Before coming to us the client had filed one late year on their own, hoping to make a start. That filing changed which routes were still available for the remaining years. We established what the earlier filing had done to the position, then assessed the options that survived it and chose between them on the facts. The engagement produced a written assessment of where that filing had left matters, and a completed catch-up under the route that remained, with the reasoning documented throughout.
Forms discovered during a mortgage application and brought current
A lender's request for filed returns surfaced reporting obligations the client had never been told about, with a deadline created by the mortgage rather than by the authority. We mapped the forms and years quickly, assessed which route was open, and sequenced the work so the lender's requirement and the catch-up did not pull against each other. The engagement produced the filings made under the chosen route and a documented position the client could show the lender without prejudicing the disclosure.
A letter from the authority arriving before the disclosure was made
Correspondence arrived while the client was still assembling documents, which changes the standing on which eligibility for a catch-up route is judged. We assessed what the letter did and did not do to the available options, responded within the time allowed, and worked out which routes remained. The engagement produced a documented response, a filing made on the route the facts still supported, and a clear written record of the sequence of events in case the treatment of those years is later revisited.
Several forms a year across a run of years with no tax owing
The client had multiple reporting obligations in each of a number of unfiled years and a nil tax position throughout, so the exposure was driven entirely by the count of forms and years. We established the obligations from the holdings themselves, quantified the exposure before any relief, and set that against what each available route would mean. The engagement produced the completed set of filings under the chosen route and a documented explanation of why no tax arose in any of the years covered.
Eligibility for a catch-up programme assessed on the facts first
The client wanted to file immediately and be done with it. We held the filings back until the position had been established, because eligibility is judged on where matters stand before anything goes in and an ordinary late filing can close a route. The assessment covered the years, the forms, the tax position and the current standing with the authority. The engagement produced a written eligibility assessment, the route chosen on it, and the filings prepared and submitted within that route in the required order.
Ten Years of Missed Returns Filed as One Engagement
Filing many years at once is a sequencing problem: carry-forwards, instalments and credits from the earliest year feed the latest. Filing them out of order is what turns a recoverable position into an assessed one.
Read how this one runsCatching Up From Inside the United States
The domestic route suits a filer who was resident in the US through the missed years, and it differs from the offshore one in what it asks for and what it costs. Choosing between them before anything is filed is the whole engagement.
Read how this one runsAll case studies — every published engagement in one place.
Core International & Cross-Border Tax Services
International Tax Planning & Advisory
Strategy and compliance for income, assets and families spread across borders.
U.S. & Cross-Border Tax Returns
Expat & Emigration Tax
Non-Resident Canadian Tax
Transfer Pricing & BEPS
Tax Treaties & Withholding
Cross-Border Estates & Trusts
Global Investments & Reporting
Cross-Border Corporate Tax
India Tax for NRIs & Returning Residents
Canadian Tax with a Foreign Element
UAE Tax for Expats & Their Home Country
Industries & Client Types We Serve Worldwide
Global E-commerce & Marketplaces
- Foreign VAT / GST / sales tax registrations
- Marketplace withholding reviews
- Inventory nexus & PE analysis
- Multi-currency books reconciled
Technology & SaaS
- Cross-border revenue sourcing & withholding
- IP structuring with real substance
- Equity for cross-border teams
- U.S. expansion: entity & PE setup
Professional Services Firms
- Reg 105 / 102 waivers
- Permanent establishment risk
- Partner mobility planning
- Cross-border withholding recovery
Cross-Border Real Estate
- Section 216 rental returns
- FIRPTA withholding recovery
- Section 116 clearance
- Treaty credit optimization
Importers, Exporters & Manufacturers
- Transfer pricing documentation (s.247)
- Customs value vs transfer price
- Foreign affiliate reporting (T1134)
- Country-by-country reporting
Athletes, Artists & Entertainers
- Reg 105 & U.S. CWA agreements
- Multi-state & country calendars
- Touring income allocation
- Royalty & image-rights withholding
Remote Workers & Digital Nomads
- Residency analysis before moving
- Employer payroll exposure
- Totalization & social security
- Foreign tax credits
Investment Funds & Holding Companies
Holding structures live or die on treaty access, beneficial ownership and substance — the MLI's principal-purpose test now sits over every arrangement.
A holding structure is only as good as its reporting. Foreign affiliates, accrued passive income and distributions each carry their own return, and the penalties on those attach to the form rather than to any tax being owed — so a structure that saves tax can still cost money if the information returns are late.
- Treaty access & PPT reviews
- FAPI & surplus computations
- Withholding-efficient routing
- Governance & substance
